git.sur5r.net Git - openldap/blob - servers/slapd/result.c

   1 /* result.c - routines to send ldap results, errors, and referrals */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2005 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/errno.h>
  33 #include <ac/string.h>
  34 #include <ac/ctype.h>
  35 #include <ac/time.h>
  36 #include <ac/unistd.h>
  37
  38 #include "slap.h"
  39 #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 send_ldap_response(
 291         Operation *op,
 292         SlapReply *rs )
 293 {
 294         BerElementBuffer berbuf;
 295         BerElement      *ber = (BerElement *) &berbuf;
 296         int             rc = LDAP_SUCCESS;
 297         long    bytes;
 298
 299         if ( rs->sr_err == SLAPD_ABANDON ) {
 300                 rc = SLAPD_ABANDON;
 301                 goto clean2;
 302         }
 303
 304         if ( op->o_callback ) {
 305                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 306
 307                 rc = SLAP_CB_CONTINUE;
 308                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 309                         sc_next = op->o_callback->sc_next;
 310                         if ( op->o_callback->sc_response ) {
 311                                 rc = op->o_callback->sc_response( op, rs );
 312                                 if ( op->o_callback != *sc_prev ) {
 313                                         *sc_prev = op->o_callback;
 314                                 }
 315                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 316                         }
 317                         sc_prev = &op->o_callback->sc_next;
 318                 }
 319
 320                 op->o_callback = sc;
 321                 if ( rc != SLAP_CB_CONTINUE ) goto clean2;
 322         }
 323
 324 #ifdef LDAP_CONNECTIONLESS
 325         if (op->o_conn && op->o_conn->c_is_udp)
 326                 ber = op->o_res_ber;
 327         else
 328 #endif
 329         {
 330                 ber_init_w_nullc( ber, LBER_USE_DER );
 331                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 332         }
 333
 334         Debug( LDAP_DEBUG_TRACE,
 335                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 336                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 337
 338         if( rs->sr_ref ) {
 339                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 340                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 341                         NULL, NULL );
 342         }
 343
 344 #ifdef LDAP_CONNECTIONLESS
 345         if (op->o_conn && op->o_conn->c_is_udp &&
 346                 op->o_protocol == LDAP_VERSION2 )
 347         {
 348                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 349                         rs->sr_tag, rs->sr_err,
 350                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 351                 rs->sr_text == NULL ? "" : rs->sr_text );
 352         } else
 353 #endif
 354         if ( rs->sr_type == REP_INTERMEDIATE ) {
 355             rc = ber_printf( ber, "{it{" /*"}}"*/,
 356                         rs->sr_msgid, rs->sr_tag );
 357
 358         } else {
 359             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 360                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 361                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 362                 rs->sr_text == NULL ? "" : rs->sr_text );
 363         }
 364
 365         if( rc != -1 ) {
 366                 if ( rs->sr_ref != NULL ) {
 367                         assert( rs->sr_err == LDAP_REFERRAL );
 368                         rc = ber_printf( ber, "t{W}",
 369                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 370                 } else {
 371                         assert( rs->sr_err != LDAP_REFERRAL );
 372                 }
 373         }
 374
 375         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 376                 rc = ber_printf( ber, "tO",
 377                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 378         }
 379
 380         if( rc != -1 &&
 381                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 382         {
 383                 if ( rs->sr_rspoid != NULL ) {
 384                         rc = ber_printf( ber, "ts",
 385                                 rs->sr_type == REP_EXTENDED
 386                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 387                                 rs->sr_rspoid );
 388                 }
 389                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 390                         rc = ber_printf( ber, "tO",
 391                                 rs->sr_type == REP_EXTENDED
 392                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 393                                 rs->sr_rspdata );
 394                 }
 395         }
 396
 397         if( rc != -1 ) {
 398                 rc = ber_printf( ber, /*"{"*/ "N}" );
 399         }
 400
 401         if( rc != -1 ) {
 402                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 403         }
 404
 405         if( rc != -1 ) {
 406                 rc = ber_printf( ber, /*"{"*/ "N}" );
 407         }
 408
 409 #ifdef LDAP_CONNECTIONLESS
 410         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 411                 && rc != -1 )
 412         {
 413                 rc = ber_printf( ber, /*"{"*/ "N}" );
 414         }
 415 #endif
 416
 417         if ( rc == -1 ) {
 418                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 419
 420 #ifdef LDAP_CONNECTIONLESS
 421                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 422 #endif
 423                 {
 424                         ber_free_buf( ber );
 425                 }
 426                 goto cleanup;
 427         }
 428
 429         /* send BER */
 430         bytes = send_ldap_ber( op->o_conn, ber );
 431 #ifdef LDAP_CONNECTIONLESS
 432         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 433 #endif
 434         {
 435                 ber_free_buf( ber );
 436         }
 437
 438         if ( bytes < 0 ) {
 439                 Debug( LDAP_DEBUG_ANY,
 440                         "send_ldap_response: ber write failed\n",
 441                         0, 0, 0 );
 442
 443                 goto cleanup;
 444         }
 445
 446         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 447         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 448         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 449         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 450
 451 cleanup:;
