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 1998-2013 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         char *close_reason;
 290
 291         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 292
 293         /* write only one pdu at a time - wait til it's our turn */
 294         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 295         if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
 296                 conn->c_writers < 0 ) {
 297                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 298                 return 0;
 299         }
 300
 301         conn->c_writers++;
 302
 303         while ( conn->c_writers > 0 && conn->c_writing ) {
 304                 ldap_pvt_thread_pool_idle( &connection_pool );
 305                 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
 306                 ldap_pvt_thread_pool_unidle( &connection_pool );
 307         }
 308
 309         /* connection was closed under us */
 310         if ( conn->c_writers < 0 ) {
 311                 /* we're the last waiter, let the closer continue */
 312                 if ( conn->c_writers == -1 )
 313                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 314                 conn->c_writers++;
 315                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 316                 return 0;
 317         }
 318
 319         /* Our turn */
 320         conn->c_writing = 1;
 321
 322         /* write the pdu */
 323         while( 1 ) {
 324                 int err;
 325
 326                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 327                         ret = bytes;
 328                         break;
 329                 }
 330
 331                 err = sock_errno();
 332
 333                 /*
 334                  * we got an error.  if it's ewouldblock, we need to
 335                  * wait on the socket being writable.  otherwise, figure
 336                  * it's a hard error and return.
 337                  */
 338
 339                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 340                     err, sock_errstr(err), 0 );
 341
 342                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 343                         close_reason = "connection lost on write";
 344 fail:
 345                         conn->c_writers--;
 346                         conn->c_writing = 0;
 347                         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 348                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 349                         connection_closing( conn, close_reason );
 350                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 351                         return -1;
 352                 }
 353
 354                 /* wait for socket to be write-ready */
 355                 conn->c_writewaiter = 1;
 356                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 357                 ldap_pvt_thread_pool_idle( &connection_pool );
 358                 err = slapd_wait_writer( conn->c_sd );
 359                 conn->c_writewaiter = 0;
 360                 ldap_pvt_thread_pool_unidle( &connection_pool );
 361                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 362                 /* 0 is timeout, so we close it.
 363                  * -1 is an error, close it.
 364                  */
 365                 if ( err <= 0 ) {
 366                         if ( err == 0 )
 367                                 close_reason = "writetimeout";
 368                         else
 369                                 close_reason = "connection lost on writewait";
 370                         goto fail;
 371                 }
 372
 373                 if ( conn->c_writers < 0 ) {
 374                         ret = 0;
 375                         break;
 376                 }
 377         }
 378
 379         conn->c_writing = 0;
 380         if ( conn->c_writers < 0 ) {
 381                 conn->c_writers++;
 382                 if ( !conn->c_writers )
 383                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 384         } else {
 385                 conn->c_writers--;
 386                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 387         }
 388         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 389
 390         return ret;
 391 }
 392
 393 static int
 394 send_ldap_control( BerElement *ber, LDAPControl *c )
 395 {
 396         int rc;
 397
 398         assert( c != NULL );
 399
 400         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 401
 402         if( c->ldctl_iscritical ) {
 403                 rc = ber_printf( ber, "b",
 404                         (ber_int_t) c->ldctl_iscritical ) ;
 405                 if( rc == -1 ) return rc;
 406         }
 407
 408         if( c->ldctl_value.bv_val != NULL ) {
 409                 rc = ber_printf( ber, "O", &c->ldctl_value );
 410                 if( rc == -1 ) return rc;
 411         }
 412
 413         rc = ber_printf( ber, /*{*/"N}" );
 414         if( rc == -1 ) return rc;
 415
 416         return 0;
 417 }
 418
 419 static int
 420 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 421 {
 422         int rc;
 423
 424         if( c == NULL )
 425                 return 0;
 426
 427         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 428         if( rc == -1 ) return rc;
 429
 430         for( ; *c != NULL; c++) {
 431                 rc = send_ldap_control( ber, *c );
 432                 if( rc == -1 ) return rc;
 433         }
 434
 435 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 436         /* this is a hack to avoid having to modify op->s_ctrls */
 437         if( o->o_sortedresults ) {
 438                 BerElementBuffer berbuf;
 439                 BerElement *sber = (BerElement *) &berbuf;
 440                 LDAPControl sorted;
 441                 BER_BVZERO( &sorted.ldctl_value );
 442                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 443                 sorted.ldctl_iscritical = 0;
 444
 445                 ber_init2( sber, NULL, LBER_USE_DER );
 446
 447                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 448
 449                 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
 450                         return -1;
 451                 }
 452
 453                 (void) ber_free_buf( sber );
 454
 455                 rc = send_ldap_control( ber, &sorted );
 456                 if( rc == -1 ) return rc;
 457         }
 458 #endif
 459
 460         rc = ber_printf( ber, /*{*/"N}" );
 461
 462         return rc;
 463 }
 464
 465 /*
 466  * slap_response_play()
 467  *
 468  * plays the callback list; rationale: a callback can
 469  *   - remove itself from the list, by setting op->o_callback = NULL;
 470  *     malloc()'ed callbacks should free themselves from inside the
 471  *     sc_response() function.
 472  *   - replace itself with another (list of) callback(s), by setting
 473  *     op->o_callback = a new (list of) callback(s); in this case, it
 474  *     is the callback's responsibility to to append existing subsequent
 475  *     callbacks to the end of the list that is passed to the sc_response()
 476  *     function.
 477  *   - modify the list of subsequent callbacks by modifying the value
 478  *     of the sc_next field from inside the sc_response() function; this
 479  *     case does not require any handling from inside slap_response_play()
 480  *
 481  * To stop execution of the playlist, the sc_response() function must return
 482  * a value different from SLAP_SC_CONTINUE.
