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 1998-2006 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/errno.h>
  33 #include <ac/string.h>
  34 #include <ac/ctype.h>
  35 #include <ac/time.h>
  36 #include <ac/unistd.h>
  37
  38 #include "slap.h"
  39
  40 const struct berval slap_dummy_bv = BER_BVNULL;
  41
  42 int slap_null_cb( Operation *op, SlapReply *rs )
  43 {
  44         return 0;
  45 }
  46
  47 int slap_freeself_cb( Operation *op, SlapReply *rs )
  48 {
  49         assert( op->o_callback != NULL );
  50
  51         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  52         op->o_callback = NULL;
  53
  54         return SLAP_CB_CONTINUE;
  55 }
  56
  57 int slap_replog_cb( Operation *op, SlapReply *rs )
  58 {
  59         if ( rs->sr_err == LDAP_SUCCESS ) {
  60                 replog( op );
  61         }
  62         return SLAP_CB_CONTINUE;
  63 }
  64
  65 static char *v2ref( BerVarray ref, const char *text )
  66 {
  67         size_t len = 0, i = 0;
  68         char *v2;
  69
  70         if(ref == NULL) {
  71                 if (text) {
  72                         return ch_strdup(text);
  73                 } else {
  74                         return NULL;
  75                 }
  76         }
  77
  78         if ( text != NULL ) {
  79                 len = strlen( text );
  80                 if (text[len-1] != '\n') {
  81                     i = 1;
  82                 }
  83         }
  84
  85         v2 = ch_malloc( len+i+sizeof("Referral:") );
  86
  87         if( text != NULL ) {
  88                 strcpy(v2, text);
  89                 if( i ) {
  90                         v2[len++] = '\n';
  91                 }
  92         }
  93         strcpy( v2+len, "Referral:" );
  94         len += sizeof("Referral:");
  95
  96         for( i=0; ref[i].bv_val != NULL; i++ ) {
  97                 v2 = ch_realloc( v2, len + ref[i].bv_len + 1 );
  98                 v2[len-1] = '\n';
  99                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
 100                 len += ref[i].bv_len;
 101                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
 102                         ++len;
 103                 }
 104         }
 105
 106         v2[len-1] = '\0';
 107         return v2;
 108 }
 109
 110 ber_tag_t
 111 slap_req2res( ber_tag_t tag )
 112 {
 113         switch( tag ) {
 114         case LDAP_REQ_ADD:
 115         case LDAP_REQ_BIND:
 116         case LDAP_REQ_COMPARE:
 117         case LDAP_REQ_EXTENDED:
 118         case LDAP_REQ_MODIFY:
 119         case LDAP_REQ_MODRDN:
 120                 tag++;
 121                 break;
 122
 123         case LDAP_REQ_DELETE:
 124                 tag = LDAP_RES_DELETE;
 125                 break;
 126
 127         case LDAP_REQ_ABANDON:
 128         case LDAP_REQ_UNBIND:
 129                 tag = LBER_SEQUENCE;
 130                 break;
 131
 132         case LDAP_REQ_SEARCH:
 133                 tag = LDAP_RES_SEARCH_RESULT;
 134                 break;
 135
 136         default:
 137                 tag = LBER_SEQUENCE;
 138         }
 139
 140         return tag;
 141 }
 142
 143 static long send_ldap_ber(
 144         Connection *conn,
 145         BerElement *ber )
 146 {
 147         ber_len_t bytes;
 148
 149         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 150
 151         /* write only one pdu at a time - wait til it's our turn */
 152         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 153
 154         /* lock the connection */
 155         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 156
 157         /* write the pdu */
 158         while( 1 ) {
 159                 int err;
 160                 ber_socket_t    sd;
 161
 162                 if ( connection_state_closing( conn ) ) {
 163                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 164                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 165
 166                         return 0;
 167                 }
 168
 169                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 170                         break;
 171                 }
 172
 173                 err = sock_errno();
 174
 175                 /*
 176                  * we got an error.  if it's ewouldblock, we need to
 177                  * wait on the socket being writable.  otherwise, figure
 178                  * it's a hard error and return.
 179                  */
 180
 181                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 182                     err, sock_errstr(err), 0 );
 183
 184                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 185                         connection_closing( conn, "connection lost on write" );
 186
 187                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 188                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 189
 190                         return( -1 );
 191                 }
 192
 193                 /* wait for socket to be write-ready */
 194                 conn->c_writewaiter = 1;
 195                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 196                 slapd_set_write( sd, 1 );
 197
 198                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 199                 conn->c_writewaiter = 0;
 200         }
 201
 202         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 203         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 204
 205         return bytes;
 206 }
 207
 208 static int
 209 send_ldap_control( BerElement *ber, LDAPControl *c )
 210 {
 211         int rc;
 212
 213         assert( c != NULL );
 214
 215         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 216
 217         if( c->ldctl_iscritical ) {
 218                 rc = ber_printf( ber, "b",
 219                         (ber_int_t) c->ldctl_iscritical ) ;
 220                 if( rc == -1 ) return rc;
 221         }
 222
 223         if( c->ldctl_value.bv_val != NULL ) {
 224                 rc = ber_printf( ber, "O", &c->ldctl_value );
 225                 if( rc == -1 ) return rc;
 226         }
 227
 228         rc = ber_printf( ber, /*{*/"N}" );
 229         if( rc == -1 ) return rc;
 230
 231         return 0;
 232 }
 233
 234 static int
 235 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 236 {
 237         int rc;
 238
 239         if( c == NULL )
 240                 return 0;
 241
 242         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 243         if( rc == -1 ) return rc;
 244
 245         for( ; *c != NULL; c++) {
 246                 rc = send_ldap_control( ber, *c );
 247                 if( rc == -1 ) return rc;
 248         }
 249
 250 #ifdef SLAP_SORTED_RESULTS
 251         /* this is a hack to avoid having to modify op->s_ctrls */
 252         if( o->o_sortedresults ) {
 253                 BerElementBuffer berbuf;
 254                 BerElement *sber = (BerElement *) &berbuf;
 255                 LDAPControl sorted;
 256                 BER_BVZERO( &sorted.ldctl_value );
 257                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 258                 sorted.ldctl_iscritical = 0;
 259
 260                 ber_init2( sber, NULL, LBER_USE_DER );
 261
 262                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 263
 264                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 265                         return -1;
 266                 }
 267
 268                 (void) ber_free_buf( ber );
 269
 270                 rc = send_ldap_control( ber, &sorted );
 271                 if( rc == -1 ) return rc;
 272         }
 273 #endif
 274
 275         rc = ber_printf( ber, /*{*/"N}" );
 276
 277         return rc;
 278 }
 279
 280 /*
 281  * slap_response_play()
 282  *
 283  * plays the callback list; rationale: a callback can
 284  *   - remove itself from the list, by setting op->o_callback = NULL;
 285  *     malloc()'ed callbacks should free themselves from inside the
 286  *     sc_response() function.
