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 ( rs->sr_err == SLAPD_ABANDON ) {
 331                 rc = SLAPD_ABANDON;
 332                 goto clean2;
 333         }
 334
 335         if ( op->o_callback ) {
 336                 int             first = 1;
 337                 slap_callback   *sc = op->o_callback,
 338                                 *sc_next = op->o_callback;
 339
 340                 rc = SLAP_CB_CONTINUE;
 341                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 342                         sc_next = op->o_callback->sc_next;
 343                         if ( op->o_callback->sc_response ) {
 344                                 rc = op->o_callback->sc_response( op, rs );
 345                                 if ( first && op->o_callback == NULL ) {
 346                                         sc = NULL;
 347                                 }
 348                                 if ( rc != SLAP_CB_CONTINUE ) break;
 349                         }
 350                         first = 0;
 351                 }
 352
 353                 op->o_callback = sc;
 354                 if ( rc != SLAP_CB_CONTINUE ) goto clean2;
 355         }
 356
 357 #ifdef LDAP_CONNECTIONLESS
 358         if (op->o_conn && op->o_conn->c_is_udp)
 359                 ber = op->o_res_ber;
 360         else
 361 #endif
 362         {
 363                 ber_init_w_nullc( ber, LBER_USE_DER );
 364                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 365         }
 366
 367         Debug( LDAP_DEBUG_TRACE,
 368                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 369                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 370
 371         if( rs->sr_ref ) {
 372                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 373                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 374                         NULL, NULL );
 375         }
 376
 377 #ifdef LDAP_CONNECTIONLESS
 378         if (op->o_conn && op->o_conn->c_is_udp &&
 379                 op->o_protocol == LDAP_VERSION2 )
 380         {
 381                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 382                         rs->sr_tag, rs->sr_err,
 383                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 384                 rs->sr_text == NULL ? "" : rs->sr_text );
 385         } else
 386 #endif
 387         if ( rs->sr_type == REP_INTERMEDIATE ) {
 388             rc = ber_printf( ber, "{it{" /*"}}"*/,
 389                         rs->sr_msgid, rs->sr_tag );
 390
 391         } else {
 392             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 393                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 394                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 395                 rs->sr_text == NULL ? "" : rs->sr_text );
 396         }
 397
 398         if( rc != -1 ) {
 399                 if ( rs->sr_ref != NULL ) {
 400                         assert( rs->sr_err == LDAP_REFERRAL );
 401                         rc = ber_printf( ber, "t{W}",
 402                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 403                 } else {
 404                         assert( rs->sr_err != LDAP_REFERRAL );
 405                 }
 406         }
 407
 408         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 409                 rc = ber_printf( ber, "tO",
 410                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 411         }
 412
 413         if( rc != -1 &&
 414                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 415         {
 416                 if ( rs->sr_rspoid != NULL ) {
 417                         rc = ber_printf( ber, "ts",
 418                                 rs->sr_type == REP_EXTENDED
 419                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 420                                 rs->sr_rspoid );
 421                 }
 422                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 423                         rc = ber_printf( ber, "tO",
 424                                 rs->sr_type == REP_EXTENDED
 425                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 426                                 rs->sr_rspdata );
 427                 }
 428         }
 429
 430         if( rc != -1 ) {
 431                 rc = ber_printf( ber, /*"{"*/ "N}" );
 432         }
 433
 434         if( rc != -1 ) {
 435                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 436         }
 437
 438         if( rc != -1 ) {
 439                 rc = ber_printf( ber, /*"{"*/ "N}" );
 440         }
 441
 442 #ifdef LDAP_CONNECTIONLESS
 443         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 444                 && rc != -1 )
 445         {
 446                 rc = ber_printf( ber, /*"{"*/ "N}" );
 447         }
 448 #endif
 449
 450         if ( rc == -1 ) {
 451                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 452
 453 #ifdef LDAP_CONNECTIONLESS
 454                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 455 #endif
 456                 {
 457                         ber_free_buf( ber );
 458                 }
 459                 goto cleanup;
 460         }
 461
 462         /* send BER */
 463         bytes = send_ldap_ber( op->o_conn, ber );
 464 #ifdef LDAP_CONNECTIONLESS
 465         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 466 #endif
 467         {
 468                 ber_free_buf( ber );
 469         }
 470
 471         if ( bytes < 0 ) {
 472                 Debug( LDAP_DEBUG_ANY,