 483  *
 484  * The same applies to slap_cleanup_play(); only, there is no means to stop
 485  * execution of the playlist, since all cleanup functions must be called.
 486  */
 487 static int
 488 slap_response_play(
 489         Operation *op,
 490         SlapReply *rs )
 491 {
 492         int rc;
 493
 494         slap_callback   *sc = op->o_callback, **scp;
 495
 496         rc = SLAP_CB_CONTINUE;
 497         for ( scp = &sc; *scp; ) {
 498                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 499
 500                 op->o_callback = *scp;
 501                 if ( op->o_callback->sc_response ) {
 502                         rc = op->o_callback->sc_response( op, rs );
 503                         if ( op->o_callback == NULL ) {
 504                                 /* the callback has been removed;
 505                                  * repair the list */
 506                                 *scp = sc_next;
 507                                 sc_nextp = scp;
 508
 509                         } else if ( op->o_callback != *scp ) {
 510                                 /* a new callback has been inserted
 511                                  * in place of the existing one; repair the list */
 512                                 *scp = op->o_callback;
 513                                 sc_nextp = scp;
 514                         }
 515                         if ( rc != SLAP_CB_CONTINUE ) break;
 516                 }
 517                 scp = sc_nextp;
 518         }
 519
 520         op->o_callback = sc;
 521         return rc;
 522 }
 523
 524 static int
 525 slap_cleanup_play(
 526         Operation *op,
 527         SlapReply *rs )
 528 {
 529         slap_callback   *sc = op->o_callback, **scp;
 530
 531         for ( scp = &sc; *scp; ) {
 532                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 533
 534                 op->o_callback = *scp;
 535                 if ( op->o_callback->sc_cleanup ) {
 536                         (void)op->o_callback->sc_cleanup( op, rs );
 537                         if ( op->o_callback == NULL ) {
 538                                 /* the callback has been removed;
 539                                  * repair the list */
 540                                 *scp = sc_next;
 541                                 sc_nextp = scp;
 542
 543                         } else if ( op->o_callback != *scp ) {
 544                                 /* a new callback has been inserted
 545                                  * after the existing one; repair the list */
 546                                 /* a new callback has been inserted
 547                                  * in place of the existing one; repair the list */
 548                                 *scp = op->o_callback;
 549                                 sc_nextp = scp;
 550                         }
 551                         /* don't care about the result; do all cleanup */
 552                 }
 553                 scp = sc_nextp;
 554         }
 555
 556         op->o_callback = sc;
 557         return LDAP_SUCCESS;
 558 }
 559
 560 static int
 561 send_ldap_response(
 562         Operation *op,
 563         SlapReply *rs )
 564 {
 565         BerElementBuffer berbuf;
 566         BerElement      *ber = (BerElement *) &berbuf;
 567         int             rc = LDAP_SUCCESS;
 568         long    bytes;
 569
 570         /* op was actually aborted, bypass everything if client didn't Cancel */
 571         if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) {
 572                 rc = SLAPD_ABANDON;
 573                 goto clean2;
 574         }
 575
 576         if ( op->o_callback ) {
 577                 rc = slap_response_play( op, rs );
 578                 if ( rc != SLAP_CB_CONTINUE ) {
 579                         goto clean2;
 580                 }
 581         }
 582
 583         /* op completed, connection aborted, bypass sending response */
 584         if ( op->o_abandon && !op->o_cancel ) {
 585                 rc = SLAPD_ABANDON;
 586                 goto clean2;
 587         }
 588
 589 #ifdef LDAP_CONNECTIONLESS
 590         if (op->o_conn && op->o_conn->c_is_udp)
 591                 ber = op->o_res_ber;
 592         else
 593 #endif
 594         {
 595                 ber_init_w_nullc( ber, LBER_USE_DER );
 596                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 597         }
 598
 599         rc = rs->sr_err;
 600         if ( rc == SLAPD_ABANDON && op->o_cancel )
 601                 rc = LDAP_CANCELLED;
 602
 603         Debug( LDAP_DEBUG_TRACE,
 604                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 605                 rs->sr_msgid, rs->sr_tag, rc );
 606
 607         if( rs->sr_ref ) {
 608                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 609                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 610                         NULL, NULL );
 611         }
 612
 613 #ifdef LDAP_CONNECTIONLESS
 614         if (op->o_conn && op->o_conn->c_is_udp &&
 615                 op->o_protocol == LDAP_VERSION2 )
 616         {
 617                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 618                         rs->sr_tag, rc,
 619                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 620                 rs->sr_text == NULL ? "" : rs->sr_text );
 621         } else
 622 #endif
 623         if ( rs->sr_type == REP_INTERMEDIATE ) {
 624             rc = ber_printf( ber, "{it{" /*"}}"*/,
 625                         rs->sr_msgid, rs->sr_tag );
 626
 627         } else {
 628             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 629                 rs->sr_msgid, rs->sr_tag, rc,
 630                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 631                 rs->sr_text == NULL ? "" : rs->sr_text );
 632         }
 633
 634         if( rc != -1 ) {
 635                 if ( rs->sr_ref != NULL ) {
 636                         assert( rs->sr_err == LDAP_REFERRAL );
 637                         rc = ber_printf( ber, "t{W}",
 638                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 639                 } else {
 640                         assert( rs->sr_err != LDAP_REFERRAL );
 641                 }
 642         }
 643
 644         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 645                 rc = ber_printf( ber, "tO",
 646                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 647         }
 648
 649         if( rc != -1 &&
 650                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 651         {
 652                 if ( rs->sr_rspoid != NULL ) {
 653                         rc = ber_printf( ber, "ts",
 654                                 rs->sr_type == REP_EXTENDED
 655                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 656                                 rs->sr_rspoid );
 657                 }
 658                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 659                         rc = ber_printf( ber, "tO",
 660                                 rs->sr_type == REP_EXTENDED
 661                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 662                                 rs->sr_rspdata );
 663                 }
 664         }
 665
 666         if( rc != -1 ) {
 667                 rc = ber_printf( ber, /*"{"*/ "N}" );
 668         }
 669
 670         if( rc != -1 ) {
 671                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 672         }
 673
 674         if( rc != -1 ) {
 675                 rc = ber_printf( ber, /*"{"*/ "N}" );
 676         }
 677
 678 #ifdef LDAP_CONNECTIONLESS
 679         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 680                 && rc != -1 )
 681         {
 682                 rc = ber_printf( ber, /*"{"*/ "N}" );
 683         }
 684 #endif
 685
 686         if ( rc == -1 ) {
 687                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 688
 689 #ifdef LDAP_CONNECTIONLESS
 690                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 691 #endif
 692                 {