 287  *   - replace itself with another (list of) callback(s), by setting
 288  *     op->o_callback = a new (list of) callback(s); in this case, it
 289  *     is the callback's responsibility to to append existing subsequent
 290  *     callbacks to the end of the list that is passed to the sc_response()
 291  *     function.
 292  *   - modify the list of subsequent callbacks by modifying the value
 293  *     of the sc_next field from inside the sc_response() function; this
 294  *     case does not require any handling from inside slap_response_play()
 295  *
 296  * To stop execution of the playlist, the sc_response() function must return
 297  * a value different from SLAP_SC_CONTINUE.
 298  *
 299  * The same applies to slap_cleanup_play(); only, there is no means to stop
 300  * execution of the playlist, since all cleanup functions must be called.
 301  */
 302 static int
 303 slap_response_play(
 304         Operation *op,
 305         SlapReply *rs )
 306 {
 307         int rc;
 308
 309         slap_callback   *sc = op->o_callback, **scp;
 310
 311         rc = SLAP_CB_CONTINUE;
 312         for ( scp = &sc; *scp; ) {
 313                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 314
 315                 op->o_callback = *scp;
 316                 if ( op->o_callback->sc_response ) {
 317                         rc = op->o_callback->sc_response( op, rs );
 318                         if ( op->o_callback == NULL ) {
 319                                 /* the callback has been removed;
 320                                  * repair the list */
 321                                 *scp = sc_next;
 322                                 sc_nextp = scp;
 323
 324                         } else if ( op->o_callback != *scp ) {
 325                                 /* a new callback has been inserted
 326                                  * in place of the existing one; repair the list */
 327                                 *scp = op->o_callback;
 328                                 sc_nextp = scp;
 329                         }
 330                         if ( rc != SLAP_CB_CONTINUE ) break;
 331                 }
 332                 scp = sc_nextp;
 333         }
 334
 335         op->o_callback = sc;
 336         return rc;
 337 }
 338
 339 static int
 340 slap_cleanup_play(
 341         Operation *op,
 342         SlapReply *rs )
 343 {
 344         slap_callback   *sc = op->o_callback, **scp;
 345
 346         for ( scp = &sc; *scp; ) {
 347                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 348
 349                 op->o_callback = *scp;
 350                 if ( op->o_callback->sc_cleanup ) {
 351                         (void)op->o_callback->sc_cleanup( op, rs );
 352                         if ( op->o_callback == NULL ) {
 353                                 /* the callback has been removed;
 354                                  * repair the list */
 355                                 *scp = sc_next;
 356                                 sc_nextp = scp;
 357
 358                         } else if ( op->o_callback != *scp ) {
 359                                 /* a new callback has been inserted
 360                                  * after the existing one; repair the list */
 361                                 /* a new callback has been inserted
 362                                  * in place of the existing one; repair the list */
 363                                 *scp = op->o_callback;
 364                                 sc_nextp = scp;
 365                         }
 366                         /* don't care about the result; do all cleanup */
 367                 }
 368                 scp = sc_nextp;
 369         }
 370
 371         op->o_callback = sc;
 372         return LDAP_SUCCESS;
 373 }
 374
 375 static int
 376 send_ldap_response(
 377         Operation *op,
 378         SlapReply *rs )
 379 {
 380         BerElementBuffer berbuf;
 381         BerElement      *ber = (BerElement *) &berbuf;
 382         int             rc = LDAP_SUCCESS;
 383         long    bytes;
 384
 385         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 386                 rc = SLAPD_ABANDON;
 387                 goto clean2;
 388         }
 389
 390         if ( op->o_callback ) {
 391                 rc = slap_response_play( op, rs );
 392                 if ( rc != SLAP_CB_CONTINUE ) {
 393                         goto clean2;
 394                 }
 395         }
 396
 397 #ifdef LDAP_CONNECTIONLESS
 398         if (op->o_conn && op->o_conn->c_is_udp)
 399                 ber = op->o_res_ber;
 400         else
 401 #endif
 402         {
 403                 ber_init_w_nullc( ber, LBER_USE_DER );
 404                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 405         }
 406
 407         Debug( LDAP_DEBUG_TRACE,
 408                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 409                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 410
 411         if( rs->sr_ref ) {
 412                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 413                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 414                         NULL, NULL );
 415         }
 416
 417 #ifdef LDAP_CONNECTIONLESS
 418         if (op->o_conn && op->o_conn->c_is_udp &&
 419                 op->o_protocol == LDAP_VERSION2 )
 420         {
 421                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 422                         rs->sr_tag, rs->sr_err,
 423                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 424                 rs->sr_text == NULL ? "" : rs->sr_text );
 425         } else
 426 #endif
 427         if ( rs->sr_type == REP_INTERMEDIATE ) {
 428             rc = ber_printf( ber, "{it{" /*"}}"*/,
 429                         rs->sr_msgid, rs->sr_tag );
 430
 431         } else {
 432             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 433                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 434                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 435                 rs->sr_text == NULL ? "" : rs->sr_text );
 436         }
 437
 438         if( rc != -1 ) {
 439                 if ( rs->sr_ref != NULL ) {
 440                         assert( rs->sr_err == LDAP_REFERRAL );
 441                         rc = ber_printf( ber, "t{W}",
 442                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 443                 } else {
 444                         assert( rs->sr_err != LDAP_REFERRAL );
 445                 }
 446         }
 447
 448         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 449                 rc = ber_printf( ber, "tO",
 450                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 451         }
 452
 453         if( rc != -1 &&
 454                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 455         {
 456                 if ( rs->sr_rspoid != NULL ) {
 457                         rc = ber_printf( ber, "ts",
 458                                 rs->sr_type == REP_EXTENDED
 459                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 460                                 rs->sr_rspoid );
 461                 }
 462                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 463                         rc = ber_printf( ber, "tO",
 464                                 rs->sr_type == REP_EXTENDED
 465                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 466                                 rs->sr_rspdata );
 467                 }
 468         }
 469
 470         if( rc != -1 ) {
 471                 rc = ber_printf( ber, /*"{"*/ "N}" );
 472         }
 473
 474         if( rc != -1 ) {
 475                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 476         }
 477
 478         if( rc != -1 ) {
 479                 rc = ber_printf( ber, /*"{"*/ "N}" );
 480         }
 481
 482 #ifdef LDAP_CONNECTIONLESS
 483         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 484                 && rc != -1 )
 485         {
 486                 rc = ber_printf( ber, /*"{"*/ "N}" );
 487         }
 488 #endif
 489
