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 1998-2007 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 static long send_ldap_ber(
 136         Connection *conn,
 137         BerElement *ber )
 138 {
 139         ber_len_t bytes;
 140
 141         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 142
 143         /* write only one pdu at a time - wait til it's our turn */
 144         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 145
 146         /* lock the connection */
 147         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 148
 149         /* write the pdu */
 150         while( 1 ) {
 151                 int err;
 152                 ber_socket_t    sd;
 153
 154                 if ( connection_state_closing( conn ) ) {
 155                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 156                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 157
 158                         return 0;
 159                 }
 160
 161                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 162                         break;
 163                 }
 164
 165                 err = sock_errno();
 166
 167                 /*
 168                  * we got an error.  if it's ewouldblock, we need to
 169                  * wait on the socket being writable.  otherwise, figure
 170                  * it's a hard error and return.
 171                  */
 172
 173                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 174                     err, sock_errstr(err), 0 );
 175
 176                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 177                         connection_closing( conn, "connection lost on write" );
 178
 179                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 180                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 181
 182                         return( -1 );
 183                 }
 184
 185                 /* wait for socket to be write-ready */
 186                 conn->c_writewaiter = 1;
 187                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 188                 slapd_set_write( sd, 1 );
 189
 190                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 191                 conn->c_writewaiter = 0;
 192         }
 193
 194         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 195         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 196
 197         return bytes;
 198 }
 199
 200 static int
 201 send_ldap_control( BerElement *ber, LDAPControl *c )
 202 {
 203         int rc;
 204
 205         assert( c != NULL );
 206
 207         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 208
 209         if( c->ldctl_iscritical ) {
 210                 rc = ber_printf( ber, "b",
 211                         (ber_int_t) c->ldctl_iscritical ) ;
 212                 if( rc == -1 ) return rc;
 213         }
 214
 215         if( c->ldctl_value.bv_val != NULL ) {
 216                 rc = ber_printf( ber, "O", &c->ldctl_value );
 217                 if( rc == -1 ) return rc;
 218         }
 219
 220         rc = ber_printf( ber, /*{*/"N}" );
 221         if( rc == -1 ) return rc;
 222
 223         return 0;
 224 }
 225
 226 static int
 227 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 228 {
 229         int rc;
 230
 231         if( c == NULL )
 232                 return 0;
 233
 234         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 235         if( rc == -1 ) return rc;
 236
 237         for( ; *c != NULL; c++) {
 238                 rc = send_ldap_control( ber, *c );
 239                 if( rc == -1 ) return rc;
 240         }
 241
 242 #ifdef SLAP_SORTED_RESULTS
 243         /* this is a hack to avoid having to modify op->s_ctrls */
 244         if( o->o_sortedresults ) {
 245                 BerElementBuffer berbuf;
 246                 BerElement *sber = (BerElement *) &berbuf;
 247                 LDAPControl sorted;
 248                 BER_BVZERO( &sorted.ldctl_value );
 249                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 250                 sorted.ldctl_iscritical = 0;
 251
 252                 ber_init2( sber, NULL, LBER_USE_DER );
 253
 254                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 255
 256                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 257                         return -1;
 258                 }
 259
 260                 (void) ber_free_buf( ber );
 261
 262                 rc = send_ldap_control( ber, &sorted );
 263                 if( rc == -1 ) return rc;
 264         }
 265 #endif
 266
 267         rc = ber_printf( ber, /*{*/"N}" );
 268
 269         return rc;
 270 }
 271
 272 /*
 273  * slap_response_play()
 274  *
 275  * plays the callback list; rationale: a callback can
 276  *   - remove itself from the list, by setting op->o_callback = NULL;
 277  *     malloc()'ed callbacks should free themselves from inside the
 278  *     sc_response() function.
 279  *   - replace itself with another (list of) callback(s), by setting
 280  *     op->o_callback = a new (list of) callback(s); in this case, it
 281  *     is the callback's responsibility to to append existing subsequent
 282  *     callbacks to the end of the list that is passed to the sc_response()
 283  *     function.
 284  *   - modify the list of subsequent callbacks by modifying the value
 285  *     of the sc_next field from inside the sc_response() function; this
 286  *     case does not require any handling from inside slap_response_play()
 287  *
 288  * To stop execution of the playlist, the sc_response() function must return
 289  * a value different from SLAP_SC_CONTINUE.
 290  *
 291  * The same applies to slap_cleanup_play(); only, there is no means to stop
 292  * execution of the playlist, since all cleanup functions must be called.