 693                         ber_free_buf( ber );
 694                 }
 695                 goto cleanup;
 696         }
 697
 698         /* send BER */
 699         bytes = send_ldap_ber( op, ber );
 700 #ifdef LDAP_CONNECTIONLESS
 701         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 702 #endif
 703         {
 704                 ber_free_buf( ber );
 705         }
 706
 707         if ( bytes < 0 ) {
 708                 Debug( LDAP_DEBUG_ANY,
 709                         "send_ldap_response: ber write failed\n",
 710                         0, 0, 0 );
 711
 712                 goto cleanup;
 713         }
 714
 715         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 716         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 717         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 718         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 719
 720 cleanup:;
 721         /* Tell caller that we did this for real, as opposed to being
 722          * overridden by a callback
 723          */
 724         rc = SLAP_CB_CONTINUE;
 725
 726 clean2:;
 727         if ( op->o_callback ) {
 728                 (void)slap_cleanup_play( op, rs );
 729         }
 730
 731         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 732                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 733                 if ( rs->sr_matched ) {
 734                         free( (char *)rs->sr_matched );
 735                         rs->sr_matched = NULL;
 736                 }
 737         }
 738
 739         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 740                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 741                 if ( rs->sr_ref ) {
 742                         ber_bvarray_free( rs->sr_ref );
 743                         rs->sr_ref = NULL;
 744                 }
 745         }
 746
 747         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 748                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 749                 if ( rs->sr_ctrls ) {
 750                         slap_free_ctrls( op, rs->sr_ctrls );
 751                         rs->sr_ctrls = NULL;
 752                 }
 753         }
 754
 755         return rc;
 756 }
 757
 758
 759 void
 760 send_ldap_disconnect( Operation *op, SlapReply *rs )
 761 {
 762 #define LDAP_UNSOLICITED_ERROR(e) \
 763         (  (e) == LDAP_PROTOCOL_ERROR \
 764         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 765         || (e) == LDAP_UNAVAILABLE )
 766
 767         Debug( LDAP_DEBUG_TRACE,
 768                 "send_ldap_disconnect %d:%s\n",
 769                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 770         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 771
 772         /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */
 773         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 774         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 775
 776         rs->sr_type = REP_EXTENDED;
 777         rs->sr_rspdata = NULL;
 778
 779         if ( op->o_protocol < LDAP_VERSION3 ) {
 780                 rs->sr_rspoid = NULL;
 781                 rs->sr_tag = slap_req2res( op->o_tag );
 782                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 783
 784         } else {
 785                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 786                 rs->sr_tag = LDAP_RES_EXTENDED;
 787                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 788         }
 789
 790         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 791                 Statslog( LDAP_DEBUG_STATS,
 792                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 793                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 794                         rs->sr_text ? rs->sr_text : "", 0 );
 795         }
 796 }
 797
 798 void
 799 slap_send_ldap_result( Operation *op, SlapReply *rs )
 800 {
 801         char *tmp = NULL;
 802         const char *otext = rs->sr_text;
 803         BerVarray oref = rs->sr_ref;
 804
 805         rs->sr_type = REP_RESULT;
 806
 807         /* Propagate Abandons so that cleanup callbacks can be processed */
 808         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 809                 goto abandon;
 810
 811         Debug( LDAP_DEBUG_TRACE,
 812                 "send_ldap_result: %s p=%d\n",
 813                 op->o_log_prefix, op->o_protocol, 0 );
 814         Debug( LDAP_DEBUG_ARGS,
 815                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 816                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 817                 rs->sr_text ? rs->sr_text : "" );
 818         if( rs->sr_ref ) {
 819                 Debug( LDAP_DEBUG_ARGS,
 820                         "send_ldap_result: referral=\"%s\"\n",
 821                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 822                         NULL, NULL );
 823         }
 824         assert( !LDAP_API_ERROR( rs->sr_err ) );
 825         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 826
 827         if ( rs->sr_err == LDAP_REFERRAL ) {
 828                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 829
 830                 if( rs->sr_ref == NULL ) {
 831                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 832                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 833                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 834                 }
 835         }
 836
 837         if ( op->o_protocol < LDAP_VERSION3 ) {
 838                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 839                 rs->sr_text = tmp;
 840                 rs->sr_ref = NULL;
 841         }
 842
 843 abandon:
 844         rs->sr_tag = slap_req2res( op->o_tag );
 845         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 846
 847         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 848                 if ( rs->sr_ref == NULL ) {
 849                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 850                         ber_bvarray_free( oref );
 851                 }
 852                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 853         }
 854
 855         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 856                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 857                         Statslog( LDAP_DEBUG_STATS,
 858                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 859                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 860                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 861                 } else {
 862                         Statslog( LDAP_DEBUG_STATS,
 863                                 "%s RESULT tag=%lu err=%d text=%s\n",
 864                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 865                                 rs->sr_text ? rs->sr_text : "", 0 );
 866                 }
 867         }
 868
 869         if( tmp != NULL ) ch_free(tmp);
 870         rs->sr_text = otext;
 871         rs->sr_ref = oref;
 872 }
 873
 874 void
 875 send_ldap_sasl( Operation *op, SlapReply *rs )
 876 {
 877         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 878                 rs->sr_err,
 879                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 880
 881         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 882         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 883
 884         rs->sr_type = REP_SASL;
 885         rs->sr_tag = slap_req2res( op->o_tag );
 886         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 887
 888         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 889                 Statslog( LDAP_DEBUG_STATS,
 890                         "%s RESULT tag=%lu err=%d text=%s\n",
 891                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 892                         rs->sr_text ? rs->sr_text : "", 0 );
 893         }
 894 }
 895
 896 void
 897 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 898 {
 899         Debug( LDAP_DEBUG_TRACE,
