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 1998-2005 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 #ifdef LDAP_SLAPI
  41 #include "slapi/slapi.h"
  42 #endif
  43
  44 const struct berval slap_dummy_bv = BER_BVNULL;
  45
  46 int slap_null_cb( Operation *op, SlapReply *rs )
  47 {
  48         return 0;
  49 }
  50
  51 int slap_freeself_cb( Operation *op, SlapReply *rs )
  52 {
  53         assert( op->o_callback );
  54
  55         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  56         op->o_callback = NULL;
  57
  58         return SLAP_CB_CONTINUE;
  59 }
  60
  61 int slap_replog_cb( Operation *op, SlapReply *rs )
  62 {
  63         if ( rs->sr_err == LDAP_SUCCESS ) {
  64                 replog( op );
  65         }
  66         return SLAP_CB_CONTINUE;
  67 }
  68
  69 static char *v2ref( BerVarray ref, const char *text )
  70 {
  71         size_t len = 0, i = 0;
  72         char *v2;
  73
  74         if(ref == NULL) {
  75                 if (text) {
  76                         return ch_strdup(text);
  77                 } else {
  78                         return NULL;
  79                 }
  80         }
  81
  82         if ( text != NULL ) {
  83                 len = strlen( text );
  84                 if (text[len-1] != '\n') {
  85                     i = 1;
  86                 }
  87         }
  88
  89         v2 = SLAP_MALLOC( len+i+sizeof("Referral:") );
  90         if( v2 == NULL ) {
  91                 Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
  92                 return NULL;
  93         }
  94
  95         if( text != NULL ) {
  96                 strcpy(v2, text);
  97                 if( i ) {
  98                         v2[len++] = '\n';
  99                 }
 100         }
 101         strcpy( v2+len, "Referral:" );
 102         len += sizeof("Referral:");
 103
 104         for( i=0; ref[i].bv_val != NULL; i++ ) {
 105                 v2 = SLAP_REALLOC( v2, len + ref[i].bv_len + 1 );
 106                 if( v2 == NULL ) {
 107                         Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
 108                         return NULL;
 109                 }
 110                 v2[len-1] = '\n';
 111                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
 112                 len += ref[i].bv_len;
 113                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
 114                         ++len;
 115                 }
 116         }
 117
 118         v2[len-1] = '\0';
 119         return v2;
 120 }
 121
 122 static ber_tag_t req2res( ber_tag_t tag )
 123 {
 124         switch( tag ) {
 125         case LDAP_REQ_ADD:
 126         case LDAP_REQ_BIND:
 127         case LDAP_REQ_COMPARE:
 128         case LDAP_REQ_EXTENDED:
 129         case LDAP_REQ_MODIFY:
 130         case LDAP_REQ_MODRDN:
 131                 tag++;
 132                 break;
 133
 134         case LDAP_REQ_DELETE:
 135                 tag = LDAP_RES_DELETE;
 136                 break;
 137
 138         case LDAP_REQ_ABANDON:
 139         case LDAP_REQ_UNBIND:
 140                 tag = LBER_SEQUENCE;
 141                 break;
 142
 143         case LDAP_REQ_SEARCH:
 144                 tag = LDAP_RES_SEARCH_RESULT;
 145                 break;
 146
 147         default:
 148                 tag = LBER_SEQUENCE;
 149         }
 150
 151         return tag;
 152 }
 153
 154 static long send_ldap_ber(
 155         Connection *conn,
 156         BerElement *ber )
 157 {
 158         ber_len_t bytes;
 159
 160         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 161
 162         /* write only one pdu at a time - wait til it's our turn */
 163         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 164
 165         /* lock the connection */
 166         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 167
 168         /* write the pdu */
 169         while( 1 ) {
 170                 int err;
 171                 ber_socket_t    sd;
 172
 173                 if ( connection_state_closing( conn ) ) {
 174                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 175                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 176
 177                         return 0;
 178                 }
 179
 180                 if ( ber_flush( conn->c_sb, ber, 0 ) == 0 ) {
 181                         break;
 182                 }
 183
 184                 err = errno;
 185
 186                 /*
 187                  * we got an error.  if it's ewouldblock, we need to
 188                  * wait on the socket being writable.  otherwise, figure
 189                  * it's a hard error and return.
 190                  */
 191
 192                 Debug( LDAP_DEBUG_CONNS, "ber_flush failed errno=%d reason=\"%s\"\n",
 193                     err, sock_errstr(err), 0 );
 194
 195                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 196                         connection_closing( conn );
 197
 198                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 199                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 200
 201                         return( -1 );
 202                 }
 203
 204                 /* wait for socket to be write-ready */
 205                 conn->c_writewaiter = 1;
 206                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 207                 slapd_set_write( sd, 1 );
 208
 209                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 210                 conn->c_writewaiter = 0;
 211         }
 212
 213         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 214         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 215
 216         return bytes;
 217 }
 218
 219 static int
 220 send_ldap_control( BerElement *ber, LDAPControl *c )
 221 {
 222         int rc;
 223
 224         assert( c != NULL );
 225
 226         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 227
 228         if( c->ldctl_iscritical ) {
 229                 rc = ber_printf( ber, "b",
 230                         (ber_int_t) c->ldctl_iscritical ) ;
 231                 if( rc == -1 ) return rc;
 232         }
 233
 234         if( c->ldctl_value.bv_val != NULL ) {
 235                 rc = ber_printf( ber, "O", &c->ldctl_value );
 236                 if( rc == -1 ) return rc;
 237         }
 238
 239         rc = ber_printf( ber, /*{*/"N}" );
 240         if( rc == -1 ) return rc;
 241
 242         return 0;
 243 }
 244
 245 static int
 246 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 247 {
 248         int rc;
 249 #ifdef LDAP_SLAPI
 250         LDAPControl **sctrls = NULL;
 251
 252         /*
 253          * Retrieve any additional controls that may be set by the
 254          * plugin.