 473                         "send_ldap_response: ber write failed\n",
 474                         0, 0, 0 );
 475
 476                 goto cleanup;
 477         }
 478
 479 #ifdef LDAP_SLAPI
 480         if ( op->o_pb ) {
 481                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE, (void *)rs->sr_err );
 482                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 483                         (void *)rs->sr_matched );
 484                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT, (void *)rs->sr_text );
 485         }
 486 #endif /* LDAP_SLAPI */
 487
 488         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 489         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 490         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 491         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 492
 493 cleanup:;
 494         /* Tell caller that we did this for real, as opposed to being
 495          * overridden by a callback
 496          */
 497         rc = SLAP_CB_CONTINUE;
 498
 499 clean2:;
 500         if ( op->o_callback ) {
 501                 int             first = 1;
 502                 slap_callback   *sc = op->o_callback, *sc_next;
 503
 504                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 505                         sc_next = op->o_callback->sc_next;
 506                         if ( op->o_callback->sc_cleanup ) {
 507                                 (void)op->o_callback->sc_cleanup( op, rs );
 508                                 if ( first && op->o_callback != sc ) {
 509                                         sc = op->o_callback;
 510                                 }
 511                         }
 512                         first = 0;
 513                 }
 514                 op->o_callback = sc;
 515         }
 516
 517
 518         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 519                 free( (char *)rs->sr_matched );
 520                 rs->sr_matched = NULL;
 521         }
 522
 523         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 524                 ber_bvarray_free( rs->sr_ref );
 525                 rs->sr_ref = NULL;
 526         }
 527
 528         return rc;
 529 }
 530
 531
 532 void
 533 send_ldap_disconnect( Operation *op, SlapReply *rs )
 534 {
 535 #define LDAP_UNSOLICITED_ERROR(e) \
 536         (  (e) == LDAP_PROTOCOL_ERROR \
 537         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 538         || (e) == LDAP_UNAVAILABLE )
 539
 540         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 541
 542         rs->sr_type = REP_EXTENDED;
 543
 544         Debug( LDAP_DEBUG_TRACE,
 545                 "send_ldap_disconnect %d:%s\n",
 546                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 547
 548         if ( op->o_protocol < LDAP_VERSION3 ) {
 549                 rs->sr_rspoid = NULL;
 550                 rs->sr_tag = req2res( op->o_tag );
 551                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 552
 553         } else {
 554                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 555                 rs->sr_tag = LDAP_RES_EXTENDED;
 556                 rs->sr_msgid = 0;
 557         }
 558
 559         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 560                 Statslog( LDAP_DEBUG_STATS,
 561                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 562                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 563                         rs->sr_text ? rs->sr_text : "", 0 );
 564         }
 565 }
 566
 567 void
 568 slap_send_ldap_result( Operation *op, SlapReply *rs )
 569 {
 570         char *tmp = NULL;
 571         const char *otext = rs->sr_text;
 572         BerVarray oref = rs->sr_ref;
 573
 574         rs->sr_type = REP_RESULT;
 575
 576         /* Propagate Abandons so that cleanup callbacks can be processed */
 577         if ( rs->sr_err == SLAPD_ABANDON )
 578                 goto abandon;
 579
 580         assert( !LDAP_API_ERROR( rs->sr_err ));
 581
 582         Debug( LDAP_DEBUG_TRACE,
 583                 "send_ldap_result: %s p=%d\n",
 584                 op->o_log_prefix, op->o_protocol, 0 );
 585
 586         Debug( LDAP_DEBUG_ARGS,
 587                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 588                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 589                 rs->sr_text ? rs->sr_text : "" );
 590
 591
 592         if( rs->sr_ref ) {
 593                 Debug( LDAP_DEBUG_ARGS,
 594                         "send_ldap_result: referral=\"%s\"\n",
 595                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 596                         NULL, NULL );
 597         }
 598
 599         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 600
 601         if ( rs->sr_err == LDAP_REFERRAL ) {
 602 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 603                 if( op->o_domain_scope ) {
 604                         rs->sr_ref = NULL;
 605                 }
 606 #endif
 607                 if( rs->sr_ref == NULL ) {
 608                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 609                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 610                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 611                 }
 612         }
 613
 614 #ifdef LDAP_SLAPI
 615         /*
 616          * Call pre-result plugins. To avoid infinite recursion plugins
 617          * should just set SLAPI_RESULT_CODE rather than sending a
 618          * result if they wish to change the result.