 900                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 901                 rs->sr_err,
 902                 rs->sr_rspoid ? rs->sr_rspoid : "",
 903                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 904
 905         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 906         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 907
 908         rs->sr_type = REP_EXTENDED;
 909         rs->sr_tag = slap_req2res( op->o_tag );
 910         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 911
 912         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 913                 Statslog( LDAP_DEBUG_STATS,
 914                         "%s RESULT oid=%s err=%d text=%s\n",
 915                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 916                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 917         }
 918 }
 919
 920 void
 921 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 922 {
 923         Debug( LDAP_DEBUG_TRACE,
 924                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 925                 rs->sr_err,
 926                 rs->sr_rspoid ? rs->sr_rspoid : "",
 927                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 928
 929         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 930         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 931
 932         rs->sr_type = REP_INTERMEDIATE;
 933         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 934         rs->sr_msgid = op->o_msgid;
 935         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 936                 Statslog( LDAP_DEBUG_STATS2,
 937                         "%s INTERM oid=%s\n",
 938                         op->o_log_prefix,
 939                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 940         }
 941 }
 942
 943 #define set_ldap_error( rs, err, text ) do { \
 944                 (rs)->sr_err = err; (rs)->sr_text = text; } while(0)
 945
 946 /*
 947  * returns:
 948  *
 949  * LDAP_SUCCESS                 entry sent
 950  * LDAP_OTHER                   entry not sent (other)
 951  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 952  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 953  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 954  */
 955
 956 int
 957 slap_send_search_entry( Operation *op, SlapReply *rs )
 958 {
 959         BerElementBuffer berbuf;
 960         BerElement      *ber = (BerElement *) &berbuf;
 961         Attribute       *a;
 962         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 963         int             userattrs;
 964         AccessControlState acl_state = ACL_STATE_INIT;
 965         int                      attrsonly;
 966         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 967
 968         /* a_flags: array of flags telling if the i-th element will be
 969          *          returned or filtered out
 970          * e_flags: array of a_flags
 971          */
 972         char **e_flags = NULL;
 973
 974         rs->sr_type = REP_SEARCH;
 975
 976         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 977                 rc = LDAP_SIZELIMIT_EXCEEDED;
 978                 goto error_return;
 979         }
 980
 981         /* Every 64 entries, check for thread pool pause */
 982         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 983                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 984         {
 985                 rc = LDAP_BUSY;
 986                 goto error_return;
 987         }
 988
 989         /* eventually will loop through generated operational attribute types
 990          * currently implemented types include:
 991          *      entryDN, subschemaSubentry, and hasSubordinates */
 992         /* NOTE: moved before overlays callback circling because
 993          * they may modify entry and other stuff in rs */
 994         /* check for special all operational attributes ("+") type */
 995         /* FIXME: maybe we could set this flag at the operation level;
 996          * however, in principle the caller of send_search_entry() may
 997          * change the attribute list at each call */
 998         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 999
1000         rc = backend_operational( op, rs );
1001         if ( rc ) {
1002                 goto error_return;
1003         }
1004
1005         if ( op->o_callback ) {
1006                 rc = slap_response_play( op, rs );
1007                 if ( rc != SLAP_CB_CONTINUE ) {
1008                         goto error_return;
1009                 }
1010         }
1011
1012         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
1013                 op->o_connid, rs->sr_entry->e_name.bv_val,
1014                 op->ors_attrsonly ? " (attrsOnly)" : "" );
1015
1016         attrsonly = op->ors_attrsonly;
1017
1018         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
1019                 Debug( LDAP_DEBUG_ACL,
1020                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
1021                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
1022
1023                 rc = LDAP_INSUFFICIENT_ACCESS;
1024                 goto error_return;
1025         }
1026
1027         if ( op->o_res_ber ) {
1028                 /* read back control or LDAP_CONNECTIONLESS */
1029             ber = op->o_res_ber;
1030         } else {
1031                 struct berval   bv;
1032
1033                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1034                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1035
1036                 ber_init2( ber, &bv, LBER_USE_DER );
1037                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1038         }
1039
1040 #ifdef LDAP_CONNECTIONLESS
1041         if ( op->o_conn && op->o_conn->c_is_udp ) {
1042                 /* CONNECTIONLESS */
1043                 if ( op->o_protocol == LDAP_VERSION2 ) {
1044                 rc = ber_printf(ber, "t{O{" /*}}*/,
1045                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1046                 } else {
1047                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1048                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1049                 }
1050         } else
1051 #endif
1052         if ( op->o_res_ber ) {
1053                 /* read back control */
1054             rc = ber_printf( ber, "t{O{" /*}}*/,
1055                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1056         } else {
1057             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1058                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1059         }
1060
1061         if ( rc == -1 ) {
1062                 Debug( LDAP_DEBUG_ANY,
1063                         "send_search_entry: conn %lu  ber_printf failed\n",
1064                         op->o_connid, 0, 0 );
1065
1066                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1067                 set_ldap_error( rs, LDAP_OTHER, "encoding DN error" );
1068                 rc = rs->sr_err;
1069                 goto error_return;
1070         }
1071
1072         /* check for special all user attributes ("*") type */
1073         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
1074
1075         /* create an array of arrays of flags. Each flag corresponds
1076          * to particular value of attribute and equals 1 if value matches
1077          * to ValuesReturnFilter or 0 if not
1078          */
1079         if ( op->o_vrFilter != NULL ) {
1080                 int     k = 0;
1081                 size_t  size;
1082
1083                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1084                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1085                 }
1086
1087                 size = i * sizeof(char *) + k;
1088                 if ( size > 0 ) {
1089                         char    *a_flags;
1090                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
1091                         if( e_flags == NULL ) {
1092                         Debug( LDAP_DEBUG_ANY,