 293  */
 294 static int
 295 slap_response_play(
 296         Operation *op,
 297         SlapReply *rs )
 298 {
 299         int rc;
 300
 301         slap_callback   *sc = op->o_callback, **scp;
 302
 303         rc = SLAP_CB_CONTINUE;
 304         for ( scp = &sc; *scp; ) {
 305                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 306
 307                 op->o_callback = *scp;
 308                 if ( op->o_callback->sc_response ) {
 309                         rc = op->o_callback->sc_response( op, rs );
 310                         if ( op->o_callback == NULL ) {
 311                                 /* the callback has been removed;
 312                                  * repair the list */
 313                                 *scp = sc_next;
 314                                 sc_nextp = scp;
 315
 316                         } else if ( op->o_callback != *scp ) {
 317                                 /* a new callback has been inserted
 318                                  * in place of the existing one; repair the list */
 319                                 *scp = op->o_callback;
 320                                 sc_nextp = scp;
 321                         }
 322                         if ( rc != SLAP_CB_CONTINUE ) break;
 323                 }
 324                 scp = sc_nextp;
 325         }
 326
 327         op->o_callback = sc;
 328         return rc;
 329 }
 330
 331 static int
 332 slap_cleanup_play(
 333         Operation *op,
 334         SlapReply *rs )
 335 {
 336         slap_callback   *sc = op->o_callback, **scp;
 337
 338         for ( scp = &sc; *scp; ) {
 339                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 340
 341                 op->o_callback = *scp;
 342                 if ( op->o_callback->sc_cleanup ) {
 343                         (void)op->o_callback->sc_cleanup( op, rs );
 344                         if ( op->o_callback == NULL ) {
 345                                 /* the callback has been removed;
 346                                  * repair the list */
 347                                 *scp = sc_next;
 348                                 sc_nextp = scp;
 349
 350                         } else if ( op->o_callback != *scp ) {
 351                                 /* a new callback has been inserted
 352                                  * after the existing one; repair the list */
 353                                 /* a new callback has been inserted
 354                                  * in place of the existing one; repair the list */
 355                                 *scp = op->o_callback;
 356                                 sc_nextp = scp;
 357                         }
 358                         /* don't care about the result; do all cleanup */
 359                 }
 360                 scp = sc_nextp;
 361         }
 362
 363         op->o_callback = sc;
 364         return LDAP_SUCCESS;
 365 }
 366
 367 static int
 368 send_ldap_response(
 369         Operation *op,
 370         SlapReply *rs )
 371 {
 372         BerElementBuffer berbuf;
 373         BerElement      *ber = (BerElement *) &berbuf;
 374         int             rc = LDAP_SUCCESS;
 375         long    bytes;
 376
 377         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 378                 rc = SLAPD_ABANDON;
 379                 goto clean2;
 380         }
 381
 382         if ( op->o_callback ) {
 383                 rc = slap_response_play( op, rs );
 384                 if ( rc != SLAP_CB_CONTINUE ) {
 385                         goto clean2;
 386                 }
 387         }
 388
 389 #ifdef LDAP_CONNECTIONLESS
 390         if (op->o_conn && op->o_conn->c_is_udp)
 391                 ber = op->o_res_ber;
 392         else
 393 #endif
 394         {
 395                 ber_init_w_nullc( ber, LBER_USE_DER );
 396                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 397         }
 398
 399         Debug( LDAP_DEBUG_TRACE,
 400                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 401                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 402
 403         if( rs->sr_ref ) {
 404                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 405                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 406                         NULL, NULL );
 407         }
 408
 409 #ifdef LDAP_CONNECTIONLESS
 410         if (op->o_conn && op->o_conn->c_is_udp &&
 411                 op->o_protocol == LDAP_VERSION2 )
 412         {
 413                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 414                         rs->sr_tag, rs->sr_err,
 415                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 416                 rs->sr_text == NULL ? "" : rs->sr_text );
 417         } else
 418 #endif
 419         if ( rs->sr_type == REP_INTERMEDIATE ) {
 420             rc = ber_printf( ber, "{it{" /*"}}"*/,
 421                         rs->sr_msgid, rs->sr_tag );
 422
 423         } else {
 424             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 425                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 426                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 427                 rs->sr_text == NULL ? "" : rs->sr_text );
 428         }
 429
 430         if( rc != -1 ) {
 431                 if ( rs->sr_ref != NULL ) {
 432                         assert( rs->sr_err == LDAP_REFERRAL );
 433                         rc = ber_printf( ber, "t{W}",
 434                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 435                 } else {
 436                         assert( rs->sr_err != LDAP_REFERRAL );
 437                 }
 438         }
 439
 440         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 441                 rc = ber_printf( ber, "tO",
 442                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 443         }
 444
 445         if( rc != -1 &&
 446                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 447         {
 448                 if ( rs->sr_rspoid != NULL ) {
 449                         rc = ber_printf( ber, "ts",
 450                                 rs->sr_type == REP_EXTENDED
 451                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 452                                 rs->sr_rspoid );
 453                 }
 454                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 455                         rc = ber_printf( ber, "tO",
 456                                 rs->sr_type == REP_EXTENDED
 457                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 458                                 rs->sr_rspdata );
 459                 }
 460         }
 461
 462         if( rc != -1 ) {
 463                 rc = ber_printf( ber, /*"{"*/ "N}" );
 464         }
 465
 466         if( rc != -1 ) {
 467                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 468         }
 469
 470         if( rc != -1 ) {
 471                 rc = ber_printf( ber, /*"{"*/ "N}" );
 472         }
 473
 474 #ifdef LDAP_CONNECTIONLESS
 475         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 476                 && rc != -1 )
 477         {
 478                 rc = ber_printf( ber, /*"{"*/ "N}" );
 479         }
 480 #endif
 481
 482         if ( rc == -1 ) {
 483                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 484
 485 #ifdef LDAP_CONNECTIONLESS
 486                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 487 #endif
 488                 {
 489                         ber_free_buf( ber );
 490                 }
 491                 goto cleanup;
 492         }
 493
 494         /* send BER */
 495         bytes = send_ldap_ber( op->o_conn, ber );
 496 #ifdef LDAP_CONNECTIONLESS
 497         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 498 #endif
 499         {
 500                 ber_free_buf( ber );
 501         }
 502
 503         if ( bytes < 0 ) {
