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 int
 666 slap_send_search_entry( Operation *op, SlapReply *rs )
 667 {
 668         BerElementBuffer berbuf;
 669         BerElement      *ber = (BerElement *) &berbuf;
 670         Attribute       *a;
 671         int             i, j, rc=-1, bytes;
 672         char            *edn;
 673         int             userattrs;
 674         AccessControlState acl_state = ACL_STATE_INIT;
 675         int                      attrsonly;
 676         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 677
 678         /* a_flags: array of flags telling if the i-th element will be
 679          *          returned or filtered out
 680          * e_flags: array of a_flags
 681          */
 682         char **e_flags = NULL;
 683
 684         rs->sr_type = REP_SEARCH;
 685
 686         /* eventually will loop through generated operational attribute types
 687          * currently implemented types include:
 688          *      entryDN, subschemaSubentry, and hasSubordinates */
 689         /* NOTE: moved before overlays callback circling because
 690          * they may modify entry and other stuff in rs */
 691         /* check for special all operational attributes ("+") type */
 692         /* FIXME: maybe we could se this flag at the operation level;
 693          * however, in principle the caller of send_search_entry() may
 694          * change the attribute list at each call */
 695         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 696
 697         rc = backend_operational( op, rs );
 698         if ( rc ) {
 699                 goto error_return;
 700         }
 701
 702         if ( op->o_callback ) {
 703                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 704
 705                 rc = SLAP_CB_CONTINUE;
 706                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next )
 707                 {
 708                         sc_next = op->o_callback->sc_next;
 709                         if ( op->o_callback->sc_response ) {
 710                                 rc = op->o_callback->sc_response( op, rs );
 711                                 if ( op->o_callback != *sc_prev ) {
 712                                         *sc_prev = op->o_callback;
 713                                 }
 714                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 715                         }
 716                         sc_prev = &op->o_callback->sc_next;
 717                 }
 718
 719                 op->o_callback = sc;
 720                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 721         }
 722
 723         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 724                 op->o_connid, rs->sr_entry->e_name.bv_val,
 725                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 726
 727         attrsonly = op->ors_attrsonly;
 728
 729         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 730                 Debug( LDAP_DEBUG_ACL,
 731                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 732                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 733
 734                 rc = 1;
 735                 goto error_return;
 736         }
 737
 738         edn = rs->sr_entry->e_nname.bv_val;
 739
 740         if ( op->o_res_ber ) {
 741                 /* read back control or LDAP_CONNECTIONLESS */
 742             ber = op->o_res_ber;
 743         } else {
 744                 struct berval   bv;
 745
 746                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 747                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 748
 749                 ber_init2( ber, &bv, LBER_USE_DER );
 750                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 751         }
 752
 753 #ifdef LDAP_CONNECTIONLESS
 754         if ( op->o_conn && op->o_conn->c_is_udp ) {
 755                 /* CONNECTIONLESS */
 756                 if ( op->o_protocol == LDAP_VERSION2 ) {
 757                 rc = ber_printf(ber, "t{O{" /*}}*/,
 758                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 759                 } else {
 760                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 761                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 762                 }
 763         } else
 764 #endif
 765         if ( op->o_res_ber ) {
 766                 /* read back control */
 767             rc = ber_printf( ber, "{O{" /*}}*/, &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
 773         if ( rc == -1 ) {
 774                 Debug( LDAP_DEBUG_ANY,
 775                         "send_search_entry: conn %lu  ber_printf failed\n",
 776                         op->o_connid, 0, 0 );
 777
 778                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 779                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 780                 goto error_return;
 781         }
 782
 783         /* check for special all user attributes ("*") type */
 784         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 785
 786         /* create an array of arrays of flags. Each flag corresponds
 787          * to particular value of attribute and equals 1 if value matches
 788          * to ValuesReturnFilter or 0 if not
 789          */
 790         if ( op->o_vrFilter != NULL ) {
 791                 int     k = 0;
 792                 size_t  size;
 793
 794                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 795                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 796                 }
 797
 798                 size = i * sizeof(char *) + k;
 799                 if ( size > 0 ) {
 800                         char    *a_flags;
 801                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 802                         if( e_flags == NULL ) {
 803                         Debug( LDAP_DEBUG_ANY,
 804                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 805                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 806                                 ber_free( ber, 1 );
 807
 808                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 809                                 goto error_return;
