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 1998-2014 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 /*
 136  * SlapReply debugging enabled by USE_RS_ASSERT.
 137  *
 138  * Disabled by default, but compiled in (but still unused) when
 139  * LDAP_TEST.  #define USE_RS_ASSERT as nonzero to enable some
 140  * assertions which check the SlapReply.  USE_RS_ASSERT = 2 or higher
 141  * check aggressively, currently some code fail these tests.
 142  *
 143  * Environment variable $NO_RS_ASSERT controls how USE_RS_ASSERT handles
 144  * errors.  > 0: ignore errors, 0: abort (the default), < 0: just warn.
 145  *
 146  * Wrap LDAP operation calls in macros SLAP_OP() & co from proto-slap.h
 147  * to check the SlapReply.  contrib/slapd-tools/wrap_slap_ops converts
 148  * source code to use the macros.
 149  */
 150 #if defined(LDAP_TEST) || (defined(USE_RS_ASSERT) && (USE_RS_ASSERT))
 151
 152 int rs_suppress_assert = 0;
 153
 154 /* RS_ASSERT() helper function */
 155 void rs_assert_(const char*file, unsigned line, const char*fn, const char*cond)
 156 {
 157         int no_assert = rs_suppress_assert, save_errno = errno;
 158         const char *s;
 159
 160         if ( no_assert >= 0 ) {
 161                 if ( no_assert == 0 && (s = getenv( "NO_RS_ASSERT" )) && *s ) {
 162                         no_assert = rs_suppress_assert = atoi( s );
 163                 }
 164                 if ( no_assert > 0 ) {
 165                         errno = save_errno;
 166                         return;
 167                 }
 168         }
 169
 170 #ifdef rs_assert_       /* proto-slap.h #defined away the fn parameter */
 171         fprintf( stderr,"%s:%u: "  "RS_ASSERT(%s) failed.\n", file,line,cond );
 172 #else
 173         fprintf( stderr,"%s:%u: %s: RS_ASSERT(%s) failed.\n", file,line,fn,cond );
 174 #endif
 175         fflush( stderr );
 176
 177         errno = save_errno;
 178         /* $NO_RS_ASSERT > 0: ignore rs_asserts, 0: abort, < 0: just warn */
 179         if ( !no_assert /* from $NO_RS_ASSERT */ ) abort();
 180 }
 181
 182 /* SlapReply is consistent */
 183 void
 184 (rs_assert_ok)( const SlapReply *rs )
 185 {
 186         const slap_mask_t flags = rs->sr_flags;
 187
 188         if ( flags & REP_ENTRY_MASK ) {
 189                 RS_ASSERT( !(flags & REP_ENTRY_MUSTRELEASE)
 190                         || !(flags & (REP_ENTRY_MASK ^ REP_ENTRY_MUSTRELEASE)) );
 191                 RS_ASSERT( rs->sr_entry != NULL );
 192                 RS_ASSERT( (1 << rs->sr_type) &
 193                         ((1 << REP_SEARCH) | (1 << REP_SEARCHREF) |
 194                          (1 << REP_RESULT) | (1 << REP_GLUE_RESULT)) );
 195         }
 196 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 197         if ( (flags & (REP_MATCHED_MASK | REP_REF_MASK | REP_CTRLS_MASK)) ) {
 198                 RS_ASSERT( !(flags & REP_MATCHED_MASK) || rs->sr_matched );
 199                 RS_ASSERT( !(flags & REP_CTRLS_MASK  ) || rs->sr_ctrls   );
 200                 /* Note: LDAP_REFERRAL + !sr_ref is OK, becomes LDAP_NO_SUCH_OBJECT */
 201         }
 202 #if (USE_RS_ASSERT) > 2
 203         if ( rs->sr_err == LDAP_SUCCESS ) {
 204                 RS_ASSERT( rs->sr_text == NULL );
 205                 RS_ASSERT( rs->sr_matched == NULL );
 206         }
 207 #endif
 208 #endif
 209 }
 210
 211 /* Ready for calling a new backend operation */
 212 void
 213 (rs_assert_ready)( const SlapReply *rs )
 214 {
 215         RS_ASSERT( !rs->sr_entry   );
 216 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 217         RS_ASSERT( !rs->sr_text    );
 218         RS_ASSERT( !rs->sr_ref     );
 219         RS_ASSERT( !rs->sr_matched );
 220         RS_ASSERT( !rs->sr_ctrls   );
 221         RS_ASSERT( !rs->sr_flags   );
 222 #if (USE_RS_ASSERT) > 2
 223         RS_ASSERT( rs->sr_err == LDAP_SUCCESS );
 224 #endif
 225 #else
 226         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 227 #endif
 228 }
 229
 230 /* Backend operation done */
 231 void
 232 (rs_assert_done)( const SlapReply *rs )
 233 {
 234 #if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
 235         RS_ASSERT( !(rs->sr_flags & ~(REP_ENTRY_MODIFIABLE|REP_NO_OPERATIONALS)) );
 236         rs_assert_ok( rs );
 237 #else
 238         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MUSTFLUSH) );
 239 #endif
 240 }
 241
 242 #endif /* LDAP_TEST || USE_RS_ASSERT */
 243
 244 /* Reset a used SlapReply whose contents has been flushed (freed/released) */
 245 void
 246 (rs_reinit)( SlapReply *rs, slap_reply_t type )
 247 {
 248         rs_reinit( rs, type );          /* proto-slap.h macro */
 249 }
 250
 251 /* Obey and clear rs->sr_flags & REP_ENTRY_MASK.  Clear sr_entry if freed. */
 252 void
 253 rs_flush_entry( Operation *op, SlapReply *rs, slap_overinst *on )
 254 {
 255         rs_assert_ok( rs );
 256
 257         if ( (rs->sr_flags & REP_ENTRY_MUSTFLUSH) && rs->sr_entry != NULL ) {
 258                 if ( !(rs->sr_flags & REP_ENTRY_MUSTRELEASE) ) {
 259                         entry_free( rs->sr_entry );
 260                 } else if ( on != NULL ) {
 261                         overlay_entry_release_ov( op, rs->sr_entry, 0, on );
 262                 } else {
 263                         be_entry_release_rw( op, rs->sr_entry, 0 );
 264                 }
 265                 rs->sr_entry = NULL;
 266         }
 267
 268         rs->sr_flags &= ~REP_ENTRY_MASK;
 269 }
 270
 271 /* Set rs->sr_entry after obeying and clearing sr_flags & REP_ENTRY_MASK. */
 272 void
 273 rs_replace_entry( Operation *op, SlapReply *rs, slap_overinst *on, Entry *e )
 274 {
 275         rs_flush_entry( op, rs, on );
 276         rs->sr_entry = e;
 277 }
 278
 279 /*
 280  * Ensure rs->sr_entry is modifiable, by duplicating it if necessary.