 490         if ( rc == -1 ) {
 491                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 492
 493 #ifdef LDAP_CONNECTIONLESS
 494                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 495 #endif
 496                 {
 497                         ber_free_buf( ber );
 498                 }
 499                 goto cleanup;
 500         }
 501
 502         /* send BER */
 503         bytes = send_ldap_ber( op->o_conn, ber );
 504 #ifdef LDAP_CONNECTIONLESS
 505         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 506 #endif
 507         {
 508                 ber_free_buf( ber );
 509         }
 510
 511         if ( bytes < 0 ) {
 512                 Debug( LDAP_DEBUG_ANY,
 513                         "send_ldap_response: ber write failed\n",
 514                         0, 0, 0 );
 515
 516                 goto cleanup;
 517         }
 518
 519         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 520         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 521         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 522         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 523
 524 cleanup:;
 525         /* Tell caller that we did this for real, as opposed to being
 526          * overridden by a callback
 527          */
 528         rc = SLAP_CB_CONTINUE;
 529
 530 clean2:;
 531         if ( op->o_callback ) {
 532                 (void)slap_cleanup_play( op, rs );
 533         }
 534
 535         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 536                 free( (char *)rs->sr_matched );
 537                 rs->sr_matched = NULL;
 538         }
 539
 540         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 541                 ber_bvarray_free( rs->sr_ref );
 542                 rs->sr_ref = NULL;
 543         }
 544
 545         return rc;
 546 }
 547
 548
 549 void
 550 send_ldap_disconnect( Operation *op, SlapReply *rs )
 551 {
 552 #define LDAP_UNSOLICITED_ERROR(e) \
 553         (  (e) == LDAP_PROTOCOL_ERROR \
 554         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 555         || (e) == LDAP_UNAVAILABLE )
 556
 557         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 558
 559         rs->sr_type = REP_EXTENDED;
 560
 561         Debug( LDAP_DEBUG_TRACE,
 562                 "send_ldap_disconnect %d:%s\n",
 563                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 564
 565         if ( op->o_protocol < LDAP_VERSION3 ) {
 566                 rs->sr_rspoid = NULL;
 567                 rs->sr_tag = slap_req2res( op->o_tag );
 568                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 569
 570         } else {
 571                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 572                 rs->sr_tag = LDAP_RES_EXTENDED;
 573                 rs->sr_msgid = 0;
 574         }
 575
 576         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 577                 Statslog( LDAP_DEBUG_STATS,
 578                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 579                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 580                         rs->sr_text ? rs->sr_text : "", 0 );
 581         }
 582 }
 583
 584 void
 585 slap_send_ldap_result( Operation *op, SlapReply *rs )
 586 {
 587         char *tmp = NULL;
 588         const char *otext = rs->sr_text;
 589         BerVarray oref = rs->sr_ref;
 590
 591         rs->sr_type = REP_RESULT;
 592
 593         /* Propagate Abandons so that cleanup callbacks can be processed */
 594         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 595                 goto abandon;
 596
 597         assert( !LDAP_API_ERROR( rs->sr_err ) );
 598
 599         Debug( LDAP_DEBUG_TRACE,
 600                 "send_ldap_result: %s p=%d\n",
 601                 op->o_log_prefix, op->o_protocol, 0 );
 602
 603         Debug( LDAP_DEBUG_ARGS,
 604                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 605                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 606                 rs->sr_text ? rs->sr_text : "" );
 607
 608
 609         if( rs->sr_ref ) {
 610                 Debug( LDAP_DEBUG_ARGS,
 611                         "send_ldap_result: referral=\"%s\"\n",
 612                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 613                         NULL, NULL );
 614         }
 615
 616         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 617
 618         if ( rs->sr_err == LDAP_REFERRAL ) {
 619                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 620
 621                 if( rs->sr_ref == NULL ) {
 622                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 623                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 624                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 625                 }
 626         }
 627
 628         if ( op->o_protocol < LDAP_VERSION3 ) {
 629                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 630                 rs->sr_text = tmp;
 631                 rs->sr_ref = NULL;
 632         }
 633
 634         rs->sr_tag = slap_req2res( op->o_tag );
 635         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 636
 637 abandon:
 638         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 639                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 640                         char nbuf[64];
 641                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 642                                 rs->sr_err, rs->sr_nentries );
 643
 644                         Statslog( LDAP_DEBUG_STATS,
 645                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 646                                 op->o_log_prefix, rs->sr_tag, nbuf,
 647                                 rs->sr_text ? rs->sr_text : "", 0 );
 648                 } else {
 649                         Statslog( LDAP_DEBUG_STATS,
 650                                 "%s RESULT tag=%lu err=%d text=%s\n",
 651                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 652                                 rs->sr_text ? rs->sr_text : "", 0 );
 653                 }
 654         }
 655
 656         if( tmp != NULL ) ch_free(tmp);
 657         rs->sr_text = otext;
 658         rs->sr_ref = oref;
 659 }
 660
 661 void
 662 send_ldap_sasl( Operation *op, SlapReply *rs )
 663 {
 664         rs->sr_type = REP_SASL;
 665         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 666                 rs->sr_err,
 667                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 668
 669         rs->sr_tag = slap_req2res( op->o_tag );
 670         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 671
 672         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 673                 Statslog( LDAP_DEBUG_STATS,
 674                         "%s RESULT tag=%lu err=%d text=%s\n",
 675                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 676                         rs->sr_text ? rs->sr_text : "", 0 );
 677         }
 678 }
 679
 680 void
 681 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 682 {
 683         rs->sr_type = REP_EXTENDED;
 684
 685         Debug( LDAP_DEBUG_TRACE,
 686                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 687                 rs->sr_err,
 688                 rs->sr_rspoid ? rs->sr_rspoid : "",
 689                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 690
 691         rs->sr_tag = slap_req2res( op->o_tag );
 692         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 693
 694         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 695                 Statslog( LDAP_DEBUG_STATS,
 696                         "%s RESULT oid=%s err=%d text=%s\n",
 697                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 698                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 699         }
 700 }
 701
 702 void
 703 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 704 {
 705         rs->sr_type = REP_INTERMEDIATE;
 706         Debug( LDAP_DEBUG_TRACE,
 707                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 708                 rs->sr_err,