 810                         }
 811                         a_flags = (char *)(e_flags + i);
 812                         memset( a_flags, 0, k );
 813                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 814                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 815                                 e_flags[i] = a_flags;
 816                                 a_flags += j;
 817                         }
 818
 819                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 820                         if ( rc == -1 ) {
 821                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 822                                         "conn %lu matched values filtering failed\n",
 823                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 824                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 825                                 send_ldap_error( op, rs, LDAP_OTHER,
 826                                         "matched values filtering error" );
 827                                 goto error_return;
 828                         }
 829                 }
 830         }
 831
 832         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 833                 AttributeDescription *desc = a->a_desc;
 834                 int finish = 0;
 835
 836                 if ( rs->sr_attrs == NULL ) {
 837                         /* all user attrs request, skip operational attributes */
 838                         if( is_at_operational( desc->ad_type ) ) {
 839                                 continue;
 840                         }
 841
 842                 } else {
 843                         /* specific attrs requested */
 844                         if ( is_at_operational( desc->ad_type ) ) {
 845                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 846                                         !ad_inlist( desc, rs->sr_attrs ) )
 847                                 {
 848                                         continue;
 849                                 }
 850
 851                         } else {
 852                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 853                                         continue;
 854                                 }
 855                         }
 856                 }
 857
 858                 if ( attrsonly ) {
 859                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 860                                 ACL_READ, &acl_state ) )
 861                         {
 862                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 863                                         "conn %lu access to attribute %s not allowed\n",
 864                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 865                                 continue;
 866                         }
 867
 868                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 869                                 Debug( LDAP_DEBUG_ANY,
 870                                         "send_search_entry: conn %lu  ber_printf failed\n",
 871                                         op->o_connid, 0, 0 );
 872
 873                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 874                                 send_ldap_error( op, rs, LDAP_OTHER,
 875                                         "encoding description error");
 876                                 goto error_return;
 877                         }
 878                         finish = 1;
 879
 880                 } else {
 881                         int first = 1;
 882                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 883                                 if ( ! access_allowed( op, rs->sr_entry,
 884                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 885                                 {
 886                                         Debug( LDAP_DEBUG_ACL,
 887                                                 "send_search_entry: conn %lu "
 888                                                 "access to attribute %s, value #%d not allowed\n",
 889                                                 op->o_connid, desc->ad_cname.bv_val, i );
 890
 891                                         continue;
 892                                 }
 893
 894                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 895                                         continue;
 896                                 }
 897
 898                                 if ( first ) {
 899                                         first = 0;
 900                                         finish = 1;
 901                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 902                                                 Debug( LDAP_DEBUG_ANY,
 903                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 904                                                         op->o_connid, 0, 0 );
 905
 906                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 907                                                 send_ldap_error( op, rs, LDAP_OTHER,
 908                                                         "encoding description error");
 909                                                 goto error_return;
 910                                         }
 911                                 }
 912                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 913                                         Debug( LDAP_DEBUG_ANY,
 914                                                 "send_search_entry: conn %lu  "
 915                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 916
 917                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 918                                         send_ldap_error( op, rs, LDAP_OTHER,
 919                                                 "encoding values error" );
 920                                         goto error_return;
 921                                 }
 922                         }
 923                 }
 924
 925                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 926                         Debug( LDAP_DEBUG_ANY,
 927                                 "send_search_entry: conn %lu ber_printf failed\n",