 504                 Debug( LDAP_DEBUG_ANY,
 505                         "send_ldap_response: ber write failed\n",
 506                         0, 0, 0 );
 507
 508                 goto cleanup;
 509         }
 510
 511         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 512         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 513         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 514         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 515
 516 cleanup:;
 517         /* Tell caller that we did this for real, as opposed to being
 518          * overridden by a callback
 519          */
 520         rc = SLAP_CB_CONTINUE;
 521
 522 clean2:;
 523         if ( op->o_callback ) {
 524                 (void)slap_cleanup_play( op, rs );
 525         }
 526
 527         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 528                 free( (char *)rs->sr_matched );
 529                 rs->sr_matched = NULL;
 530         }
 531
 532         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 533                 ber_bvarray_free( rs->sr_ref );
 534                 rs->sr_ref = NULL;
 535         }
 536
 537         return rc;
 538 }
 539
 540
 541 void
 542 send_ldap_disconnect( Operation *op, SlapReply *rs )
 543 {
 544 #define LDAP_UNSOLICITED_ERROR(e) \
 545         (  (e) == LDAP_PROTOCOL_ERROR \
 546         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 547         || (e) == LDAP_UNAVAILABLE )
 548
 549         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 550
 551         rs->sr_type = REP_EXTENDED;
 552
 553         Debug( LDAP_DEBUG_TRACE,
 554                 "send_ldap_disconnect %d:%s\n",
 555                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 556
 557         if ( op->o_protocol < LDAP_VERSION3 ) {
 558                 rs->sr_rspoid = NULL;
 559                 rs->sr_tag = slap_req2res( op->o_tag );
 560                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 561
 562         } else {
 563                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 564                 rs->sr_tag = LDAP_RES_EXTENDED;
 565                 rs->sr_msgid = 0;
 566         }
 567
 568         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 569                 Statslog( LDAP_DEBUG_STATS,
 570                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 571                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 572                         rs->sr_text ? rs->sr_text : "", 0 );
 573         }
 574 }
 575
 576 void
 577 slap_send_ldap_result( Operation *op, SlapReply *rs )
 578 {
 579         char *tmp = NULL;
 580         const char *otext = rs->sr_text;
 581         BerVarray oref = rs->sr_ref;
 582
 583         rs->sr_type = REP_RESULT;
 584
 585         /* Propagate Abandons so that cleanup callbacks can be processed */
 586         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 587                 goto abandon;
 588
 589         assert( !LDAP_API_ERROR( rs->sr_err ) );
 590
 591         Debug( LDAP_DEBUG_TRACE,
 592                 "send_ldap_result: %s p=%d\n",
 593                 op->o_log_prefix, op->o_protocol, 0 );
 594
 595         Debug( LDAP_DEBUG_ARGS,
 596                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 597                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 598                 rs->sr_text ? rs->sr_text : "" );
 599
 600
 601         if( rs->sr_ref ) {
 602                 Debug( LDAP_DEBUG_ARGS,
 603                         "send_ldap_result: referral=\"%s\"\n",
 604                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 605                         NULL, NULL );
 606         }
 607
 608         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 609
 610         if ( rs->sr_err == LDAP_REFERRAL ) {
 611                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 612
 613                 if( rs->sr_ref == NULL ) {
 614                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 615                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 616                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 617                 }
 618         }
 619
 620         if ( op->o_protocol < LDAP_VERSION3 ) {
 621                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 622                 rs->sr_text = tmp;
 623                 rs->sr_ref = NULL;
 624         }
 625
 626         rs->sr_tag = slap_req2res( op->o_tag );
 627         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 628
 629 abandon:
 630         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 631                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 632                         char nbuf[64];
 633                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 634                                 rs->sr_err, rs->sr_nentries );
 635
 636                         Statslog( LDAP_DEBUG_STATS,
 637                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 638                                 op->o_log_prefix, rs->sr_tag, nbuf,
 639                                 rs->sr_text ? rs->sr_text : "", 0 );
 640                 } else {
 641                         Statslog( LDAP_DEBUG_STATS,
 642                                 "%s RESULT tag=%lu err=%d text=%s\n",
 643                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 644                                 rs->sr_text ? rs->sr_text : "", 0 );
 645                 }
 646         }
 647
 648         if( tmp != NULL ) ch_free(tmp);
 649         rs->sr_text = otext;
 650         rs->sr_ref = oref;
 651 }
 652
 653 void
 654 send_ldap_sasl( Operation *op, SlapReply *rs )
 655 {
 656         rs->sr_type = REP_SASL;
 657         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 658                 rs->sr_err,
 659                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 660
 661         rs->sr_tag = slap_req2res( op->o_tag );
 662         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 663
 664         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 665                 Statslog( LDAP_DEBUG_STATS,
 666                         "%s RESULT tag=%lu err=%d text=%s\n",
 667                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 668                         rs->sr_text ? rs->sr_text : "", 0 );
 669         }
 670 }
 671
 672 void
 673 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 674 {
 675         rs->sr_type = REP_EXTENDED;
 676
 677         Debug( LDAP_DEBUG_TRACE,
 678                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 679                 rs->sr_err,
 680                 rs->sr_rspoid ? rs->sr_rspoid : "",
 681                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 682
 683         rs->sr_tag = slap_req2res( op->o_tag );
 684         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 685
 686         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 687                 Statslog( LDAP_DEBUG_STATS,
 688                         "%s RESULT oid=%s err=%d text=%s\n",
 689                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 690                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 691         }
 692 }
 693
 694 void
 695 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 696 {
 697         rs->sr_type = REP_INTERMEDIATE;
 698         Debug( LDAP_DEBUG_TRACE,
 699                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 700                 rs->sr_err,
 701                 rs->sr_rspoid ? rs->sr_rspoid : "",
 702                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 703         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 704         rs->sr_msgid = op->o_msgid;
 705         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 706                 Statslog( LDAP_DEBUG_STATS2,
 707                         "%s INTERM oid=%s\n",
 708                         op->o_log_prefix,