 709                 rs->sr_rspoid ? rs->sr_rspoid : "",
 710                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 711         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 712         rs->sr_msgid = op->o_msgid;
 713         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 714                 Statslog( LDAP_DEBUG_STATS2,
 715                         "%s INTERM oid=%s\n",
 716                         op->o_log_prefix,
 717                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 718         }
 719 }
 720
 721 /*
 722  * returns:
 723  *
 724  * LDAP_SUCCESS                 entry sent
 725  * LDAP_OTHER                   entry not sent (other)
 726  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 727  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 728  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 729  */
 730
 731 int
 732 slap_send_search_entry( Operation *op, SlapReply *rs )
 733 {
 734         BerElementBuffer berbuf;
 735         BerElement      *ber = (BerElement *) &berbuf;
 736         Attribute       *a;
 737         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 738         char            *edn;
 739         int             userattrs;
 740         AccessControlState acl_state = ACL_STATE_INIT;
 741         int                      attrsonly;
 742         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 743
 744         /* a_flags: array of flags telling if the i-th element will be
 745          *          returned or filtered out
 746          * e_flags: array of a_flags
 747          */
 748         char **e_flags = NULL;
 749
 750         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 751                 return LDAP_SIZELIMIT_EXCEEDED;
 752         }
 753
 754         rs->sr_type = REP_SEARCH;
 755
 756         /* eventually will loop through generated operational attribute types
 757          * currently implemented types include:
 758          *      entryDN, subschemaSubentry, and hasSubordinates */
 759         /* NOTE: moved before overlays callback circling because
 760          * they may modify entry and other stuff in rs */
 761         /* check for special all operational attributes ("+") type */
 762         /* FIXME: maybe we could set this flag at the operation level;
 763          * however, in principle the caller of send_search_entry() may
 764          * change the attribute list at each call */
 765         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 766
 767         rc = backend_operational( op, rs );
 768         if ( rc ) {
 769                 goto error_return;
 770         }
 771
 772         if ( op->o_callback ) {
 773                 rc = slap_response_play( op, rs );
 774                 if ( rc != SLAP_CB_CONTINUE ) {
 775                         goto error_return;
 776                 }
 777         }
 778
 779         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 780                 op->o_connid, rs->sr_entry->e_name.bv_val,
 781                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 782
 783         attrsonly = op->ors_attrsonly;
 784
 785         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 786                 Debug( LDAP_DEBUG_ACL,
 787                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 788                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 789
 790                 rc = LDAP_INSUFFICIENT_ACCESS;
 791                 goto error_return;
 792         }
 793
 794         edn = rs->sr_entry->e_nname.bv_val;
 795
 796         if ( op->o_res_ber ) {
 797                 /* read back control or LDAP_CONNECTIONLESS */
 798             ber = op->o_res_ber;
 799         } else {
 800                 struct berval   bv;
 801
 802                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 803                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 804
 805                 ber_init2( ber, &bv, LBER_USE_DER );
 806                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 807         }
 808
 809 #ifdef LDAP_CONNECTIONLESS
 810         if ( op->o_conn && op->o_conn->c_is_udp ) {
 811                 /* CONNECTIONLESS */
 812                 if ( op->o_protocol == LDAP_VERSION2 ) {
 813                 rc = ber_printf(ber, "t{O{" /*}}*/,
 814                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 815                 } else {
 816                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 817                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 818                 }
 819         } else
 820 #endif
 821         if ( op->o_res_ber ) {
 822                 /* read back control */
 823             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 824         } else {
 825             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 826                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 827         }
 828
 829         if ( rc == -1 ) {
 830                 Debug( LDAP_DEBUG_ANY,
 831                         "send_search_entry: conn %lu  ber_printf failed\n",
 832                         op->o_connid, 0, 0 );
 833
 834                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 835                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 836                 rc = rs->sr_err;
 837                 goto error_return;
 838         }
 839
 840         /* check for special all user attributes ("*") type */
 841         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 842
 843         /* create an array of arrays of flags. Each flag corresponds
 844          * to particular value of attribute and equals 1 if value matches
 845          * to ValuesReturnFilter or 0 if not
 846          */
 847         if ( op->o_vrFilter != NULL ) {
 848                 int     k = 0;
 849                 size_t  size;
 850
 851                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 852                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 853                 }
 854
 855                 size = i * sizeof(char *) + k;
 856                 if ( size > 0 ) {
 857                         char    *a_flags;
 858                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 859                         if( e_flags == NULL ) {
 860                         Debug( LDAP_DEBUG_ANY,
 861                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 862                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 863                                 ber_free( ber, 1 );
 864
 865                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 866                                 goto error_return;
 867                         }
 868                         a_flags = (char *)(e_flags + i);
 869                         memset( a_flags, 0, k );
 870                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 871                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 872                                 e_flags[i] = a_flags;
 873                                 a_flags += j;
 874                         }
 875
 876                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 877                         if ( rc == -1 ) {
 878                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 879                                         "conn %lu matched values filtering failed\n",
 880                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 881                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 882                                 send_ldap_error( op, rs, LDAP_OTHER,
 883                                         "matched values filtering error" );
 884                                 rc = rs->sr_err;
 885                                 goto error_return;
 886                         }
 887                 }
 888         }
 889
 890         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 891                 AttributeDescription *desc = a->a_desc;
 892                 int finish = 0;
 893
 894                 if ( rs->sr_attrs == NULL ) {