 928                                 op->o_connid, 0, 0 );
 929
 930                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 931                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 932                         goto error_return;
 933                 }
 934         }
 935
 936         /* NOTE: moved before overlays callback circling because
 937          * they may modify entry and other stuff in rs */
 938         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 939                 int     k = 0;
 940                 size_t  size;
 941
 942                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 943                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 944                 }
 945
 946                 size = i * sizeof(char *) + k;
 947                 if ( size > 0 ) {
 948                         char    *a_flags, **tmp;
 949
 950                         /*
 951                          * Reuse previous memory - we likely need less space
 952                          * for operational attributes
 953                          */
 954                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 955                                 op->o_tmpmemctx );
 956                         if ( tmp == NULL ) {
 957                                 Debug( LDAP_DEBUG_ANY,
 958                                         "send_search_entry: conn %lu "
 959                                         "not enough memory "
 960                                         "for matched values filtering\n",
 961                                         op->o_connid, 0, 0 );
 962                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 963                                 send_ldap_error( op, rs, LDAP_OTHER,
 964                                         "not enough memory for matched values filtering" );
 965                                 goto error_return;
 966                         }
 967                         e_flags = tmp;
 968                         a_flags = (char *)(e_flags + i);
 969                         memset( a_flags, 0, k );
 970                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 971                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 972                                 e_flags[i] = a_flags;
 973                                 a_flags += j;
 974                         }
 975                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
 976
 977                         if ( rc == -1 ) {
 978                                 Debug( LDAP_DEBUG_ANY,
 979                                         "send_search_entry: conn %lu "
 980                                         "matched values filtering failed\n",
 981                                         op->o_connid ? op->o_connid : 0, 0, 0);
 982                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 983                                 send_ldap_error( op, rs, LDAP_OTHER,
 984                                         "matched values filtering error" );
 985                                 goto error_return;
 986                         }
 987                 }
 988         }
 989
 990         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
 991                 AttributeDescription *desc = a->a_desc;
 992
 993                 if ( rs->sr_attrs == NULL ) {
 994                         /* all user attrs request, skip operational attributes */
 995                         if( is_at_operational( desc->ad_type ) ) {
 996                                 continue;
 997                         }
 998
 999                 } else {
1000                         /* specific attrs requested */
1001                         if( is_at_operational( desc->ad_type ) ) {
1002                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1003                                         !ad_inlist( desc, rs->sr_attrs ) )
1004                                 {
1005                                         continue;
1006                                 }
1007                         } else {
1008                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1009                                         continue;
1010                                 }
1011                         }
1012                 }
1013
1014                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1015                         ACL_READ, &acl_state ) )
1016                 {
1017                         Debug( LDAP_DEBUG_ACL,
1018                                 "send_search_entry: conn %lu "
1019                                 "access to attribute %s not allowed\n",
1020                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1021
1022                         continue;
1023                 }
1024
1025                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1026                 if ( rc == -1 ) {
1027                         Debug( LDAP_DEBUG_ANY,
1028                                 "send_search_entry: conn %lu  "
1029                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1030
1031                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1032                         send_ldap_error( op, rs, LDAP_OTHER,
1033                                 "encoding description error" );
1034                         goto error_return;
1035                 }
1036
1037                 if ( ! attrsonly ) {
1038                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1039                                 if ( ! access_allowed( op, rs->sr_entry,
1040                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1041                                 {
1042                                         Debug( LDAP_DEBUG_ACL,
1043                                                 "send_search_entry: conn %lu "
1044                                                 "access to %s, value %d not allowed\n",
1045                                                 op->o_connid, desc->ad_cname.bv_val, i );
1046
1047                                         continue;
1048                                 }
1049
1050                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1051                                         continue;