 452         /* Tell caller that we did this for real, as opposed to being
 453          * overridden by a callback
 454          */
 455         rc = SLAP_CB_CONTINUE;
 456
 457 clean2:;
 458         if ( op->o_callback ) {
 459                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 460
 461                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 462                         sc_next = op->o_callback->sc_next;
 463                         if ( op->o_callback->sc_cleanup ) {
 464                                 (void)op->o_callback->sc_cleanup( op, rs );
 465                                 if ( op->o_callback != *sc_prev ) {
 466                                         *sc_prev = op->o_callback;
 467                                 }
 468                                 if ( !op->o_callback ) break;
 469                         }
 470                         sc_prev = &op->o_callback->sc_next;
 471                 }
 472                 op->o_callback = sc;
 473         }
 474
 475
 476         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 477                 free( (char *)rs->sr_matched );
 478                 rs->sr_matched = NULL;
 479         }
 480
 481         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 482                 ber_bvarray_free( rs->sr_ref );
 483                 rs->sr_ref = NULL;
 484         }
 485
 486         return rc;
 487 }
 488
 489
 490 void
 491 send_ldap_disconnect( Operation *op, SlapReply *rs )
 492 {
 493 #define LDAP_UNSOLICITED_ERROR(e) \
 494         (  (e) == LDAP_PROTOCOL_ERROR \
 495         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 496         || (e) == LDAP_UNAVAILABLE )
 497
 498         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 499
 500         rs->sr_type = REP_EXTENDED;
 501
 502         Debug( LDAP_DEBUG_TRACE,
 503                 "send_ldap_disconnect %d:%s\n",
 504                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 505
 506         if ( op->o_protocol < LDAP_VERSION3 ) {
 507                 rs->sr_rspoid = NULL;
 508                 rs->sr_tag = slap_req2res( op->o_tag );
 509                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 510
 511         } else {
 512                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 513                 rs->sr_tag = LDAP_RES_EXTENDED;
 514                 rs->sr_msgid = 0;
 515         }
 516
 517         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 518                 Statslog( LDAP_DEBUG_STATS,
 519                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 520                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 521                         rs->sr_text ? rs->sr_text : "", 0 );
 522         }
 523 }
 524
 525 void
 526 slap_send_ldap_result( Operation *op, SlapReply *rs )
 527 {
 528         char *tmp = NULL;
 529         const char *otext = rs->sr_text;
 530         BerVarray oref = rs->sr_ref;
 531
 532         rs->sr_type = REP_RESULT;
 533
 534         /* Propagate Abandons so that cleanup callbacks can be processed */
 535         if ( rs->sr_err == SLAPD_ABANDON )
 536                 goto abandon;
 537
 538         assert( !LDAP_API_ERROR( rs->sr_err ) );
 539
 540         Debug( LDAP_DEBUG_TRACE,
 541                 "send_ldap_result: %s p=%d\n",
 542                 op->o_log_prefix, op->o_protocol, 0 );
 543
 544         Debug( LDAP_DEBUG_ARGS,
 545                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 546                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 547                 rs->sr_text ? rs->sr_text : "" );
 548
 549
 550         if( rs->sr_ref ) {
 551                 Debug( LDAP_DEBUG_ARGS,
 552                         "send_ldap_result: referral=\"%s\"\n",
 553                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 554                         NULL, NULL );
 555         }
 556
 557         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 558
 559         if ( rs->sr_err == LDAP_REFERRAL ) {
 560 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 561                 if( op->o_domain_scope ) {
 562                         rs->sr_ref = NULL;
 563                 }
 564 #endif
 565                 if( rs->sr_ref == NULL ) {
 566                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 567                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 568                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 569                 }
 570         }
 571
 572         if ( op->o_protocol < LDAP_VERSION3 ) {
 573                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 574                 rs->sr_text = tmp;
 575                 rs->sr_ref = NULL;
 576         }
 577
 578         rs->sr_tag = slap_req2res( op->o_tag );
 579         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 580
 581 abandon:
 582         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 583                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 584                         char nbuf[64];
 585                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 586                                 rs->sr_err, rs->sr_nentries );
 587
 588                         Statslog( LDAP_DEBUG_STATS,
 589                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 590                                 op->o_log_prefix, rs->sr_tag, nbuf,
 591                                 rs->sr_text ? rs->sr_text : "", 0 );
 592                 } else {
 593                         Statslog( LDAP_DEBUG_STATS,
 594                                 "%s RESULT tag=%lu err=%d text=%s\n",
 595                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 596                                 rs->sr_text ? rs->sr_text : "", 0 );
 597                 }
 598         }
 599
 600         if( tmp != NULL ) ch_free(tmp);
 601         rs->sr_text = otext;
 602         rs->sr_ref = oref;
 603 }
 604
 605 void
 606 send_ldap_sasl( Operation *op, SlapReply *rs )
 607 {
 608         rs->sr_type = REP_SASL;
 609         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 610                 rs->sr_err,
 611                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 612
 613         rs->sr_tag = slap_req2res( op->o_tag );
 614         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 615
 616         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 617                 Statslog( LDAP_DEBUG_STATS,
 618                         "%s RESULT tag=%lu err=%d text=%s\n",
 619                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 620                         rs->sr_text ? rs->sr_text : "", 0 );
 621         }