 709                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 710         }
 711 }
 712
 713 /*
 714  * returns:
 715  *
 716  * LDAP_SUCCESS                 entry sent
 717  * LDAP_OTHER                   entry not sent (other)
 718  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 719  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 720  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 721  */
 722
 723 int
 724 slap_send_search_entry( Operation *op, SlapReply *rs )
 725 {
 726         BerElementBuffer berbuf;
 727         BerElement      *ber = (BerElement *) &berbuf;
 728         Attribute       *a;
 729         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 730         char            *edn;
 731         int             userattrs;
 732         AccessControlState acl_state = ACL_STATE_INIT;
 733         int                      attrsonly;
 734         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 735
 736         /* a_flags: array of flags telling if the i-th element will be
 737          *          returned or filtered out
 738          * e_flags: array of a_flags
 739          */
 740         char **e_flags = NULL;
 741
 742         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 743                 return LDAP_SIZELIMIT_EXCEEDED;
 744         }
 745
 746         rs->sr_type = REP_SEARCH;
 747
 748         /* eventually will loop through generated operational attribute types
 749          * currently implemented types include:
 750          *      entryDN, subschemaSubentry, and hasSubordinates */
 751         /* NOTE: moved before overlays callback circling because
 752          * they may modify entry and other stuff in rs */
 753         /* check for special all operational attributes ("+") type */
 754         /* FIXME: maybe we could set this flag at the operation level;
 755          * however, in principle the caller of send_search_entry() may
 756          * change the attribute list at each call */
 757         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 758
 759         rc = backend_operational( op, rs );
 760         if ( rc ) {
 761                 goto error_return;
 762         }
 763
 764         if ( op->o_callback ) {
 765                 rc = slap_response_play( op, rs );
 766                 if ( rc != SLAP_CB_CONTINUE ) {
 767                         goto error_return;
 768                 }
 769         }
 770
 771         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 772                 op->o_connid, rs->sr_entry->e_name.bv_val,
 773                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 774
 775         attrsonly = op->ors_attrsonly;
 776
 777         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 778                 Debug( LDAP_DEBUG_ACL,
 779                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 780                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 781
 782                 rc = LDAP_INSUFFICIENT_ACCESS;
 783                 goto error_return;
 784         }
 785
 786         edn = rs->sr_entry->e_nname.bv_val;
 787
 788         if ( op->o_res_ber ) {
 789                 /* read back control or LDAP_CONNECTIONLESS */
 790             ber = op->o_res_ber;
 791         } else {
 792                 struct berval   bv;
 793
 794                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 795                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 796
 797                 ber_init2( ber, &bv, LBER_USE_DER );
 798                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 799         }
 800
 801 #ifdef LDAP_CONNECTIONLESS
 802         if ( op->o_conn && op->o_conn->c_is_udp ) {
 803                 /* CONNECTIONLESS */
 804                 if ( op->o_protocol == LDAP_VERSION2 ) {
 805                 rc = ber_printf(ber, "t{O{" /*}}*/,
 806                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 807                 } else {
 808                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 809                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 810                 }
 811         } else
 812 #endif
 813         if ( op->o_res_ber ) {
 814                 /* read back control */
 815             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 816         } else {
 817             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 818                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 819         }
 820
 821         if ( rc == -1 ) {
 822                 Debug( LDAP_DEBUG_ANY,
 823                         "send_search_entry: conn %lu  ber_printf failed\n",
 824                         op->o_connid, 0, 0 );
 825
 826                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 827                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 828                 rc = rs->sr_err;
 829                 goto error_return;
 830         }
 831
 832         /* check for special all user attributes ("*") type */
 833         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 834
 835         /* create an array of arrays of flags. Each flag corresponds
 836          * to particular value of attribute and equals 1 if value matches
 837          * to ValuesReturnFilter or 0 if not
 838          */
 839         if ( op->o_vrFilter != NULL ) {
 840                 int     k = 0;
 841                 size_t  size;
 842
 843                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 844                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 845                 }
 846
 847                 size = i * sizeof(char *) + k;
 848                 if ( size > 0 ) {
 849                         char    *a_flags;
 850                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 851                         if( e_flags == NULL ) {
 852                         Debug( LDAP_DEBUG_ANY,
 853                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 854                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 855                                 ber_free( ber, 1 );
 856
 857                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 858                                 goto error_return;
 859                         }
 860                         a_flags = (char *)(e_flags + i);
 861                         memset( a_flags, 0, k );
 862                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 863                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 864                                 e_flags[i] = a_flags;
 865                                 a_flags += j;
 866                         }
 867
 868                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 869                         if ( rc == -1 ) {
 870                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 871                                         "conn %lu matched values filtering failed\n",
 872                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 873                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 874                                 send_ldap_error( op, rs, LDAP_OTHER,
 875                                         "matched values filtering error" );
 876                                 rc = rs->sr_err;
 877                                 goto error_return;
 878                         }
 879                 }
 880         }
 881
 882         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 883                 AttributeDescription *desc = a->a_desc;
 884                 int finish = 0;
 885
 886                 if ( rs->sr_attrs == NULL ) {
 887                         /* all user attrs request, skip operational attributes */
 888                         if( is_at_operational( desc->ad_type ) ) {
 889                                 continue;
 890                         }
 891
 892                 } else {
 893                         /* specific attrs requested */