1093                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
1094                                         op->o_connid, 0, 0 );
1095                                 ber_free( ber, 1 );
1096
1097                                 set_ldap_error( rs, LDAP_OTHER, "out of memory" );
1098                                 goto error_return;
1099                         }
1100                         a_flags = (char *)(e_flags + i);
1101                         memset( a_flags, 0, k );
1102                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
1103                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1104                                 e_flags[i] = a_flags;
1105                                 a_flags += j;
1106                         }
1107
1108                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
1109                         if ( rc == -1 ) {
1110                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
1111                                         "conn %lu matched values filtering failed\n",
1112                                         op->o_connid, 0, 0 );
1113                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1114                                 set_ldap_error( rs, LDAP_OTHER,
1115                                         "matched values filtering error" );
1116                                 rc = rs->sr_err;
1117                                 goto error_return;
1118                         }
1119                 }
1120         }
1121
1122         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
1123                 AttributeDescription *desc = a->a_desc;
1124                 int finish = 0;
1125
1126                 if ( rs->sr_attrs == NULL ) {
1127                         /* all user attrs request, skip operational attributes */
1128                         if( is_at_operational( desc->ad_type ) ) {
1129                                 continue;
1130                         }
1131
1132                 } else {
1133                         /* specific attrs requested */
1134                         if ( is_at_operational( desc->ad_type ) ) {
1135                                 /* if not explicitly requested */
1136                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
1137                                         /* if not all op attrs requested, skip */
1138                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
1139                                                 continue;
1140                                         /* if DSA-specific and replicating, skip */
1141                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
1142                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1143                                                 continue;
1144                                 }
1145                         } else {
1146                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1147                                         continue;
1148                                 }
1149                         }
1150                 }
1151
1152                 if ( attrsonly ) {
1153                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1154                                 ACL_READ, &acl_state ) )
1155                         {
1156                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
1157                                         "conn %lu access to attribute %s not allowed\n",
1158                                         op->o_connid, desc->ad_cname.bv_val, 0 );
1159                                 continue;
1160                         }
1161
1162                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1163                                 Debug( LDAP_DEBUG_ANY,
1164                                         "send_search_entry: conn %lu  ber_printf failed\n",
1165                                         op->o_connid, 0, 0 );
1166
1167                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1168                                 set_ldap_error( rs, LDAP_OTHER,
1169                                         "encoding description error");
1170                                 rc = rs->sr_err;
1171                                 goto error_return;
1172                         }
1173                         finish = 1;
1174
1175                 } else {
1176                         int first = 1;
1177                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
1178                                 if ( ! access_allowed( op, rs->sr_entry,
1179                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
1180                                 {
1181                                         Debug( LDAP_DEBUG_ACL,
1182                                                 "send_search_entry: conn %lu "
1183                                                 "access to attribute %s, value #%d not allowed\n",
1184                                                 op->o_connid, desc->ad_cname.bv_val, i );
1185
1186                                         continue;
1187                                 }
1188
1189                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1190                                         continue;
1191                                 }
1192
1193                                 if ( first ) {
1194                                         first = 0;
1195                                         finish = 1;
1196                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1197                                                 Debug( LDAP_DEBUG_ANY,
1198                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1199                                                         op->o_connid, 0, 0 );
1200
1201                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1202                                                 set_ldap_error( rs, LDAP_OTHER,
1203                                                         "encoding description error");
1204                                                 rc = rs->sr_err;
1205                                                 goto error_return;
1206                                         }
1207                                 }
1208                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1209                                         Debug( LDAP_DEBUG_ANY,
1210                                                 "send_search_entry: conn %lu  "
1211                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1212
1213                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1214                                         set_ldap_error( rs, LDAP_OTHER,
1215                                                 "encoding values error" );
1216                                         rc = rs->sr_err;
1217                                         goto error_return;
1218                                 }
1219                         }
1220                 }
1221
1222                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1223                         Debug( LDAP_DEBUG_ANY,
1224                                 "send_search_entry: conn %lu ber_printf failed\n",
1225                                 op->o_connid, 0, 0 );
1226
1227                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1228                         set_ldap_error( rs, LDAP_OTHER, "encode end error" );
1229                         rc = rs->sr_err;
1230                         goto error_return;
1231                 }
1232         }
1233
1234         /* NOTE: moved before overlays callback circling because
1235          * they may modify entry and other stuff in rs */
1236         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1237                 int     k = 0;
1238                 size_t  size;
1239
1240                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1241                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1242                 }
1243
1244                 size = i * sizeof(char *) + k;
