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 #include "lutil.h"
  40
  41 const struct berval slap_dummy_bv = BER_BVNULL;
  42
  43 int slap_null_cb( Operation *op, SlapReply *rs )
  44 {
  45         return 0;
  46 }
  47
  48 int slap_freeself_cb( Operation *op, SlapReply *rs )
  49 {
  50         assert( op->o_callback != NULL );
  51
  52         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  53         op->o_callback = NULL;
  54
  55         return SLAP_CB_CONTINUE;
  56 }
  57
  58 int slap_replog_cb( Operation *op, SlapReply *rs )
  59 {
  60         if ( rs->sr_err == LDAP_SUCCESS ) {
  61                 replog( op );
  62         }
  63         return SLAP_CB_CONTINUE;
  64 }
  65
  66 static char *v2ref( BerVarray ref, const char *text )
  67 {
  68         size_t len = 0, i = 0;
  69         char *v2;
  70
  71         if(ref == NULL) {
  72                 if (text) {
  73                         return ch_strdup(text);
  74                 } else {
  75                         return NULL;
  76                 }
  77         }
  78
  79         if ( text != NULL ) {
  80                 len = strlen( text );
  81                 if (text[len-1] != '\n') {
  82                     i = 1;
  83                 }
  84         }
  85
  86         v2 = SLAP_MALLOC( len+i+sizeof("Referral:") );
  87         if( v2 == NULL ) {
  88                 Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
  89                 return NULL;
  90         }
  91
  92         if( text != NULL ) {
  93                 strcpy(v2, text);
  94                 if( i ) {
  95                         v2[len++] = '\n';
  96                 }
  97         }
  98         strcpy( v2+len, "Referral:" );
  99         len += sizeof("Referral:");
 100
 101         for( i=0; ref[i].bv_val != NULL; i++ ) {
 102                 v2 = SLAP_REALLOC( v2, len + ref[i].bv_len + 1 );
 103                 if( v2 == NULL ) {
 104                         Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
 105                         return NULL;
 106                 }
 107                 v2[len-1] = '\n';
 108                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
 109                 len += ref[i].bv_len;
 110                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
 111                         ++len;
 112                 }
 113         }
 114
 115         v2[len-1] = '\0';
 116         return v2;
 117 }
 118
 119 ber_tag_t
 120 slap_req2res( ber_tag_t tag )
 121 {
 122         switch( tag ) {
 123         case LDAP_REQ_ADD:
 124         case LDAP_REQ_BIND:
 125         case LDAP_REQ_COMPARE:
 126         case LDAP_REQ_EXTENDED:
 127         case LDAP_REQ_MODIFY:
 128         case LDAP_REQ_MODRDN:
 129                 tag++;
 130                 break;
 131
 132         case LDAP_REQ_DELETE:
 133                 tag = LDAP_RES_DELETE;
 134                 break;
 135
 136         case LDAP_REQ_ABANDON:
 137         case LDAP_REQ_UNBIND:
 138                 tag = LBER_SEQUENCE;
 139                 break;
 140
 141         case LDAP_REQ_SEARCH:
 142                 tag = LDAP_RES_SEARCH_RESULT;
 143                 break;
 144
 145         default:
 146                 tag = LBER_SEQUENCE;
 147         }
 148
 149         return tag;
 150 }
 151
 152 static long send_ldap_ber(
 153         Connection *conn,
 154         BerElement *ber )
 155 {
 156         ber_len_t bytes;
 157
 158         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 159
 160         /* write only one pdu at a time - wait til it's our turn */
 161         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 162
 163         /* lock the connection */
 164         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 165
 166         /* write the pdu */
 167         while( 1 ) {
 168                 int err;
 169                 ber_socket_t    sd;
 170
 171                 if ( connection_state_closing( conn ) ) {
 172                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 173                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 174
 175                         return 0;
 176                 }
 177
 178                 if ( ber_flush( conn->c_sb, ber, 0 ) == 0 ) {
 179                         break;
 180                 }
 181
 182                 err = errno;
 183
 184                 /*
 185                  * we got an error.  if it's ewouldblock, we need to
 186                  * wait on the socket being writable.  otherwise, figure
 187                  * it's a hard error and return.
 188                  */
 189
 190                 Debug( LDAP_DEBUG_CONNS, "ber_flush failed errno=%d reason=\"%s\"\n",
 191                     err, sock_errstr(err), 0 );
 192
 193                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 194                         connection_closing( conn, "connection lost on write" );
 195
 196                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 197                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 198
 199                         return( -1 );
 200                 }
 201
 202                 /* wait for socket to be write-ready */
 203                 conn->c_writewaiter = 1;
 204                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 205                 slapd_set_write( sd, 1 );
 206
 207                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 208                 conn->c_writewaiter = 0;
 209         }
 210
 211         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 212         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 213
 214         return bytes;
 215 }
 216
 217 static int
 218 send_ldap_control( BerElement *ber, LDAPControl *c )
 219 {
 220         int rc;
 221
 222         assert( c != NULL );
 223
 224         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 225
 226         if( c->ldctl_iscritical ) {
 227                 rc = ber_printf( ber, "b",
 228                         (ber_int_t) c->ldctl_iscritical ) ;
 229                 if( rc == -1 ) return rc;
 230         }
 231
 232         if( c->ldctl_value.bv_val != NULL ) {
 233                 rc = ber_printf( ber, "O", &c->ldctl_value );
 234                 if( rc == -1 ) return rc;
 235         }
 236
 237         rc = ber_printf( ber, /*{*/"N}" );
 238         if( rc == -1 ) return rc;
 239
 240         return 0;
 241 }
 242
 243 static int
 244 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 245 {
 246         int rc;
 247
 248         if( c == NULL )
 249                 return 0;
 250
 251         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 252         if( rc == -1 ) return rc;
 253
 254         for( ; *c != NULL; c++) {
 255                 rc = send_ldap_control( ber, *c );
 256                 if( rc == -1 ) return rc;
 257         }
 258
 259 #ifdef LDAP_DEVEL
 260         /* this is a hack to avoid having to modify op->s_ctrls */
 261         if( o->o_sortedresults ) {
 262                 BerElementBuffer berbuf;
 263                 BerElement *sber = (BerElement *) &berbuf;
 264                 LDAPControl sorted;
 265                 BER_BVZERO( &sorted.ldctl_value );
 266                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 267                 sorted.ldctl_iscritical = 0;
 268
 269                 ber_init2( sber, NULL, LBER_USE_DER );
 270
 271                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 272
 273                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 274                         return -1;
 275                 }
 276
 277                 (void) ber_free_buf( ber );
 278
 279                 rc = send_ldap_control( ber, &sorted );
 280                 if( rc == -1 ) return rc;
 281         }
 282 #endif
 283
 284         rc = ber_printf( ber, /*{*/"N}" );
 285
 286         return rc;
 287 }
 288
 289 /*
 290  * slap_response_play()
 291  *
 292  * plays the callback list; rationale: a callback can
 293  *   - remove itself from the list, by setting op->o_callback = NULL;
 294  *     malloc()'ed callbacks should free themselves from inside the
 295  *     sc_response() function.