 255          */
 256
 257         if ( o->o_pb &&
 258                 slapi_pblock_get( o->o_pb, SLAPI_RESCONTROLS, &sctrls ) != 0 )
 259         {
 260                 sctrls = NULL;
 261         }
 262
 263         if ( c == NULL && sctrls == NULL ) return 0;
 264 #else
 265         if( c == NULL ) return 0;
 266 #endif /* LDAP_SLAPI */
 267
 268         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 269         if( rc == -1 ) return rc;
 270
 271 #ifdef LDAP_SLAPI
 272         if ( c != NULL )
 273 #endif /* LDAP_SLAPI */
 274         {
 275                 for( ; *c != NULL; c++) {
 276                         rc = send_ldap_control( ber, *c );
 277                         if( rc == -1 ) return rc;
 278                 }
 279         }
 280
 281 #ifdef LDAP_DEVEL
 282         /* this is a hack to avoid having to modify op->s_ctrls */
 283         if( o->o_sortedresults ) {
 284                 BerElementBuffer berbuf;
 285                 BerElement *sber = (BerElement *) &berbuf;
 286                 LDAPControl sorted;
 287                 BER_BVZERO( &sorted.ldctl_value );
 288                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 289                 sorted.ldctl_iscritical = 0;
 290
 291                 ber_init2( sber, NULL, LBER_USE_DER );
 292
 293                 ber_printf( sber, "{i}", LDAP_UNWILLING_TO_PERFORM );
 294
 295                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 296                         return LBER_ERROR;
 297                 }
 298
 299                 (void) ber_free_buf( ber );
 300
 301                 rc = send_ldap_control( ber, &sorted );
 302                 if( rc == -1 ) return rc;
 303         }
 304 #endif
 305
 306 #ifdef LDAP_SLAPI
 307         if ( sctrls != NULL ) {
 308                 for ( c = sctrls; *c != NULL; c++ ) {
 309                         rc = send_ldap_control( ber, *c );
 310                         if( rc == -1 ) return rc;
 311                 }
 312         }
 313 #endif /* LDAP_SLAPI */
 314
 315         rc = ber_printf( ber, /*{*/"N}" );
 316
 317         return rc;
 318 }
 319
 320 static int
 321 send_ldap_response(
 322         Operation *op,
 323         SlapReply *rs )
 324 {
 325         BerElementBuffer berbuf;
 326         BerElement      *ber = (BerElement *) &berbuf;
 327         int             rc = LDAP_SUCCESS;
 328         long    bytes;
 329
 330         if ( op->o_callback ) {
 331                 int             first = 1;
 332                 slap_callback   *sc = op->o_callback,
 333                                 *sc_next = op->o_callback;
 334
 335                 rc = SLAP_CB_CONTINUE;
 336                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 337                         sc_next = op->o_callback->sc_next;
 338                         if ( op->o_callback->sc_response ) {
 339                                 rc = op->o_callback->sc_response( op, rs );
 340                                 if ( first && op->o_callback == NULL ) {
 341                                         sc = NULL;
 342                                 }
 343                                 if ( rc != SLAP_CB_CONTINUE ) break;
 344                         }
 345                         first = 0;
 346                 }
 347
 348                 op->o_callback = sc;
 349                 if ( rc != SLAP_CB_CONTINUE ) goto clean2;
 350         }
 351
 352 #ifdef LDAP_CONNECTIONLESS
 353         if (op->o_conn && op->o_conn->c_is_udp)
 354                 ber = op->o_res_ber;
 355         else
 356 #endif
 357         {
 358                 ber_init_w_nullc( ber, LBER_USE_DER );
 359                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 360         }
 361
 362         Debug( LDAP_DEBUG_TRACE,
 363                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 364                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 365
 366         if( rs->sr_ref ) {
 367                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 368                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 369                         NULL, NULL );
 370         }
 371
 372 #ifdef LDAP_CONNECTIONLESS
 373         if (op->o_conn && op->o_conn->c_is_udp &&
 374                 op->o_protocol == LDAP_VERSION2 )
 375         {
 376                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 377                         rs->sr_tag, rs->sr_err,
 378                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 379                 rs->sr_text == NULL ? "" : rs->sr_text );
 380         } else
 381 #endif
 382         if ( rs->sr_type == REP_INTERMEDIATE ) {
 383             rc = ber_printf( ber, "{it{" /*"}}"*/,
 384                         rs->sr_msgid, rs->sr_tag );
 385
 386         } else {
 387             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 388                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 389                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 390                 rs->sr_text == NULL ? "" : rs->sr_text );
 391         }
 392
 393         if( rc != -1 ) {
 394                 if ( rs->sr_ref != NULL ) {
 395                         assert( rs->sr_err == LDAP_REFERRAL );
 396                         rc = ber_printf( ber, "t{W}",
 397                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 398                 } else {
 399                         assert( rs->sr_err != LDAP_REFERRAL );
 400                 }
 401         }
 402
 403         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 404                 rc = ber_printf( ber, "tO",
 405                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 406         }
 407
 408         if( rc != -1 &&
 409                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 410         {
 411                 if ( rs->sr_rspoid != NULL ) {
 412                         rc = ber_printf( ber, "ts",
 413                                 rs->sr_type == REP_EXTENDED
 414                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 415                                 rs->sr_rspoid );
 416                 }
 417                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 418                         rc = ber_printf( ber, "tO",
 419                                 rs->sr_type == REP_EXTENDED
 420                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 421                                 rs->sr_rspdata );
 422                 }
 423         }
 424
 425         if( rc != -1 ) {
 426                 rc = ber_printf( ber, /*"{"*/ "N}" );
 427         }