1052                                 }
1053
1054                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1055                                         Debug( LDAP_DEBUG_ANY,
1056                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1057                                                 op->o_connid, 0, 0 );
1058
1059                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1060                                         send_ldap_error( op, rs, LDAP_OTHER,
1061                                                 "encoding values error" );
1062                                         goto error_return;
1063                                 }
1064                         }
1065                 }
1066
1067                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1068                         Debug( LDAP_DEBUG_ANY,
1069                                 "send_search_entry: conn %lu  ber_printf failed\n",
1070                                 op->o_connid, 0, 0 );
1071
1072                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1073                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1074                         goto error_return;
1075                 }
1076         }
1077
1078         /* free e_flags */
1079         if ( e_flags ) {
1080                 slap_sl_free( e_flags, op->o_tmpmemctx );
1081                 e_flags = NULL;
1082         }
1083
1084         rc = ber_printf( ber, /*{{*/ "}N}" );
1085
1086         if( rc != -1 ) {
1087                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1088         }
1089
1090         if( rc != -1 ) {
1091 #ifdef LDAP_CONNECTIONLESS
1092                 if( op->o_conn && op->o_conn->c_is_udp ) {
1093                         if ( op->o_protocol != LDAP_VERSION2 ) {
1094                                 rc = ber_printf( ber, /*{*/ "N}" );
1095                         }
1096                 } else
1097 #endif
1098                 if ( op->o_res_ber == NULL ) {
1099                         rc = ber_printf( ber, /*{*/ "N}" );
1100                 }
1101         }
1102
1103         if ( rc == -1 ) {
1104                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1105
1106                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1107                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1108                 rc = 1;
1109                 goto error_return;
1110         }
1111
1112         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1113                 be_entry_release_rw( op, rs->sr_entry, 0 );
1114                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1115                 rs->sr_entry = NULL;
1116         }
1117
1118         if ( op->o_res_ber == NULL ) {
1119                 bytes = send_ldap_ber( op->o_conn, ber );
1120                 ber_free_buf( ber );
1121
1122                 if ( bytes < 0 ) {
1123                         Debug( LDAP_DEBUG_ANY,
1124                                 "send_search_entry: conn %lu  ber write failed.\n",
1125                                 op->o_connid, 0, 0 );
1126
1127                         rc = -1;
1128                         goto error_return;
1129                 }
1130                 rs->sr_nentries++;
1131
1132                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1133                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1134                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1135                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1136                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1137         }
1138
1139         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1140             op->o_log_prefix, edn, 0, 0, 0 );
1141
1142         Debug( LDAP_DEBUG_TRACE,
1143                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1144
1145         rc = 0;
1146
1147 error_return:;
1148         if ( op->o_callback ) {
1149                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1150
1151                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1152                         sc_next = op->o_callback->sc_next;
1153                         if ( op->o_callback->sc_cleanup ) {
1154                                 (void)op->o_callback->sc_cleanup( op, rs );
1155                                 if ( op->o_callback != *sc_prev ) {
1156                                         *sc_prev = op->o_callback;
1157                                 }
1158                                 if ( !op->o_callback ) break;
1159                         }
1160                         sc_prev = &op->o_callback->sc_next;
1161                 }
1162                 op->o_callback = sc;
1163         }
1164
1165         if ( e_flags ) {
1166                 slap_sl_free( e_flags, op->o_tmpmemctx );
1167         }
1168
1169         if ( rs->sr_operational_attrs ) {
1170                 attrs_free( rs->sr_operational_attrs );
1171                 rs->sr_operational_attrs = NULL;
1172         }
1173         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1174
1175         /* FIXME: I think rs->sr_type should be explicitly set to
1176          * REP_SEARCH here. That's what it was when we entered this
1177          * function. send_ldap_error may have changed it, but we
1178          * should set it back so that the cleanup functions know
1179          * what they're doing.
1180          */
1181         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1182                 && rs->sr_entry
1183                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1184         {
1185                 entry_free( rs->sr_entry );
1186                 rs->sr_entry = NULL;
1187                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1188         }
1189
1190         return( rc );
1191 }
1192
1193 int
1194 slap_send_search_reference( Operation *op, SlapReply *rs )
1195 {
1196         BerElementBuffer berbuf;
1197         BerElement      *ber = (BerElement *) &berbuf;
1198         int rc = 0;
1199         int bytes;
1200
1201         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1202         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1203
1204         rs->sr_type = REP_SEARCHREF;