 622 }
 623
 624 void
 625 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 626 {
 627         rs->sr_type = REP_EXTENDED;
 628
 629         Debug( LDAP_DEBUG_TRACE,
 630                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 631                 rs->sr_err,
 632                 rs->sr_rspoid ? rs->sr_rspoid : "",
 633                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 634
 635         rs->sr_tag = slap_req2res( op->o_tag );
 636         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 637
 638         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 639                 Statslog( LDAP_DEBUG_STATS,
 640                         "%s RESULT oid=%s err=%d text=%s\n",
 641                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 642                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 643         }
 644 }
 645
 646 void
 647 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 648 {
 649         rs->sr_type = REP_INTERMEDIATE;
 650         Debug( LDAP_DEBUG_TRACE,
 651                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 652                 rs->sr_err,
 653                 rs->sr_rspoid ? rs->sr_rspoid : "",
 654                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 655         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 656         rs->sr_msgid = op->o_msgid;
 657         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 658                 Statslog( LDAP_DEBUG_STATS2,
 659                         "%s INTERM oid=%s\n",
 660                         op->o_log_prefix,
 661                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 662         }
 663 }
 664
 665 /*
 666  * returns:
 667  *
 668  *  0                   entry sent
 669  *  1                   entry not sent (other)
 670  * -1                   entry not sent (connection closed)
 671  * SLAPD_SEND_SIZELIMIT entry not sent (caller must send sizelimitExceeded)
 672  */
 673
 674 int
 675 slap_send_search_entry( Operation *op, SlapReply *rs )
 676 {
 677         BerElementBuffer berbuf;
 678         BerElement      *ber = (BerElement *) &berbuf;
 679         Attribute       *a;
 680         int             i, j, rc=-1, bytes;
 681         char            *edn;
 682         int             userattrs;
 683         AccessControlState acl_state = ACL_STATE_INIT;
 684         int                      attrsonly;
 685         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 686
 687         /* a_flags: array of flags telling if the i-th element will be
 688          *          returned or filtered out
 689          * e_flags: array of a_flags
 690          */
 691         char **e_flags = NULL;
 692
 693         rs->sr_type = REP_SEARCH;
 694
 695         /* eventually will loop through generated operational attribute types
 696          * currently implemented types include:
 697          *      entryDN, subschemaSubentry, and hasSubordinates */
 698         /* NOTE: moved before overlays callback circling because
 699          * they may modify entry and other stuff in rs */
 700         /* check for special all operational attributes ("+") type */
 701         /* FIXME: maybe we could se this flag at the operation level;
 702          * however, in principle the caller of send_search_entry() may
 703          * change the attribute list at each call */
 704         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 705
 706         rc = backend_operational( op, rs );
 707         if ( rc ) {
 708                 goto error_return;
 709         }
 710
 711         if ( op->o_callback ) {
 712                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 713
 714                 rc = SLAP_CB_CONTINUE;
 715                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next )
 716                 {
 717                         sc_next = op->o_callback->sc_next;
 718                         if ( op->o_callback->sc_response ) {
 719                                 rc = op->o_callback->sc_response( op, rs );
 720                                 if ( op->o_callback != *sc_prev ) {
 721                                         *sc_prev = op->o_callback;
 722                                 }
 723                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 724                         }
 725                         sc_prev = &op->o_callback->sc_next;
 726                 }
 727
 728                 op->o_callback = sc;
 729                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 730         }
 731
 732         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 733                 op->o_connid, rs->sr_entry->e_name.bv_val,
 734                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 735
 736         attrsonly = op->ors_attrsonly;
 737
 738         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 739                 Debug( LDAP_DEBUG_ACL,
 740                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 741                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 742
 743                 rc = 1;
 744                 goto error_return;
 745         }
 746
 747         edn = rs->sr_entry->e_nname.bv_val;
 748
 749         if ( op->o_res_ber ) {
 750                 /* read back control or LDAP_CONNECTIONLESS */
 751             ber = op->o_res_ber;
 752         } else {
 753                 struct berval   bv;
 754
 755                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 756                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 757
 758                 ber_init2( ber, &bv, LBER_USE_DER );
 759                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 760         }
 761
 762 #ifdef LDAP_CONNECTIONLESS
 763         if ( op->o_conn && op->o_conn->c_is_udp ) {
 764                 /* CONNECTIONLESS */
 765                 if ( op->o_protocol == LDAP_VERSION2 ) {
 766                 rc = ber_printf(ber, "t{O{" /*}}*/,
 767                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 768                 } else {
 769                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 770                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 771                 }
 772         } else
 773 #endif
 774         if ( op->o_res_ber ) {
 775                 /* read back control */
 776             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 777         } else {
 778             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 779                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 780         }
 781
 782         if ( rc == -1 ) {
 783                 Debug( LDAP_DEBUG_ANY,