 428
 429         if( rc != -1 ) {
 430                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 431         }
 432
 433         if( rc != -1 ) {
 434                 rc = ber_printf( ber, /*"{"*/ "N}" );
 435         }
 436
 437 #ifdef LDAP_CONNECTIONLESS
 438         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 439                 && rc != -1 )
 440         {
 441                 rc = ber_printf( ber, /*"{"*/ "N}" );
 442         }
 443 #endif
 444
 445         if ( rc == -1 ) {
 446                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 447
 448 #ifdef LDAP_CONNECTIONLESS
 449                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 450 #endif
 451                 {
 452                         ber_free_buf( ber );
 453                 }
 454                 goto cleanup;
 455         }
 456
 457         /* send BER */
 458         bytes = send_ldap_ber( op->o_conn, ber );
 459 #ifdef LDAP_CONNECTIONLESS
 460         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 461 #endif
 462         {
 463                 ber_free_buf( ber );
 464         }
 465
 466         if ( bytes < 0 ) {
 467                 Debug( LDAP_DEBUG_ANY,
 468                         "send_ldap_response: ber write failed\n",
 469                         0, 0, 0 );
 470
 471                 goto cleanup;
 472         }
 473
 474 #ifdef LDAP_SLAPI
 475         if ( op->o_pb ) {
 476                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE, (void *)rs->sr_err );
 477                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 478                         (void *)rs->sr_matched );
 479                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT, (void *)rs->sr_text );
 480         }
 481 #endif /* LDAP_SLAPI */
 482
 483         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 484         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 485         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 486         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 487
 488 cleanup:;
 489         /* Tell caller that we did this for real, as opposed to being
 490          * overridden by a callback
 491          */
 492         rc = SLAP_CB_CONTINUE;
 493
 494 clean2:;
 495         if ( op->o_callback ) {
 496                 int             first = 1;
 497                 slap_callback   *sc = op->o_callback, *sc_next;
 498
 499                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 500                         sc_next = op->o_callback->sc_next;
 501                         if ( op->o_callback->sc_cleanup ) {
 502                                 (void)op->o_callback->sc_cleanup( op, rs );
 503                                 if ( first && op->o_callback != sc ) {
 504                                         sc = op->o_callback;
 505                                 }
 506                         }
 507                         first = 0;
 508                 }
 509                 op->o_callback = sc;
 510         }
 511
 512
 513         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 514                 free( (char *)rs->sr_matched );
 515                 rs->sr_matched = NULL;
 516         }
 517
 518         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 519                 ber_bvarray_free( rs->sr_ref );
 520                 rs->sr_ref = NULL;
 521         }
 522
 523         return rc;
 524 }
 525
 526
 527 void
 528 send_ldap_disconnect( Operation *op, SlapReply *rs )
 529 {
 530 #define LDAP_UNSOLICITED_ERROR(e) \
 531         (  (e) == LDAP_PROTOCOL_ERROR \
 532         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 533         || (e) == LDAP_UNAVAILABLE )
 534
 535         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 536
 537         rs->sr_type = REP_EXTENDED;
 538
 539         Debug( LDAP_DEBUG_TRACE,
 540                 "send_ldap_disconnect %d:%s\n",
 541                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 542
 543         if ( op->o_protocol < LDAP_VERSION3 ) {
 544                 rs->sr_rspoid = NULL;
 545                 rs->sr_tag = req2res( op->o_tag );
 546                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 547
 548         } else {
 549                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 550                 rs->sr_tag = LDAP_RES_EXTENDED;
 551                 rs->sr_msgid = 0;
 552         }
 553
 554         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 555                 Statslog( LDAP_DEBUG_STATS,
 556                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 557                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 558                         rs->sr_text ? rs->sr_text : "", 0 );
 559         }
 560 }
 561
 562 void
 563 slap_send_ldap_result( Operation *op, SlapReply *rs )
 564 {
 565         char *tmp = NULL;
 566         const char *otext = rs->sr_text;
 567         BerVarray oref = rs->sr_ref;
 568
 569         rs->sr_type = REP_RESULT;
 570
 571         assert( !LDAP_API_ERROR( rs->sr_err ));
 572
 573         Debug( LDAP_DEBUG_TRACE,
 574                 "send_ldap_result: %s p=%d\n",
 575                 op->o_log_prefix, op->o_protocol, 0 );
 576
 577         Debug( LDAP_DEBUG_ARGS,
 578                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 579                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 580                 rs->sr_text ? rs->sr_text : "" );
 581
 582
 583         if( rs->sr_ref ) {
 584                 Debug( LDAP_DEBUG_ARGS,
 585                         "send_ldap_result: referral=\"%s\"\n",
 586                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 587                         NULL, NULL );
 588         }
 589
 590         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 591
 592         if ( rs->sr_err == LDAP_REFERRAL ) {
 593 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 594                 if( op->o_domain_scope ) {
 595                         rs->sr_ref = NULL;
 596                 }
 597 #endif
 598                 if( rs->sr_ref == NULL ) {
 599                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 600                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 601                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 602                 }
 603         }
 604
 605 #ifdef LDAP_SLAPI
 606         /*
 607          * Call pre-result plugins. To avoid infinite recursion plugins
 608          * should just set SLAPI_RESULT_CODE rather than sending a
 609          * result if they wish to change the result.