1205         if ( op->o_callback ) {
1206                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1207
1208                 rc = SLAP_CB_CONTINUE;
1209                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1210                         sc_next = op->o_callback->sc_next;
1211                         if ( op->o_callback->sc_response ) {
1212                                 rc = op->o_callback->sc_response( op, rs );
1213                                 if ( op->o_callback != *sc_prev ) {
1214                                         *sc_prev = op->o_callback;
1215                                 }
1216                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
1217                         }
1218                         sc_prev = &op->o_callback->sc_next;
1219                 }
1220
1221                 op->o_callback = sc;
1222                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1223         }
1224
1225         Debug( LDAP_DEBUG_TRACE,
1226                 "=> send_search_reference: dn=\"%s\"\n",
1227                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1228
1229         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1230                 ad_entry, NULL, ACL_READ, NULL ) )
1231         {
1232                 Debug( LDAP_DEBUG_ACL,
1233                         "send_search_reference: access to entry not allowed\n",
1234                     0, 0, 0 );
1235                 rc = 1;
1236                 goto rel;
1237         }
1238
1239         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1240                 ad_ref, NULL, ACL_READ, NULL ) )
1241         {
1242                 Debug( LDAP_DEBUG_ACL,
1243                         "send_search_reference: access "
1244                         "to reference not allowed\n",
1245                     0, 0, 0 );
1246                 rc = 1;
1247                 goto rel;
1248         }
1249
1250 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1251         if( op->o_domain_scope ) {
1252                 Debug( LDAP_DEBUG_ANY,
1253                         "send_search_reference: domainScope control in (%s)\n",
1254                         rs->sr_entry->e_dn, 0, 0 );
1255                 rc = 0;
1256                 goto rel;
1257         }
1258 #endif
1259
1260         if( rs->sr_ref == NULL ) {
1261                 Debug( LDAP_DEBUG_ANY,
1262                         "send_search_reference: null ref in (%s)\n",
1263                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1264                 rc = 1;
1265                 goto rel;
1266         }
1267
1268         if( op->o_protocol < LDAP_VERSION3 ) {
1269                 rc = 0;
1270                 /* save the references for the result */
1271                 if( rs->sr_ref[0].bv_val != NULL ) {
1272                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1273                                 rc = LDAP_OTHER;
1274                 }
1275                 goto rel;
1276         }
1277
1278 #ifdef LDAP_CONNECTIONLESS
1279         if( op->o_conn && op->o_conn->c_is_udp ) {
1280                 ber = op->o_res_ber;
1281         } else
1282 #endif
1283         {
1284                 ber_init_w_nullc( ber, LBER_USE_DER );
1285                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1286         }
1287
1288         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1289                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1290
1291         if( rc != -1 ) {
1292                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1293         }
1294
1295         if( rc != -1 ) {
1296                 rc = ber_printf( ber, /*"{"*/ "N}" );
1297         }
1298
1299         if ( rc == -1 ) {
1300                 Debug( LDAP_DEBUG_ANY,
1301                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1302
1303 #ifdef LDAP_CONNECTIONLESS
1304                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1305 #endif
1306                 ber_free_buf( ber );
1307                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1308                 goto rel;
1309         }
1310
1311         rc = 0;
1312         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1313                 be_entry_release_rw( op, rs->sr_entry, 0 );
1314                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1315                 rs->sr_entry = NULL;
1316         }
1317
1318 #ifdef LDAP_CONNECTIONLESS
1319         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1320 #endif
1321         bytes = send_ldap_ber( op->o_conn, ber );
1322         ber_free_buf( ber );
1323
1324         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1325         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1326         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1327         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1328         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1329 #ifdef LDAP_CONNECTIONLESS
1330         }
1331 #endif
1332         if ( rs->sr_ref != NULL ) {
1333                 int     r;
1334
1335                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1336                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1337                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1338                                 0, 0 );
1339                 }
1340
1341         } else {
1342                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1343                         op->o_log_prefix, 0, 0, 0, 0 );
1344         }
1345
1346         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1347
1348 rel:
1349         if ( op->o_callback ) {
1350                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1351
1352                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1353                         sc_next = op->o_callback->sc_next;
1354                         if ( op->o_callback->sc_cleanup ) {
1355                                 (void)op->o_callback->sc_cleanup( op, rs );
1356                                 if ( op->o_callback != *sc_prev ) {
1357                                         *sc_prev = op->o_callback;
1358                                 }