 895                         /* all user attrs request, skip operational attributes */
 896                         if( is_at_operational( desc->ad_type ) ) {
 897                                 continue;
 898                         }
 899
 900                 } else {
 901                         /* specific attrs requested */
 902                         if ( is_at_operational( desc->ad_type ) ) {
 903                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 904                                         !ad_inlist( desc, rs->sr_attrs ) )
 905                                 {
 906                                         continue;
 907                                 }
 908
 909                         } else {
 910                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 911                                         continue;
 912                                 }
 913                         }
 914                 }
 915
 916                 if ( attrsonly ) {
 917                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 918                                 ACL_READ, &acl_state ) )
 919                         {
 920                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 921                                         "conn %lu access to attribute %s not allowed\n",
 922                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 923                                 continue;
 924                         }
 925
 926                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 927                                 Debug( LDAP_DEBUG_ANY,
 928                                         "send_search_entry: conn %lu  ber_printf failed\n",
 929                                         op->o_connid, 0, 0 );
 930
 931                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 932                                 send_ldap_error( op, rs, LDAP_OTHER,
 933                                         "encoding description error");
 934                                 rc = rs->sr_err;
 935                                 goto error_return;
 936                         }
 937                         finish = 1;
 938
 939                 } else {
 940                         int first = 1;
 941                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 942                                 if ( ! access_allowed( op, rs->sr_entry,
 943                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 944                                 {
 945                                         Debug( LDAP_DEBUG_ACL,
 946                                                 "send_search_entry: conn %lu "
 947                                                 "access to attribute %s, value #%d not allowed\n",
 948                                                 op->o_connid, desc->ad_cname.bv_val, i );
 949
 950                                         continue;
 951                                 }
 952
 953                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 954                                         continue;
 955                                 }
 956
 957                                 if ( first ) {
 958                                         first = 0;
 959                                         finish = 1;
 960                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 961                                                 Debug( LDAP_DEBUG_ANY,
 962                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 963                                                         op->o_connid, 0, 0 );
 964
 965                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 966                                                 send_ldap_error( op, rs, LDAP_OTHER,
 967                                                         "encoding description error");
 968                                                 rc = rs->sr_err;
 969                                                 goto error_return;
 970                                         }
 971                                 }
 972                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 973                                         Debug( LDAP_DEBUG_ANY,
 974                                                 "send_search_entry: conn %lu  "
 975                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 976
 977                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 978                                         send_ldap_error( op, rs, LDAP_OTHER,
 979                                                 "encoding values error" );
 980                                         rc = rs->sr_err;
 981                                         goto error_return;
 982                                 }
 983                         }
 984                 }
 985
 986                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 987                         Debug( LDAP_DEBUG_ANY,
 988                                 "send_search_entry: conn %lu ber_printf failed\n",
 989                                 op->o_connid, 0, 0 );
 990
 991                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 992                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 993                         rc = rs->sr_err;
 994                         goto error_return;
 995                 }
 996         }
 997
 998         /* NOTE: moved before overlays callback circling because
 999          * they may modify entry and other stuff in rs */
1000         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1001                 int     k = 0;
1002                 size_t  size;
1003
1004                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1005                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1006                 }
1007
1008                 size = i * sizeof(char *) + k;
1009                 if ( size > 0 ) {
1010                         char    *a_flags, **tmp;
1011
1012                         /*
1013                          * Reuse previous memory - we likely need less space
1014                          * for operational attributes
1015                          */
1016                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1017                                 op->o_tmpmemctx );
1018                         if ( tmp == NULL ) {
1019                                 Debug( LDAP_DEBUG_ANY,
1020                                         "send_search_entry: conn %lu "
1021                                         "not enough memory "
1022                                         "for matched values filtering\n",
1023                                         op->o_connid, 0, 0 );
1024                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1025                                 send_ldap_error( op, rs, LDAP_OTHER,
1026                                         "not enough memory for matched values filtering" );
1027                                 goto error_return;
1028                         }
1029                         e_flags = tmp;
1030                         a_flags = (char *)(e_flags + i);
1031                         memset( a_flags, 0, k );
1032                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1033                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1034                                 e_flags[i] = a_flags;
1035                                 a_flags += j;
1036                         }
1037                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1038
1039                         if ( rc == -1 ) {
1040                                 Debug( LDAP_DEBUG_ANY,
1041                                         "send_search_entry: conn %lu "
1042                                         "matched values filtering failed\n",
1043                                         op->o_connid ? op->o_connid : 0, 0, 0);
1044                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1045                                 send_ldap_error( op, rs, LDAP_OTHER,
1046                                         "matched values filtering error" );