 619          */
 620         if ( op->o_callback == NULL && op->o_pb != NULL ) {
 621                 slapi_int_pblock_set_operation( op->o_pb, op );
 622                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE,
 623                         (void *)rs->sr_err );
 624                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT,
 625                         (void *)rs->sr_text );
 626                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 627                         (void *)rs->sr_matched );
 628
 629                 (void) slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_PRE_RESULT_FN,
 630                         op->o_pb );
 631         }
 632 #endif /* LDAP_SLAPI */
 633
 634         if ( op->o_protocol < LDAP_VERSION3 ) {
 635                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 636                 rs->sr_text = tmp;
 637                 rs->sr_ref = NULL;
 638         }
 639
 640         rs->sr_tag = req2res( op->o_tag );
 641         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 642
 643 abandon:
 644         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 645                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 646                         char nbuf[64];
 647                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 648                                 rs->sr_err, rs->sr_nentries );
 649
 650                         Statslog( LDAP_DEBUG_STATS,
 651                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 652                                 op->o_log_prefix, rs->sr_tag, nbuf,
 653                                 rs->sr_text ? rs->sr_text : "", 0 );
 654                 } else {
 655                         Statslog( LDAP_DEBUG_STATS,
 656                                 "%s RESULT tag=%lu err=%d text=%s\n",
 657                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 658                                 rs->sr_text ? rs->sr_text : "", 0 );
 659                 }
 660         }
 661
 662         if( tmp != NULL ) ch_free(tmp);
 663         rs->sr_text = otext;
 664         rs->sr_ref = oref;
 665 }
 666
 667 void
 668 send_ldap_sasl( Operation *op, SlapReply *rs )
 669 {
 670         rs->sr_type = REP_SASL;
 671         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 672                 rs->sr_err,
 673                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 674
 675         rs->sr_tag = req2res( op->o_tag );
 676         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 677
 678         send_ldap_response( op, rs );
 679 }
 680
 681 void
 682 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 683 {
 684         rs->sr_type = REP_EXTENDED;
 685
 686         Debug( LDAP_DEBUG_TRACE,
 687                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 688                 rs->sr_err,
 689                 rs->sr_rspoid ? rs->sr_rspoid : "",
 690                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 691
 692         rs->sr_tag = req2res( op->o_tag );
 693         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 694
 695         send_ldap_response( op, rs );
 696 }
 697
 698 void
 699 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 700 {
 701         rs->sr_type = REP_INTERMEDIATE;
 702         Debug( LDAP_DEBUG_TRACE,
 703                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 704                 rs->sr_err,
 705                 rs->sr_rspoid ? rs->sr_rspoid : "",
 706                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 707         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 708         rs->sr_msgid = op->o_msgid;
 709         send_ldap_response( op, rs );
 710 }
 711
 712 int
 713 slap_send_search_entry( Operation *op, SlapReply *rs )
 714 {
 715         BerElementBuffer berbuf;
 716         BerElement      *ber = (BerElement *) &berbuf;
 717         Attribute       *a;
 718         int             i, j, rc=-1, bytes;
 719         char            *edn;
 720         int             userattrs;
 721         AccessControlState acl_state = ACL_STATE_INIT;
 722 #ifdef LDAP_SLAPI
 723         /* Support for computed attribute plugins */
 724         computed_attr_context    ctx;
 725         AttributeName   *anp;
 726 #endif
 727         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 728
 729         /* a_flags: array of flags telling if the i-th element will be
 730          *          returned or filtered out
 731          * e_flags: array of a_flags
 732          */
 733         char **e_flags = NULL;
 734
 735         rs->sr_type = REP_SEARCH;
 736
 737         /* eventually will loop through generated operational attribute types
 738          * currently implemented types include:
 739          *      entryDN, subschemaSubentry, and hasSubordinates */
 740         /* NOTE: moved before overlays callback circling because
 741          * they may modify entry and other stuff in rs */
 742         /* check for special all operational attributes ("+") type */
 743         /* FIXME: maybe we could se this flag at the operation level;
 744          * however, in principle the caller of send_search_entry() may
 745          * change the attribute list at each call */
 746         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 747
 748         rc = backend_operational( op, rs );
 749         if ( rc ) {
 750                 goto error_return;
 751         }
 752
 753         if ( op->o_callback ) {
 754                 int             first = 1;
 755                 slap_callback   *sc = op->o_callback,
 756                                 *sc_next = op->o_callback;
 757
 758                 rc = SLAP_CB_CONTINUE;
 759                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 760                         sc_next = op->o_callback->sc_next;
 761                         if ( op->o_callback->sc_response ) {
 762                                 rc = op->o_callback->sc_response( op, rs );
 763                                 if ( first && op->o_callback == NULL ) {
 764                                         sc = NULL;
 765                                 }
 766                                 if ( rc != SLAP_CB_CONTINUE ) break;
 767                         }
 768                         first = 0;
 769                 }
 770
 771                 op->o_callback = sc;
 772                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 773         }
 774
 775         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 776                 op->o_connid, rs->sr_entry->e_name.bv_val,
 777                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 778
 779         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 780                 Debug( LDAP_DEBUG_ACL,
 781                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 782                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 783
 784                 rc = 1;
 785                 goto error_return;
 786         }
 787
 788         edn = rs->sr_entry->e_nname.bv_val;
 789
 790         if ( op->o_res_ber ) {
 791                 /* read back control or LDAP_CONNECTIONLESS */
 792             ber = op->o_res_ber;
 793         } else {
 794                 ber_len_t       siz, len;
 795                 struct berval   bv;
 796
 797                 entry_flatsize( rs->sr_entry, &siz, &len, 0 );
 798                 bv.bv_len = siz + len;
 799                 bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
 800
 801                 ber_init2( ber, &bv, LBER_USE_DER );
 802                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 803         }
 804
 805 #ifdef LDAP_CONNECTIONLESS
 806         if ( op->o_conn && op->o_conn->c_is_udp ) {
 807                 /* CONNECTIONLESS */
 808                 if ( op->o_protocol == LDAP_VERSION2 ) {
 809                 rc = ber_printf(ber, "t{O{" /*}}*/,
 810                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 811                 } else {