1359                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
1360                         }
1361                         sc_prev = &op->o_callback->sc_next;
1362                 }
1363                 op->o_callback = sc;
1364         }
1365
1366         return rc;
1367 }
1368
1369 int
1370 str2result(
1371     char        *s,
1372     int         *code,
1373     char        **matched,
1374     char        **info )
1375 {
1376         int     rc;
1377         char    *c;
1378
1379         *code = LDAP_SUCCESS;
1380         *matched = NULL;
1381         *info = NULL;
1382
1383         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1384                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1385                     s, 0, 0 );
1386
1387                 return( -1 );
1388         }
1389
1390         rc = 0;
1391         while ( (s = strchr( s, '\n' )) != NULL ) {
1392                 *s++ = '\0';
1393                 if ( *s == '\0' ) {
1394                         break;
1395                 }
1396                 if ( (c = strchr( s, ':' )) != NULL ) {
1397                         c++;
1398                 }
1399
1400                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1401                         if ( c != NULL && lutil_atoi( code, c ) != 0 ) {
1402                                 goto bailout;
1403                         }
1404                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1405                         if ( c != NULL ) {
1406                                 *matched = c;
1407                         }
1408                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1409                         if ( c != NULL ) {
1410                                 *info = c;
1411                         }
1412                 } else {
1413 bailout:;
1414                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1415                             s, 0, 0 );
1416
1417                         rc = -1;
1418                 }
1419         }
1420
1421         return( rc );
1422 }
1423
1424 int slap_read_controls(
1425         Operation *op,
1426         SlapReply *rs,
1427         Entry *e,
1428         const struct berval *oid,
1429         LDAPControl **ctrl )
1430 {
1431         int rc;
1432         struct berval bv;
1433         BerElementBuffer berbuf;
1434         BerElement *ber = (BerElement *) &berbuf;
1435         LDAPControl c;
1436         Operation myop;
1437
1438         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1439                 oid->bv_val, e->e_dn, 0 );
1440
1441         rs->sr_entry = e;
1442         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1443                 op->o_preread_attrs : op->o_postread_attrs;
1444
1445         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1446         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1447
1448         ber_init2( ber, &bv, LBER_USE_DER );
1449         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1450
1451         /* create new operation */
1452         myop = *op;
1453         myop.o_bd = NULL;
1454         myop.o_res_ber = ber;
1455         myop.o_callback = NULL;
1456
1457         rc = slap_send_search_entry( &myop, rs );
1458         if( rc ) return rc;
1459
1460         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1461
1462         if( rc == LBER_ERROR ) return LDAP_OTHER;
1463
1464         c.ldctl_oid = oid->bv_val;
1465         c.ldctl_iscritical = 0;
1466
1467         if ( *ctrl == NULL ) {
1468                 /* first try */
1469                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1470         } else {
1471                 /* retry: free previous try */
1472                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1473         }
1474
1475         **ctrl = c;
1476         return LDAP_SUCCESS;
1477 }
1478
1479 /* Map API errors to protocol errors... */
1480 int
1481 slap_map_api2result( SlapReply *rs )
1482 {
1483         switch(rs->sr_err) {
1484         case LDAP_SERVER_DOWN:
1485                 return LDAP_UNAVAILABLE;
1486         case LDAP_LOCAL_ERROR:
1487                 return LDAP_OTHER;
1488         case LDAP_ENCODING_ERROR:
1489         case LDAP_DECODING_ERROR:
1490                 return LDAP_PROTOCOL_ERROR;
1491         case LDAP_TIMEOUT:
1492                 return LDAP_UNAVAILABLE;
1493         case LDAP_AUTH_UNKNOWN:
1494                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1495         case LDAP_FILTER_ERROR:
1496                 rs->sr_text = "Filter error";
1497                 return LDAP_OTHER;
1498         case LDAP_USER_CANCELLED:
1499                 rs->sr_text = "User cancelled";
1500                 return LDAP_OTHER;
1501         case LDAP_PARAM_ERROR:
1502                 return LDAP_PROTOCOL_ERROR;
1503         case LDAP_NO_MEMORY:
1504                 return LDAP_OTHER;
1505         case LDAP_CONNECT_ERROR:
1506                 return LDAP_UNAVAILABLE;
1507         case LDAP_NOT_SUPPORTED:
1508                 return LDAP_UNWILLING_TO_PERFORM;
1509         case LDAP_CONTROL_NOT_FOUND:
1510                 return LDAP_PROTOCOL_ERROR;
1511         case LDAP_NO_RESULTS_RETURNED:
1512                 return LDAP_NO_SUCH_OBJECT;
1513         case LDAP_MORE_RESULTS_TO_RETURN:
1514                 rs->sr_text = "More results to return";
1515                 return LDAP_OTHER;
1516         case LDAP_CLIENT_LOOP:
1517         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1518                 return LDAP_LOOP_DETECT;
1519         default:
1520                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1521                 return rs->sr_err;
1522         }
1523 }
1524
1525
1526 slap_mask_t
1527 slap_attr_flags( AttributeName *an )
1528 {
1529         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1530
1531         if ( an == NULL ) {
1532                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1533
1534         } else {
1535                 flags |= an_find( an, &AllOper )
1536                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1537                 flags |= an_find( an, &AllUser )
1538                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1539         }
1540
1541         return flags;
1542 }
1543