 784                         "send_search_entry: conn %lu  ber_printf failed\n",
 785                         op->o_connid, 0, 0 );
 786
 787                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 788                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 789                 goto error_return;
 790         }
 791
 792         /* check for special all user attributes ("*") type */
 793         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 794
 795         /* create an array of arrays of flags. Each flag corresponds
 796          * to particular value of attribute and equals 1 if value matches
 797          * to ValuesReturnFilter or 0 if not
 798          */
 799         if ( op->o_vrFilter != NULL ) {
 800                 int     k = 0;
 801                 size_t  size;
 802
 803                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 804                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 805                 }
 806
 807                 size = i * sizeof(char *) + k;
 808                 if ( size > 0 ) {
 809                         char    *a_flags;
 810                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 811                         if( e_flags == NULL ) {
 812                         Debug( LDAP_DEBUG_ANY,
 813                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 814                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 815                                 ber_free( ber, 1 );
 816
 817                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 818                                 goto error_return;
 819                         }
 820                         a_flags = (char *)(e_flags + i);
 821                         memset( a_flags, 0, k );
 822                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 823                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 824                                 e_flags[i] = a_flags;
 825                                 a_flags += j;
 826                         }
 827
 828                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 829                         if ( rc == -1 ) {
 830                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 831                                         "conn %lu matched values filtering failed\n",
 832                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 833                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 834                                 send_ldap_error( op, rs, LDAP_OTHER,
 835                                         "matched values filtering error" );
 836                                 goto error_return;
 837                         }
 838                 }
 839         }
 840
 841         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 842                 AttributeDescription *desc = a->a_desc;
 843                 int finish = 0;
 844
 845                 if ( rs->sr_attrs == NULL ) {
 846                         /* all user attrs request, skip operational attributes */
 847                         if( is_at_operational( desc->ad_type ) ) {
 848                                 continue;
 849                         }
 850
 851                 } else {
 852                         /* specific attrs requested */
 853                         if ( is_at_operational( desc->ad_type ) ) {
 854                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 855                                         !ad_inlist( desc, rs->sr_attrs ) )
 856                                 {
 857                                         continue;
 858                                 }
 859
 860                         } else {
 861                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 862                                         continue;
 863                                 }
 864                         }
 865                 }
 866
 867                 if ( attrsonly ) {
 868                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 869                                 ACL_READ, &acl_state ) )
 870                         {
 871                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 872                                         "conn %lu access to attribute %s not allowed\n",
 873                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 874                                 continue;
 875                         }
 876
 877                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 878                                 Debug( LDAP_DEBUG_ANY,
 879                                         "send_search_entry: conn %lu  ber_printf failed\n",
 880                                         op->o_connid, 0, 0 );
 881
 882                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 883                                 send_ldap_error( op, rs, LDAP_OTHER,
 884                                         "encoding description error");
 885                                 goto error_return;
 886                         }
 887                         finish = 1;
 888
 889                 } else {
 890                         int first = 1;
 891                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 892                                 if ( ! access_allowed( op, rs->sr_entry,
 893                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 894                                 {
 895                                         Debug( LDAP_DEBUG_ACL,
 896                                                 "send_search_entry: conn %lu "
 897                                                 "access to attribute %s, value #%d not allowed\n",
 898                                                 op->o_connid, desc->ad_cname.bv_val, i );
 899
 900                                         continue;
 901                                 }
 902
 903                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 904                                         continue;
 905                                 }
 906
 907                                 if ( first ) {
 908                                         first = 0;
 909                                         finish = 1;
 910                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 911                                                 Debug( LDAP_DEBUG_ANY,
 912                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 913                                                         op->o_connid, 0, 0 );
 914
 915                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 916                                                 send_ldap_error( op, rs, LDAP_OTHER,