 296  *   - replace itself with another (list of) callback(s), by setting
 297  *     op->o_callback = a new (list of) callback(s); in this case, it
 298  *     is the callback's responsibility to to append existing subsequent
 299  *     callbacks to the end of the list that is passed to the sc_response()
 300  *     function.
 301  *   - modify the list of subsequent callbacks by modifying the value
 302  *     of the sc_next field from inside the sc_response() function; this
 303  *     case does not require any handling from inside slap_response_play()
 304  *
 305  * To stop execution of the playlist, the sc_response() function must return
 306  * a value different from SLAP_SC_CONTINUE.
 307  *
 308  * The same applies to slap_cleanup_play(); only, there is no means to stop
 309  * execution of the playlist, since all cleanup functions must be called.
 310  */
 311 static int
 312 slap_response_play(
 313         Operation *op,
 314         SlapReply *rs )
 315 {
 316         int rc;
 317
 318 #ifdef LDAP_DEVEL
 319         slap_callback   *sc = op->o_callback, **scp;
 320
 321         rc = SLAP_CB_CONTINUE;
 322         for ( scp = &sc; *scp; ) {
 323                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 324
 325                 op->o_callback = *scp;
 326                 if ( op->o_callback->sc_response ) {
 327                         rc = op->o_callback->sc_response( op, rs );
 328                         if ( op->o_callback == NULL ) {
 329                                 /* the callback has been removed;
 330                                  * repair the list */
 331                                 *scp = sc_next;
 332                                 sc_nextp = scp;
 333
 334                         } else if ( op->o_callback != *scp ) {
 335                                 /* a new callback has been inserted
 336                                  * in place of the existing one; repair the list */
 337                                 *scp = op->o_callback;
 338                                 sc_nextp = scp;
 339                         }
 340                         if ( rc != SLAP_CB_CONTINUE ) break;
 341                 }
 342                 scp = sc_nextp;
 343         }
 344
 345         op->o_callback = sc;
 346 #else /* ! LDAP_DEVEL */
 347         slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 348
 349         rc = SLAP_CB_CONTINUE;
 350         for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 351                 sc_next = op->o_callback->sc_next;
 352                 if ( op->o_callback->sc_response ) {
 353                         slap_callback *sc2 = op->o_callback;
 354                         rc = op->o_callback->sc_response( op, rs );
 355                         if ( op->o_callback != sc2 ) {
 356                                 *sc_prev = op->o_callback;
 357                         }
 358                         if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 359                         if ( op->o_callback != sc2 ) continue;
 360                 }
 361                 sc_prev = &op->o_callback->sc_next;
 362         }
 363
 364         op->o_callback = sc;
 365 #endif /* ! LDAP_DEVEL */
 366
 367         return rc;
 368 }
 369
 370 static int
 371 slap_cleanup_play(
 372         Operation *op,
 373         SlapReply *rs )
 374 {
 375 #ifdef LDAP_DEVEL
 376         slap_callback   *sc = op->o_callback, **scp;
 377
 378         for ( scp = &sc; *scp; ) {
 379                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 380
 381                 op->o_callback = *scp;
 382                 if ( op->o_callback->sc_cleanup ) {
 383                         (void)op->o_callback->sc_cleanup( op, rs );
 384                         if ( op->o_callback == NULL ) {
 385                                 /* the callback has been removed;
 386                                  * repair the list */
 387                                 *scp = sc_next;
 388                                 sc_nextp = scp;
 389
 390                         } else if ( op->o_callback != *scp ) {
 391                                 /* a new callback has been inserted
 392                                  * after the existing one; repair the list */
 393                                 /* a new callback has been inserted
 394                                  * in place of the existing one; repair the list */
 395                                 *scp = op->o_callback;
 396                                 sc_nextp = scp;
 397                         }
 398                         /* don't care about the result; do all cleanup */
 399                 }
 400                 scp = sc_nextp;
 401         }
 402
 403         op->o_callback = sc;
 404 #else /* ! LDAP_DEVEL */
 405         slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 406
 407         for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 408                 sc_next = op->o_callback->sc_next;
 409                 if ( op->o_callback->sc_cleanup ) {
 410                         slap_callback *sc2 = op->o_callback;
 411                         (void)op->o_callback->sc_cleanup( op, rs );
 412                         if ( op->o_callback != sc2 ) {
 413                                 *sc_prev = op->o_callback;
 414                         }
 415                         if ( !op->o_callback ) break;
 416                         if ( op->o_callback != sc2 ) continue;
 417                 }
 418                 sc_prev = &op->o_callback->sc_next;
 419         }
 420
 421         op->o_callback = sc;
 422 #endif /* ! LDAP_DEVEL */
 423
 424         return LDAP_SUCCESS;
 425 }
 426
 427 static int
 428 send_ldap_response(
 429         Operation *op,
 430         SlapReply *rs )
 431 {
 432         BerElementBuffer berbuf;
 433         BerElement      *ber = (BerElement *) &berbuf;
 434         int             rc = LDAP_SUCCESS;
 435         long    bytes;
 436
 437         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 438                 rc = SLAPD_ABANDON;
 439                 goto clean2;
 440         }
 441
 442         if ( op->o_callback ) {
 443                 rc = slap_response_play( op, rs );
 444                 if ( rc != SLAP_CB_CONTINUE ) {
 445                         goto clean2;
 446                 }
 447         }
 448
 449 #ifdef LDAP_CONNECTIONLESS
 450         if (op->o_conn && op->o_conn->c_is_udp)
 451                 ber = op->o_res_ber;
 452         else
 453 #endif
 454         {
 455                 ber_init_w_nullc( ber, LBER_USE_DER );
 456                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 457         }
 458
 459         Debug( LDAP_DEBUG_TRACE,
 460                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 461                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 462
 463         if( rs->sr_ref ) {
 464                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 465                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 466                         NULL, NULL );
 467         }
 468
 469 #ifdef LDAP_CONNECTIONLESS
 470         if (op->o_conn && op->o_conn->c_is_udp &&
 471                 op->o_protocol == LDAP_VERSION2 )
 472         {
 473                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 474                         rs->sr_tag, rs->sr_err,
 475                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 476                 rs->sr_text == NULL ? "" : rs->sr_text );
 477         } else
 478 #endif
 479         if ( rs->sr_type == REP_INTERMEDIATE ) {
 480             rc = ber_printf( ber, "{it{" /*"}}"*/,
 481                         rs->sr_msgid, rs->sr_tag );
 482
 483         } else {
