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 1998-2004 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/errno.h>
  33 #include <ac/string.h>
  34 #include <ac/ctype.h>
  35 #include <ac/time.h>
  36 #include <ac/unistd.h>
  37
  38 #include "slap.h"
  39
  40 #ifdef LDAP_SLAPI
  41 #include "slapi/slapi.h"
  42 #endif
  43
  44 const struct berval slap_dummy_bv = BER_BVNULL;
  45
  46 int slap_null_cb( Operation *op, SlapReply *rs )
  47 {
  48         return 0;
  49 }
  50
  51 int slap_freeself_cb( Operation *op, SlapReply *rs )
  52 {
  53         assert( op->o_callback );
  54
  55         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  56         op->o_callback = NULL;
  57
  58         return SLAP_CB_CONTINUE;
  59 }
  60
  61 int slap_replog_cb( Operation *op, SlapReply *rs )
  62 {
  63         if ( rs->sr_err == LDAP_SUCCESS ) {
  64                 replog( op );
  65         }
  66         return SLAP_CB_CONTINUE;
  67 }
  68
  69 static char *v2ref( BerVarray ref, const char *text )
  70 {
  71         size_t len = 0, i = 0;
  72         char *v2;
  73
  74         if(ref == NULL) {
  75                 if (text) {
  76                         return ch_strdup(text);
  77                 } else {
  78                         return NULL;
  79                 }
  80         }
  81
  82         if ( text != NULL ) {
  83                 len = strlen( text );
  84                 if (text[len-1] != '\n') {
  85                     i = 1;
  86                 }
  87         }
  88
  89         v2 = SLAP_MALLOC( len+i+sizeof("Referral:") );
  90         if( v2 == NULL ) {
  91                 Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
  92                 return NULL;
  93         }
  94
  95         if( text != NULL ) {
  96                 strcpy(v2, text);
  97                 if( i ) {
  98                         v2[len++] = '\n';
  99                 }
 100         }
 101         strcpy( v2+len, "Referral:" );
 102         len += sizeof("Referral:");
 103
 104         for( i=0; ref[i].bv_val != NULL; i++ ) {
 105                 v2 = SLAP_REALLOC( v2, len + ref[i].bv_len + 1 );
 106                 if( v2 == NULL ) {
 107                         Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
 108                         return NULL;
 109                 }
 110                 v2[len-1] = '\n';
 111                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
 112                 len += ref[i].bv_len;
 113                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
 114                         ++len;
 115                 }
 116         }
 117
 118         v2[len-1] = '\0';
 119         return v2;
 120 }
 121
 122 static ber_tag_t req2res( ber_tag_t tag )
 123 {
 124         switch( tag ) {
 125         case LDAP_REQ_ADD:
 126         case LDAP_REQ_BIND:
 127         case LDAP_REQ_COMPARE:
 128         case LDAP_REQ_EXTENDED:
 129         case LDAP_REQ_MODIFY:
 130         case LDAP_REQ_MODRDN:
 131                 tag++;
 132                 break;
 133
 134         case LDAP_REQ_DELETE:
 135                 tag = LDAP_RES_DELETE;
 136                 break;
 137
 138         case LDAP_REQ_ABANDON:
 139         case LDAP_REQ_UNBIND:
 140                 tag = LBER_SEQUENCE;
 141                 break;
 142
 143         case LDAP_REQ_SEARCH:
 144                 tag = LDAP_RES_SEARCH_RESULT;
 145                 break;
 146
 147         default:
 148                 tag = LBER_SEQUENCE;
 149         }
 150
 151         return tag;
 152 }
 153
 154 static long send_ldap_ber(
 155         Connection *conn,
 156         BerElement *ber )
 157 {
 158         ber_len_t bytes;
 159
 160         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 161
 162         /* write only one pdu at a time - wait til it's our turn */
 163         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 164
 165         /* lock the connection */
 166         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 167
 168         /* write the pdu */
 169         while( 1 ) {
 170                 int err;
 171                 ber_socket_t    sd;
 172
 173                 if ( connection_state_closing( conn ) ) {
 174                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 175                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 176
 177                         return 0;
 178                 }
 179
 180                 if ( ber_flush( conn->c_sb, ber, 0 ) == 0 ) {
 181                         break;
 182                 }
 183
 184                 err = errno;
 185
 186                 /*
 187                  * we got an error.  if it's ewouldblock, we need to
 188                  * wait on the socket being writable.  otherwise, figure
 189                  * it's a hard error and return.