 610          */
 611         if ( op->o_callback == NULL && op->o_pb != NULL ) {
 612                 slapi_int_pblock_set_operation( op->o_pb, op );
 613                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE,
 614                         (void *)rs->sr_err );
 615                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT,
 616                         (void *)rs->sr_text );
 617                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 618                         (void *)rs->sr_matched );
 619
 620                 (void) slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_PRE_RESULT_FN,
 621                         op->o_pb );
 622         }
 623 #endif /* LDAP_SLAPI */
 624
 625         if ( op->o_protocol < LDAP_VERSION3 ) {
 626                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 627                 rs->sr_text = tmp;
 628                 rs->sr_ref = NULL;
 629         }
 630
 631         rs->sr_tag = req2res( op->o_tag );
 632         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 633
 634         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 635                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 636                         char nbuf[64];
 637                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 638                                 rs->sr_err, rs->sr_nentries );
 639
 640                         Statslog( LDAP_DEBUG_STATS,
 641                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 642                                 op->o_log_prefix, rs->sr_tag, nbuf,
 643                                 rs->sr_text ? rs->sr_text : "", 0 );
 644                 } else {
 645                         Statslog( LDAP_DEBUG_STATS,
 646                                 "%s RESULT tag=%lu err=%d text=%s\n",
 647                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 648                                 rs->sr_text ? rs->sr_text : "", 0 );
 649                 }
 650         }
 651
 652         if( tmp != NULL ) ch_free(tmp);
 653         rs->sr_text = otext;
 654         rs->sr_ref = oref;
 655 }
 656
 657 void
 658 send_ldap_sasl( Operation *op, SlapReply *rs )
 659 {
 660         rs->sr_type = REP_SASL;
 661         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 662                 rs->sr_err,
 663                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 664
 665         rs->sr_tag = req2res( op->o_tag );
 666         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 667
 668         send_ldap_response( op, rs );
 669 }
 670
 671 void
 672 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 673 {
 674         rs->sr_type = REP_EXTENDED;
 675
 676         Debug( LDAP_DEBUG_TRACE,
 677                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 678                 rs->sr_err,
 679                 rs->sr_rspoid ? rs->sr_rspoid : "",
 680                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 681
 682         rs->sr_tag = req2res( op->o_tag );
 683         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 684
 685         send_ldap_response( op, rs );
 686 }
 687
 688 void
 689 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 690 {
 691         rs->sr_type = REP_INTERMEDIATE;
 692         Debug( LDAP_DEBUG_TRACE,
 693                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 694                 rs->sr_err,
 695                 rs->sr_rspoid ? rs->sr_rspoid : "",
 696                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 697         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 698         rs->sr_msgid = op->o_msgid;
 699         send_ldap_response( op, rs );
 700 }
 701
 702 int
 703 slap_send_search_entry( Operation *op, SlapReply *rs )
 704 {
 705         BerElementBuffer berbuf;
 706         BerElement      *ber = (BerElement *) &berbuf;
 707         Attribute       *a;
 708         int             i, j, rc=-1, bytes;
 709         char            *edn;
 710         int             userattrs;
 711         AccessControlState acl_state = ACL_STATE_INIT;
 712 #ifdef LDAP_SLAPI
 713         /* Support for computed attribute plugins */
 714         computed_attr_context    ctx;
 715         AttributeName   *anp;
 716 #endif
 717         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 718
 719         /* a_flags: array of flags telling if the i-th element will be
 720          *          returned or filtered out
 721          * e_flags: array of a_flags
 722          */
 723         char **e_flags = NULL;
 724
 725         rs->sr_type = REP_SEARCH;
 726
 727         /* eventually will loop through generated operational attribute types
 728          * currently implemented types include:
 729          *      entryDN, subschemaSubentry, and hasSubordinates */
 730         /* NOTE: moved before overlays callback circling because
 731          * they may modify entry and other stuff in rs */
 732         /* check for special all operational attributes ("+") type */
 733         /* FIXME: maybe we could se this flag at the operation level;
 734          * however, in principle the caller of send_search_entry() may
 735          * change the attribute list at each call */
 736         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 737
 738         rc = backend_operational( op, rs );
 739         if ( rc ) {
 740                 goto error_return;
 741         }
 742
 743         if ( op->o_callback ) {
 744                 int             first = 1;
 745                 slap_callback   *sc = op->o_callback,
 746                                 *sc_next = op->o_callback;
 747
 748                 rc = SLAP_CB_CONTINUE;
 749                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 750                         sc_next = op->o_callback->sc_next;
 751                         if ( op->o_callback->sc_response ) {
 752                                 rc = op->o_callback->sc_response( op, rs );
 753                                 if ( first && op->o_callback == NULL ) {
 754                                         sc = NULL;
 755                                 }
 756                                 if ( rc != SLAP_CB_CONTINUE ) break;
 757                         }
 758                         first = 0;
 759                 }
 760
 761                 op->o_callback = sc;
 762                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 763         }
 764
 765         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 766                 op->o_connid, rs->sr_entry->e_name.bv_val,
 767                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 768
 769         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 770                 Debug( LDAP_DEBUG_ACL,
 771                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 772                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 773
 774                 rc = 1;
 775                 goto error_return;
 776         }
 777
 778         edn = rs->sr_entry->e_nname.bv_val;
 779
 780         if ( op->o_res_ber ) {
 781                 /* read back control or LDAP_CONNECTIONLESS */
 782             ber = op->o_res_ber;
 783         } else {
 784                 ber_len_t       siz, len;
 785                 struct berval   bv;
 786
 787                 entry_flatsize( rs->sr_entry, &siz, &len, 0 );
 788                 bv.bv_len = siz + len;
 789                 bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
 790
 791                 ber_init2( ber, &bv, LBER_USE_DER );
 792                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 793         }
 794
 795 #ifdef LDAP_CONNECTIONLESS
 796         if ( op->o_conn && op->o_conn->c_is_udp ) {
 797                 /* CONNECTIONLESS */
 798                 if ( op->o_protocol == LDAP_VERSION2 ) {
 799                 rc = ber_printf(ber, "t{O{" /*}}*/,
 800                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 801                 } else {
 802                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 803                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 804                 }
 805         } else
 806 #endif
 807         if ( op->o_res_ber ) {
 808                 /* read back control */
 809             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 810         } else {
 811             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 812                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 813         }
 814
 815         if ( rc == -1 ) {
 816                 Debug( LDAP_DEBUG_ANY,
 817                         "send_search_entry: conn %lu  ber_printf failed\n",
 818                         op->o_connid, 0, 0 );
 819
 820                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 821                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 822                 goto error_return;
 823         }
 824
 825         /* check for special all user attributes ("*") type */
 826         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 827
 828         /* create an array of arrays of flags. Each flag corresponds
 829          * to particular value of attribute and equals 1 if value matches
 830          * to ValuesReturnFilter or 0 if not
 831          */
 832         if ( op->o_vrFilter != NULL ) {
 833                 int     k = 0;
 834                 size_t  size;
 835
 836                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 837                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 838                 }
 839
 840                 size = i * sizeof(char *) + k;
 841                 if ( size > 0 ) {
 842                         char    *a_flags;
 843                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 844                         if( e_flags == NULL ) {
 845                         Debug( LDAP_DEBUG_ANY,