1245                 if ( size > 0 ) {
1246                         char    *a_flags, **tmp;
1247
1248                         /*
1249                          * Reuse previous memory - we likely need less space
1250                          * for operational attributes
1251                          */
1252                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1253                                 op->o_tmpmemctx );
1254                         if ( tmp == NULL ) {
1255                                 Debug( LDAP_DEBUG_ANY,
1256                                         "send_search_entry: conn %lu "
1257                                         "not enough memory "
1258                                         "for matched values filtering\n",
1259                                         op->o_connid, 0, 0 );
1260                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1261                                 set_ldap_error( rs, LDAP_OTHER,
1262                                         "not enough memory for matched values filtering" );
1263                                 goto error_return;
1264                         }
1265                         e_flags = tmp;
1266                         a_flags = (char *)(e_flags + i);
1267                         memset( a_flags, 0, k );
1268                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1269                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1270                                 e_flags[i] = a_flags;
1271                                 a_flags += j;
1272                         }
1273                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1274
1275                         if ( rc == -1 ) {
1276                                 Debug( LDAP_DEBUG_ANY,
1277                                         "send_search_entry: conn %lu "
1278                                         "matched values filtering failed\n",
1279                                         op->o_connid, 0, 0);
1280                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1281                                 set_ldap_error( rs, LDAP_OTHER,
1282                                         "matched values filtering error" );
1283                                 rc = rs->sr_err;
1284                                 goto error_return;
1285                         }
1286                 }
1287         }
1288
1289         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1290                 AttributeDescription *desc = a->a_desc;
1291
1292                 if ( rs->sr_attrs == NULL ) {
1293                         /* all user attrs request, skip operational attributes */
1294                         if( is_at_operational( desc->ad_type ) ) {
1295                                 continue;
1296                         }
1297
1298                 } else {
1299                         /* specific attrs requested */
1300                         if( is_at_operational( desc->ad_type ) ) {
1301                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1302                                         !ad_inlist( desc, rs->sr_attrs ) )
1303                                 {
1304                                         continue;
1305                                 }
1306                                 /* if DSA-specific and replicating, skip */
1307                                 if ( op->o_sync != SLAP_CONTROL_NONE &&
1308                                         desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1309                                         continue;
1310                         } else {
1311                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1312                                         continue;
1313                                 }
1314                         }
1315                 }
1316
1317                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1318                         ACL_READ, &acl_state ) )
1319                 {
1320                         Debug( LDAP_DEBUG_ACL,
1321                                 "send_search_entry: conn %lu "
1322                                 "access to attribute %s not allowed\n",
1323                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1324
1325                         continue;
1326                 }
1327
1328                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1329                 if ( rc == -1 ) {
1330                         Debug( LDAP_DEBUG_ANY,
1331                                 "send_search_entry: conn %lu  "
1332                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1333
1334                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1335                         set_ldap_error( rs, LDAP_OTHER,
1336                                 "encoding description error" );
1337                         rc = rs->sr_err;
1338                         goto error_return;
1339                 }
1340
1341                 if ( ! attrsonly ) {
1342                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1343                                 if ( ! access_allowed( op, rs->sr_entry,
1344                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1345                                 {
1346                                         Debug( LDAP_DEBUG_ACL,
1347                                                 "send_search_entry: conn %lu "
1348                                                 "access to %s, value %d not allowed\n",
1349                                                 op->o_connid, desc->ad_cname.bv_val, i );
1350
1351                                         continue;
1352                                 }
1353
1354                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1355                                         continue;
1356                                 }
1357
1358                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1359                                         Debug( LDAP_DEBUG_ANY,
1360                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1361                                                 op->o_connid, 0, 0 );
1362
1363                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1364                                         set_ldap_error( rs, LDAP_OTHER,
1365                                                 "encoding values error" );
1366                                         rc = rs->sr_err;
1367                                         goto error_return;
1368                                 }
1369                         }
1370                 }
1371
1372                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1373                         Debug( LDAP_DEBUG_ANY,
1374                                 "send_search_entry: conn %lu  ber_printf failed\n",
1375                                 op->o_connid, 0, 0 );
1376
1377                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1378                         set_ldap_error( rs, LDAP_OTHER, "encode end error" );
1379                         rc = rs->sr_err;
1380                         goto error_return;
1381                 }
1382         }
1383
1384         /* free e_flags */
1385         if ( e_flags ) {
1386                 slap_sl_free( e_flags, op->o_tmpmemctx );
1387                 e_flags = NULL;
1388         }
1389
1390         rc = ber_printf( ber, /*{{*/ "}N}" );
1391
1392         if( rc != -1 ) {
1393                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1394         }
1395
1396         if( rc != -1 ) {
1397 #ifdef LDAP_CONNECTIONLESS
1398                 if( op->o_conn && op->o_conn->c_is_udp ) {
1399                         if ( op->o_protocol != LDAP_VERSION2 ) {
1400                                 rc = ber_printf( ber, /*{*/ "N}" );
1401                         }
1402                 } else
1403 #endif
1404                 if ( op->o_res_ber == NULL ) {
1405                         rc = ber_printf( ber, /*{*/ "N}" );
1406                 }
1407         }
1408
1409         if ( rc == -1 ) {
1410                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1411