 281  * Obey sr_flags.  Set REP_ENTRY_<MODIFIABLE, and MUSTBEFREED if duplicated>.
 282  * Return nonzero if rs->sr_entry was replaced.
 283  */
 284 int
 285 rs_entry2modifiable( Operation *op, SlapReply *rs, slap_overinst *on )
 286 {
 287         if ( rs->sr_flags & REP_ENTRY_MODIFIABLE ) {
 288                 rs_assert_ok( rs );
 289                 return 0;
 290         }
 291         rs_replace_entry( op, rs, on, entry_dup( rs->sr_entry ));
 292         rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED;
 293         return 1;
 294 }
 295
 296 static long send_ldap_ber(
 297         Operation *op,
 298         BerElement *ber )
 299 {
 300         Connection *conn = op->o_conn;
 301         ber_len_t bytes;
 302         long ret = 0;
 303         char *close_reason;
 304
 305         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 306
 307         /* write only one pdu at a time - wait til it's our turn */
 308         ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 309         if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
 310                 conn->c_writers < 0 ) {
 311                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 312                 return 0;
 313         }
 314
 315         conn->c_writers++;
 316
 317         while ( conn->c_writers > 0 && conn->c_writing ) {
 318                 ldap_pvt_thread_pool_idle( &connection_pool );
 319                 ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
 320                 ldap_pvt_thread_pool_unidle( &connection_pool );
 321         }
 322
 323         /* connection was closed under us */
 324         if ( conn->c_writers < 0 ) {
 325                 /* we're the last waiter, let the closer continue */
 326                 if ( conn->c_writers == -1 )
 327                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 328                 conn->c_writers++;
 329                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 330                 return 0;
 331         }
 332
 333         /* Our turn */
 334         conn->c_writing = 1;
 335
 336         /* write the pdu */
 337         while( 1 ) {
 338                 int err;
 339
 340                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 341                         ret = bytes;
 342                         break;
 343                 }
 344
 345                 err = sock_errno();
 346
 347                 /*
 348                  * we got an error.  if it's ewouldblock, we need to
 349                  * wait on the socket being writable.  otherwise, figure
 350                  * it's a hard error and return.
 351                  */
 352
 353                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 354                     err, sock_errstr(err), 0 );
 355
 356                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 357                         close_reason = "connection lost on write";
 358 fail:
 359                         conn->c_writers--;
 360                         conn->c_writing = 0;
 361                         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 362                         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 363                         connection_closing( conn, close_reason );
 364                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 365                         return -1;
 366                 }
 367
 368                 /* wait for socket to be write-ready */
 369                 conn->c_writewaiter = 1;
 370                 ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 371                 ldap_pvt_thread_pool_idle( &connection_pool );
 372                 err = slapd_wait_writer( conn->c_sd );
 373                 conn->c_writewaiter = 0;
 374                 ldap_pvt_thread_pool_unidle( &connection_pool );
 375                 ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
 376                 /* 0 is timeout, so we close it.
 377                  * -1 is an error, close it.
 378                  */
 379                 if ( err <= 0 ) {
 380                         if ( err == 0 )
 381                                 close_reason = "writetimeout";
 382                         else
 383                                 close_reason = "connection lost on writewait";
 384                         goto fail;
 385                 }
 386
 387                 if ( conn->c_writers < 0 ) {
 388                         ret = 0;
 389                         break;
 390                 }
 391         }
 392
 393         conn->c_writing = 0;
 394         if ( conn->c_writers < 0 ) {
 395                 conn->c_writers++;
 396                 if ( !conn->c_writers )
 397                         ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 398         } else {
 399                 conn->c_writers--;
 400                 ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
 401         }
 402         ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
 403
 404         return ret;
 405 }
 406
 407 static int
 408 send_ldap_control( BerElement *ber, LDAPControl *c )
 409 {
 410         int rc;
 411
 412         assert( c != NULL );
 413
 414         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 415
 416         if( c->ldctl_iscritical ) {
 417                 rc = ber_printf( ber, "b",
 418                         (ber_int_t) c->ldctl_iscritical ) ;
 419                 if( rc == -1 ) return rc;
 420         }
 421
 422         if( c->ldctl_value.bv_val != NULL ) {
 423                 rc = ber_printf( ber, "O", &c->ldctl_value );
 424                 if( rc == -1 ) return rc;
 425         }
 426
 427         rc = ber_printf( ber, /*{*/"N}" );
 428         if( rc == -1 ) return rc;
 429
 430         return 0;
 431 }
 432
 433 static int
 434 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 435 {
 436         int rc;
 437
 438         if( c == NULL )
 439                 return 0;
 440
 441         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 442         if( rc == -1 ) return rc;
 443
 444         for( ; *c != NULL; c++) {
 445                 rc = send_ldap_control( ber, *c );
 446                 if( rc == -1 ) return rc;
 447         }
 448
 449 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 450         /* this is a hack to avoid having to modify op->s_ctrls */
 451         if( o->o_sortedresults ) {
 452                 BerElementBuffer berbuf;
 453                 BerElement *sber = (BerElement *) &berbuf;
 454                 LDAPControl sorted;
 455                 BER_BVZERO( &sorted.ldctl_value );
 456                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 457                 sorted.ldctl_iscritical = 0;
 458
 459                 ber_init2( sber, NULL, LBER_USE_DER );
 460
 461                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 462
 463                 if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
 464                         return -1;
 465                 }
 466
 467                 (void) ber_free_buf( sber );
 468
 469                 rc = send_ldap_control( ber, &sorted );
 470                 if( rc == -1 ) return rc;
 471         }
 472 #endif
 473
 474         rc = ber_printf( ber, /*{*/"N}" );
 475
 476         return rc;
 477 }
 478
 479 /*
 480  * slap_response_play()
 481  *
 482  * plays the callback list; rationale: a callback can
 483  *   - remove itself from the list, by setting op->o_callback = NULL;
 484  *     malloc()'ed callbacks should free themselves from inside the
 485  *     sc_response() function.
 486  *   - replace itself with another (list of) callback(s), by setting
 487  *     op->o_callback = a new (list of) callback(s); in this case, it
 488  *     is the callback's responsibility to to append existing subsequent
 489  *     callbacks to the end of the list that is passed to the sc_response()
 490  *     function.
 491  *   - modify the list of subsequent callbacks by modifying the value
 492  *     of the sc_next field from inside the sc_response() function; this
 493  *     case does not require any handling from inside slap_response_play()
 494  *
 495  * To stop execution of the playlist, the sc_response() function must return
 496  * a value different from SLAP_SC_CONTINUE.
 497  *
 498  * The same applies to slap_cleanup_play(); only, there is no means to stop
 499  * execution of the playlist, since all cleanup functions must be called.