 846                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 847                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 848                                 ber_free( ber, 1 );
 849
 850                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 851                                 goto error_return;
 852                         }
 853                         a_flags = (char *)(e_flags + i);
 854                         memset( a_flags, 0, k );
 855                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 856                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 857                                 e_flags[i] = a_flags;
 858                                 a_flags += j;
 859                         }
 860
 861                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 862                         if ( rc == -1 ) {
 863                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 864                                         "conn %lu matched values filtering failed\n",
 865                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 866                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 867                                 send_ldap_error( op, rs, LDAP_OTHER,
 868                                         "matched values filtering error" );
 869                                 goto error_return;
 870                         }
 871                 }
 872         }
 873
 874         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 875                 AttributeDescription *desc = a->a_desc;
 876                 int finish = 0;
 877
 878                 if ( rs->sr_attrs == NULL ) {
 879                         /* all attrs request, skip operational attributes */
 880                         if( is_at_operational( desc->ad_type ) ) {
 881                                 continue;
 882                         }
 883
 884                 } else {
 885                         /* specific attrs requested */
 886                         if ( is_at_operational( desc->ad_type ) ) {
 887                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 888                                                 !ad_inlist( desc, rs->sr_attrs ) )
 889                                 {
 890                                         continue;
 891                                 }
 892
 893                         } else {
 894                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) )
 895                                 {
 896                                         continue;
 897                                 }
 898                         }
 899                 }
 900
 901                 if ( op->ors_attrsonly ) {
 902                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 903                                 ACL_READ, &acl_state ) )
 904                         {
 905                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 906                                         "conn %lu access to attribute %s not allowed\n",
 907                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 908                                 continue;
 909                         }
 910
 911                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 912                                 Debug( LDAP_DEBUG_ANY,
 913                                         "send_search_entry: conn %lu  ber_printf failed\n",
 914                                         op->o_connid, 0, 0 );
 915
 916                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 917                                 send_ldap_error( op, rs, LDAP_OTHER,
 918                                         "encoding description error");
 919                                 goto error_return;
 920                         }
 921                         finish = 1;
 922
 923                 } else {
 924                         int first = 1;
 925                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 926                                 if ( ! access_allowed( op, rs->sr_entry,
 927                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 928                                 {
 929                                         Debug( LDAP_DEBUG_ACL,
 930                                                 "send_search_entry: conn %lu "
 931                                                 "access to attribute %s, value #%d not allowed\n",
 932                                                 op->o_connid, desc->ad_cname.bv_val, i );
 933
 934                                         continue;
 935                                 }
 936
 937                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 938                                         continue;
 939                                 }
 940
 941                                 if ( first ) {
 942                                         first = 0;
 943                                         finish = 1;
 944                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 945                                                 Debug( LDAP_DEBUG_ANY,
 946                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 947                                                         op->o_connid, 0, 0 );
 948
 949                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 950                                                 send_ldap_error( op, rs, LDAP_OTHER,
 951                                                         "encoding description error");
 952                                                 goto error_return;
 953                                         }
 954                                 }
 955                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 956                                         Debug( LDAP_DEBUG_ANY,
 957                                                 "send_search_entry: conn %lu  "
 958                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 959
 960                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 961                                         send_ldap_error( op, rs, LDAP_OTHER,
 962                                                 "encoding values error" );
 963                                         goto error_return;
 964                                 }
 965                         }
 966                 }
 967
 968                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 969                         Debug( LDAP_DEBUG_ANY,
 970                                 "send_search_entry: conn %lu ber_printf failed\n",
 971                                 op->o_connid, 0, 0 );
 972
 973                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 974                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 975                         goto error_return;
 976                 }
 977         }
 978
 979         /* NOTE: moved before overlays callback circling because
 980          * they may modify entry and other stuff in rs */
 981         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 982                 int     k = 0;
 983                 size_t  size;
 984
 985                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 986                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 987                 }
 988
 989                 size = i * sizeof(char *) + k;
 990                 if ( size > 0 ) {
 991                         char    *a_flags, **tmp;
 992
 993                         /*
 994                          * Reuse previous memory - we likely need less space
 995                          * for operational attributes
 996                          */
 997                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 998                                 op->o_tmpmemctx );
 999                         if ( tmp == NULL ) {
1000                                 Debug( LDAP_DEBUG_ANY,
1001                                         "send_search_entry: conn %lu "
1002                                         "not enough memory "
1003                                         "for matched values filtering\n",
1004                                         op->o_connid, 0, 0 );
1005                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1006                                 send_ldap_error( op, rs, LDAP_OTHER,
1007                                         "not enough memory for matched values filtering" );
1008                                 goto error_return;
1009                         }
1010                         e_flags = tmp;
1011                         a_flags = (char *)(e_flags + i);
1012                         memset( a_flags, 0, k );
1013                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1014                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1015                                 e_flags[i] = a_flags;
1016                                 a_flags += j;
1017                         }
1018                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1019
1020                         if ( rc == -1 ) {
1021                                 Debug( LDAP_DEBUG_ANY,
1022                                         "send_search_entry: conn %lu "
1023                                         "matched values filtering failed\n",
1024                                         op->o_connid ? op->o_connid : 0, 0, 0);
1025                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1026                                 send_ldap_error( op, rs, LDAP_OTHER,
1027                                         "matched values filtering error" );
1028                                 goto error_return;
1029                         }
1030                 }
1031         }
1032
1033         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1034                 AttributeDescription *desc = a->a_desc;
1035
1036                 if ( rs->sr_attrs == NULL ) {