 812                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 813                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 814                 }
 815         } else
 816 #endif
 817         if ( op->o_res_ber ) {
 818                 /* read back control */
 819             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 820         } else {
 821             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 822                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 823         }
 824
 825         if ( rc == -1 ) {
 826                 Debug( LDAP_DEBUG_ANY,
 827                         "send_search_entry: conn %lu  ber_printf failed\n",
 828                         op->o_connid, 0, 0 );
 829
 830                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 831                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 832                 goto error_return;
 833         }
 834
 835         /* check for special all user attributes ("*") type */
 836         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 837
 838         /* create an array of arrays of flags. Each flag corresponds
 839          * to particular value of attribute and equals 1 if value matches
 840          * to ValuesReturnFilter or 0 if not
 841          */
 842         if ( op->o_vrFilter != NULL ) {
 843                 int     k = 0;
 844                 size_t  size;
 845
 846                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 847                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 848                 }
 849
 850                 size = i * sizeof(char *) + k;
 851                 if ( size > 0 ) {
 852                         char    *a_flags;
 853                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 854                         if( e_flags == NULL ) {
 855                         Debug( LDAP_DEBUG_ANY,
 856                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 857                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 858                                 ber_free( ber, 1 );
 859
 860                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 861                                 goto error_return;
 862                         }
 863                         a_flags = (char *)(e_flags + i);
 864                         memset( a_flags, 0, k );
 865                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 866                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 867                                 e_flags[i] = a_flags;
 868                                 a_flags += j;
 869                         }
 870
 871                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 872                         if ( rc == -1 ) {
 873                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 874                                         "conn %lu matched values filtering failed\n",
 875                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 876                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 877                                 send_ldap_error( op, rs, LDAP_OTHER,
 878                                         "matched values filtering error" );
 879                                 goto error_return;
 880                         }
 881                 }
 882         }
 883
 884         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 885                 AttributeDescription *desc = a->a_desc;
 886                 int finish = 0;
 887
 888                 if ( rs->sr_attrs == NULL ) {
 889                         /* all attrs request, skip operational attributes */
 890                         if( is_at_operational( desc->ad_type ) ) {
 891                                 continue;
 892                         }
 893
 894                 } else {
 895                         /* specific attrs requested */
 896                         if ( is_at_operational( desc->ad_type ) ) {
 897                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 898                                                 !ad_inlist( desc, rs->sr_attrs ) )
 899                                 {
 900                                         continue;
 901                                 }
 902
 903                         } else {
 904                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) )
 905                                 {
 906                                         continue;
 907                                 }
 908                         }
 909                 }
 910
 911                 if ( op->ors_attrsonly ) {
 912                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 913                                 ACL_READ, &acl_state ) )
 914                         {
 915                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 916                                         "conn %lu access to attribute %s not allowed\n",
 917                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 918                                 continue;
 919                         }
 920
 921                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 922                                 Debug( LDAP_DEBUG_ANY,
 923                                         "send_search_entry: conn %lu  ber_printf failed\n",
 924                                         op->o_connid, 0, 0 );
 925
 926                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 927                                 send_ldap_error( op, rs, LDAP_OTHER,
 928                                         "encoding description error");
 929                                 goto error_return;
 930                         }
 931                         finish = 1;
 932
 933                 } else {
 934                         int first = 1;
 935                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 936                                 if ( ! access_allowed( op, rs->sr_entry,
 937                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 938                                 {
 939                                         Debug( LDAP_DEBUG_ACL,
 940                                                 "send_search_entry: conn %lu "
 941                                                 "access to attribute %s, value #%d not allowed\n",
 942                                                 op->o_connid, desc->ad_cname.bv_val, i );
 943
 944                                         continue;
 945                                 }
 946
 947                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 948                                         continue;
 949                                 }
 950
 951                                 if ( first ) {
 952                                         first = 0;
 953                                         finish = 1;
 954                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 955                                                 Debug( LDAP_DEBUG_ANY,
 956                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 957                                                         op->o_connid, 0, 0 );
 958
 959                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 960                                                 send_ldap_error( op, rs, LDAP_OTHER,
 961                                                         "encoding description error");
 962                                                 goto error_return;
 963                                         }
 964                                 }
 965                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 966                                         Debug( LDAP_DEBUG_ANY,
 967                                                 "send_search_entry: conn %lu  "
 968                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 969
 970                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 971                                         send_ldap_error( op, rs, LDAP_OTHER,