 500  */
 501 static int
 502 slap_response_play(
 503         Operation *op,
 504         SlapReply *rs )
 505 {
 506         int rc;
 507
 508         slap_callback   *sc = op->o_callback, **scp;
 509
 510         rc = SLAP_CB_CONTINUE;
 511         for ( scp = &sc; *scp; ) {
 512                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 513
 514                 op->o_callback = *scp;
 515                 if ( op->o_callback->sc_response ) {
 516                         rc = op->o_callback->sc_response( op, rs );
 517                         if ( op->o_callback == NULL ) {
 518                                 /* the callback has been removed;
 519                                  * repair the list */
 520                                 *scp = sc_next;
 521                                 sc_nextp = scp;
 522
 523                         } else if ( op->o_callback != *scp ) {
 524                                 /* a new callback has been inserted
 525                                  * in place of the existing one; repair the list */
 526                                 *scp = op->o_callback;
 527                                 sc_nextp = scp;
 528                         }
 529                         if ( rc != SLAP_CB_CONTINUE ) break;
 530                 }
 531                 scp = sc_nextp;
 532         }
 533
 534         op->o_callback = sc;
 535         return rc;
 536 }
 537
 538 static int
 539 slap_cleanup_play(
 540         Operation *op,
 541         SlapReply *rs )
 542 {
 543         slap_callback   *sc = op->o_callback, **scp;
 544
 545         for ( scp = &sc; *scp; ) {
 546                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 547
 548                 op->o_callback = *scp;
 549                 if ( op->o_callback->sc_cleanup ) {
 550                         (void)op->o_callback->sc_cleanup( op, rs );
 551                         if ( op->o_callback == NULL ) {
 552                                 /* the callback has been removed;
 553                                  * repair the list */
 554                                 *scp = sc_next;
 555                                 sc_nextp = scp;
 556
 557                         } else if ( op->o_callback != *scp ) {
 558                                 /* a new callback has been inserted
 559                                  * after the existing one; repair the list */
 560                                 /* a new callback has been inserted
 561                                  * in place of the existing one; repair the list */
 562                                 *scp = op->o_callback;
 563                                 sc_nextp = scp;
 564                         }
 565                         /* don't care about the result; do all cleanup */
 566                 }
 567                 scp = sc_nextp;
 568         }
 569
 570         op->o_callback = sc;
 571         return LDAP_SUCCESS;
 572 }
 573
 574 static int
 575 send_ldap_response(
 576         Operation *op,
 577         SlapReply *rs )
 578 {
 579         BerElementBuffer berbuf;
 580         BerElement      *ber = (BerElement *) &berbuf;
 581         int             rc = LDAP_SUCCESS;
 582         long    bytes;
 583
 584         /* op was actually aborted, bypass everything if client didn't Cancel */
 585         if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) {
 586                 rc = SLAPD_ABANDON;
 587                 goto clean2;
 588         }
 589
 590         if ( op->o_callback ) {
 591                 rc = slap_response_play( op, rs );
 592                 if ( rc != SLAP_CB_CONTINUE ) {
 593                         goto clean2;
 594                 }
 595         }
 596
 597         /* op completed, connection aborted, bypass sending response */
 598         if ( op->o_abandon && !op->o_cancel ) {
 599                 rc = SLAPD_ABANDON;
 600                 goto clean2;
 601         }
 602
 603 #ifdef LDAP_CONNECTIONLESS
 604         if (op->o_conn && op->o_conn->c_is_udp)
 605                 ber = op->o_res_ber;
 606         else
 607 #endif
 608         {
 609                 ber_init_w_nullc( ber, LBER_USE_DER );
 610                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 611         }
 612
 613         rc = rs->sr_err;
 614         if ( rc == SLAPD_ABANDON && op->o_cancel )
 615                 rc = LDAP_CANCELLED;
 616
 617         Debug( LDAP_DEBUG_TRACE,
 618                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 619                 rs->sr_msgid, rs->sr_tag, rc );
 620
 621         if( rs->sr_ref ) {
 622                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 623                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 624                         NULL, NULL );
 625         }
 626
 627 #ifdef LDAP_CONNECTIONLESS
 628         if (op->o_conn && op->o_conn->c_is_udp &&
 629                 op->o_protocol == LDAP_VERSION2 )
 630         {
 631                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 632                         rs->sr_tag, rc,
 633                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 634                 rs->sr_text == NULL ? "" : rs->sr_text );
 635         } else
 636 #endif
 637         if ( rs->sr_type == REP_INTERMEDIATE ) {
 638             rc = ber_printf( ber, "{it{" /*"}}"*/,
 639                         rs->sr_msgid, rs->sr_tag );
 640
 641         } else {
 642             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 643                 rs->sr_msgid, rs->sr_tag, rc,
 644                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 645                 rs->sr_text == NULL ? "" : rs->sr_text );
 646         }
 647
 648         if( rc != -1 ) {
 649                 if ( rs->sr_ref != NULL ) {
 650                         assert( rs->sr_err == LDAP_REFERRAL );
 651                         rc = ber_printf( ber, "t{W}",
 652                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 653                 } else {
 654                         assert( rs->sr_err != LDAP_REFERRAL );
 655                 }
 656         }
 657
 658         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 659                 rc = ber_printf( ber, "tO",
 660                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 661         }
 662
 663         if( rc != -1 &&
 664                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 665         {
 666                 if ( rs->sr_rspoid != NULL ) {
 667                         rc = ber_printf( ber, "ts",
 668                                 rs->sr_type == REP_EXTENDED
 669                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 670                                 rs->sr_rspoid );
 671                 }
 672                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 673                         rc = ber_printf( ber, "tO",
 674                                 rs->sr_type == REP_EXTENDED
 675                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 676                                 rs->sr_rspdata );
 677                 }
 678         }
 679
 680         if( rc != -1 ) {
 681                 rc = ber_printf( ber, /*"{"*/ "N}" );
 682         }
 683
 684         if( rc != -1 ) {
 685                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 686         }
 687
 688         if( rc != -1 ) {
 689                 rc = ber_printf( ber, /*"{"*/ "N}" );
 690         }
 691
 692 #ifdef LDAP_CONNECTIONLESS
 693         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 694                 && rc != -1 )
 695         {
 696                 rc = ber_printf( ber, /*"{"*/ "N}" );
 697         }
 698 #endif
 699
 700         if ( rc == -1 ) {
 701                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 702
 703 #ifdef LDAP_CONNECTIONLESS
 704                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 705 #endif
 706                 {
 707                         ber_free_buf( ber );
 708                 }
 709                 goto cleanup;
 710         }
 711
 712         /* send BER */
 713         bytes = send_ldap_ber( op, ber );
 714 #ifdef LDAP_CONNECTIONLESS
 715         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 716 #endif
 717         {
 718                 ber_free_buf( ber );
 719         }
 720
 721         if ( bytes < 0 ) {
 722                 Debug( LDAP_DEBUG_ANY,
 723                         "send_ldap_response: ber write failed\n",
 724                         0, 0, 0 );
 725
 726                 goto cleanup;
 727         }
 728
 729         ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
 730         ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
 731         ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
 732         ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
 733
 734 cleanup:;
 735         /* Tell caller that we did this for real, as opposed to being
 736          * overridden by a callback
 737          */
 738         rc = SLAP_CB_CONTINUE;
 739
 740 clean2:;
 741         if ( op->o_callback ) {
 742                 (void)slap_cleanup_play( op, rs );
 743         }
 744
 745         if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 746                 rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
 747                 if ( rs->sr_matched ) {
 748                         free( (char *)rs->sr_matched );
