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