 484             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 485                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 486                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 487                 rs->sr_text == NULL ? "" : rs->sr_text );
 488         }
 489
 490         if( rc != -1 ) {
 491                 if ( rs->sr_ref != NULL ) {
 492                         assert( rs->sr_err == LDAP_REFERRAL );
 493                         rc = ber_printf( ber, "t{W}",
 494                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 495                 } else {
 496                         assert( rs->sr_err != LDAP_REFERRAL );
 497                 }
 498         }
 499
 500         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 501                 rc = ber_printf( ber, "tO",
 502                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 503         }
 504
 505         if( rc != -1 &&
 506                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 507         {
 508                 if ( rs->sr_rspoid != NULL ) {
 509                         rc = ber_printf( ber, "ts",
 510                                 rs->sr_type == REP_EXTENDED
 511                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 512                                 rs->sr_rspoid );
 513                 }
 514                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 515                         rc = ber_printf( ber, "tO",
 516                                 rs->sr_type == REP_EXTENDED
 517                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 518                                 rs->sr_rspdata );
 519                 }
 520         }
 521
 522         if( rc != -1 ) {
 523                 rc = ber_printf( ber, /*"{"*/ "N}" );
 524         }
 525
 526         if( rc != -1 ) {
 527                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 528         }
 529
 530         if( rc != -1 ) {
 531                 rc = ber_printf( ber, /*"{"*/ "N}" );
 532         }
 533
 534 #ifdef LDAP_CONNECTIONLESS
 535         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 536                 && rc != -1 )
 537         {
 538                 rc = ber_printf( ber, /*"{"*/ "N}" );
 539         }
 540 #endif
 541
 542         if ( rc == -1 ) {
 543                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 544
 545 #ifdef LDAP_CONNECTIONLESS
 546                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 547 #endif
 548                 {
 549                         ber_free_buf( ber );
 550                 }
 551                 goto cleanup;
 552         }
 553
 554         /* send BER */
 555         bytes = send_ldap_ber( op->o_conn, ber );
 556 #ifdef LDAP_CONNECTIONLESS
 557         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 558 #endif
 559         {
 560                 ber_free_buf( ber );
 561         }
 562
 563         if ( bytes < 0 ) {
 564                 Debug( LDAP_DEBUG_ANY,
 565                         "send_ldap_response: ber write failed\n",
 566                         0, 0, 0 );
 567
 568                 goto cleanup;
 569         }
 570
 571         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 572         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 573         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 574         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 575
 576 cleanup:;
 577         /* Tell caller that we did this for real, as opposed to being
 578          * overridden by a callback
 579          */
 580         rc = SLAP_CB_CONTINUE;
 581
 582 clean2:;
 583         if ( op->o_callback ) {
 584                 (void)slap_cleanup_play( op, rs );
 585         }
 586
 587         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 588                 free( (char *)rs->sr_matched );
 589                 rs->sr_matched = NULL;
 590         }
 591
 592         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 593                 ber_bvarray_free( rs->sr_ref );
 594                 rs->sr_ref = NULL;
 595         }
 596
 597         return rc;
 598 }
 599
 600
 601 void
 602 send_ldap_disconnect( Operation *op, SlapReply *rs )
 603 {
 604 #define LDAP_UNSOLICITED_ERROR(e) \
 605         (  (e) == LDAP_PROTOCOL_ERROR \
 606         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 607         || (e) == LDAP_UNAVAILABLE )
 608
 609         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 610
 611         rs->sr_type = REP_EXTENDED;
 612
 613         Debug( LDAP_DEBUG_TRACE,
 614                 "send_ldap_disconnect %d:%s\n",
 615                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 616
 617         if ( op->o_protocol < LDAP_VERSION3 ) {
 618                 rs->sr_rspoid = NULL;
 619                 rs->sr_tag = slap_req2res( op->o_tag );
 620                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 621
 622         } else {
 623                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 624                 rs->sr_tag = LDAP_RES_EXTENDED;
 625                 rs->sr_msgid = 0;
 626         }
 627
 628         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 629                 Statslog( LDAP_DEBUG_STATS,
 630                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 631                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 632                         rs->sr_text ? rs->sr_text : "", 0 );
 633         }
 634 }
 635
 636 void
 637 slap_send_ldap_result( Operation *op, SlapReply *rs )
 638 {
 639         char *tmp = NULL;
 640         const char *otext = rs->sr_text;
 641         BerVarray oref = rs->sr_ref;
 642
 643         rs->sr_type = REP_RESULT;
 644
 645         /* Propagate Abandons so that cleanup callbacks can be processed */
 646         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 647                 goto abandon;
 648
 649         assert( !LDAP_API_ERROR( rs->sr_err ) );
 650
 651         Debug( LDAP_DEBUG_TRACE,
 652                 "send_ldap_result: %s p=%d\n",
 653                 op->o_log_prefix, op->o_protocol, 0 );
 654
 655         Debug( LDAP_DEBUG_ARGS,
 656                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 657                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 658                 rs->sr_text ? rs->sr_text : "" );
 659
 660
 661         if( rs->sr_ref ) {
 662                 Debug( LDAP_DEBUG_ARGS,
 663                         "send_ldap_result: referral=\"%s\"\n",
 664                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 665                         NULL, NULL );
 666         }
 667
 668         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 669
 670         if ( rs->sr_err == LDAP_REFERRAL ) {
 671                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 672
 673                 if( rs->sr_ref == NULL ) {
 674                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 675                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 676                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 677                 }
 678         }
 679
 680         if ( op->o_protocol < LDAP_VERSION3 ) {
 681                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 682                 rs->sr_text = tmp;
 683                 rs->sr_ref = NULL;
 684         }
 685
 686         rs->sr_tag = slap_req2res( op->o_tag );
 687         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 688
 689 abandon:
 690         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 691                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 692                         char nbuf[64];