1037                         /* all attrs request, skip operational attributes */
1038                         if( is_at_operational( desc->ad_type ) ) {
1039                                 continue;
1040                         }
1041
1042                 } else {
1043                         /* specific attrs requested */
1044                         if( is_at_operational( desc->ad_type ) ) {
1045                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1046                                                 !ad_inlist( desc, rs->sr_attrs ) )
1047                                 {
1048                                         continue;
1049                                 }
1050                         } else {
1051                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1052                                         continue;
1053                                 }
1054                         }
1055                 }
1056
1057                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1058                         ACL_READ, &acl_state ) )
1059                 {
1060                         Debug( LDAP_DEBUG_ACL,
1061                                 "send_search_entry: conn %lu "
1062                                 "access to attribute %s not allowed\n",
1063                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1064
1065                         continue;
1066                 }
1067
1068                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1069                 if ( rc == -1 ) {
1070                         Debug( LDAP_DEBUG_ANY,
1071                                 "send_search_entry: conn %lu  "
1072                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1073
1074                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1075                         send_ldap_error( op, rs, LDAP_OTHER,
1076                                 "encoding description error" );
1077                         goto error_return;
1078                 }
1079
1080                 if ( ! op->ors_attrsonly ) {
1081                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1082                                 if ( ! access_allowed( op, rs->sr_entry,
1083                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1084                                 {
1085                                         Debug( LDAP_DEBUG_ACL,
1086                                                 "send_search_entry: conn %lu "
1087                                                 "access to %s, value %d not allowed\n",
1088                                                 op->o_connid, desc->ad_cname.bv_val, i );
1089
1090                                         continue;
1091                                 }
1092
1093                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1094                                         continue;
1095                                 }
1096
1097                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1098                                         Debug( LDAP_DEBUG_ANY,
1099                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1100                                                 op->o_connid, 0, 0 );
1101
1102                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1103                                         send_ldap_error( op, rs, LDAP_OTHER,
1104                                                 "encoding values error" );
1105                                         goto error_return;
1106                                 }
1107                         }
1108                 }
1109
1110                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -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, "encode end error" );
1117                         goto error_return;
1118                 }
1119         }
1120
1121 #ifdef LDAP_SLAPI
1122         /*
1123          * First, setup the computed attribute context that is
1124          * passed to all plugins.
1125          */
1126         if ( op->o_pb ) {
1127                 ctx.cac_pb = op->o_pb;
1128                 ctx.cac_attrs = rs->sr_attrs;
1129                 ctx.cac_attrsonly = op->ors_attrsonly;
1130                 ctx.cac_userattrs = userattrs;
1131                 ctx.cac_opattrs = rs->sr_attr_flags;
1132                 ctx.cac_acl_state = acl_state;
1133                 ctx.cac_private = (void *)ber;
1134
1135                 /*
1136                  * For each client requested attribute, call the plugins.
1137                  */
1138                 if ( rs->sr_attrs != NULL ) {
1139                         for ( anp = rs->sr_attrs; anp->an_name.bv_val != NULL; anp++ ) {
1140                                 rc = compute_evaluator( &ctx, anp->an_name.bv_val,
1141                                         rs->sr_entry, slapi_int_compute_output_ber );
1142                                 if ( rc == 1 ) break;
1143                         }
1144                 } else {
1145                         /*
1146                          * Technically we shouldn't be returning operational attributes
1147                          * when the user requested only user attributes. We'll let the
1148                          * plugin decide whether to be naughty or not.
1149                          */
1150                         rc = compute_evaluator( &ctx, "*",
1151                                 rs->sr_entry, slapi_int_compute_output_ber );
1152                 }
1153                 if ( rc == 1 ) {
1154                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1155                         send_ldap_error( op, rs, LDAP_OTHER, "computed attribute error" );
1156                         goto error_return;
1157                 }
1158         }
1159 #endif /* LDAP_SLAPI */
1160
1161         /* free e_flags */
1162         if ( e_flags ) {
1163                 slap_sl_free( e_flags, op->o_tmpmemctx );
1164                 e_flags = NULL;
1165         }
1166
1167         rc = ber_printf( ber, /*{{*/ "}N}" );
1168
1169         if( rc != -1 ) {
1170                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1171         }
1172
1173         if( rc != -1 ) {
1174 #ifdef LDAP_CONNECTIONLESS
1175                 if( op->o_conn && op->o_conn->c_is_udp ) {
1176                         if ( op->o_protocol != LDAP_VERSION2 ) {
1177                                 rc = ber_printf( ber, /*{*/ "N}" );
1178                         }
1179                 } else
1180 #endif
1181                 if ( op->o_res_ber == NULL ) {
1182                         rc = ber_printf( ber, /*{*/ "N}" );
1183                 }
1184         }
1185
1186         if ( rc == -1 ) {
1187                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1188
1189                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1190                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1191                 rc = 1;
1192                 goto error_return;
1193         }
1194
1195         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1196                 be_entry_release_rw( op, rs->sr_entry, 0 );
1197                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1198                 rs->sr_entry = NULL;
1199         }
1200
1201         if ( op->o_res_ber == NULL ) {
1202                 bytes = send_ldap_ber( op->o_conn, ber );
1203                 ber_free_buf( ber );
1204
1205                 if ( bytes < 0 ) {
1206                         Debug( LDAP_DEBUG_ANY,
1207                                 "send_search_entry: conn %lu  ber write failed.\n",
1208                                 op->o_connid, 0, 0 );
1209
1210                         rc = -1;
1211                         goto error_return;
1212                 }
1213                 rs->sr_nentries++;
1214
1215                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1216                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1217                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1218                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1219                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1220         }
1221
1222         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1223             op->o_log_prefix, edn, 0, 0, 0 );
1224
1225         Debug( LDAP_DEBUG_TRACE,
1226                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1227
1228         rc = 0;
1229
1230 error_return:;
1231         if ( op->o_callback ) {
1232                 int             first = 1;
1233                 slap_callback   *sc = op->o_callback, *sc_next;
1234
1235                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1236                         sc_next = op->o_callback->sc_next;
1237                         if ( op->o_callback->sc_cleanup ) {
1238                                 (void)op->o_callback->sc_cleanup( op, rs );
1239                                 if ( first && op->o_callback != sc ) {
1240                                         sc = op->o_callback;
1241                                 }
1242                         }
1243                         first = 0;
1244                 }
1245                 op->o_callback = sc;
1246         }
1247
1248         if ( e_flags ) {
1249                 slap_sl_free( e_flags, op->o_tmpmemctx );
1250         }
1251
1252         if ( rs->sr_operational_attrs ) {
1253                 attrs_free( rs->sr_operational_attrs );
1254                 rs->sr_operational_attrs = NULL;
1255         }
1256         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1257
1258         /* FIXME: I think rs->sr_type should be explicitly set to
1259          * REP_SEARCH here. That's what it was when we entered this
1260          * function. send_ldap_error may have changed it, but we
1261          * should set it back so that the cleanup functions know
1262          * what they're doing.