1412                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1413                 set_ldap_error( rs, LDAP_OTHER, "encode entry end error" );
1414                 rc = rs->sr_err;
1415                 goto error_return;
1416         }
1417
1418         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1419             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1420
1421         rs_flush_entry( op, rs, NULL );
1422
1423         if ( op->o_res_ber == NULL ) {
1424                 bytes = send_ldap_ber( op, ber );
1425                 ber_free_buf( ber );
1426
1427                 if ( bytes < 0 ) {
1428                         Debug( LDAP_DEBUG_ANY,
1429                                 "send_search_entry: conn %lu  ber write failed.\n",
1430                                 op->o_connid, 0, 0 );
1431
1432                         rc = LDAP_UNAVAILABLE;
1433                         goto error_return;
1434                 }
1435                 rs->sr_nentries++;
1436
1437                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1438                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1439                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1440                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1441                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1442         }
1443
1444         Debug( LDAP_DEBUG_TRACE,
1445                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1446
1447         rc = LDAP_SUCCESS;
1448
1449 error_return:;
1450         if ( op->o_callback ) {
1451                 (void)slap_cleanup_play( op, rs );
1452         }
1453
1454         if ( e_flags ) {
1455                 slap_sl_free( e_flags, op->o_tmpmemctx );
1456         }
1457
1458         /* FIXME: Can break if rs now contains an extended response */
1459         if ( rs->sr_operational_attrs ) {
1460                 attrs_free( rs->sr_operational_attrs );
1461                 rs->sr_operational_attrs = NULL;
1462         }
1463         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1464
1465         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
1466                 rs_flush_entry( op, rs, NULL );
1467         } else {
1468                 RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 );
1469         }
1470
1471         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1472                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1473                 if ( rs->sr_ctrls ) {
1474                         slap_free_ctrls( op, rs->sr_ctrls );
1475                         rs->sr_ctrls = NULL;
1476                 }
1477         }
1478
1479         return( rc );
1480 }
1481
1482 int
1483 slap_send_search_reference( Operation *op, SlapReply *rs )
1484 {
1485         BerElementBuffer berbuf;
1486         BerElement      *ber = (BerElement *) &berbuf;
1487         int rc = 0;
1488         int bytes;
1489         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1490
1491         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1492         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1493
1494         rs->sr_type = REP_SEARCHREF;
1495         if ( op->o_callback ) {
1496                 rc = slap_response_play( op, rs );
1497                 if ( rc != SLAP_CB_CONTINUE ) {
1498                         goto rel;
1499                 }
1500         }
1501
1502         Debug( LDAP_DEBUG_TRACE,
1503                 "=> send_search_reference: dn=\"%s\"\n",
1504                 edn, 0, 0 );
1505
1506         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1507                 ad_entry, NULL, ACL_READ, NULL ) )
1508         {
1509                 Debug( LDAP_DEBUG_ACL,
1510                         "send_search_reference: access to entry not allowed\n",
1511                     0, 0, 0 );
1512                 rc = 1;
1513                 goto rel;
1514         }
1515
1516         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1517                 ad_ref, NULL, ACL_READ, NULL ) )
1518         {
1519                 Debug( LDAP_DEBUG_ACL,
1520                         "send_search_reference: access "
1521                         "to reference not allowed\n",
1522                     0, 0, 0 );
1523                 rc = 1;
1524                 goto rel;
1525         }
1526
1527         if( op->o_domain_scope ) {
1528                 Debug( LDAP_DEBUG_ANY,
1529                         "send_search_reference: domainScope control in (%s)\n",
1530                         edn, 0, 0 );
1531                 rc = 0;
1532                 goto rel;
1533         }
1534
1535         if( rs->sr_ref == NULL ) {
1536                 Debug( LDAP_DEBUG_ANY,
1537                         "send_search_reference: null ref in (%s)\n",
1538                         edn, 0, 0 );
1539                 rc = 1;
1540                 goto rel;
1541         }
1542
1543         if( op->o_protocol < LDAP_VERSION3 ) {
1544                 rc = 0;
1545                 /* save the references for the result */
1546                 if( rs->sr_ref[0].bv_val != NULL ) {
1547                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1548                                 rc = LDAP_OTHER;
1549                 }
1550                 goto rel;
1551         }
1552
1553 #ifdef LDAP_CONNECTIONLESS
1554         if( op->o_conn && op->o_conn->c_is_udp ) {
1555                 ber = op->o_res_ber;
1556         } else
1557 #endif
1558         {
1559                 ber_init_w_nullc( ber, LBER_USE_DER );
1560                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1561         }
1562
1563         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1564                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1565
1566         if( rc != -1 ) {
1567                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1568         }
1569
1570         if( rc != -1 ) {
1571                 rc = ber_printf( ber, /*"{"*/ "N}" );
1572         }
1573
1574         if ( rc == -1 ) {
1575                 Debug( LDAP_DEBUG_ANY,
1576                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1577
1578 #ifdef LDAP_CONNECTIONLESS
1579                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1580 #endif
1581                 ber_free_buf( ber );
1582                 set_ldap_error( rs, LDAP_OTHER, "encode DN error" );
1583                 goto rel;
1584         }
1585
1586         rc = 0;
1587         rs_flush_entry( op, rs, NULL );
1588
1589 #ifdef LDAP_CONNECTIONLESS
1590         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1591 #endif
1592         bytes = send_ldap_ber( op, ber );
1593         ber_free_buf( ber );
1594
1595         if ( bytes < 0 ) {
1596                 rc = LDAP_UNAVAILABLE;
1597         } else {
1598                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1599                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1600                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1601                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1602                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1603         }
1604 #ifdef LDAP_CONNECTIONLESS
1605         }
1606 #endif
1607         if ( rs->sr_ref != NULL ) {
1608                 int     r;
1609
1610                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1611                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1612                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1613                                 0, 0 );
1614                 }
1615
1616         } else {
1617                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1618                         op->o_log_prefix, 0, 0, 0, 0 );
1619         }
1620
1621         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1622
1623         if ( 0 ) {
1624 rel:
1625             rs_flush_entry( op, rs, NULL );
1626         }
1627
1628         if ( op->o_callback ) {
1629                 (void)slap_cleanup_play( op, rs );
1630         }
1631