 693                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 694                                 rs->sr_err, rs->sr_nentries );
 695
 696                         Statslog( LDAP_DEBUG_STATS,
 697                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 698                                 op->o_log_prefix, rs->sr_tag, nbuf,
 699                                 rs->sr_text ? rs->sr_text : "", 0 );
 700                 } else {
 701                         Statslog( LDAP_DEBUG_STATS,
 702                                 "%s RESULT tag=%lu err=%d text=%s\n",
 703                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 704                                 rs->sr_text ? rs->sr_text : "", 0 );
 705                 }
 706         }
 707
 708         if( tmp != NULL ) ch_free(tmp);
 709         rs->sr_text = otext;
 710         rs->sr_ref = oref;
 711 }
 712
 713 void
 714 send_ldap_sasl( Operation *op, SlapReply *rs )
 715 {
 716         rs->sr_type = REP_SASL;
 717         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 718                 rs->sr_err,
 719                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 720
 721         rs->sr_tag = slap_req2res( op->o_tag );
 722         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 723
 724         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 725                 Statslog( LDAP_DEBUG_STATS,
 726                         "%s RESULT tag=%lu err=%d text=%s\n",
 727                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 728                         rs->sr_text ? rs->sr_text : "", 0 );
 729         }
 730 }
 731
 732 void
 733 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 734 {
 735         rs->sr_type = REP_EXTENDED;
 736
 737         Debug( LDAP_DEBUG_TRACE,
 738                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 739                 rs->sr_err,
 740                 rs->sr_rspoid ? rs->sr_rspoid : "",
 741                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 742
 743         rs->sr_tag = slap_req2res( op->o_tag );
 744         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 745
 746         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 747                 Statslog( LDAP_DEBUG_STATS,
 748                         "%s RESULT oid=%s err=%d text=%s\n",
 749                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 750                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 751         }
 752 }
 753
 754 void
 755 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 756 {
 757         rs->sr_type = REP_INTERMEDIATE;
 758         Debug( LDAP_DEBUG_TRACE,
 759                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 760                 rs->sr_err,
 761                 rs->sr_rspoid ? rs->sr_rspoid : "",
 762                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 763         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 764         rs->sr_msgid = op->o_msgid;
 765         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 766                 Statslog( LDAP_DEBUG_STATS2,
 767                         "%s INTERM oid=%s\n",
 768                         op->o_log_prefix,
 769                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 770         }
 771 }
 772
 773 /*
 774  * returns:
 775  *
 776  * LDAP_SUCCESS                 entry sent
 777  * LDAP_OTHER                   entry not sent (other)
 778  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 779  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 780  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 781  */
 782
 783 int
 784 slap_send_search_entry( Operation *op, SlapReply *rs )
 785 {
 786         BerElementBuffer berbuf;
 787         BerElement      *ber = (BerElement *) &berbuf;
 788         Attribute       *a;
 789         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 790         char            *edn;
 791         int             userattrs;
 792         AccessControlState acl_state = ACL_STATE_INIT;
 793         int                      attrsonly;
 794         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 795
 796         /* a_flags: array of flags telling if the i-th element will be
 797          *          returned or filtered out
 798          * e_flags: array of a_flags
 799          */
 800         char **e_flags = NULL;
 801
 802         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 803                 return LDAP_SIZELIMIT_EXCEEDED;
 804         }
 805
 806         rs->sr_type = REP_SEARCH;
 807
 808         /* eventually will loop through generated operational attribute types
 809          * currently implemented types include:
 810          *      entryDN, subschemaSubentry, and hasSubordinates */
 811         /* NOTE: moved before overlays callback circling because
 812          * they may modify entry and other stuff in rs */
 813         /* check for special all operational attributes ("+") type */
 814         /* FIXME: maybe we could set this flag at the operation level;
 815          * however, in principle the caller of send_search_entry() may
 816          * change the attribute list at each call */
 817         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 818
 819         rc = backend_operational( op, rs );
 820         if ( rc ) {
 821                 goto error_return;
 822         }
 823
 824         if ( op->o_callback ) {
 825                 rc = slap_response_play( op, rs );
 826                 if ( rc != SLAP_CB_CONTINUE ) {
 827                         goto error_return;
 828                 }
 829         }
 830
 831         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 832                 op->o_connid, rs->sr_entry->e_name.bv_val,
 833                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 834
 835         attrsonly = op->ors_attrsonly;
 836
 837         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 838                 Debug( LDAP_DEBUG_ACL,
 839                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 840                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 841
 842                 rc = LDAP_INSUFFICIENT_ACCESS;
 843                 goto error_return;
 844         }
 845
 846         edn = rs->sr_entry->e_nname.bv_val;
 847
 848         if ( op->o_res_ber ) {
 849                 /* read back control or LDAP_CONNECTIONLESS */
 850             ber = op->o_res_ber;
 851         } else {
 852                 struct berval   bv;
 853
 854                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 855                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 856
 857                 ber_init2( ber, &bv, LBER_USE_DER );
 858                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 859         }
 860
 861 #ifdef LDAP_CONNECTIONLESS
 862         if ( op->o_conn && op->o_conn->c_is_udp ) {
 863                 /* CONNECTIONLESS */
 864                 if ( op->o_protocol == LDAP_VERSION2 ) {
 865                 rc = ber_printf(ber, "t{O{" /*}}*/,
 866                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 867                 } else {
 868                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 869                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 870                 }
 871         } else
 872 #endif
 873         if ( op->o_res_ber ) {
 874                 /* read back control */
 875             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 876         } else {
 877             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 878                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 879         }
 880
 881         if ( rc == -1 ) {
 882                 Debug( LDAP_DEBUG_ANY,