 894                         if ( is_at_operational( desc->ad_type ) ) {
 895                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 896                                         !ad_inlist( desc, rs->sr_attrs ) )
 897                                 {
 898                                         continue;
 899                                 }
 900
 901                         } else {
 902                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 903                                         continue;
 904                                 }
 905                         }
 906                 }
 907
 908                 if ( attrsonly ) {
 909                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 910                                 ACL_READ, &acl_state ) )
 911                         {
 912                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 913                                         "conn %lu access to attribute %s not allowed\n",
 914                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 915                                 continue;
 916                         }
 917
 918                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 919                                 Debug( LDAP_DEBUG_ANY,
 920                                         "send_search_entry: conn %lu  ber_printf failed\n",
 921                                         op->o_connid, 0, 0 );
 922
 923                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 924                                 send_ldap_error( op, rs, LDAP_OTHER,
 925                                         "encoding description error");
 926                                 rc = rs->sr_err;
 927                                 goto error_return;
 928                         }
 929                         finish = 1;
 930
 931                 } else {
 932                         int first = 1;
 933                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 934                                 if ( ! access_allowed( op, rs->sr_entry,
 935                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 936                                 {
 937                                         Debug( LDAP_DEBUG_ACL,
 938                                                 "send_search_entry: conn %lu "
 939                                                 "access to attribute %s, value #%d not allowed\n",
 940                                                 op->o_connid, desc->ad_cname.bv_val, i );
 941
 942                                         continue;
 943                                 }
 944
 945                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 946                                         continue;
 947                                 }
 948
 949                                 if ( first ) {
 950                                         first = 0;
 951                                         finish = 1;
 952                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 953                                                 Debug( LDAP_DEBUG_ANY,
 954                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 955                                                         op->o_connid, 0, 0 );
 956
 957                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 958                                                 send_ldap_error( op, rs, LDAP_OTHER,
 959                                                         "encoding description error");
 960                                                 rc = rs->sr_err;
 961                                                 goto error_return;
 962                                         }
 963                                 }
 964                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 965                                         Debug( LDAP_DEBUG_ANY,
 966                                                 "send_search_entry: conn %lu  "
 967                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 968
 969                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 970                                         send_ldap_error( op, rs, LDAP_OTHER,
 971                                                 "encoding values error" );
 972                                         rc = rs->sr_err;
 973                                         goto error_return;
 974                                 }
 975                         }
 976                 }
 977
 978                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 979                         Debug( LDAP_DEBUG_ANY,
 980                                 "send_search_entry: conn %lu ber_printf failed\n",
 981                                 op->o_connid, 0, 0 );
 982
 983                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 984                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 985                         rc = rs->sr_err;
 986                         goto error_return;
 987                 }
 988         }
 989
 990         /* NOTE: moved before overlays callback circling because
 991          * they may modify entry and other stuff in rs */
 992         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 993                 int     k = 0;
 994                 size_t  size;
 995
 996                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 997                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 998                 }
 999
1000                 size = i * sizeof(char *) + k;
1001                 if ( size > 0 ) {
1002                         char    *a_flags, **tmp;
1003
1004                         /*
1005                          * Reuse previous memory - we likely need less space
1006                          * for operational attributes
1007                          */
1008                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1009                                 op->o_tmpmemctx );
1010                         if ( tmp == NULL ) {
1011                                 Debug( LDAP_DEBUG_ANY,
1012                                         "send_search_entry: conn %lu "
1013                                         "not enough memory "
1014                                         "for matched values filtering\n",
1015                                         op->o_connid, 0, 0 );
1016                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1017                                 send_ldap_error( op, rs, LDAP_OTHER,
1018                                         "not enough memory for matched values filtering" );
1019                                 goto error_return;
1020                         }
1021                         e_flags = tmp;
1022                         a_flags = (char *)(e_flags + i);
1023                         memset( a_flags, 0, k );
1024                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1025                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1026                                 e_flags[i] = a_flags;
1027                                 a_flags += j;
1028                         }
1029                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1030
1031                         if ( rc == -1 ) {
1032                                 Debug( LDAP_DEBUG_ANY,
1033                                         "send_search_entry: conn %lu "
1034                                         "matched values filtering failed\n",
1035                                         op->o_connid ? op->o_connid : 0, 0, 0);
1036                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1037                                 send_ldap_error( op, rs, LDAP_OTHER,
1038                                         "matched values filtering error" );
1039                                 rc = rs->sr_err;
1040                                 goto error_return;
1041                         }
1042                 }