 972                                                 "encoding values error" );
 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                         goto error_return;
 986                 }
 987         }
 988
 989         /* NOTE: moved before overlays callback circling because
 990          * they may modify entry and other stuff in rs */
 991         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 992                 int     k = 0;
 993                 size_t  size;
 994
 995                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 996                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 997                 }
 998
 999                 size = i * sizeof(char *) + k;
1000                 if ( size > 0 ) {
1001                         char    *a_flags, **tmp;
1002
1003                         /*
1004                          * Reuse previous memory - we likely need less space
1005                          * for operational attributes
1006                          */
1007                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1008                                 op->o_tmpmemctx );
1009                         if ( tmp == NULL ) {
1010                                 Debug( LDAP_DEBUG_ANY,
1011                                         "send_search_entry: conn %lu "
1012                                         "not enough memory "
1013                                         "for matched values filtering\n",
1014                                         op->o_connid, 0, 0 );
1015                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1016                                 send_ldap_error( op, rs, LDAP_OTHER,
1017                                         "not enough memory for matched values filtering" );
1018                                 goto error_return;
1019                         }
1020                         e_flags = tmp;
1021                         a_flags = (char *)(e_flags + i);
1022                         memset( a_flags, 0, k );
1023                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1024                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1025                                 e_flags[i] = a_flags;
1026                                 a_flags += j;
1027                         }
1028                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1029
1030                         if ( rc == -1 ) {
1031                                 Debug( LDAP_DEBUG_ANY,
1032                                         "send_search_entry: conn %lu "
1033                                         "matched values filtering failed\n",
1034                                         op->o_connid ? op->o_connid : 0, 0, 0);
1035                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1036                                 send_ldap_error( op, rs, LDAP_OTHER,
1037                                         "matched values filtering error" );
1038                                 goto error_return;
1039                         }
1040                 }
1041         }
1042
1043         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1044                 AttributeDescription *desc = a->a_desc;
1045
1046                 if ( rs->sr_attrs == NULL ) {
1047                         /* all attrs request, skip operational attributes */
1048                         if( is_at_operational( desc->ad_type ) ) {
1049                                 continue;
1050                         }
1051
1052                 } else {
1053                         /* specific attrs requested */
1054                         if( is_at_operational( desc->ad_type ) ) {
1055                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1056                                                 !ad_inlist( desc, rs->sr_attrs ) )
1057                                 {
1058                                         continue;
1059                                 }
1060                         } else {
1061                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1062                                         continue;
1063                                 }
1064                         }
1065                 }
1066
1067                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1068                         ACL_READ, &acl_state ) )
1069                 {
1070                         Debug( LDAP_DEBUG_ACL,
1071                                 "send_search_entry: conn %lu "
1072                                 "access to attribute %s not allowed\n",
1073                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1074
1075                         continue;
1076                 }
1077
1078                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1079                 if ( rc == -1 ) {
1080                         Debug( LDAP_DEBUG_ANY,
1081                                 "send_search_entry: conn %lu  "
1082                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1083
1084                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1085                         send_ldap_error( op, rs, LDAP_OTHER,
1086                                 "encoding description error" );
1087                         goto error_return;
1088                 }
1089
1090                 if ( ! op->ors_attrsonly ) {
1091                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1092                                 if ( ! access_allowed( op, rs->sr_entry,
1093                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1094                                 {
1095                                         Debug( LDAP_DEBUG_ACL,
1096                                                 "send_search_entry: conn %lu "
1097                                                 "access to %s, value %d not allowed\n",
1098                                                 op->o_connid, desc->ad_cname.bv_val, i );
1099
1100                                         continue;
1101                                 }
1102
1103                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1104                                         continue;
1105                                 }
1106
1107                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1108                                         Debug( LDAP_DEBUG_ANY,
1109                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1110                                                 op->o_connid, 0, 0 );
1111
1112                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1113                                         send_ldap_error( op, rs, LDAP_OTHER,
1114                                                 "encoding values error" );
1115                                         goto error_return;
1116                                 }
1117                         }
1118                 }
1119
1120                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1121                         Debug( LDAP_DEBUG_ANY,
1122                                 "send_search_entry: conn %lu  ber_printf failed\n",
1123                                 op->o_connid, 0, 0 );
1124
1125                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1126                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1127                         goto error_return;
1128                 }
1129         }
1130
1131 #ifdef LDAP_SLAPI
1132         /*
1133          * First, setup the computed attribute context that is
1134          * passed to all plugins.
1135          */
1136         if ( op->o_pb ) {
1137                 ctx.cac_pb = op->o_pb;
1138                 ctx.cac_attrs = rs->sr_attrs;
1139                 ctx.cac_attrsonly = op->ors_attrsonly;
1140                 ctx.cac_userattrs = userattrs;
1141                 ctx.cac_opattrs = rs->sr_attr_flags;
1142                 ctx.cac_acl_state = acl_state;
1143                 ctx.cac_private = (void *)ber;
1144
1145                 /*
1146                  * For each client requested attribute, call the plugins.