 917                                                         "encoding description error");
 918                                                 goto error_return;
 919                                         }
 920                                 }
 921                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 922                                         Debug( LDAP_DEBUG_ANY,
 923                                                 "send_search_entry: conn %lu  "
 924                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 925
 926                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 927                                         send_ldap_error( op, rs, LDAP_OTHER,
 928                                                 "encoding values error" );
 929                                         goto error_return;
 930                                 }
 931                         }
 932                 }
 933
 934                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 935                         Debug( LDAP_DEBUG_ANY,
 936                                 "send_search_entry: conn %lu ber_printf failed\n",
 937                                 op->o_connid, 0, 0 );
 938
 939                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 940                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 941                         goto error_return;
 942                 }
 943         }
 944
 945         /* NOTE: moved before overlays callback circling because
 946          * they may modify entry and other stuff in rs */
 947         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 948                 int     k = 0;
 949                 size_t  size;
 950
 951                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 952                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 953                 }
 954
 955                 size = i * sizeof(char *) + k;
 956                 if ( size > 0 ) {
 957                         char    *a_flags, **tmp;
 958
 959                         /*
 960                          * Reuse previous memory - we likely need less space
 961                          * for operational attributes
 962                          */
 963                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 964                                 op->o_tmpmemctx );
 965                         if ( tmp == NULL ) {
 966                                 Debug( LDAP_DEBUG_ANY,
 967                                         "send_search_entry: conn %lu "
 968                                         "not enough memory "
 969                                         "for matched values filtering\n",
 970                                         op->o_connid, 0, 0 );
 971                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 972                                 send_ldap_error( op, rs, LDAP_OTHER,
 973                                         "not enough memory for matched values filtering" );
 974                                 goto error_return;
 975                         }
 976                         e_flags = tmp;
 977                         a_flags = (char *)(e_flags + i);
 978                         memset( a_flags, 0, k );
 979                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 980                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 981                                 e_flags[i] = a_flags;
 982                                 a_flags += j;
 983                         }
 984                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
 985
 986                         if ( rc == -1 ) {
 987                                 Debug( LDAP_DEBUG_ANY,
 988                                         "send_search_entry: conn %lu "
 989                                         "matched values filtering failed\n",
 990                                         op->o_connid ? op->o_connid : 0, 0, 0);
 991                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 992                                 send_ldap_error( op, rs, LDAP_OTHER,
 993                                         "matched values filtering error" );
 994                                 goto error_return;
 995                         }
 996                 }
 997         }
 998
 999         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1000                 AttributeDescription *desc = a->a_desc;
1001
1002                 if ( rs->sr_attrs == NULL ) {
1003                         /* all user attrs request, skip operational attributes */
1004                         if( is_at_operational( desc->ad_type ) ) {
1005                                 continue;
1006                         }
1007
1008                 } else {
1009                         /* specific attrs requested */
1010                         if( is_at_operational( desc->ad_type ) ) {
1011                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1012                                         !ad_inlist( desc, rs->sr_attrs ) )
1013                                 {
1014                                         continue;
1015                                 }
1016                         } else {
1017                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1018                                         continue;
1019                                 }
1020                         }
1021                 }
1022
1023                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1024                         ACL_READ, &acl_state ) )
1025                 {
1026                         Debug( LDAP_DEBUG_ACL,
1027                                 "send_search_entry: conn %lu "
1028                                 "access to attribute %s not allowed\n",
1029                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1030
1031                         continue;
1032                 }
1033
1034                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1035                 if ( rc == -1 ) {
1036                         Debug( LDAP_DEBUG_ANY,
1037                                 "send_search_entry: conn %lu  "
1038                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1039
1040                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1041                         send_ldap_error( op, rs, LDAP_OTHER,
1042                                 "encoding description error" );
1043                         goto error_return;
1044                 }
1045
1046                 if ( ! attrsonly ) {