 749                         rs->sr_matched = NULL;
 750                 }
 751         }
 752
 753         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 754                 rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
 755                 if ( rs->sr_ref ) {
 756                         ber_bvarray_free( rs->sr_ref );
 757                         rs->sr_ref = NULL;
 758                 }
 759         }
 760
 761         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
 762                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
 763                 if ( rs->sr_ctrls ) {
 764                         slap_free_ctrls( op, rs->sr_ctrls );
 765                         rs->sr_ctrls = NULL;
 766                 }
 767         }
 768
 769         return rc;
 770 }
 771
 772
 773 void
 774 send_ldap_disconnect( Operation *op, SlapReply *rs )
 775 {
 776 #define LDAP_UNSOLICITED_ERROR(e) \
 777         (  (e) == LDAP_PROTOCOL_ERROR \
 778         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 779         || (e) == LDAP_UNAVAILABLE )
 780
 781         Debug( LDAP_DEBUG_TRACE,
 782                 "send_ldap_disconnect %d:%s\n",
 783                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 784         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 785
 786         /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */
 787         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 788         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 789
 790         rs->sr_type = REP_EXTENDED;
 791         rs->sr_rspdata = NULL;
 792
 793         if ( op->o_protocol < LDAP_VERSION3 ) {
 794                 rs->sr_rspoid = NULL;
 795                 rs->sr_tag = slap_req2res( op->o_tag );
 796                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 797
 798         } else {
 799                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 800                 rs->sr_tag = LDAP_RES_EXTENDED;
 801                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 802         }
 803
 804         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 805                 Statslog( LDAP_DEBUG_STATS,
 806                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 807                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 808                         rs->sr_text ? rs->sr_text : "", 0 );
 809         }
 810 }
 811
 812 void
 813 slap_send_ldap_result( Operation *op, SlapReply *rs )
 814 {
 815         char *tmp = NULL;
 816         const char *otext = rs->sr_text;
 817         BerVarray oref = rs->sr_ref;
 818
 819         rs->sr_type = REP_RESULT;
 820
 821         /* Propagate Abandons so that cleanup callbacks can be processed */
 822         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 823                 goto abandon;
 824
 825         Debug( LDAP_DEBUG_TRACE,
 826                 "send_ldap_result: %s p=%d\n",
 827                 op->o_log_prefix, op->o_protocol, 0 );
 828         Debug( LDAP_DEBUG_ARGS,
 829                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 830                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 831                 rs->sr_text ? rs->sr_text : "" );
 832         if( rs->sr_ref ) {
 833                 Debug( LDAP_DEBUG_ARGS,
 834                         "send_ldap_result: referral=\"%s\"\n",
 835                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 836                         NULL, NULL );
 837         }
 838         assert( !LDAP_API_ERROR( rs->sr_err ) );
 839         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 840
 841         if ( rs->sr_err == LDAP_REFERRAL ) {
 842                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 843
 844                 if( rs->sr_ref == NULL ) {
 845                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 846                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 847                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 848                 }
 849         }
 850
 851         if ( op->o_protocol < LDAP_VERSION3 ) {
 852                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 853                 rs->sr_text = tmp;
 854                 rs->sr_ref = NULL;
 855         }
 856
 857 abandon:
 858         rs->sr_tag = slap_req2res( op->o_tag );
 859         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 860
 861         if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
 862                 if ( rs->sr_ref == NULL ) {
 863                         rs->sr_flags ^= REP_REF_MUSTBEFREED;
 864                         ber_bvarray_free( oref );
 865                 }
 866                 oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
 867         }
 868
 869         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 870                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 871                         Statslog( LDAP_DEBUG_STATS,
 872                                 "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
 873                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 874                                 rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
 875                 } else {
 876                         Statslog( LDAP_DEBUG_STATS,
 877                                 "%s RESULT tag=%lu err=%d text=%s\n",
 878                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 879                                 rs->sr_text ? rs->sr_text : "", 0 );
 880                 }
 881         }
 882
 883         if( tmp != NULL ) ch_free(tmp);
 884         rs->sr_text = otext;
 885         rs->sr_ref = oref;
 886 }
 887
 888 void
 889 send_ldap_sasl( Operation *op, SlapReply *rs )
 890 {
 891         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 892                 rs->sr_err,
 893                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 894
 895         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 896         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 897
 898         rs->sr_type = REP_SASL;
 899         rs->sr_tag = slap_req2res( op->o_tag );
 900         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 901
 902         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 903                 Statslog( LDAP_DEBUG_STATS,
 904                         "%s RESULT tag=%lu err=%d text=%s\n",
 905                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 906                         rs->sr_text ? rs->sr_text : "", 0 );
 907         }
 908 }
 909
 910 void
 911 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 912 {
 913         Debug( LDAP_DEBUG_TRACE,
 914                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 915                 rs->sr_err,
 916                 rs->sr_rspoid ? rs->sr_rspoid : "",
 917                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 918
 919         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 920         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 921
 922         rs->sr_type = REP_EXTENDED;
 923         rs->sr_tag = slap_req2res( op->o_tag );
 924         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 925
 926         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 927                 Statslog( LDAP_DEBUG_STATS,
 928                         "%s RESULT oid=%s err=%d text=%s\n",
 929                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 930                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 931         }
 932 }
 933
 934 void
 935 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 936 {
 937         Debug( LDAP_DEBUG_TRACE,
 938                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 939                 rs->sr_err,
 940                 rs->sr_rspoid ? rs->sr_rspoid : "",
 941                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 942
 943         RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
 944         rs->sr_flags &= ~REP_ENTRY_MASK;        /* paranoia */
 945
 946         rs->sr_type = REP_INTERMEDIATE;
 947         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 948         rs->sr_msgid = op->o_msgid;
 949         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 950                 Statslog( LDAP_DEBUG_STATS2,
 951                         "%s INTERM oid=%s\n",
 952                         op->o_log_prefix,
 953                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 954         }
 955 }
 956
 957 #define set_ldap_error( rs, err, text ) do { \
 958                 (rs)->sr_err = err; (rs)->sr_text = text; } while(0)
 959
 960 /*
 961  * returns:
 962  *
 963  * LDAP_SUCCESS                 entry sent
 964  * LDAP_OTHER                   entry not sent (other)
 965  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 966  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 967  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 968  */
 969
 970 int
 971 slap_send_search_entry( Operation *op, SlapReply *rs )
 972 {
 973         BerElementBuffer berbuf;
 974         BerElement      *ber = (BerElement *) &berbuf;
 975         Attribute       *a;
 976         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 977         int             userattrs;
 978         AccessControlState acl_state = ACL_STATE_INIT;
 979         int                      attrsonly;