1043         }
1044
1045         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1046                 AttributeDescription *desc = a->a_desc;
1047
1048                 if ( rs->sr_attrs == NULL ) {
1049                         /* all user attrs request, skip operational attributes */
1050                         if( is_at_operational( desc->ad_type ) ) {
1051                                 continue;
1052                         }
1053
1054                 } else {
1055                         /* specific attrs requested */
1056                         if( is_at_operational( desc->ad_type ) ) {
1057                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1058                                         !ad_inlist( desc, rs->sr_attrs ) )
1059                                 {
1060                                         continue;
1061                                 }
1062                         } else {
1063                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1064                                         continue;
1065                                 }
1066                         }
1067                 }
1068
1069                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1070                         ACL_READ, &acl_state ) )
1071                 {
1072                         Debug( LDAP_DEBUG_ACL,
1073                                 "send_search_entry: conn %lu "
1074                                 "access to attribute %s not allowed\n",
1075                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1076
1077                         continue;
1078                 }
1079
1080                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1081                 if ( rc == -1 ) {
1082                         Debug( LDAP_DEBUG_ANY,
1083                                 "send_search_entry: conn %lu  "
1084                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1085
1086                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1087                         send_ldap_error( op, rs, LDAP_OTHER,
1088                                 "encoding description error" );
1089                         rc = rs->sr_err;
1090                         goto error_return;
1091                 }
1092
1093                 if ( ! attrsonly ) {
1094                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1095                                 if ( ! access_allowed( op, rs->sr_entry,
1096                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1097                                 {
1098                                         Debug( LDAP_DEBUG_ACL,
1099                                                 "send_search_entry: conn %lu "
1100                                                 "access to %s, value %d not allowed\n",
1101                                                 op->o_connid, desc->ad_cname.bv_val, i );
1102
1103                                         continue;
1104                                 }
1105
1106                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1107                                         continue;
1108                                 }
1109
1110                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1111                                         Debug( LDAP_DEBUG_ANY,
1112                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1113                                                 op->o_connid, 0, 0 );
1114
1115                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1116                                         send_ldap_error( op, rs, LDAP_OTHER,
1117                                                 "encoding values error" );
1118                                         rc = rs->sr_err;
1119                                         goto error_return;
1120                                 }
1121                         }
1122                 }
1123
1124                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1125                         Debug( LDAP_DEBUG_ANY,
1126                                 "send_search_entry: conn %lu  ber_printf failed\n",
1127                                 op->o_connid, 0, 0 );
1128
1129                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1130                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1131                         rc = rs->sr_err;
1132                         goto error_return;
1133                 }
1134         }
1135
1136         /* free e_flags */
1137         if ( e_flags ) {
1138                 slap_sl_free( e_flags, op->o_tmpmemctx );
1139                 e_flags = NULL;
1140         }
1141
1142         rc = ber_printf( ber, /*{{*/ "}N}" );
1143
1144         if( rc != -1 ) {
1145                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1146         }
1147
1148         if( rc != -1 ) {
1149 #ifdef LDAP_CONNECTIONLESS
1150                 if( op->o_conn && op->o_conn->c_is_udp ) {
1151                         if ( op->o_protocol != LDAP_VERSION2 ) {
1152                                 rc = ber_printf( ber, /*{*/ "N}" );
1153                         }
1154                 } else
1155 #endif
1156                 if ( op->o_res_ber == NULL ) {
1157                         rc = ber_printf( ber, /*{*/ "N}" );
1158                 }
1159         }
1160
1161         if ( rc == -1 ) {
1162                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1163
1164                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1165                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1166                 rc = rs->sr_err;
1167                 goto error_return;
1168         }
1169
1170         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1171                 be_entry_release_rw( op, rs->sr_entry, 0 );
1172                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1173                 rs->sr_entry = NULL;
1174         }
1175
1176         if ( op->o_res_ber == NULL ) {
1177                 bytes = send_ldap_ber( op->o_conn, ber );
1178                 ber_free_buf( ber );
1179
1180                 if ( bytes < 0 ) {
1181                         Debug( LDAP_DEBUG_ANY,
1182                                 "send_search_entry: conn %lu  ber write failed.\n",
1183                                 op->o_connid, 0, 0 );
1184
1185                         rc = LDAP_UNAVAILABLE;
1186                         goto error_return;
1187                 }
1188                 rs->sr_nentries++;
1189
1190                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1191                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1192                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1193                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1194                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1195         }
1196
1197         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1198             op->o_log_prefix, edn, 0, 0, 0 );
1199
1200         Debug( LDAP_DEBUG_TRACE,
1201                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1202
1203         rc = LDAP_SUCCESS;
1204
1205 error_return:;
1206         if ( op->o_callback ) {
1207                 (void)slap_cleanup_play( op, rs );
1208         }
1209
1210         if ( e_flags ) {
1211                 slap_sl_free( e_flags, op->o_tmpmemctx );
1212         }
1213
1214         if ( rs->sr_operational_attrs ) {
1215                 attrs_free( rs->sr_operational_attrs );
1216                 rs->sr_operational_attrs = NULL;
1217         }
1218         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1219
1220         /* FIXME: I think rs->sr_type should be explicitly set to
1221          * REP_SEARCH here. That's what it was when we entered this
1222          * function. send_ldap_error may have changed it, but we
1223          * should set it back so that the cleanup functions know
1224          * what they're doing.