1263          */
1264         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1265                 && rs->sr_entry
1266                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1267         {
1268                 entry_free( rs->sr_entry );
1269                 rs->sr_entry = NULL;
1270                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1271         }
1272
1273         return( rc );
1274 }
1275
1276 int
1277 slap_send_search_reference( Operation *op, SlapReply *rs )
1278 {
1279         BerElementBuffer berbuf;
1280         BerElement      *ber = (BerElement *) &berbuf;
1281         int rc = 0;
1282         int bytes;
1283
1284         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1285         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1286
1287         rs->sr_type = REP_SEARCHREF;
1288         if ( op->o_callback ) {
1289                 int             first = 1;
1290                 slap_callback   *sc = op->o_callback,
1291                                 *sc_next = op->o_callback;
1292
1293                 rc = SLAP_CB_CONTINUE;
1294                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1295                         sc_next = op->o_callback->sc_next;
1296                         if ( op->o_callback->sc_response ) {
1297                                 rc = op->o_callback->sc_response( op, rs );
1298                                 if ( first && op->o_callback == NULL ) {
1299                                         sc = NULL;
1300                                 }
1301                                 if ( rc != SLAP_CB_CONTINUE ) break;
1302                         }
1303                         first = 0;
1304                 }
1305
1306                 op->o_callback = sc;
1307                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1308         }
1309
1310         Debug( LDAP_DEBUG_TRACE,
1311                 "=> send_search_reference: dn=\"%s\"\n",
1312                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1313
1314         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1315                 ad_entry, NULL, ACL_READ, NULL ) )
1316         {
1317                 Debug( LDAP_DEBUG_ACL,
1318                         "send_search_reference: access to entry not allowed\n",
1319                     0, 0, 0 );
1320                 rc = 1;
1321                 goto rel;
1322         }
1323
1324         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1325                 ad_ref, NULL, ACL_READ, NULL ) )
1326         {
1327                 Debug( LDAP_DEBUG_ACL,
1328                         "send_search_reference: access "
1329                         "to reference not allowed\n",
1330                     0, 0, 0 );
1331                 rc = 1;
1332                 goto rel;
1333         }
1334
1335 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1336         if( op->o_domain_scope ) {
1337                 Debug( LDAP_DEBUG_ANY,
1338                         "send_search_reference: domainScope control in (%s)\n",
1339                         rs->sr_entry->e_dn, 0, 0 );
1340                 rc = 0;
1341                 goto rel;
1342         }
1343 #endif
1344
1345         if( rs->sr_ref == NULL ) {
1346                 Debug( LDAP_DEBUG_ANY,
1347                         "send_search_reference: null ref in (%s)\n",
1348                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1349                 rc = 1;
1350                 goto rel;
1351         }
1352
1353         if( op->o_protocol < LDAP_VERSION3 ) {
1354                 rc = 0;
1355                 /* save the references for the result */
1356                 if( rs->sr_ref[0].bv_val != NULL ) {
1357                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1358                                 rc = LDAP_OTHER;
1359                 }
1360                 goto rel;
1361         }
1362
1363 #ifdef LDAP_CONNECTIONLESS
1364         if( op->o_conn && op->o_conn->c_is_udp ) {
1365                 ber = op->o_res_ber;
1366         } else
1367 #endif
1368         {
1369                 ber_init_w_nullc( ber, LBER_USE_DER );
1370                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1371         }
1372
1373         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1374                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1375
1376         if( rc != -1 ) {
1377                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1378         }
1379
1380         if( rc != -1 ) {
1381                 rc = ber_printf( ber, /*"{"*/ "N}" );
1382         }
1383
1384         if ( rc == -1 ) {
1385                 Debug( LDAP_DEBUG_ANY,
1386                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1387
1388 #ifdef LDAP_CONNECTIONLESS
1389                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1390 #endif
1391                 ber_free_buf( ber );
1392                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1393                 goto rel;
1394         }
1395
1396         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1397                 be_entry_release_rw( op, rs->sr_entry, 0 );
1398                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1399                 rs->sr_entry = NULL;
1400         }
1401
1402 #ifdef LDAP_CONNECTIONLESS
1403         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1404 #endif
1405         bytes = send_ldap_ber( op->o_conn, ber );
1406         ber_free_buf( ber );
1407
1408         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1409         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1410         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1411         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1412         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1413 #ifdef LDAP_CONNECTIONLESS
1414         }
1415 #endif
1416
1417         Statslog( LDAP_DEBUG_STATS2, "%s REF dn=\"%s\"\n",
1418                 op->o_log_prefix, rs->sr_entry ? rs->sr_entry->e_dn : "(null)",
1419                 0, 0, 0 );
1420
1421         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1422
1423 rel:
1424         if ( op->o_callback ) {
1425                 int             first = 1;
1426                 slap_callback   *sc = op->o_callback, *sc_next;
1427
1428                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1429                         sc_next = op->o_callback->sc_next;