 980         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 981
 982         /* a_flags: array of flags telling if the i-th element will be
 983          *          returned or filtered out
 984          * e_flags: array of a_flags
 985          */
 986         char **e_flags = NULL;
 987
 988         rs->sr_type = REP_SEARCH;
 989
 990         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 991                 rc = LDAP_SIZELIMIT_EXCEEDED;
 992                 goto error_return;
 993         }
 994
 995         /* Every 64 entries, check for thread pool pause */
 996         if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
 997                 ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
 998         {
 999                 rc = LDAP_BUSY;
1000                 goto error_return;
1001         }
1002
1003         /* eventually will loop through generated operational attribute types
1004          * currently implemented types include:
1005          *      entryDN, subschemaSubentry, and hasSubordinates */
1006         /* NOTE: moved before overlays callback circling because
1007          * they may modify entry and other stuff in rs */
1008         /* check for special all operational attributes ("+") type */
1009         /* FIXME: maybe we could set this flag at the operation level;
1010          * however, in principle the caller of send_search_entry() may
1011          * change the attribute list at each call */
1012         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
1013
1014         rc = backend_operational( op, rs );
1015         if ( rc ) {
1016                 goto error_return;
1017         }
1018
1019         if ( op->o_callback ) {
1020                 rc = slap_response_play( op, rs );
1021                 if ( rc != SLAP_CB_CONTINUE ) {
1022                         goto error_return;
1023                 }
1024         }
1025
1026         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
1027                 op->o_connid, rs->sr_entry->e_name.bv_val,
1028                 op->ors_attrsonly ? " (attrsOnly)" : "" );
1029
1030         attrsonly = op->ors_attrsonly;
1031
1032         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
1033                 Debug( LDAP_DEBUG_ACL,
1034                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
1035                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
1036
1037                 rc = LDAP_INSUFFICIENT_ACCESS;
1038                 goto error_return;
1039         }
1040
1041         if ( op->o_res_ber ) {
1042                 /* read back control or LDAP_CONNECTIONLESS */
1043             ber = op->o_res_ber;
1044         } else {
1045                 struct berval   bv;
1046
1047                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1048                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1049
1050                 ber_init2( ber, &bv, LBER_USE_DER );
1051                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1052         }
1053
1054 #ifdef LDAP_CONNECTIONLESS
1055         if ( op->o_conn && op->o_conn->c_is_udp ) {
1056                 /* CONNECTIONLESS */
1057                 if ( op->o_protocol == LDAP_VERSION2 ) {
1058                 rc = ber_printf(ber, "t{O{" /*}}*/,
1059                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1060                 } else {
1061                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1062                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1063                 }
1064         } else
1065 #endif
1066         if ( op->o_res_ber ) {
1067                 /* read back control */
1068             rc = ber_printf( ber, "t{O{" /*}}*/,
1069                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1070         } else {
1071             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
1072                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
1073         }
1074
1075         if ( rc == -1 ) {
1076                 Debug( LDAP_DEBUG_ANY,
1077                         "send_search_entry: conn %lu  ber_printf failed\n",
1078                         op->o_connid, 0, 0 );
1079
1080                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1081                 set_ldap_error( rs, LDAP_OTHER, "encoding DN error" );
1082                 rc = rs->sr_err;
1083                 goto error_return;
1084         }
1085
1086         /* check for special all user attributes ("*") type */
1087         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
1088
1089         /* create an array of arrays of flags. Each flag corresponds
1090          * to particular value of attribute and equals 1 if value matches
1091          * to ValuesReturnFilter or 0 if not
1092          */
1093         if ( op->o_vrFilter != NULL ) {
1094                 int     k = 0;
1095                 size_t  size;
1096
1097                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1098                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1099                 }
1100
1101                 size = i * sizeof(char *) + k;
1102                 if ( size > 0 ) {
1103                         char    *a_flags;
1104                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
1105                         if( e_flags == NULL ) {
1106                         Debug( LDAP_DEBUG_ANY,
1107                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
1108                                         op->o_connid, 0, 0 );
1109                                 ber_free( ber, 1 );
1110
1111                                 set_ldap_error( rs, LDAP_OTHER, "out of memory" );
1112                                 goto error_return;
1113                         }
1114                         a_flags = (char *)(e_flags + i);
1115                         memset( a_flags, 0, k );
1116                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
1117                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1118                                 e_flags[i] = a_flags;
1119                                 a_flags += j;
1120                         }
1121
1122                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
1123                         if ( rc == -1 ) {
1124                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
1125                                         "conn %lu matched values filtering failed\n",
1126                                         op->o_connid, 0, 0 );
1127                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1128                                 set_ldap_error( rs, LDAP_OTHER,
1129                                         "matched values filtering error" );
1130                                 rc = rs->sr_err;
1131                                 goto error_return;
1132                         }
1133                 }
1134         }
1135
1136         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
1137                 AttributeDescription *desc = a->a_desc;
1138                 int finish = 0;
1139
1140                 if ( rs->sr_attrs == NULL ) {
1141                         /* all user attrs request, skip operational attributes */
1142                         if( is_at_operational( desc->ad_type ) ) {
1143                                 continue;
1144                         }
1145
1146                 } else {
1147                         /* specific attrs requested */
1148                         if ( is_at_operational( desc->ad_type ) ) {
1149                                 /* if not explicitly requested */
1150                                 if ( !ad_inlist( desc, rs->sr_attrs )) {
1151                                         /* if not all op attrs requested, skip */
1152                                         if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
1153                                                 continue;
1154                                         /* if DSA-specific and replicating, skip */
1155                                         if ( op->o_sync != SLAP_CONTROL_NONE &&
1156                                                 desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1157                                                 continue;
1158                                 }
1159                         } else {
1160                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1161                                         continue;
1162                                 }
1163                         }
1164                 }
1165
1166                 if ( attrsonly ) {
1167                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1168                                 ACL_READ, &acl_state ) )
1169                         {
1170                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
1171                                         "conn %lu access to attribute %s not allowed\n",
1172                                         op->o_connid, desc->ad_cname.bv_val, 0 );
1173                                 continue;
1174                         }
1175
1176                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1177                                 Debug( LDAP_DEBUG_ANY,
1178                                         "send_search_entry: conn %lu  ber_printf failed\n",