 883                         "send_search_entry: conn %lu  ber_printf failed\n",
 884                         op->o_connid, 0, 0 );
 885
 886                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 887                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 888                 rc = rs->sr_err;
 889                 goto error_return;
 890         }
 891
 892         /* check for special all user attributes ("*") type */
 893         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 894
 895         /* create an array of arrays of flags. Each flag corresponds
 896          * to particular value of attribute and equals 1 if value matches
 897          * to ValuesReturnFilter or 0 if not
 898          */
 899         if ( op->o_vrFilter != NULL ) {
 900                 int     k = 0;
 901                 size_t  size;
 902
 903                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 904                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 905                 }
 906
 907                 size = i * sizeof(char *) + k;
 908                 if ( size > 0 ) {
 909                         char    *a_flags;
 910                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 911                         if( e_flags == NULL ) {
 912                         Debug( LDAP_DEBUG_ANY,
 913                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 914                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 915                                 ber_free( ber, 1 );
 916
 917                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 918                                 goto error_return;
 919                         }
 920                         a_flags = (char *)(e_flags + i);
 921                         memset( a_flags, 0, k );
 922                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 923                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 924                                 e_flags[i] = a_flags;
 925                                 a_flags += j;
 926                         }
 927
 928                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 929                         if ( rc == -1 ) {
 930                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 931                                         "conn %lu matched values filtering failed\n",
 932                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 933                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 934                                 send_ldap_error( op, rs, LDAP_OTHER,
 935                                         "matched values filtering error" );
 936                                 rc = rs->sr_err;
 937                                 goto error_return;
 938                         }
 939                 }
 940         }
 941
 942         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 943                 AttributeDescription *desc = a->a_desc;
 944                 int finish = 0;
 945
 946                 if ( rs->sr_attrs == NULL ) {
 947                         /* all user attrs request, skip operational attributes */
 948                         if( is_at_operational( desc->ad_type ) ) {
 949                                 continue;
 950                         }
 951
 952                 } else {
 953                         /* specific attrs requested */
 954                         if ( is_at_operational( desc->ad_type ) ) {
 955                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 956                                         !ad_inlist( desc, rs->sr_attrs ) )
 957                                 {
 958                                         continue;
 959                                 }
 960
 961                         } else {
 962                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 963                                         continue;
 964                                 }
 965                         }
 966                 }
 967
 968                 if ( attrsonly ) {
 969                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 970                                 ACL_READ, &acl_state ) )
 971                         {
 972                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 973                                         "conn %lu access to attribute %s not allowed\n",
 974                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 975                                 continue;
 976                         }
 977
 978                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -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,
 985                                         "encoding description error");
 986                                 rc = rs->sr_err;
 987                                 goto error_return;
 988                         }
 989                         finish = 1;
 990
 991                 } else {
 992                         int first = 1;
 993                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 994                                 if ( ! access_allowed( op, rs->sr_entry,
 995                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 996                                 {
 997                                         Debug( LDAP_DEBUG_ACL,
 998                                                 "send_search_entry: conn %lu "
 999                                                 "access to attribute %s, value #%d not allowed\n",
1000                                                 op->o_connid, desc->ad_cname.bv_val, i );
1001
1002                                         continue;
1003                                 }
1004
1005                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1006                                         continue;
1007                                 }
1008
1009                                 if ( first ) {
1010                                         first = 0;
1011                                         finish = 1;
1012                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
1013                                                 Debug( LDAP_DEBUG_ANY,
1014                                                         "send_search_entry: conn %lu  ber_printf failed\n",
1015                                                         op->o_connid, 0, 0 );
1016
1017                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1018                                                 send_ldap_error( op, rs, LDAP_OTHER,
1019                                                         "encoding description error");
1020                                                 rc = rs->sr_err;
1021                                                 goto error_return;
1022                                         }
1023                                 }
1024                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1025                                         Debug( LDAP_DEBUG_ANY,
1026                                                 "send_search_entry: conn %lu  "
1027                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
1028
1029                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1030                                         send_ldap_error( op, rs, LDAP_OTHER,
1031                                                 "encoding values error" );
1032                                         rc = rs->sr_err;
1033                                         goto error_return;
1034                                 }
1035                         }
1036                 }
1037
1038                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1039                         Debug( LDAP_DEBUG_ANY,