1632         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1633                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1634                 if ( rs->sr_ctrls ) {
1635                         slap_free_ctrls( op, rs->sr_ctrls );
1636                         rs->sr_ctrls = NULL;
1637                 }
1638         }
1639
1640         return rc;
1641 }
1642
1643 int
1644 str2result(
1645     char        *s,
1646     int         *code,
1647     char        **matched,
1648     char        **info )
1649 {
1650         int     rc;
1651         char    *c;
1652
1653         *code = LDAP_SUCCESS;
1654         *matched = NULL;
1655         *info = NULL;
1656
1657         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1658                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1659                     s, 0, 0 );
1660
1661                 return( -1 );
1662         }
1663
1664         rc = 0;
1665         while ( (s = strchr( s, '\n' )) != NULL ) {
1666                 *s++ = '\0';
1667                 if ( *s == '\0' ) {
1668                         break;
1669                 }
1670                 if ( (c = strchr( s, ':' )) != NULL ) {
1671                         c++;
1672                 }
1673
1674                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1675                         char    *next = NULL;
1676                         long    retcode;
1677
1678                         if ( c == NULL ) {
1679                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1680                                     s, 0, 0 );
1681                                 rc = -1;
1682                                 continue;
1683                         }
1684
1685                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1686                         if ( c[ 0 ] == '\0' ) {
1687                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1688                                     s, 0, 0 );
1689                                 rc = -1;
1690                                 continue;
1691                         }
1692
1693                         retcode = strtol( c, &next, 10 );
1694                         if ( next == NULL || next == c ) {
1695                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1696                                     s, 0, 0 );
1697                                 rc = -1;
1698                                 continue;
1699                         }
1700
1701                         while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' )
1702                                 next++;
1703                         if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) {
1704                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1705                                     s, 0, 0 );
1706                                 rc = -1;
1707                                 continue;
1708                         }
1709
1710                         /* FIXME: what if it's larger than max int? */
1711                         *code = (int)retcode;
1712
1713                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1714                         if ( c != NULL ) {
1715                                 *matched = c;
1716                         }
1717                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1718                         if ( c != NULL ) {
1719                                 *info = c;
1720                         }
1721                 } else {
1722                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1723                             s, 0, 0 );
1724
1725                         rc = -1;
1726                 }
1727         }
1728
1729         return( rc );
1730 }
1731
1732 int slap_read_controls(
1733         Operation *op,
1734         SlapReply *rs,
1735         Entry *e,
1736         const struct berval *oid,
1737         LDAPControl **ctrl )
1738 {
1739         int rc;
1740         struct berval bv;
1741         BerElementBuffer berbuf;
1742         BerElement *ber = (BerElement *) &berbuf;
1743         LDAPControl c;
1744         Operation myop;
1745
1746         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1747                 op->o_log_prefix, oid->bv_val, e->e_dn );
1748
1749         rs->sr_entry = e;
1750         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1751                 op->o_preread_attrs : op->o_postread_attrs;
1752
1753         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1754         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1755
1756         ber_init2( ber, &bv, LBER_USE_DER );
1757         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1758
1759         /* create new operation */
1760         myop = *op;
1761         /* FIXME: o_bd needed for ACL */
1762         myop.o_bd = op->o_bd;
1763         myop.o_res_ber = ber;
1764         myop.o_callback = NULL;
1765         myop.ors_slimit = 1;
1766         myop.ors_attrsonly = 0;
1767
1768         rc = slap_send_search_entry( &myop, rs );
1769         if( rc ) return rc;
1770
1771         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1772
1773         if( rc == -1 ) return LDAP_OTHER;
1774
1775         c.ldctl_oid = oid->bv_val;
1776         c.ldctl_iscritical = 0;
1777
1778         if ( *ctrl == NULL ) {
1779                 /* first try */
1780                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1781         } else {
1782                 /* retry: free previous try */
1783                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1784         }
1785
1786         **ctrl = c;
1787         return LDAP_SUCCESS;
1788 }
1789
1790 /* Map API errors to protocol errors... */
1791 int
1792 slap_map_api2result( SlapReply *rs )
1793 {
1794         switch(rs->sr_err) {
1795         case LDAP_SERVER_DOWN:
1796                 return LDAP_UNAVAILABLE;
1797         case LDAP_LOCAL_ERROR:
1798                 return LDAP_OTHER;
1799         case LDAP_ENCODING_ERROR:
1800         case LDAP_DECODING_ERROR:
1801                 return LDAP_PROTOCOL_ERROR;
1802         case LDAP_TIMEOUT:
1803                 return LDAP_UNAVAILABLE;
1804         case LDAP_AUTH_UNKNOWN:
1805                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1806         case LDAP_FILTER_ERROR:
1807                 rs->sr_text = "Filter error";
1808                 return LDAP_OTHER;
1809         case LDAP_USER_CANCELLED:
1810                 rs->sr_text = "User cancelled";
1811                 return LDAP_OTHER;
1812         case LDAP_PARAM_ERROR:
1813                 return LDAP_PROTOCOL_ERROR;
1814         case LDAP_NO_MEMORY:
1815                 return LDAP_OTHER;
1816         case LDAP_CONNECT_ERROR:
1817                 return LDAP_UNAVAILABLE;
1818         case LDAP_NOT_SUPPORTED:
1819                 return LDAP_UNWILLING_TO_PERFORM;
1820         case LDAP_CONTROL_NOT_FOUND:
1821                 return LDAP_PROTOCOL_ERROR;
1822         case LDAP_NO_RESULTS_RETURNED:
1823                 return LDAP_NO_SUCH_OBJECT;
1824         case LDAP_MORE_RESULTS_TO_RETURN:
1825                 rs->sr_text = "More results to return";
1826                 return LDAP_OTHER;
1827         case LDAP_CLIENT_LOOP:
1828         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1829                 return LDAP_LOOP_DETECT;
1830         default:
1831                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1832                 return rs->sr_err;
1833         }
1834 }
1835
1836
1837 slap_mask_t
1838 slap_attr_flags( AttributeName *an )
1839 {
1840         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1841
1842         if ( an == NULL ) {
1843                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1844
1845         } else {
1846                 flags |= an_find( an, slap_bv_all_operational_attrs )
1847                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1848                 flags |= an_find( an, slap_bv_all_user_attrs )
1849                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1850         }
1851
1852         return flags;
1853 }