1179                                         op->o_connid, 0, 0 );
1180
1181                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1182                                 set_ldap_error( rs, LDAP_OTHER,
1183                                         "encoding description error");
1184                                 rc = rs->sr_err;
1185                                 goto error_return;
1186                         }
1187                         finish = 1;
1188
1189                 } else {
1190                         int first = 1;
1191                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
1192                                 if ( ! access_allowed( op, rs->sr_entry,
1193                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
1194                                 {
1195                                         Debug( LDAP_DEBUG_ACL,
1196                                                 "send_search_entry: conn %lu "
1197                                                 "access to attribute %s, value #%d not allowed\n",
1198                                                 op->o_connid, desc->ad_cname.bv_val, i );
1199
1200                                         continue;
1201                                 }
1202
1203                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1204                                         continue;
1205                                 }
1206
1207                                 if ( first ) {
1208                                         first = 0;
1209                                         finish = 1;
1210                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1211                                                 Debug( LDAP_DEBUG_ANY,
1212                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1213                                                         op->o_connid, 0, 0 );
1214
1215                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1216                                                 set_ldap_error( rs, LDAP_OTHER,
1217                                                         "encoding description error");
1218                                                 rc = rs->sr_err;
1219                                                 goto error_return;
1220                                         }
1221                                 }
1222                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1223                                         Debug( LDAP_DEBUG_ANY,
1224                                                 "send_search_entry: conn %lu  "
1225                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1226
1227                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1228                                         set_ldap_error( rs, LDAP_OTHER,
1229                                                 "encoding values error" );
1230                                         rc = rs->sr_err;
1231                                         goto error_return;
1232                                 }
1233                         }
1234                 }
1235
1236                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1237                         Debug( LDAP_DEBUG_ANY,
1238                                 "send_search_entry: conn %lu ber_printf failed\n",
1239                                 op->o_connid, 0, 0 );
1240
1241                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1242                         set_ldap_error( rs, LDAP_OTHER, "encode end error" );
1243                         rc = rs->sr_err;
1244                         goto error_return;
1245                 }
1246         }
1247
1248         /* NOTE: moved before overlays callback circling because
1249          * they may modify entry and other stuff in rs */
1250         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1251                 int     k = 0;
1252                 size_t  size;
1253
1254                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1255                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1256                 }
1257
1258                 size = i * sizeof(char *) + k;
1259                 if ( size > 0 ) {
1260                         char    *a_flags, **tmp;
1261
1262                         /*
1263                          * Reuse previous memory - we likely need less space
1264                          * for operational attributes
1265                          */
1266                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1267                                 op->o_tmpmemctx );
1268                         if ( tmp == NULL ) {
1269                                 Debug( LDAP_DEBUG_ANY,
1270                                         "send_search_entry: conn %lu "
1271                                         "not enough memory "
1272                                         "for matched values filtering\n",
1273                                         op->o_connid, 0, 0 );
1274                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1275                                 set_ldap_error( rs, LDAP_OTHER,
1276                                         "not enough memory for matched values filtering" );
1277                                 goto error_return;
1278                         }
1279                         e_flags = tmp;
1280                         a_flags = (char *)(e_flags + i);
1281                         memset( a_flags, 0, k );
1282                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1283                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1284                                 e_flags[i] = a_flags;
1285                                 a_flags += j;
1286                         }
1287                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1288
1289                         if ( rc == -1 ) {
1290                                 Debug( LDAP_DEBUG_ANY,
1291                                         "send_search_entry: conn %lu "
1292                                         "matched values filtering failed\n",
1293                                         op->o_connid, 0, 0);
1294                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1295                                 set_ldap_error( rs, LDAP_OTHER,
1296                                         "matched values filtering error" );
1297                                 rc = rs->sr_err;
1298                                 goto error_return;
1299                         }
1300                 }
1301         }
1302
1303         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1304                 AttributeDescription *desc = a->a_desc;
1305
1306                 if ( rs->sr_attrs == NULL ) {
1307                         /* all user attrs request, skip operational attributes */
1308                         if( is_at_operational( desc->ad_type ) ) {
1309                                 continue;
1310                         }
1311
1312                 } else {
1313                         /* specific attrs requested */
1314                         if( is_at_operational( desc->ad_type ) ) {
1315                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1316                                         !ad_inlist( desc, rs->sr_attrs ) )
1317                                 {
1318                                         continue;
1319                                 }
1320                                 /* if DSA-specific and replicating, skip */
1321                                 if ( op->o_sync != SLAP_CONTROL_NONE &&
1322                                         desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
1323                                         continue;
1324                         } else {
1325                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1326                                         continue;
1327                                 }
1328                         }
1329                 }
1330
1331                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1332                         ACL_READ, &acl_state ) )
1333                 {
1334                         Debug( LDAP_DEBUG_ACL,
1335                                 "send_search_entry: conn %lu "
1336                                 "access to attribute %s not allowed\n",
1337                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1338
1339                         continue;
1340                 }
1341
1342                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1343                 if ( rc == -1 ) {
1344                         Debug( LDAP_DEBUG_ANY,
1345                                 "send_search_entry: conn %lu  "
1346                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1347
1348                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1349                         set_ldap_error( rs, LDAP_OTHER,
1350                                 "encoding description error" );
1351                         rc = rs->sr_err;
1352                         goto error_return;
1353                 }
1354
1355                 if ( ! attrsonly ) {
1356                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1357                                 if ( ! access_allowed( op, rs->sr_entry,
1358                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1359                                 {