1040                                 "send_search_entry: conn %lu ber_printf failed\n",
1041                                 op->o_connid, 0, 0 );
1042
1043                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1044                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1045                         rc = rs->sr_err;
1046                         goto error_return;
1047                 }
1048         }
1049
1050         /* NOTE: moved before overlays callback circling because
1051          * they may modify entry and other stuff in rs */
1052         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1053                 int     k = 0;
1054                 size_t  size;
1055
1056                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1057                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1058                 }
1059
1060                 size = i * sizeof(char *) + k;
1061                 if ( size > 0 ) {
1062                         char    *a_flags, **tmp;
1063
1064                         /*
1065                          * Reuse previous memory - we likely need less space
1066                          * for operational attributes
1067                          */
1068                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1069                                 op->o_tmpmemctx );
1070                         if ( tmp == NULL ) {
1071                                 Debug( LDAP_DEBUG_ANY,
1072                                         "send_search_entry: conn %lu "
1073                                         "not enough memory "
1074                                         "for matched values filtering\n",
1075                                         op->o_connid, 0, 0 );
1076                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1077                                 send_ldap_error( op, rs, LDAP_OTHER,
1078                                         "not enough memory for matched values filtering" );
1079                                 goto error_return;
1080                         }
1081                         e_flags = tmp;
1082                         a_flags = (char *)(e_flags + i);
1083                         memset( a_flags, 0, k );
1084                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1085                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1086                                 e_flags[i] = a_flags;
1087                                 a_flags += j;
1088                         }
1089                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1090
1091                         if ( rc == -1 ) {
1092                                 Debug( LDAP_DEBUG_ANY,
1093                                         "send_search_entry: conn %lu "
1094                                         "matched values filtering failed\n",
1095                                         op->o_connid ? op->o_connid : 0, 0, 0);
1096                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1097                                 send_ldap_error( op, rs, LDAP_OTHER,
1098                                         "matched values filtering error" );
1099                                 rc = rs->sr_err;
1100                                 goto error_return;
1101                         }
1102                 }
1103         }
1104
1105         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1106                 AttributeDescription *desc = a->a_desc;
1107
1108                 if ( rs->sr_attrs == NULL ) {
1109                         /* all user attrs request, skip operational attributes */
1110                         if( is_at_operational( desc->ad_type ) ) {
1111                                 continue;
1112                         }
1113
1114                 } else {
1115                         /* specific attrs requested */
1116                         if( is_at_operational( desc->ad_type ) ) {
1117                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1118                                         !ad_inlist( desc, rs->sr_attrs ) )
1119                                 {
1120                                         continue;
1121                                 }
1122                         } else {
1123                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1124                                         continue;
1125                                 }
1126                         }
1127                 }
1128
1129                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1130                         ACL_READ, &acl_state ) )
1131                 {
1132                         Debug( LDAP_DEBUG_ACL,
1133                                 "send_search_entry: conn %lu "
1134                                 "access to attribute %s not allowed\n",
1135                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1136
1137                         continue;
1138                 }
1139
1140                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1141                 if ( rc == -1 ) {
1142                         Debug( LDAP_DEBUG_ANY,
1143                                 "send_search_entry: conn %lu  "
1144                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1145
1146                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1147                         send_ldap_error( op, rs, LDAP_OTHER,
1148                                 "encoding description error" );
1149                         rc = rs->sr_err;
1150                         goto error_return;
1151                 }
1152
1153                 if ( ! attrsonly ) {
1154                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1155                                 if ( ! access_allowed( op, rs->sr_entry,
1156                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1157                                 {
1158                                         Debug( LDAP_DEBUG_ACL,
1159                                                 "send_search_entry: conn %lu "
1160                                                 "access to %s, value %d not allowed\n",
1161                                                 op->o_connid, desc->ad_cname.bv_val, i );
1162
1163                                         continue;
1164                                 }
1165
1166                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1167                                         continue;
1168                                 }
1169
1170                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1171                                         Debug( LDAP_DEBUG_ANY,
1172                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1173                                                 op->o_connid, 0, 0 );
1174
1175                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1176                                         send_ldap_error( op, rs, LDAP_OTHER,
1177                                                 "encoding values error" );
1178                                         rc = rs->sr_err;
1179                                         goto error_return;
1180                                 }
1181                         }
1182                 }
1183
1184                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1185                         Debug( LDAP_DEBUG_ANY,
1186                                 "send_search_entry: conn %lu  ber_printf failed\n",
1187                                 op->o_connid, 0, 0 );
1188
1189                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1190                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1191                         rc = rs->sr_err;