1147                  */
1148                 if ( rs->sr_attrs != NULL ) {
1149                         for ( anp = rs->sr_attrs; anp->an_name.bv_val != NULL; anp++ ) {
1150                                 rc = compute_evaluator( &ctx, anp->an_name.bv_val,
1151                                         rs->sr_entry, slapi_int_compute_output_ber );
1152                                 if ( rc == 1 ) break;
1153                         }
1154                 } else {
1155                         /*
1156                          * Technically we shouldn't be returning operational attributes
1157                          * when the user requested only user attributes. We'll let the
1158                          * plugin decide whether to be naughty or not.
1159                          */
1160                         rc = compute_evaluator( &ctx, "*",
1161                                 rs->sr_entry, slapi_int_compute_output_ber );
1162                 }
1163                 if ( rc == 1 ) {
1164                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1165                         send_ldap_error( op, rs, LDAP_OTHER, "computed attribute error" );
1166                         goto error_return;
1167                 }
1168         }
1169 #endif /* LDAP_SLAPI */
1170
1171         /* free e_flags */
1172         if ( e_flags ) {
1173                 slap_sl_free( e_flags, op->o_tmpmemctx );
1174                 e_flags = NULL;
1175         }
1176
1177         rc = ber_printf( ber, /*{{*/ "}N}" );
1178
1179         if( rc != -1 ) {
1180                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1181         }
1182
1183         if( rc != -1 ) {
1184 #ifdef LDAP_CONNECTIONLESS
1185                 if( op->o_conn && op->o_conn->c_is_udp ) {
1186                         if ( op->o_protocol != LDAP_VERSION2 ) {
1187                                 rc = ber_printf( ber, /*{*/ "N}" );
1188                         }
1189                 } else
1190 #endif
1191                 if ( op->o_res_ber == NULL ) {
1192                         rc = ber_printf( ber, /*{*/ "N}" );
1193                 }
1194         }
1195
1196         if ( rc == -1 ) {
1197                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1198
1199                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1200                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1201                 rc = 1;
1202                 goto error_return;
1203         }
1204
1205         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1206                 be_entry_release_rw( op, rs->sr_entry, 0 );
1207                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1208                 rs->sr_entry = NULL;
1209         }
1210
1211         if ( op->o_res_ber == NULL ) {
1212                 bytes = send_ldap_ber( op->o_conn, ber );
1213                 ber_free_buf( ber );
1214
1215                 if ( bytes < 0 ) {
1216                         Debug( LDAP_DEBUG_ANY,
1217                                 "send_search_entry: conn %lu  ber write failed.\n",
1218                                 op->o_connid, 0, 0 );
1219
1220                         rc = -1;
1221                         goto error_return;
1222                 }
1223                 rs->sr_nentries++;
1224
1225                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1226                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1227                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1228                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1229                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1230         }
1231
1232         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1233             op->o_log_prefix, edn, 0, 0, 0 );
1234
1235         Debug( LDAP_DEBUG_TRACE,
1236                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1237
1238         rc = 0;
1239
1240 error_return:;
1241         if ( op->o_callback ) {
1242                 int             first = 1;
1243                 slap_callback   *sc = op->o_callback, *sc_next;
1244
1245                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1246                         sc_next = op->o_callback->sc_next;
1247                         if ( op->o_callback->sc_cleanup ) {
1248                                 (void)op->o_callback->sc_cleanup( op, rs );
1249                                 if ( first && op->o_callback != sc ) {
1250                                         sc = op->o_callback;
1251                                 }
1252                         }
1253                         first = 0;
1254                 }
1255                 op->o_callback = sc;
1256         }
1257
1258         if ( e_flags ) {
1259                 slap_sl_free( e_flags, op->o_tmpmemctx );
1260         }
1261
1262         if ( rs->sr_operational_attrs ) {
1263                 attrs_free( rs->sr_operational_attrs );
1264                 rs->sr_operational_attrs = NULL;
1265         }
1266         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1267
1268         /* FIXME: I think rs->sr_type should be explicitly set to
1269          * REP_SEARCH here. That's what it was when we entered this
1270          * function. send_ldap_error may have changed it, but we
1271          * should set it back so that the cleanup functions know
1272          * what they're doing.