1225          */
1226         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1227                 && rs->sr_entry
1228                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1229         {
1230                 entry_free( rs->sr_entry );
1231                 rs->sr_entry = NULL;
1232                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1233         }
1234
1235         return( rc );
1236 }
1237
1238 int
1239 slap_send_search_reference( Operation *op, SlapReply *rs )
1240 {
1241         BerElementBuffer berbuf;
1242         BerElement      *ber = (BerElement *) &berbuf;
1243         int rc = 0;
1244         int bytes;
1245
1246         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1247         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1248
1249         rs->sr_type = REP_SEARCHREF;
1250         if ( op->o_callback ) {
1251                 rc = slap_response_play( op, rs );
1252                 if ( rc != SLAP_CB_CONTINUE ) {
1253                         goto rel;
1254                 }
1255         }
1256
1257         Debug( LDAP_DEBUG_TRACE,
1258                 "=> send_search_reference: dn=\"%s\"\n",
1259                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1260
1261         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1262                 ad_entry, NULL, ACL_READ, NULL ) )
1263         {
1264                 Debug( LDAP_DEBUG_ACL,
1265                         "send_search_reference: access to entry not allowed\n",
1266                     0, 0, 0 );
1267                 rc = 1;
1268                 goto rel;
1269         }
1270
1271         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1272                 ad_ref, NULL, ACL_READ, NULL ) )
1273         {
1274                 Debug( LDAP_DEBUG_ACL,
1275                         "send_search_reference: access "
1276                         "to reference not allowed\n",
1277                     0, 0, 0 );
1278                 rc = 1;
1279                 goto rel;
1280         }
1281
1282         if( op->o_domain_scope ) {
1283                 Debug( LDAP_DEBUG_ANY,
1284                         "send_search_reference: domainScope control in (%s)\n",
1285                         rs->sr_entry->e_dn, 0, 0 );
1286                 rc = 0;
1287                 goto rel;
1288         }
1289
1290         if( rs->sr_ref == NULL ) {
1291                 Debug( LDAP_DEBUG_ANY,
1292                         "send_search_reference: null ref in (%s)\n",
1293                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1294                 rc = 1;
1295                 goto rel;
1296         }
1297
1298         if( op->o_protocol < LDAP_VERSION3 ) {
1299                 rc = 0;
1300                 /* save the references for the result */
1301                 if( rs->sr_ref[0].bv_val != NULL ) {
1302                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1303                                 rc = LDAP_OTHER;
1304                 }
1305                 goto rel;
1306         }
1307
1308 #ifdef LDAP_CONNECTIONLESS
1309         if( op->o_conn && op->o_conn->c_is_udp ) {
1310                 ber = op->o_res_ber;
1311         } else
1312 #endif
1313         {
1314                 ber_init_w_nullc( ber, LBER_USE_DER );
1315                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1316         }
1317
1318         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1319                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1320
1321         if( rc != -1 ) {
1322                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1323         }
1324
1325         if( rc != -1 ) {
1326                 rc = ber_printf( ber, /*"{"*/ "N}" );
1327         }
1328
1329         if ( rc == -1 ) {
1330                 Debug( LDAP_DEBUG_ANY,
1331                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1332
1333 #ifdef LDAP_CONNECTIONLESS
1334                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1335 #endif
1336                 ber_free_buf( ber );
1337                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1338                 goto rel;
1339         }
1340
1341         rc = 0;
1342         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1343                 be_entry_release_rw( op, rs->sr_entry, 0 );
1344                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1345                 rs->sr_entry = NULL;
1346         }
1347
1348 #ifdef LDAP_CONNECTIONLESS
1349         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1350 #endif
1351         bytes = send_ldap_ber( op->o_conn, ber );
1352         ber_free_buf( ber );
1353
1354         if ( bytes < 0 ) {
1355                 rc = LDAP_UNAVAILABLE;
1356         } else {
1357                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1358                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1359                 ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1360                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1361                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1362         }
1363 #ifdef LDAP_CONNECTIONLESS
1364         }
1365 #endif
1366         if ( rs->sr_ref != NULL ) {
1367                 int     r;
1368
1369                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1370                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1371                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1372                                 0, 0 );
1373                 }
1374
1375         } else {
1376                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1377                         op->o_log_prefix, 0, 0, 0, 0 );
1378         }
1379
1380         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1381
1382 rel:
1383         if ( op->o_callback ) {
1384                 (void)slap_cleanup_play( op, rs );
1385         }
1386
1387         return rc;
1388 }
1389
1390 int
1391 str2result(
1392     char        *s,
1393     int         *code,
1394     char        **matched,
1395     char        **info )
1396 {
1397         int     rc;
1398         char    *c;
1399
1400         *code = LDAP_SUCCESS;
1401         *matched = NULL;
1402         *info = NULL;
1403
1404         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1405                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1406                     s, 0, 0 );
1407
1408                 return( -1 );
1409         }
1410
1411         rc = 0;
1412         while ( (s = strchr( s, '\n' )) != NULL ) {
1413                 *s++ = '\0';
1414                 if ( *s == '\0' ) {
1415                         break;
1416                 }
1417                 if ( (c = strchr( s, ':' )) != NULL ) {