1192                         goto error_return;
1193                 }
1194         }
1195
1196         /* free e_flags */
1197         if ( e_flags ) {
1198                 slap_sl_free( e_flags, op->o_tmpmemctx );
1199                 e_flags = NULL;
1200         }
1201
1202         rc = ber_printf( ber, /*{{*/ "}N}" );
1203
1204         if( rc != -1 ) {
1205                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1206         }
1207
1208         if( rc != -1 ) {
1209 #ifdef LDAP_CONNECTIONLESS
1210                 if( op->o_conn && op->o_conn->c_is_udp ) {
1211                         if ( op->o_protocol != LDAP_VERSION2 ) {
1212                                 rc = ber_printf( ber, /*{*/ "N}" );
1213                         }
1214                 } else
1215 #endif
1216                 if ( op->o_res_ber == NULL ) {
1217                         rc = ber_printf( ber, /*{*/ "N}" );
1218                 }
1219         }
1220
1221         if ( rc == -1 ) {
1222                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1223
1224                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1225                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1226                 rc = rs->sr_err;
1227                 goto error_return;
1228         }
1229
1230         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1231                 be_entry_release_rw( op, rs->sr_entry, 0 );
1232                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1233                 rs->sr_entry = NULL;
1234         }
1235
1236         if ( op->o_res_ber == NULL ) {
1237                 bytes = send_ldap_ber( op->o_conn, ber );
1238                 ber_free_buf( ber );
1239
1240                 if ( bytes < 0 ) {
1241                         Debug( LDAP_DEBUG_ANY,
1242                                 "send_search_entry: conn %lu  ber write failed.\n",
1243                                 op->o_connid, 0, 0 );
1244
1245                         rc = LDAP_UNAVAILABLE;
1246                         goto error_return;
1247                 }
1248                 rs->sr_nentries++;
1249
1250                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1251                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1252                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1253                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1254                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1255         }
1256
1257         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1258             op->o_log_prefix, edn, 0, 0, 0 );
1259
1260         Debug( LDAP_DEBUG_TRACE,
1261                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1262
1263         rc = LDAP_SUCCESS;
1264
1265 error_return:;
1266         if ( op->o_callback ) {
1267                 (void)slap_cleanup_play( op, rs );
1268         }
1269
1270         if ( e_flags ) {
1271                 slap_sl_free( e_flags, op->o_tmpmemctx );
1272         }
1273
1274         if ( rs->sr_operational_attrs ) {
1275                 attrs_free( rs->sr_operational_attrs );
1276                 rs->sr_operational_attrs = NULL;
1277         }
1278         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1279
1280         /* FIXME: I think rs->sr_type should be explicitly set to
1281          * REP_SEARCH here. That's what it was when we entered this
1282          * function. send_ldap_error may have changed it, but we
1283          * should set it back so that the cleanup functions know
1284          * what they're doing.
1285          */
1286         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1287                 && rs->sr_entry
1288                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1289         {
1290                 entry_free( rs->sr_entry );
1291                 rs->sr_entry = NULL;
1292                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1293         }
1294
1295         return( rc );
1296 }
1297
1298 int
1299 slap_send_search_reference( Operation *op, SlapReply *rs )
1300 {
1301         BerElementBuffer berbuf;
1302         BerElement      *ber = (BerElement *) &berbuf;
1303         int rc = 0;
1304         int bytes;
1305
1306         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1307         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1308
1309         rs->sr_type = REP_SEARCHREF;
1310         if ( op->o_callback ) {
1311                 rc = slap_response_play( op, rs );
1312                 if ( rc != SLAP_CB_CONTINUE ) {
1313                         goto rel;
1314                 }
1315         }
1316
1317         Debug( LDAP_DEBUG_TRACE,
1318                 "=> send_search_reference: dn=\"%s\"\n",
1319                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1320
1321         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1322                 ad_entry, NULL, ACL_READ, NULL ) )
1323         {
1324                 Debug( LDAP_DEBUG_ACL,
1325                         "send_search_reference: access to entry not allowed\n",
1326                     0, 0, 0 );
1327                 rc = 1;
1328                 goto rel;
1329         }
1330
1331         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1332                 ad_ref, NULL, ACL_READ, NULL ) )
1333         {
1334                 Debug( LDAP_DEBUG_ACL,
1335                         "send_search_reference: access "
1336                         "to reference not allowed\n",
1337                     0, 0, 0 );
1338                 rc = 1;
1339                 goto rel;
1340         }
1341
1342         if( op->o_domain_scope ) {
1343                 Debug( LDAP_DEBUG_ANY,
1344                         "send_search_reference: domainScope control in (%s)\n",
1345                         rs->sr_entry->e_dn, 0, 0 );
1346                 rc = 0;
1347                 goto rel;
1348         }
1349
1350         if( rs->sr_ref == NULL ) {
1351                 Debug( LDAP_DEBUG_ANY,
1352                         "send_search_reference: null ref in (%s)\n",
1353                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1354                 rc = 1;
1355                 goto rel;
1356         }
1357
1358         if( op->o_protocol < LDAP_VERSION3 ) {
1359                 rc = 0;
1360                 /* save the references for the result */
1361                 if( rs->sr_ref[0].bv_val != NULL ) {
1362                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1363                                 rc = LDAP_OTHER;
1364                 }
1365                 goto rel;
1366         }
1367
1368 #ifdef LDAP_CONNECTIONLESS
1369         if( op->o_conn && op->o_conn->c_is_udp ) {
1370                 ber = op->o_res_ber;
1371         } else
1372 #endif
1373         {
1374                 ber_init_w_nullc( ber, LBER_USE_DER );
1375                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1376         }
1377
1378         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1379                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1380
1381         if( rc != -1 ) {
1382                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1383         }
1384
1385         if( rc != -1 ) {
1386                 rc = ber_printf( ber, /*"{"*/ "N}" );
1387         }
1388
1389         if ( rc == -1 ) {
1390                 Debug( LDAP_DEBUG_ANY,
1391                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1392
1393 #ifdef LDAP_CONNECTIONLESS
1394                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1395 #endif
1396                 ber_free_buf( ber );