1273          */
1274         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1275                 && rs->sr_entry
1276                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1277         {
1278                 entry_free( rs->sr_entry );
1279                 rs->sr_entry = NULL;
1280                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1281         }
1282
1283         return( rc );
1284 }
1285
1286 int
1287 slap_send_search_reference( Operation *op, SlapReply *rs )
1288 {
1289         BerElementBuffer berbuf;
1290         BerElement      *ber = (BerElement *) &berbuf;
1291         int rc = 0;
1292         int bytes;
1293
1294         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1295         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1296
1297         rs->sr_type = REP_SEARCHREF;
1298         if ( op->o_callback ) {
1299                 int             first = 1;
1300                 slap_callback   *sc = op->o_callback,
1301                                 *sc_next = op->o_callback;
1302
1303                 rc = SLAP_CB_CONTINUE;
1304                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1305                         sc_next = op->o_callback->sc_next;
1306                         if ( op->o_callback->sc_response ) {
1307                                 rc = op->o_callback->sc_response( op, rs );
1308                                 if ( first && op->o_callback == NULL ) {
1309                                         sc = NULL;
1310                                 }
1311                                 if ( rc != SLAP_CB_CONTINUE ) break;
1312                         }
1313                         first = 0;
1314                 }
1315
1316                 op->o_callback = sc;
1317                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1318         }
1319
1320         Debug( LDAP_DEBUG_TRACE,
1321                 "=> send_search_reference: dn=\"%s\"\n",
1322                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1323
1324         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1325                 ad_entry, NULL, ACL_READ, NULL ) )
1326         {
1327                 Debug( LDAP_DEBUG_ACL,
1328                         "send_search_reference: access to entry not allowed\n",
1329                     0, 0, 0 );
1330                 rc = 1;
1331                 goto rel;
1332         }
1333
1334         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1335                 ad_ref, NULL, ACL_READ, NULL ) )
1336         {
1337                 Debug( LDAP_DEBUG_ACL,
1338                         "send_search_reference: access "
1339                         "to reference not allowed\n",
1340                     0, 0, 0 );
1341                 rc = 1;
1342                 goto rel;
1343         }
1344
1345 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1346         if( op->o_domain_scope ) {
1347                 Debug( LDAP_DEBUG_ANY,
1348                         "send_search_reference: domainScope control in (%s)\n",
1349                         rs->sr_entry->e_dn, 0, 0 );
1350                 rc = 0;
1351                 goto rel;
1352         }
1353 #endif
1354
1355         if( rs->sr_ref == NULL ) {
1356                 Debug( LDAP_DEBUG_ANY,
1357                         "send_search_reference: null ref in (%s)\n",
1358                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1359                 rc = 1;
1360                 goto rel;
1361         }
1362
1363         if( op->o_protocol < LDAP_VERSION3 ) {
1364                 rc = 0;
1365                 /* save the references for the result */
1366                 if( rs->sr_ref[0].bv_val != NULL ) {
1367                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1368                                 rc = LDAP_OTHER;
1369                 }
1370                 goto rel;
1371         }
1372
1373 #ifdef LDAP_CONNECTIONLESS
1374         if( op->o_conn && op->o_conn->c_is_udp ) {
1375                 ber = op->o_res_ber;
1376         } else
1377 #endif
1378         {
1379                 ber_init_w_nullc( ber, LBER_USE_DER );
1380                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1381         }
1382
1383         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1384                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1385
1386         if( rc != -1 ) {
1387                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1388         }
1389
1390         if( rc != -1 ) {
1391                 rc = ber_printf( ber, /*"{"*/ "N}" );
1392         }
1393
1394         if ( rc == -1 ) {
1395                 Debug( LDAP_DEBUG_ANY,
1396                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1397
1398 #ifdef LDAP_CONNECTIONLESS
1399                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1400 #endif
1401                 ber_free_buf( ber );
1402                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1403                 goto rel;
1404         }
1405
1406         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1407                 be_entry_release_rw( op, rs->sr_entry, 0 );
1408                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1409                 rs->sr_entry = NULL;
1410         }
1411
1412 #ifdef LDAP_CONNECTIONLESS
1413         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1414 #endif
1415         bytes = send_ldap_ber( op->o_conn, ber );
1416         ber_free_buf( ber );
1417
1418         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1419         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1420         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1421         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1422         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1423 #ifdef LDAP_CONNECTIONLESS
1424         }
1425 #endif
1426
1427         Statslog( LDAP_DEBUG_STATS2, "%s REF dn=\"%s\"\n",
1428                 op->o_log_prefix, rs->sr_entry ? rs->sr_entry->e_dn : "(null)",
1429                 0, 0, 0 );
1430
1431         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1432
1433 rel:
1434         if ( op->o_callback ) {
1435                 int             first = 1;
1436                 slap_callback   *sc = op->o_callback, *sc_next;
1437
1438                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1439                         sc_next = op->o_callback->sc_next;