1047                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1048                                 if ( ! access_allowed( op, rs->sr_entry,
1049                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1050                                 {
1051                                         Debug( LDAP_DEBUG_ACL,
1052                                                 "send_search_entry: conn %lu "
1053                                                 "access to %s, value %d not allowed\n",
1054                                                 op->o_connid, desc->ad_cname.bv_val, i );
1055
1056                                         continue;
1057                                 }
1058
1059                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1060                                         continue;
1061                                 }
1062
1063                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1064                                         Debug( LDAP_DEBUG_ANY,
1065                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1066                                                 op->o_connid, 0, 0 );
1067
1068                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1069                                         send_ldap_error( op, rs, LDAP_OTHER,
1070                                                 "encoding values error" );
1071                                         goto error_return;
1072                                 }
1073                         }
1074                 }
1075
1076                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1077                         Debug( LDAP_DEBUG_ANY,
1078                                 "send_search_entry: conn %lu  ber_printf failed\n",
1079                                 op->o_connid, 0, 0 );
1080
1081                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1082                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1083                         goto error_return;
1084                 }
1085         }
1086
1087         /* free e_flags */
1088         if ( e_flags ) {
1089                 slap_sl_free( e_flags, op->o_tmpmemctx );
1090                 e_flags = NULL;
1091         }
1092
1093         rc = ber_printf( ber, /*{{*/ "}N}" );
1094
1095         if( rc != -1 ) {
1096                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1097         }
1098
1099         if( rc != -1 ) {
1100 #ifdef LDAP_CONNECTIONLESS
1101                 if( op->o_conn && op->o_conn->c_is_udp ) {
1102                         if ( op->o_protocol != LDAP_VERSION2 ) {
1103                                 rc = ber_printf( ber, /*{*/ "N}" );
1104                         }
1105                 } else
1106 #endif
1107                 if ( op->o_res_ber == NULL ) {
1108                         rc = ber_printf( ber, /*{*/ "N}" );
1109                 }
1110         }
1111
1112         if ( rc == -1 ) {
1113                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1114
1115                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1116                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1117                 rc = 1;
1118                 goto error_return;
1119         }
1120
1121         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1122                 be_entry_release_rw( op, rs->sr_entry, 0 );
1123                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1124                 rs->sr_entry = NULL;
1125         }
1126
1127         if ( op->o_res_ber == NULL ) {
1128                 if ( --op->ors_slimit == -1 ) {
1129                         rc = SLAPD_SEND_SIZELIMIT;
1130                         ber_free_buf( ber );
1131                         /* putback, so dumb backends that don't
1132                          * check sizelimit won't at least return
1133                          * more than expected... */
1134                         op->ors_slimit++;
1135                         goto error_return;
1136                 }
1137                 bytes = send_ldap_ber( op->o_conn, ber );
1138                 ber_free_buf( ber );
1139
1140                 if ( bytes < 0 ) {
1141                         Debug( LDAP_DEBUG_ANY,
1142                                 "send_search_entry: conn %lu  ber write failed.\n",
1143                                 op->o_connid, 0, 0 );
1144
1145                         rc = -1;
1146                         goto error_return;
1147                 }
1148                 rs->sr_nentries++;
1149
1150                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1151                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1152                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1153                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1154                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1155         }
1156
1157         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1158             op->o_log_prefix, edn, 0, 0, 0 );
1159
1160         Debug( LDAP_DEBUG_TRACE,
1161                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1162
1163         rc = 0;
1164
1165 error_return:;
1166         if ( op->o_callback ) {
1167                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1168
1169                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1170                         sc_next = op->o_callback->sc_next;
1171                         if ( op->o_callback->sc_cleanup ) {
1172                                 (void)op->o_callback->sc_cleanup( op, rs );
1173                                 if ( op->o_callback != *sc_prev ) {
1174                                         *sc_prev = op->o_callback;
1175                                 }
1176                                 if ( !op->o_callback ) break;
1177                         }
1178                         sc_prev = &op->o_callback->sc_next;
1179                 }
1180                 op->o_callback = sc;
1181         }
1182
1183         if ( e_flags ) {
1184                 slap_sl_free( e_flags, op->o_tmpmemctx );
1185         }
1186
1187         if ( rs->sr_operational_attrs ) {
1188                 attrs_free( rs->sr_operational_attrs );
1189                 rs->sr_operational_attrs = NULL;
1190         }
1191         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1192
1193         /* FIXME: I think rs->sr_type should be explicitly set to
1194          * REP_SEARCH here. That's what it was when we entered this
1195          * function. send_ldap_error may have changed it, but we
1196          * should set it back so that the cleanup functions know
1197          * what they're doing.