1397                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1398                 goto rel;
1399         }
1400
1401         rc = 0;
1402         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1403                 be_entry_release_rw( op, rs->sr_entry, 0 );
1404                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1405                 rs->sr_entry = NULL;
1406         }
1407
1408 #ifdef LDAP_CONNECTIONLESS
1409         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1410 #endif
1411         bytes = send_ldap_ber( op->o_conn, ber );
1412         ber_free_buf( ber );
1413
1414         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1415         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1416         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1417         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1418         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1419 #ifdef LDAP_CONNECTIONLESS
1420         }
1421 #endif
1422         if ( rs->sr_ref != NULL ) {
1423                 int     r;
1424
1425                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1426                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1427                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1428                                 0, 0 );
1429                 }
1430
1431         } else {
1432                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1433                         op->o_log_prefix, 0, 0, 0, 0 );
1434         }
1435
1436         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1437
1438 rel:
1439         if ( op->o_callback ) {
1440                 (void)slap_cleanup_play( op, rs );
1441         }
1442
1443         return rc;
1444 }
1445
1446 int
1447 str2result(
1448     char        *s,
1449     int         *code,
1450     char        **matched,
1451     char        **info )
1452 {
1453         int     rc;
1454         char    *c;
1455
1456         *code = LDAP_SUCCESS;
1457         *matched = NULL;
1458         *info = NULL;
1459
1460         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1461                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1462                     s, 0, 0 );
1463
1464                 return( -1 );
1465         }
1466
1467         rc = 0;
1468         while ( (s = strchr( s, '\n' )) != NULL ) {
1469                 *s++ = '\0';
1470                 if ( *s == '\0' ) {
1471                         break;
1472                 }
1473                 if ( (c = strchr( s, ':' )) != NULL ) {
1474                         c++;
1475                 }
1476
1477                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1478                         if ( c != NULL && lutil_atoi( code, c ) != 0 ) {
1479                                 goto bailout;
1480                         }
1481                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1482                         if ( c != NULL ) {
1483                                 *matched = c;
1484                         }
1485                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1486                         if ( c != NULL ) {
1487                                 *info = c;
1488                         }
1489                 } else {
1490 bailout:;
1491                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1492                             s, 0, 0 );
1493
1494                         rc = -1;
1495                 }
1496         }
1497
1498         return( rc );
1499 }
1500
1501 int slap_read_controls(
1502         Operation *op,
1503         SlapReply *rs,
1504         Entry *e,
1505         const struct berval *oid,
1506         LDAPControl **ctrl )
1507 {
1508         int rc;
1509         struct berval bv;
1510         BerElementBuffer berbuf;
1511         BerElement *ber = (BerElement *) &berbuf;
1512         LDAPControl c;
1513         Operation myop;
1514
1515         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1516                 oid->bv_val, e->e_dn, 0 );
1517
1518         rs->sr_entry = e;
1519         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1520                 op->o_preread_attrs : op->o_postread_attrs;
1521
1522         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1523         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1524
1525         ber_init2( ber, &bv, LBER_USE_DER );
1526         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1527
1528         /* create new operation */
1529         myop = *op;
1530         myop.o_bd = NULL;
1531         myop.o_res_ber = ber;
1532         myop.o_callback = NULL;
1533         myop.ors_slimit = 1;
1534
1535         rc = slap_send_search_entry( &myop, rs );
1536         if( rc ) return rc;
1537
1538         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1539
1540         if( rc == LBER_ERROR ) return LDAP_OTHER;
1541
1542         c.ldctl_oid = oid->bv_val;
1543         c.ldctl_iscritical = 0;
1544
1545         if ( *ctrl == NULL ) {
1546                 /* first try */
1547                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1548         } else {
1549                 /* retry: free previous try */
1550                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1551         }
1552
1553         **ctrl = c;
1554         return LDAP_SUCCESS;
1555 }
1556
1557 /* Map API errors to protocol errors... */
1558 int
1559 slap_map_api2result( SlapReply *rs )
1560 {
1561         switch(rs->sr_err) {
1562         case LDAP_SERVER_DOWN:
1563                 return LDAP_UNAVAILABLE;
1564         case LDAP_LOCAL_ERROR:
1565                 return LDAP_OTHER;
1566         case LDAP_ENCODING_ERROR:
1567         case LDAP_DECODING_ERROR:
1568                 return LDAP_PROTOCOL_ERROR;
1569         case LDAP_TIMEOUT:
1570                 return LDAP_UNAVAILABLE;
1571         case LDAP_AUTH_UNKNOWN:
1572                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1573         case LDAP_FILTER_ERROR:
1574                 rs->sr_text = "Filter error";
1575                 return LDAP_OTHER;
1576         case LDAP_USER_CANCELLED:
1577                 rs->sr_text = "User cancelled";
1578                 return LDAP_OTHER;
1579         case LDAP_PARAM_ERROR:
1580                 return LDAP_PROTOCOL_ERROR;
1581         case LDAP_NO_MEMORY:
1582                 return LDAP_OTHER;
1583         case LDAP_CONNECT_ERROR:
1584                 return LDAP_UNAVAILABLE;
1585         case LDAP_NOT_SUPPORTED:
1586                 return LDAP_UNWILLING_TO_PERFORM;
1587         case LDAP_CONTROL_NOT_FOUND:
1588                 return LDAP_PROTOCOL_ERROR;
1589         case LDAP_NO_RESULTS_RETURNED:
1590                 return LDAP_NO_SUCH_OBJECT;
1591         case LDAP_MORE_RESULTS_TO_RETURN:
1592                 rs->sr_text = "More results to return";
1593                 return LDAP_OTHER;
1594         case LDAP_CLIENT_LOOP:
1595         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1596                 return LDAP_LOOP_DETECT;
1597         default:
1598                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1599                 return rs->sr_err;
1600         }
1601 }
1602
1603
1604 slap_mask_t
1605 slap_attr_flags( AttributeName *an )
1606 {
1607         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1608
1609         if ( an == NULL ) {
1610                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1611
1612         } else {
1613                 flags |= an_find( an, &AllOper )
1614                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1615                 flags |= an_find( an, &AllUser )
1616                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1617         }
1618
1619         return flags;
1620 }
1621