1047                                 rc = rs->sr_err;
1048                                 goto error_return;
1049                         }
1050                 }
1051         }
1052
1053         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1054                 AttributeDescription *desc = a->a_desc;
1055
1056                 if ( rs->sr_attrs == NULL ) {
1057                         /* all user attrs request, skip operational attributes */
1058                         if( is_at_operational( desc->ad_type ) ) {
1059                                 continue;
1060                         }
1061
1062                 } else {
1063                         /* specific attrs requested */
1064                         if( is_at_operational( desc->ad_type ) ) {
1065                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1066                                         !ad_inlist( desc, rs->sr_attrs ) )
1067                                 {
1068                                         continue;
1069                                 }
1070                         } else {
1071                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1072                                         continue;
1073                                 }
1074                         }
1075                 }
1076
1077                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1078                         ACL_READ, &acl_state ) )
1079                 {
1080                         Debug( LDAP_DEBUG_ACL,
1081                                 "send_search_entry: conn %lu "
1082                                 "access to attribute %s not allowed\n",
1083                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1084
1085                         continue;
1086                 }
1087
1088                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1089                 if ( rc == -1 ) {
1090                         Debug( LDAP_DEBUG_ANY,
1091                                 "send_search_entry: conn %lu  "
1092                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1093
1094                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1095                         send_ldap_error( op, rs, LDAP_OTHER,
1096                                 "encoding description error" );
1097                         rc = rs->sr_err;
1098                         goto error_return;
1099                 }
1100
1101                 if ( ! attrsonly ) {
1102                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1103                                 if ( ! access_allowed( op, rs->sr_entry,
1104                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1105                                 {
1106                                         Debug( LDAP_DEBUG_ACL,
1107                                                 "send_search_entry: conn %lu "
1108                                                 "access to %s, value %d not allowed\n",
1109                                                 op->o_connid, desc->ad_cname.bv_val, i );
1110
1111                                         continue;
1112                                 }
1113
1114                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1115                                         continue;
1116                                 }
1117
1118                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1119                                         Debug( LDAP_DEBUG_ANY,
1120                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1121                                                 op->o_connid, 0, 0 );
1122
1123                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1124                                         send_ldap_error( op, rs, LDAP_OTHER,
1125                                                 "encoding values error" );
1126                                         rc = rs->sr_err;
1127                                         goto error_return;
1128                                 }
1129                         }
1130                 }
1131
1132                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1133                         Debug( LDAP_DEBUG_ANY,
1134                                 "send_search_entry: conn %lu  ber_printf failed\n",
1135                                 op->o_connid, 0, 0 );
1136
1137                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1138                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1139                         rc = rs->sr_err;
1140                         goto error_return;
1141                 }
1142         }
1143
1144         /* free e_flags */
1145         if ( e_flags ) {
1146                 slap_sl_free( e_flags, op->o_tmpmemctx );
1147                 e_flags = NULL;
1148         }
1149
1150         rc = ber_printf( ber, /*{{*/ "}N}" );
1151
1152         if( rc != -1 ) {
1153                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1154         }
1155
1156         if( rc != -1 ) {
1157 #ifdef LDAP_CONNECTIONLESS
1158                 if( op->o_conn && op->o_conn->c_is_udp ) {
1159                         if ( op->o_protocol != LDAP_VERSION2 ) {
1160                                 rc = ber_printf( ber, /*{*/ "N}" );
1161                         }
1162                 } else
1163 #endif
1164                 if ( op->o_res_ber == NULL ) {
1165                         rc = ber_printf( ber, /*{*/ "N}" );
1166                 }
1167         }
1168
1169         if ( rc == -1 ) {
1170                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1171
1172                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1173                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1174                 rc = rs->sr_err;
1175                 goto error_return;
1176         }
1177
1178         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1179                 be_entry_release_rw( op, rs->sr_entry, 0 );
1180                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1181                 rs->sr_entry = NULL;
1182         }
1183
1184         if ( op->o_res_ber == NULL ) {
1185                 bytes = send_ldap_ber( op->o_conn, ber );
1186                 ber_free_buf( ber );
1187
1188                 if ( bytes < 0 ) {
1189                         Debug( LDAP_DEBUG_ANY,
1190                                 "send_search_entry: conn %lu  ber write failed.\n",
1191                                 op->o_connid, 0, 0 );
1192
1193                         rc = LDAP_UNAVAILABLE;
1194                         goto error_return;
1195                 }
1196                 rs->sr_nentries++;
1197
1198                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1199                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1200                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1201                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1202                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1203         }
1204
1205         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1206             op->o_log_prefix, edn, 0, 0, 0 );
1207
1208         Debug( LDAP_DEBUG_TRACE,
1209                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1210
1211         rc = LDAP_SUCCESS;
1212
1213 error_return:;
1214         if ( op->o_callback ) {
1215                 (void)slap_cleanup_play( op, rs );
1216         }
1217
1218         if ( e_flags ) {
1219                 slap_sl_free( e_flags, op->o_tmpmemctx );
1220         }
1221
1222         if ( rs->sr_operational_attrs ) {
1223                 attrs_free( rs->sr_operational_attrs );
1224                 rs->sr_operational_attrs = NULL;
1225         }
1226         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1227
1228         /* FIXME: I think rs->sr_type should be explicitly set to
1229          * REP_SEARCH here. That's what it was when we entered this
1230          * function. send_ldap_error may have changed it, but we
1231          * should set it back so that the cleanup functions know
1232          * what they're doing.