1430                         if ( op->o_callback->sc_cleanup ) {
1431                                 (void)op->o_callback->sc_cleanup( op, rs );
1432                                 if ( first && op->o_callback != sc ) {
1433                                         sc = op->o_callback;
1434                                 }
1435                         }
1436                         first = 0;
1437                 }
1438                 op->o_callback = sc;
1439         }
1440
1441         return rc;
1442 }
1443
1444 int
1445 str2result(
1446     char        *s,
1447     int         *code,
1448     char        **matched,
1449     char        **info )
1450 {
1451         int     rc;
1452         char    *c;
1453
1454         *code = LDAP_SUCCESS;
1455         *matched = NULL;
1456         *info = NULL;
1457
1458         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1459                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1460                     s, 0, 0 );
1461
1462                 return( -1 );
1463         }
1464
1465         rc = 0;
1466         while ( (s = strchr( s, '\n' )) != NULL ) {
1467                 *s++ = '\0';
1468                 if ( *s == '\0' ) {
1469                         break;
1470                 }
1471                 if ( (c = strchr( s, ':' )) != NULL ) {
1472                         c++;
1473                 }
1474
1475                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1476                         if ( c != NULL ) {
1477                                 *code = atoi( c );
1478                         }
1479                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1480                         if ( c != NULL ) {
1481                                 *matched = c;
1482                         }
1483                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1484                         if ( c != NULL ) {
1485                                 *info = c;
1486                         }
1487                 } else {
1488                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1489                             s, 0, 0 );
1490
1491                         rc = -1;
1492                 }
1493         }
1494
1495         return( rc );
1496 }
1497
1498 int slap_read_controls(
1499         Operation *op,
1500         SlapReply *rs,
1501         Entry *e,
1502         const struct berval *oid,
1503         LDAPControl **ctrl )
1504 {
1505         int rc;
1506         struct berval bv;
1507         BerElementBuffer berbuf;
1508         BerElement *ber = (BerElement *) &berbuf;
1509         LDAPControl c;
1510         ber_len_t       siz, len;
1511         Operation myop;
1512
1513         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1514                 oid->bv_val, e->e_dn, 0 );
1515
1516         rs->sr_entry = e;
1517         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1518                 op->o_preread_attrs : op->o_postread_attrs;
1519
1520         entry_flatsize( rs->sr_entry, &siz, &len, 0 );
1521         bv.bv_len = siz + len;
1522         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1523
1524         ber_init2( ber, &bv, LBER_USE_DER );
1525         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1526
1527         /* create new operation */
1528         myop = *op;
1529         myop.o_bd = NULL;
1530         myop.o_res_ber = ber;
1531
1532         rc = slap_send_search_entry( &myop, rs );
1533         if( rc ) return rc;
1534
1535         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1536
1537         if( rc == LBER_ERROR ) return LDAP_OTHER;
1538
1539         c.ldctl_oid = oid->bv_val;
1540         c.ldctl_iscritical = 0;
1541
1542         if ( ctrl == NULL ) {
1543                 /* first try */
1544                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1545         } else {
1546                 /* retry: free previous try */
1547                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1548         }
1549
1550         **ctrl = c;
1551         return LDAP_SUCCESS;
1552 }
1553
1554 /* Map API errors to protocol errors... */
1555 int
1556 slap_map_api2result( SlapReply *rs )
1557 {
1558         switch(rs->sr_err) {
1559         case LDAP_SERVER_DOWN:
1560                 return LDAP_UNAVAILABLE;
1561         case LDAP_LOCAL_ERROR:
1562                 return LDAP_OTHER;
1563         case LDAP_ENCODING_ERROR:
1564         case LDAP_DECODING_ERROR:
1565                 return LDAP_PROTOCOL_ERROR;
1566         case LDAP_TIMEOUT:
1567                 return LDAP_UNAVAILABLE;
1568         case LDAP_AUTH_UNKNOWN:
1569                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1570         case LDAP_FILTER_ERROR:
1571                 rs->sr_text = "Filter error";
1572                 return LDAP_OTHER;
1573         case LDAP_USER_CANCELLED:
1574                 rs->sr_text = "User cancelled";
1575                 return LDAP_OTHER;
1576         case LDAP_PARAM_ERROR:
1577                 return LDAP_PROTOCOL_ERROR;
1578         case LDAP_NO_MEMORY:
1579                 return LDAP_OTHER;
1580         case LDAP_CONNECT_ERROR:
1581                 return LDAP_UNAVAILABLE;
1582         case LDAP_NOT_SUPPORTED:
1583                 return LDAP_UNWILLING_TO_PERFORM;
1584         case LDAP_CONTROL_NOT_FOUND:
1585                 return LDAP_PROTOCOL_ERROR;
1586         case LDAP_NO_RESULTS_RETURNED:
1587                 return LDAP_NO_SUCH_OBJECT;
1588         case LDAP_MORE_RESULTS_TO_RETURN:
1589                 rs->sr_text = "More results to return";
1590                 return LDAP_OTHER;
1591         case LDAP_CLIENT_LOOP:
1592         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1593                 return LDAP_LOOP_DETECT;
1594         default:
1595                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1596                 return rs->sr_err;
1597         }
1598 }
1599
1600
1601 slap_mask_t
1602 slap_attr_flags( AttributeName *an )
1603 {
1604         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1605
1606         if ( an == NULL ) {
1607                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1608
1609         } else {
1610                 flags |= an_find( an, &AllOper )
1611                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1612                 flags |= an_find( an, &AllUser )
1613                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1614         }
1615
1616         return flags;
1617 }
1618