1440                         if ( op->o_callback->sc_cleanup ) {
1441                                 (void)op->o_callback->sc_cleanup( op, rs );
1442                                 if ( first && op->o_callback != sc ) {
1443                                         sc = op->o_callback;
1444                                 }
1445                         }
1446                         first = 0;
1447                 }
1448                 op->o_callback = sc;
1449         }
1450
1451         return rc;
1452 }
1453
1454 int
1455 str2result(
1456     char        *s,
1457     int         *code,
1458     char        **matched,
1459     char        **info )
1460 {
1461         int     rc;
1462         char    *c;
1463
1464         *code = LDAP_SUCCESS;
1465         *matched = NULL;
1466         *info = NULL;
1467
1468         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1469                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1470                     s, 0, 0 );
1471
1472                 return( -1 );
1473         }
1474
1475         rc = 0;
1476         while ( (s = strchr( s, '\n' )) != NULL ) {
1477                 *s++ = '\0';
1478                 if ( *s == '\0' ) {
1479                         break;
1480                 }
1481                 if ( (c = strchr( s, ':' )) != NULL ) {
1482                         c++;
1483                 }
1484
1485                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1486                         if ( c != NULL ) {
1487                                 *code = atoi( c );
1488                         }
1489                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1490                         if ( c != NULL ) {
1491                                 *matched = c;
1492                         }
1493                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1494                         if ( c != NULL ) {
1495                                 *info = c;
1496                         }
1497                 } else {
1498                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1499                             s, 0, 0 );
1500
1501                         rc = -1;
1502                 }
1503         }
1504
1505         return( rc );
1506 }
1507
1508 int slap_read_controls(
1509         Operation *op,
1510         SlapReply *rs,
1511         Entry *e,
1512         const struct berval *oid,
1513         LDAPControl **ctrl )
1514 {
1515         int rc;
1516         struct berval bv;
1517         BerElementBuffer berbuf;
1518         BerElement *ber = (BerElement *) &berbuf;
1519         LDAPControl c;
1520         ber_len_t       siz, len;
1521         Operation myop;
1522
1523         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1524                 oid->bv_val, e->e_dn, 0 );
1525
1526         rs->sr_entry = e;
1527         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1528                 op->o_preread_attrs : op->o_postread_attrs;
1529
1530         entry_flatsize( rs->sr_entry, &siz, &len, 0 );
1531         bv.bv_len = siz + len;
1532         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1533
1534         ber_init2( ber, &bv, LBER_USE_DER );
1535         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1536
1537         /* create new operation */
1538         myop = *op;
1539         myop.o_bd = NULL;
1540         myop.o_res_ber = ber;
1541
1542         rc = slap_send_search_entry( &myop, rs );
1543         if( rc ) return rc;
1544
1545         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1546
1547         if( rc == LBER_ERROR ) return LDAP_OTHER;
1548
1549         c.ldctl_oid = oid->bv_val;
1550         c.ldctl_iscritical = 0;
1551
1552         if ( ctrl == NULL ) {
1553                 /* first try */
1554                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1555         } else {
1556                 /* retry: free previous try */
1557                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1558         }
1559
1560         **ctrl = c;
1561         return LDAP_SUCCESS;
1562 }
1563
1564 /* Map API errors to protocol errors... */
1565 int
1566 slap_map_api2result( SlapReply *rs )
1567 {
1568         switch(rs->sr_err) {
1569         case LDAP_SERVER_DOWN:
1570                 return LDAP_UNAVAILABLE;
1571         case LDAP_LOCAL_ERROR:
1572                 return LDAP_OTHER;
1573         case LDAP_ENCODING_ERROR:
1574         case LDAP_DECODING_ERROR:
1575                 return LDAP_PROTOCOL_ERROR;
1576         case LDAP_TIMEOUT:
1577                 return LDAP_UNAVAILABLE;
1578         case LDAP_AUTH_UNKNOWN:
1579                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1580         case LDAP_FILTER_ERROR:
1581                 rs->sr_text = "Filter error";
1582                 return LDAP_OTHER;
1583         case LDAP_USER_CANCELLED:
1584                 rs->sr_text = "User cancelled";
1585                 return LDAP_OTHER;
1586         case LDAP_PARAM_ERROR:
1587                 return LDAP_PROTOCOL_ERROR;
1588         case LDAP_NO_MEMORY:
1589                 return LDAP_OTHER;
1590         case LDAP_CONNECT_ERROR:
1591                 return LDAP_UNAVAILABLE;
1592         case LDAP_NOT_SUPPORTED:
1593                 return LDAP_UNWILLING_TO_PERFORM;
1594         case LDAP_CONTROL_NOT_FOUND:
1595                 return LDAP_PROTOCOL_ERROR;
1596         case LDAP_NO_RESULTS_RETURNED:
1597                 return LDAP_NO_SUCH_OBJECT;
1598         case LDAP_MORE_RESULTS_TO_RETURN:
1599                 rs->sr_text = "More results to return";
1600                 return LDAP_OTHER;
1601         case LDAP_CLIENT_LOOP:
1602         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1603                 return LDAP_LOOP_DETECT;
1604         default:
1605                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1606                 return rs->sr_err;
1607         }
1608 }
1609
1610
1611 slap_mask_t
1612 slap_attr_flags( AttributeName *an )
1613 {
1614         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1615
1616         if ( an == NULL ) {
1617                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1618
1619         } else {
1620                 flags |= an_find( an, &AllOper )
1621                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1622                 flags |= an_find( an, &AllUser )
1623                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1624         }
1625
1626         return flags;
1627 }
1628