1233          */
1234         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1235                 && rs->sr_entry
1236                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1237         {
1238                 entry_free( rs->sr_entry );
1239                 rs->sr_entry = NULL;
1240                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1241         }
1242
1243         return( rc );
1244 }
1245
1246 int
1247 slap_send_search_reference( Operation *op, SlapReply *rs )
1248 {
1249         BerElementBuffer berbuf;
1250         BerElement      *ber = (BerElement *) &berbuf;
1251         int rc = 0;
1252         int bytes;
1253
1254         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1255         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1256
1257         rs->sr_type = REP_SEARCHREF;
1258         if ( op->o_callback ) {
1259                 rc = slap_response_play( op, rs );
1260                 if ( rc != SLAP_CB_CONTINUE ) {
1261                         goto rel;
1262                 }
1263         }
1264
1265         Debug( LDAP_DEBUG_TRACE,
1266                 "=> send_search_reference: dn=\"%s\"\n",
1267                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1268
1269         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1270                 ad_entry, NULL, ACL_READ, NULL ) )
1271         {
1272                 Debug( LDAP_DEBUG_ACL,
1273                         "send_search_reference: access to entry not allowed\n",
1274                     0, 0, 0 );
1275                 rc = 1;
1276                 goto rel;
1277         }
1278
1279         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1280                 ad_ref, NULL, ACL_READ, NULL ) )
1281         {
1282                 Debug( LDAP_DEBUG_ACL,
1283                         "send_search_reference: access "
1284                         "to reference not allowed\n",
1285                     0, 0, 0 );
1286                 rc = 1;
1287                 goto rel;
1288         }
1289
1290         if( op->o_domain_scope ) {
1291                 Debug( LDAP_DEBUG_ANY,
1292                         "send_search_reference: domainScope control in (%s)\n",
1293                         rs->sr_entry->e_dn, 0, 0 );
1294                 rc = 0;
1295                 goto rel;
1296         }
1297
1298         if( rs->sr_ref == NULL ) {
1299                 Debug( LDAP_DEBUG_ANY,
1300                         "send_search_reference: null ref in (%s)\n",
1301                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1302                 rc = 1;
1303                 goto rel;
1304         }
1305
1306         if( op->o_protocol < LDAP_VERSION3 ) {
1307                 rc = 0;
1308                 /* save the references for the result */
1309                 if( rs->sr_ref[0].bv_val != NULL ) {
1310                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1311                                 rc = LDAP_OTHER;
1312                 }
1313                 goto rel;
1314         }
1315
1316 #ifdef LDAP_CONNECTIONLESS
1317         if( op->o_conn && op->o_conn->c_is_udp ) {
1318                 ber = op->o_res_ber;
1319         } else
1320 #endif
1321         {
1322                 ber_init_w_nullc( ber, LBER_USE_DER );
1323                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1324         }
1325
1326         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1327                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1328
1329         if( rc != -1 ) {
1330                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1331         }
1332
1333         if( rc != -1 ) {
1334                 rc = ber_printf( ber, /*"{"*/ "N}" );
1335         }
1336
1337         if ( rc == -1 ) {
1338                 Debug( LDAP_DEBUG_ANY,
1339                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1340
1341 #ifdef LDAP_CONNECTIONLESS
1342                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1343 #endif
1344                 ber_free_buf( ber );
1345                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1346                 goto rel;
1347         }
1348
1349         rc = 0;
1350         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1351                 be_entry_release_rw( op, rs->sr_entry, 0 );
1352                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1353                 rs->sr_entry = NULL;
1354         }
1355
1356 #ifdef LDAP_CONNECTIONLESS
1357         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1358 #endif
1359         bytes = send_ldap_ber( op->o_conn, ber );
1360         ber_free_buf( ber );
1361
1362         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1363         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1364         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1365         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1366         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1367 #ifdef LDAP_CONNECTIONLESS
1368         }
1369 #endif
1370         if ( rs->sr_ref != NULL ) {
1371                 int     r;
1372
1373                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1374                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1375                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1376                                 0, 0 );
1377                 }
1378
1379         } else {
1380                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1381                         op->o_log_prefix, 0, 0, 0, 0 );
1382         }
1383
1384         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1385
1386 rel:
1387         if ( op->o_callback ) {
1388                 (void)slap_cleanup_play( op, rs );
1389         }
1390
1391         return rc;
1392 }
1393
1394 int
1395 str2result(
1396     char        *s,
1397     int         *code,
1398     char        **matched,
1399     char        **info )
1400 {
1401         int     rc;
1402         char    *c;
1403
1404         *code = LDAP_SUCCESS;
1405         *matched = NULL;
1406         *info = NULL;
1407
1408         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1409                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1410                     s, 0, 0 );
1411
1412                 return( -1 );
1413         }
1414
1415         rc = 0;
1416         while ( (s = strchr( s, '\n' )) != NULL ) {
1417                 *s++ = '\0';
1418                 if ( *s == '\0' ) {
1419                         break;
1420                 }
1421                 if ( (c = strchr( s, ':' )) != NULL ) {
1422                         c++;
1423                 }