1418                         c++;
1419                 }
1420
1421                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1422                         char    *next = NULL;
1423                         long    retcode;
1424
1425                         if ( c == NULL ) {
1426                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1427                                     s, 0, 0 );
1428                                 rc = -1;
1429                                 continue;
1430                         }
1431
1432                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1433                         if ( c[ 0 ] == '\0' ) {
1434                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1435                                     s, 0, 0 );
1436                                 rc = -1;
1437                                 continue;
1438                         }
1439
1440                         retcode = strtol( c, &next, 10 );
1441                         if ( next == NULL || next == c ) {
1442                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1443                                     s, 0, 0 );
1444                                 rc = -1;
1445                                 continue;
1446                         }
1447
1448                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1449                         if ( next[ 0 ] != '\0' ) {
1450                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1451                                     s, 0, 0 );
1452                                 rc = -1;
1453                                 continue;
1454                         }
1455
1456                         /* FIXME: what if it's larger that max int? */
1457                         *code = (int)retcode;
1458
1459                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1460                         if ( c != NULL ) {
1461                                 *matched = c;
1462                         }
1463                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1464                         if ( c != NULL ) {
1465                                 *info = c;
1466                         }
1467                 } else {
1468                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1469                             s, 0, 0 );
1470
1471                         rc = -1;
1472                 }
1473         }
1474
1475         return( rc );
1476 }
1477
1478 int slap_read_controls(
1479         Operation *op,
1480         SlapReply *rs,
1481         Entry *e,
1482         const struct berval *oid,
1483         LDAPControl **ctrl )
1484 {
1485         int rc;
1486         struct berval bv;
1487         BerElementBuffer berbuf;
1488         BerElement *ber = (BerElement *) &berbuf;
1489         LDAPControl c;
1490         Operation myop;
1491
1492         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1493                 oid->bv_val, e->e_dn, 0 );
1494
1495         rs->sr_entry = e;
1496         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1497                 op->o_preread_attrs : op->o_postread_attrs;
1498
1499         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1500         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1501
1502         ber_init2( ber, &bv, LBER_USE_DER );
1503         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1504
1505         /* create new operation */
1506         myop = *op;
1507         /* FIXME: o_bd needed for ACL */
1508         myop.o_bd = op->o_bd;
1509         myop.o_res_ber = ber;
1510         myop.o_callback = NULL;
1511         myop.ors_slimit = 1;
1512
1513         rc = slap_send_search_entry( &myop, rs );
1514         if( rc ) return rc;
1515
1516         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1517
1518         if( rc == LBER_ERROR ) return LDAP_OTHER;
1519
1520         c.ldctl_oid = oid->bv_val;
1521         c.ldctl_iscritical = 0;
1522
1523         if ( *ctrl == NULL ) {
1524                 /* first try */
1525                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1526         } else {
1527                 /* retry: free previous try */
1528                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1529         }
1530
1531         **ctrl = c;
1532         return LDAP_SUCCESS;
1533 }
1534
1535 /* Map API errors to protocol errors... */
1536 int
1537 slap_map_api2result( SlapReply *rs )
1538 {
1539         switch(rs->sr_err) {
1540         case LDAP_SERVER_DOWN:
1541                 return LDAP_UNAVAILABLE;
1542         case LDAP_LOCAL_ERROR:
1543                 return LDAP_OTHER;
1544         case LDAP_ENCODING_ERROR:
1545         case LDAP_DECODING_ERROR:
1546                 return LDAP_PROTOCOL_ERROR;
1547         case LDAP_TIMEOUT:
1548                 return LDAP_UNAVAILABLE;
1549         case LDAP_AUTH_UNKNOWN:
1550                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1551         case LDAP_FILTER_ERROR:
1552                 rs->sr_text = "Filter error";
1553                 return LDAP_OTHER;
1554         case LDAP_USER_CANCELLED:
1555                 rs->sr_text = "User cancelled";
1556                 return LDAP_OTHER;
1557         case LDAP_PARAM_ERROR:
1558                 return LDAP_PROTOCOL_ERROR;
1559         case LDAP_NO_MEMORY:
1560                 return LDAP_OTHER;
1561         case LDAP_CONNECT_ERROR:
1562                 return LDAP_UNAVAILABLE;
1563         case LDAP_NOT_SUPPORTED:
1564                 return LDAP_UNWILLING_TO_PERFORM;
1565         case LDAP_CONTROL_NOT_FOUND:
1566                 return LDAP_PROTOCOL_ERROR;
1567         case LDAP_NO_RESULTS_RETURNED:
1568                 return LDAP_NO_SUCH_OBJECT;
1569         case LDAP_MORE_RESULTS_TO_RETURN:
1570                 rs->sr_text = "More results to return";
1571                 return LDAP_OTHER;
1572         case LDAP_CLIENT_LOOP:
1573         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1574                 return LDAP_LOOP_DETECT;
1575         default:
1576                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1577                 return rs->sr_err;
1578         }
1579 }
1580
1581
1582 slap_mask_t
1583 slap_attr_flags( AttributeName *an )
1584 {
1585         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1586
1587         if ( an == NULL ) {
1588                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1589
1590         } else {
1591                 flags |= an_find( an, &AllOper )
1592                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1593                 flags |= an_find( an, &AllUser )
1594                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1595         }
1596
1597         return flags;
1598 }
1599