1360                                         Debug( LDAP_DEBUG_ACL,
1361                                                 "send_search_entry: conn %lu "
1362                                                 "access to %s, value %d not allowed\n",
1363                                                 op->o_connid, desc->ad_cname.bv_val, i );
1364
1365                                         continue;
1366                                 }
1367
1368                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1369                                         continue;
1370                                 }
1371
1372                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -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,
1379                                                 "encoding values error" );
1380                                         rc = rs->sr_err;
1381                                         goto error_return;
1382                                 }
1383                         }
1384                 }
1385
1386                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1387                         Debug( LDAP_DEBUG_ANY,
1388                                 "send_search_entry: conn %lu  ber_printf failed\n",
1389                                 op->o_connid, 0, 0 );
1390
1391                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1392                         set_ldap_error( rs, LDAP_OTHER, "encode end error" );
1393                         rc = rs->sr_err;
1394                         goto error_return;
1395                 }
1396         }
1397
1398         /* free e_flags */
1399         if ( e_flags ) {
1400                 slap_sl_free( e_flags, op->o_tmpmemctx );
1401                 e_flags = NULL;
1402         }
1403
1404         rc = ber_printf( ber, /*{{*/ "}N}" );
1405
1406         if( rc != -1 ) {
1407                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1408         }
1409
1410         if( rc != -1 ) {
1411 #ifdef LDAP_CONNECTIONLESS
1412                 if( op->o_conn && op->o_conn->c_is_udp ) {
1413                         if ( op->o_protocol != LDAP_VERSION2 ) {
1414                                 rc = ber_printf( ber, /*{*/ "N}" );
1415                         }
1416                 } else
1417 #endif
1418                 if ( op->o_res_ber == NULL ) {
1419                         rc = ber_printf( ber, /*{*/ "N}" );
1420                 }
1421         }
1422
1423         if ( rc == -1 ) {
1424                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1425
1426                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1427                 set_ldap_error( rs, LDAP_OTHER, "encode entry end error" );
1428                 rc = rs->sr_err;
1429                 goto error_return;
1430         }
1431
1432         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1433             op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
1434
1435         rs_flush_entry( op, rs, NULL );
1436
1437         if ( op->o_res_ber == NULL ) {
1438                 bytes = send_ldap_ber( op, ber );
1439                 ber_free_buf( ber );
1440
1441                 if ( bytes < 0 ) {
1442                         Debug( LDAP_DEBUG_ANY,
1443                                 "send_search_entry: conn %lu  ber write failed.\n",
1444                                 op->o_connid, 0, 0 );
1445
1446                         rc = LDAP_UNAVAILABLE;
1447                         goto error_return;
1448                 }
1449                 rs->sr_nentries++;
1450
1451                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1452                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1453                 ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
1454                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1455                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1456         }
1457
1458         Debug( LDAP_DEBUG_TRACE,
1459                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1460
1461         rc = LDAP_SUCCESS;
1462
1463 error_return:;
1464         if ( op->o_callback ) {
1465                 (void)slap_cleanup_play( op, rs );
1466         }
1467
1468         if ( e_flags ) {
1469                 slap_sl_free( e_flags, op->o_tmpmemctx );
1470         }
1471
1472         /* FIXME: Can break if rs now contains an extended response */
1473         if ( rs->sr_operational_attrs ) {
1474                 attrs_free( rs->sr_operational_attrs );
1475                 rs->sr_operational_attrs = NULL;
1476         }
1477         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1478
1479         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
1480                 rs_flush_entry( op, rs, NULL );
1481         } else {
1482                 RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 );
1483         }
1484
1485         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1486                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1487                 if ( rs->sr_ctrls ) {
1488                         slap_free_ctrls( op, rs->sr_ctrls );
1489                         rs->sr_ctrls = NULL;
1490                 }
1491         }
1492
1493         return( rc );
1494 }
1495
1496 int
1497 slap_send_search_reference( Operation *op, SlapReply *rs )
1498 {
1499         BerElementBuffer berbuf;
1500         BerElement      *ber = (BerElement *) &berbuf;
1501         int rc = 0;
1502         int bytes;
1503         char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
1504
1505         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1506         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1507
1508         rs->sr_type = REP_SEARCHREF;
1509         if ( op->o_callback ) {
1510                 rc = slap_response_play( op, rs );
1511                 if ( rc != SLAP_CB_CONTINUE ) {
1512                         goto rel;
1513                 }
1514         }
1515
1516         Debug( LDAP_DEBUG_TRACE,
1517                 "=> send_search_reference: dn=\"%s\"\n",
1518                 edn, 0, 0 );
1519
1520         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1521                 ad_entry, NULL, ACL_READ, NULL ) )
1522         {
1523                 Debug( LDAP_DEBUG_ACL,
1524                         "send_search_reference: access to entry not allowed\n",
1525                     0, 0, 0 );
1526                 rc = 1;
1527                 goto rel;
1528         }
1529
1530         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1531                 ad_ref, NULL, ACL_READ, NULL ) )
1532         {
1533                 Debug( LDAP_DEBUG_ACL,
1534                         "send_search_reference: access "
1535                         "to reference not allowed\n",
1536                     0, 0, 0 );
1537                 rc = 1;
1538                 goto rel;
1539         }
1540
1541         if( op->o_domain_scope ) {
1542                 Debug( LDAP_DEBUG_ANY,
1543                         "send_search_reference: domainScope control in (%s)\n",
1544                         edn, 0, 0 );
1545                 rc = 0;
1546                 goto rel;
1547         }
1548
1549         if( rs->sr_ref == NULL ) {
1550                 Debug( LDAP_DEBUG_ANY,
1551                         "send_search_reference: null ref in (%s)\n",
1552                         edn, 0, 0 );
1553                 rc = 1;
1554                 goto rel;
1555         }
1556
1557         if( op->o_protocol < LDAP_VERSION3 ) {
1558                 rc = 0;
1559                 /* save the references for the result */
1560                 if( rs->sr_ref[0].bv_val != NULL ) {
1561                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1562                                 rc = LDAP_OTHER;
1563                 }
1564                 goto rel;
1565         }
1566
1567 #ifdef LDAP_CONNECTIONLESS
1568         if( op->o_conn && op->o_conn->c_is_udp ) {
1569                 ber = op->o_res_ber;
1570         } else
1571 #endif
1572         {
1573                 ber_init_w_nullc( ber, LBER_USE_DER );
1574                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1575         }
1576
1577         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1578                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1579
1580         if( rc != -1 ) {
1581                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1582         }
1583
1584         if( rc != -1 ) {
1585                 rc = ber_printf( ber, /*"{"*/ "N}" );
1586         }
1587
1588         if ( rc == -1 ) {
1589                 Debug( LDAP_DEBUG_ANY,
1590                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1591
1592 #ifdef LDAP_CONNECTIONLESS
1593                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1594 #endif
1595                 ber_free_buf( ber );
1596                 set_ldap_error( rs, LDAP_OTHER, "encode DN error" );
1597                 goto rel;
1598         }
1599
1600         rc = 0;
1601         rs_flush_entry( op, rs, NULL );
1602
1603 #ifdef LDAP_CONNECTIONLESS
1604         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1605 #endif
1606         bytes = send_ldap_ber( op, ber );
1607         ber_free_buf( ber );
1608
1609         if ( bytes < 0 ) {
1610                 rc = LDAP_UNAVAILABLE;