1424
1425                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1426                         char    *next = NULL;
1427                         long    retcode;
1428
1429                         if ( c == NULL ) {
1430                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1431                                     s, 0, 0 );
1432                                 rc = -1;
1433                                 continue;
1434                         }
1435
1436                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1437                         if ( c[ 0 ] == '\0' ) {
1438                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1439                                     s, 0, 0 );
1440                                 rc = -1;
1441                                 continue;
1442                         }
1443
1444                         retcode = strtol( c, &next, 10 );
1445                         if ( next == NULL || next == c ) {
1446                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1447                                     s, 0, 0 );
1448                                 rc = -1;
1449                                 continue;
1450                         }
1451
1452                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1453                         if ( next[ 0 ] != '\0' ) {
1454                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1455                                     s, 0, 0 );
1456                                 rc = -1;
1457                                 continue;
1458                         }
1459
1460                         /* FIXME: what if it's larger that max int? */
1461                         *code = (int)retcode;
1462
1463                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1464                         if ( c != NULL ) {
1465                                 *matched = c;
1466                         }
1467                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1468                         if ( c != NULL ) {
1469                                 *info = c;
1470                         }
1471                 } else {
1472                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1473                             s, 0, 0 );
1474
1475                         rc = -1;
1476                 }
1477         }
1478
1479         return( rc );
1480 }
1481
1482 int slap_read_controls(
1483         Operation *op,
1484         SlapReply *rs,
1485         Entry *e,
1486         const struct berval *oid,
1487         LDAPControl **ctrl )
1488 {
1489         int rc;
1490         struct berval bv;
1491         BerElementBuffer berbuf;
1492         BerElement *ber = (BerElement *) &berbuf;
1493         LDAPControl c;
1494         Operation myop;
1495
1496         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1497                 oid->bv_val, e->e_dn, 0 );
1498
1499         rs->sr_entry = e;
1500         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1501                 op->o_preread_attrs : op->o_postread_attrs;
1502
1503         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1504         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1505
1506         ber_init2( ber, &bv, LBER_USE_DER );
1507         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1508
1509         /* create new operation */
1510         myop = *op;
1511         myop.o_bd = NULL;
1512         myop.o_res_ber = ber;
1513         myop.o_callback = NULL;
1514         myop.ors_slimit = 1;
1515
1516         rc = slap_send_search_entry( &myop, rs );
1517         if( rc ) return rc;
1518
1519         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1520
1521         if( rc == LBER_ERROR ) return LDAP_OTHER;
1522
1523         c.ldctl_oid = oid->bv_val;
1524         c.ldctl_iscritical = 0;
1525
1526         if ( *ctrl == NULL ) {
1527                 /* first try */
1528                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1529         } else {
1530                 /* retry: free previous try */
1531                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1532         }
1533
1534         **ctrl = c;
1535         return LDAP_SUCCESS;
1536 }
1537
1538 /* Map API errors to protocol errors... */
1539 int
1540 slap_map_api2result( SlapReply *rs )
1541 {
1542         switch(rs->sr_err) {
1543         case LDAP_SERVER_DOWN:
1544                 return LDAP_UNAVAILABLE;
1545         case LDAP_LOCAL_ERROR:
1546                 return LDAP_OTHER;
1547         case LDAP_ENCODING_ERROR:
1548         case LDAP_DECODING_ERROR:
1549                 return LDAP_PROTOCOL_ERROR;
1550         case LDAP_TIMEOUT:
1551                 return LDAP_UNAVAILABLE;
1552         case LDAP_AUTH_UNKNOWN:
1553                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1554         case LDAP_FILTER_ERROR:
1555                 rs->sr_text = "Filter error";
1556                 return LDAP_OTHER;
1557         case LDAP_USER_CANCELLED:
1558                 rs->sr_text = "User cancelled";
1559                 return LDAP_OTHER;
1560         case LDAP_PARAM_ERROR:
1561                 return LDAP_PROTOCOL_ERROR;
1562         case LDAP_NO_MEMORY:
1563                 return LDAP_OTHER;
1564         case LDAP_CONNECT_ERROR:
1565                 return LDAP_UNAVAILABLE;
1566         case LDAP_NOT_SUPPORTED:
1567                 return LDAP_UNWILLING_TO_PERFORM;
1568         case LDAP_CONTROL_NOT_FOUND:
1569                 return LDAP_PROTOCOL_ERROR;
1570         case LDAP_NO_RESULTS_RETURNED:
1571                 return LDAP_NO_SUCH_OBJECT;
1572         case LDAP_MORE_RESULTS_TO_RETURN:
1573                 rs->sr_text = "More results to return";
1574                 return LDAP_OTHER;
1575         case LDAP_CLIENT_LOOP:
1576         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1577                 return LDAP_LOOP_DETECT;
1578         default:
1579                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1580                 return rs->sr_err;
1581         }
1582 }
1583
1584
1585 slap_mask_t
1586 slap_attr_flags( AttributeName *an )
1587 {
1588         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1589
1590         if ( an == NULL ) {
1591                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1592
1593         } else {
1594                 flags |= an_find( an, &AllOper )
1595                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1596                 flags |= an_find( an, &AllUser )
1597                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1598         }
1599
1600         return flags;
1601 }
1602