1198          */
1199         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1200                 && rs->sr_entry
1201                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1202         {
1203                 entry_free( rs->sr_entry );
1204                 rs->sr_entry = NULL;
1205                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1206         }
1207
1208         return( rc );
1209 }
1210
1211 int
1212 slap_send_search_reference( Operation *op, SlapReply *rs )
1213 {
1214         BerElementBuffer berbuf;
1215         BerElement      *ber = (BerElement *) &berbuf;
1216         int rc = 0;
1217         int bytes;
1218
1219         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1220         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1221
1222         rs->sr_type = REP_SEARCHREF;
1223         if ( op->o_callback ) {
1224                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1225
1226                 rc = SLAP_CB_CONTINUE;
1227                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1228                         sc_next = op->o_callback->sc_next;
1229                         if ( op->o_callback->sc_response ) {
1230                                 rc = op->o_callback->sc_response( op, rs );
1231                                 if ( op->o_callback != *sc_prev ) {
1232                                         *sc_prev = op->o_callback;
1233                                 }
1234                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
1235                         }
1236                         sc_prev = &op->o_callback->sc_next;
1237                 }
1238
1239                 op->o_callback = sc;
1240                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1241         }
1242
1243         Debug( LDAP_DEBUG_TRACE,
1244                 "=> send_search_reference: dn=\"%s\"\n",
1245                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1246
1247         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1248                 ad_entry, NULL, ACL_READ, NULL ) )
1249         {
1250                 Debug( LDAP_DEBUG_ACL,
1251                         "send_search_reference: access to entry not allowed\n",
1252                     0, 0, 0 );
1253                 rc = 1;
1254                 goto rel;
1255         }
1256
1257         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1258                 ad_ref, NULL, ACL_READ, NULL ) )
1259         {
1260                 Debug( LDAP_DEBUG_ACL,
1261                         "send_search_reference: access "
1262                         "to reference not allowed\n",
1263                     0, 0, 0 );
1264                 rc = 1;
1265                 goto rel;
1266         }
1267
1268 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1269         if( op->o_domain_scope ) {
1270                 Debug( LDAP_DEBUG_ANY,
1271                         "send_search_reference: domainScope control in (%s)\n",
1272                         rs->sr_entry->e_dn, 0, 0 );
1273                 rc = 0;
1274                 goto rel;
1275         }
1276 #endif
1277
1278         if( rs->sr_ref == NULL ) {
1279                 Debug( LDAP_DEBUG_ANY,
1280                         "send_search_reference: null ref in (%s)\n",
1281                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1282                 rc = 1;
1283                 goto rel;
1284         }
1285
1286         if( op->o_protocol < LDAP_VERSION3 ) {
1287                 rc = 0;
1288                 /* save the references for the result */
1289                 if( rs->sr_ref[0].bv_val != NULL ) {
1290                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1291                                 rc = LDAP_OTHER;
1292                 }
1293                 goto rel;
1294         }
1295
1296 #ifdef LDAP_CONNECTIONLESS
1297         if( op->o_conn && op->o_conn->c_is_udp ) {
1298                 ber = op->o_res_ber;
1299         } else
1300 #endif
1301         {
1302                 ber_init_w_nullc( ber, LBER_USE_DER );
1303                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1304         }
1305
1306         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1307                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1308
1309         if( rc != -1 ) {
1310                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1311         }
1312
1313         if( rc != -1 ) {
1314                 rc = ber_printf( ber, /*"{"*/ "N}" );
1315         }
1316
1317         if ( rc == -1 ) {
1318                 Debug( LDAP_DEBUG_ANY,
1319                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1320
1321 #ifdef LDAP_CONNECTIONLESS
1322                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1323 #endif
1324                 ber_free_buf( ber );
1325                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1326                 goto rel;
1327         }
1328
1329         rc = 0;
1330         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1331                 be_entry_release_rw( op, rs->sr_entry, 0 );
1332                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1333                 rs->sr_entry = NULL;
1334         }
1335
1336 #ifdef LDAP_CONNECTIONLESS
1337         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1338 #endif
1339         bytes = send_ldap_ber( op->o_conn, ber );
1340         ber_free_buf( ber );
1341
1342         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1343         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1344         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1345         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1346         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1347 #ifdef LDAP_CONNECTIONLESS
1348         }
1349 #endif
1350         if ( rs->sr_ref != NULL ) {
1351                 int     r;
1352
1353                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1354                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1355                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1356                                 0, 0 );
1357                 }
1358
1359         } else {
1360                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1361                         op->o_log_prefix, 0, 0, 0, 0 );
1362         }
1363
1364         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1365
1366 rel:
1367         if ( op->o_callback ) {
1368                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1369
1370                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1371                         sc_next = op->o_callback->sc_next;