1611         } else {
1612                 ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
1613                 ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
1614                 ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
1615                 ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
1616                 ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
1617         }
1618 #ifdef LDAP_CONNECTIONLESS
1619         }
1620 #endif
1621         if ( rs->sr_ref != NULL ) {
1622                 int     r;
1623
1624                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1625                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1626                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1627                                 0, 0 );
1628                 }
1629
1630         } else {
1631                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1632                         op->o_log_prefix, 0, 0, 0, 0 );
1633         }
1634
1635         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1636
1637         if ( 0 ) {
1638 rel:
1639             rs_flush_entry( op, rs, NULL );
1640         }
1641
1642         if ( op->o_callback ) {
1643                 (void)slap_cleanup_play( op, rs );
1644         }
1645
1646         if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
1647                 rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
1648                 if ( rs->sr_ctrls ) {
1649                         slap_free_ctrls( op, rs->sr_ctrls );
1650                         rs->sr_ctrls = NULL;
1651                 }
1652         }
1653
1654         return rc;
1655 }
1656
1657 int
1658 str2result(
1659     char        *s,
1660     int         *code,
1661     char        **matched,
1662     char        **info )
1663 {
1664         int     rc;
1665         char    *c;
1666
1667         *code = LDAP_SUCCESS;
1668         *matched = NULL;
1669         *info = NULL;
1670
1671         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1672                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1673                     s, 0, 0 );
1674
1675                 return( -1 );
1676         }
1677
1678         rc = 0;
1679         while ( (s = strchr( s, '\n' )) != NULL ) {
1680                 *s++ = '\0';
1681                 if ( *s == '\0' ) {
1682                         break;
1683                 }
1684                 if ( (c = strchr( s, ':' )) != NULL ) {
1685                         c++;
1686                 }
1687
1688                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1689                         char    *next = NULL;
1690                         long    retcode;
1691
1692                         if ( c == NULL ) {
1693                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1694                                     s, 0, 0 );
1695                                 rc = -1;
1696                                 continue;
1697                         }
1698
1699                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1700                         if ( c[ 0 ] == '\0' ) {
1701                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1702                                     s, 0, 0 );
1703                                 rc = -1;
1704                                 continue;
1705                         }
1706
1707                         retcode = strtol( c, &next, 10 );
1708                         if ( next == NULL || next == c ) {
1709                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1710                                     s, 0, 0 );
1711                                 rc = -1;
1712                                 continue;
1713                         }
1714
1715                         while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' )
1716                                 next++;
1717                         if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) {
1718                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1719                                     s, 0, 0 );
1720                                 rc = -1;
1721                                 continue;
1722                         }
1723
1724                         /* FIXME: what if it's larger than max int? */
1725                         *code = (int)retcode;
1726
1727                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1728                         if ( c != NULL ) {
1729                                 *matched = c;
1730                         }
1731                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1732                         if ( c != NULL ) {
1733                                 *info = c;
1734                         }
1735                 } else {
1736                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1737                             s, 0, 0 );
1738
1739                         rc = -1;
1740                 }
1741         }
1742
1743         return( rc );
1744 }
1745
1746 int slap_read_controls(
1747         Operation *op,
1748         SlapReply *rs,
1749         Entry *e,
1750         const struct berval *oid,
1751         LDAPControl **ctrl )
1752 {
1753         int rc;
1754         struct berval bv;
1755         BerElementBuffer berbuf;
1756         BerElement *ber = (BerElement *) &berbuf;
1757         LDAPControl c;
1758         Operation myop;
1759
1760         Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
1761                 op->o_log_prefix, oid->bv_val, e->e_dn );
1762
1763         rs->sr_entry = e;
1764         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1765                 op->o_preread_attrs : op->o_postread_attrs;
1766
1767         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1768         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1769
1770         ber_init2( ber, &bv, LBER_USE_DER );
1771         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1772
1773         /* create new operation */
1774         myop = *op;
1775         /* FIXME: o_bd needed for ACL */
1776         myop.o_bd = op->o_bd;
1777         myop.o_res_ber = ber;
1778         myop.o_callback = NULL;
1779         myop.ors_slimit = 1;
1780         myop.ors_attrsonly = 0;
1781
1782         rc = slap_send_search_entry( &myop, rs );
1783         if( rc ) return rc;
1784
1785         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1786
1787         if( rc == -1 ) return LDAP_OTHER;
1788
1789         c.ldctl_oid = oid->bv_val;
1790         c.ldctl_iscritical = 0;
1791
1792         if ( *ctrl == NULL ) {
1793                 /* first try */
1794                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1795         } else {
1796                 /* retry: free previous try */
1797                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1798         }
1799
1800         **ctrl = c;
1801         return LDAP_SUCCESS;
1802 }
1803
1804 /* Map API errors to protocol errors... */
1805 int
1806 slap_map_api2result( SlapReply *rs )
1807 {
1808         switch(rs->sr_err) {
1809         case LDAP_SERVER_DOWN:
1810                 return LDAP_UNAVAILABLE;
1811         case LDAP_LOCAL_ERROR:
1812                 return LDAP_OTHER;
1813         case LDAP_ENCODING_ERROR:
1814         case LDAP_DECODING_ERROR:
1815                 return LDAP_PROTOCOL_ERROR;
1816         case LDAP_TIMEOUT:
1817                 return LDAP_UNAVAILABLE;
1818         case LDAP_AUTH_UNKNOWN:
1819                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1820         case LDAP_FILTER_ERROR:
1821                 rs->sr_text = "Filter error";
1822                 return LDAP_OTHER;
1823         case LDAP_USER_CANCELLED:
1824                 rs->sr_text = "User cancelled";
1825                 return LDAP_OTHER;
1826         case LDAP_PARAM_ERROR:
1827                 return LDAP_PROTOCOL_ERROR;
1828         case LDAP_NO_MEMORY:
1829                 return LDAP_OTHER;
1830         case LDAP_CONNECT_ERROR:
1831                 return LDAP_UNAVAILABLE;
1832         case LDAP_NOT_SUPPORTED:
1833                 return LDAP_UNWILLING_TO_PERFORM;
1834         case LDAP_CONTROL_NOT_FOUND:
1835                 return LDAP_PROTOCOL_ERROR;
1836         case LDAP_NO_RESULTS_RETURNED:
1837                 return LDAP_NO_SUCH_OBJECT;
1838         case LDAP_MORE_RESULTS_TO_RETURN:
1839                 rs->sr_text = "More results to return";
1840                 return LDAP_OTHER;
1841         case LDAP_CLIENT_LOOP:
1842         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1843                 return LDAP_LOOP_DETECT;
1844         default:
1845                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1846                 return rs->sr_err;
1847         }
1848 }
1849
1850
1851 slap_mask_t
1852 slap_attr_flags( AttributeName *an )
1853 {
1854         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1855
1856         if ( an == NULL ) {
1857                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1858
1859         } else {
1860                 flags |= an_find( an, slap_bv_all_operational_attrs )
1861                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1862                 flags |= an_find( an, slap_bv_all_user_attrs )
1863                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1864         }
1865
1866         return flags;
1867 }