1372                         if ( op->o_callback->sc_cleanup ) {
1373                                 (void)op->o_callback->sc_cleanup( op, rs );
1374                                 if ( op->o_callback != *sc_prev ) {
1375                                         *sc_prev = op->o_callback;
1376                                 }
1377                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
1378                         }
1379                         sc_prev = &op->o_callback->sc_next;
1380                 }
1381                 op->o_callback = sc;
1382         }
1383
1384         return rc;
1385 }
1386
1387 int
1388 str2result(
1389     char        *s,
1390     int         *code,
1391     char        **matched,
1392     char        **info )
1393 {
1394         int     rc;
1395         char    *c;
1396
1397         *code = LDAP_SUCCESS;
1398         *matched = NULL;
1399         *info = NULL;
1400
1401         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1402                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1403                     s, 0, 0 );
1404
1405                 return( -1 );
1406         }
1407
1408         rc = 0;
1409         while ( (s = strchr( s, '\n' )) != NULL ) {
1410                 *s++ = '\0';
1411                 if ( *s == '\0' ) {
1412                         break;
1413                 }
1414                 if ( (c = strchr( s, ':' )) != NULL ) {
1415                         c++;
1416                 }
1417
1418                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1419                         if ( c != NULL && lutil_atoi( code, c ) != 0 ) {
1420                                 goto bailout;
1421                         }
1422                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1423                         if ( c != NULL ) {
1424                                 *matched = c;
1425                         }
1426                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1427                         if ( c != NULL ) {
1428                                 *info = c;
1429                         }
1430                 } else {
1431 bailout:;
1432                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1433                             s, 0, 0 );
1434
1435                         rc = -1;
1436                 }
1437         }
1438
1439         return( rc );
1440 }
1441
1442 int slap_read_controls(
1443         Operation *op,
1444         SlapReply *rs,
1445         Entry *e,
1446         const struct berval *oid,
1447         LDAPControl **ctrl )
1448 {
1449         int rc;
1450         struct berval bv;
1451         BerElementBuffer berbuf;
1452         BerElement *ber = (BerElement *) &berbuf;
1453         LDAPControl c;
1454         Operation myop;
1455
1456         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1457                 oid->bv_val, e->e_dn, 0 );
1458
1459         rs->sr_entry = e;
1460         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1461                 op->o_preread_attrs : op->o_postread_attrs;
1462
1463         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1464         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1465
1466         ber_init2( ber, &bv, LBER_USE_DER );
1467         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1468
1469         /* create new operation */
1470         myop = *op;
1471         myop.o_bd = NULL;
1472         myop.o_res_ber = ber;
1473         myop.o_callback = NULL;
1474
1475         rc = slap_send_search_entry( &myop, rs );
1476         if( rc ) return rc;
1477
1478         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1479
1480         if( rc == LBER_ERROR ) return LDAP_OTHER;
1481
1482         c.ldctl_oid = oid->bv_val;
1483         c.ldctl_iscritical = 0;
1484
1485         if ( *ctrl == NULL ) {
1486                 /* first try */
1487                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1488         } else {
1489                 /* retry: free previous try */
1490                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1491         }
1492
1493         **ctrl = c;
1494         return LDAP_SUCCESS;
1495 }
1496
1497 /* Map API errors to protocol errors... */
1498 int
1499 slap_map_api2result( SlapReply *rs )
1500 {
1501         switch(rs->sr_err) {
1502         case LDAP_SERVER_DOWN:
1503                 return LDAP_UNAVAILABLE;
1504         case LDAP_LOCAL_ERROR:
1505                 return LDAP_OTHER;
1506         case LDAP_ENCODING_ERROR:
1507         case LDAP_DECODING_ERROR:
1508                 return LDAP_PROTOCOL_ERROR;
1509         case LDAP_TIMEOUT:
1510                 return LDAP_UNAVAILABLE;
1511         case LDAP_AUTH_UNKNOWN:
1512                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1513         case LDAP_FILTER_ERROR:
1514                 rs->sr_text = "Filter error";
1515                 return LDAP_OTHER;
1516         case LDAP_USER_CANCELLED:
1517                 rs->sr_text = "User cancelled";
1518                 return LDAP_OTHER;
1519         case LDAP_PARAM_ERROR:
1520                 return LDAP_PROTOCOL_ERROR;
1521         case LDAP_NO_MEMORY:
1522                 return LDAP_OTHER;
1523         case LDAP_CONNECT_ERROR:
1524                 return LDAP_UNAVAILABLE;
1525         case LDAP_NOT_SUPPORTED:
1526                 return LDAP_UNWILLING_TO_PERFORM;
1527         case LDAP_CONTROL_NOT_FOUND:
1528                 return LDAP_PROTOCOL_ERROR;
1529         case LDAP_NO_RESULTS_RETURNED:
1530                 return LDAP_NO_SUCH_OBJECT;
1531         case LDAP_MORE_RESULTS_TO_RETURN:
1532                 rs->sr_text = "More results to return";
1533                 return LDAP_OTHER;
1534         case LDAP_CLIENT_LOOP:
1535         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1536                 return LDAP_LOOP_DETECT;
1537         default:
1538                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1539                 return rs->sr_err;
1540         }
1541 }
1542
1543
1544 slap_mask_t
1545 slap_attr_flags( AttributeName *an )
1546 {
1547         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1548
1549         if ( an == NULL ) {
1550                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1551
1552         } else {
1553                 flags |= an_find( an, &AllOper )
1554                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1555                 flags |= an_find( an, &AllUser )
1556                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1557         }
1558
1559         return flags;
1560 }
1561