 190                  */
 191
 192                 Debug( LDAP_DEBUG_CONNS, "ber_flush failed errno=%d reason=\"%s\"\n",
 193                     err, sock_errstr(err), 0 );
 194
 195                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 196                         connection_closing( conn );
 197
 198                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 199                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 200
 201                         return( -1 );
 202                 }
 203
 204                 /* wait for socket to be write-ready */
 205                 conn->c_writewaiter = 1;
 206                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 207                 slapd_set_write( sd, 1 );
 208
 209                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 210                 conn->c_writewaiter = 0;
 211         }
 212
 213         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 214         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 215
 216         return bytes;
 217 }
 218
 219 static int
 220 send_ldap_control( BerElement *ber, LDAPControl *c )
 221 {
 222         int rc;
 223
 224         assert( c != NULL );
 225
 226         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 227
 228         if( c->ldctl_iscritical ) {
 229                 rc = ber_printf( ber, "b",
 230                         (ber_int_t) c->ldctl_iscritical ) ;
 231                 if( rc == -1 ) return rc;
 232         }
 233
 234         if( c->ldctl_value.bv_val != NULL ) {
 235                 rc = ber_printf( ber, "O", &c->ldctl_value );
 236                 if( rc == -1 ) return rc;
 237         }
 238
 239         rc = ber_printf( ber, /*{*/"N}" );
 240         if( rc == -1 ) return rc;
 241
 242         return 0;
 243 }
 244
 245 static int
 246 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 247 {
 248         int rc;
 249 #ifdef LDAP_SLAPI
 250         LDAPControl **sctrls = NULL;
 251
 252         /*
 253          * Retrieve any additional controls that may be set by the
 254          * plugin.
 255          */
 256
 257         if ( o->o_pb && slapi_pblock_get( o->o_pb, SLAPI_RESCONTROLS, &sctrls ) != 0 ) {
 258                 sctrls = NULL;
 259         }
 260
 261         if ( c == NULL && sctrls == NULL ) return 0;
 262 #else
 263         if( c == NULL ) return 0;
 264 #endif /* LDAP_SLAPI */
 265
 266         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 267         if( rc == -1 ) return rc;
 268
 269 #ifdef LDAP_SLAPI
 270         if ( c != NULL )
 271 #endif /* LDAP_SLAPI */
 272         for( ; *c != NULL; c++) {
 273                 rc = send_ldap_control( ber, *c );
 274                 if( rc == -1 ) return rc;
 275         }
 276
 277 #ifdef LDAP_SLAPI
 278         if ( sctrls != NULL ) {
 279                 for ( c = sctrls; *c != NULL; c++ ) {
 280                         rc = send_ldap_control( ber, *c );
 281                         if( rc == -1 ) return rc;
 282                 }
 283         }
 284 #endif /* LDAP_SLAPI */
 285
 286         rc = ber_printf( ber, /*{*/"N}" );
 287
 288         return rc;
 289 }
 290
 291 static int
 292 send_ldap_response(
 293         Operation *op,
 294         SlapReply *rs )
 295 {
 296         BerElementBuffer berbuf;
 297         BerElement      *ber = (BerElement *) &berbuf;
 298         int             rc = LDAP_SUCCESS;
 299         long    bytes;
 300
 301         if ( op->o_callback ) {
 302                 int             first = 1;
 303                 slap_callback   *sc = op->o_callback,
 304                                 *sc_next = op->o_callback;
 305
 306                 rc = SLAP_CB_CONTINUE;
 307                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 308                         sc_next = op->o_callback->sc_next;
 309                         if ( op->o_callback->sc_response ) {
 310                                 rc = op->o_callback->sc_response( op, rs );
 311                                 if ( first && op->o_callback == NULL ) {
 312                                         sc = NULL;
 313                                 }
 314                                 if ( rc != SLAP_CB_CONTINUE ) break;
 315                         }
 316                         first = 0;
 317                 }
 318
 319                 op->o_callback = sc;
 320                 if ( rc != SLAP_CB_CONTINUE ) goto clean2;
 321         }
 322
 323 #ifdef LDAP_CONNECTIONLESS
 324         if (op->o_conn && op->o_conn->c_is_udp)
 325                 ber = op->o_res_ber;
 326         else
 327 #endif
 328         {
 329                 ber_init_w_nullc( ber, LBER_USE_DER );
 330                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 331         }
 332
 333         Debug( LDAP_DEBUG_TRACE,
 334                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 335                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 336
 337         if( rs->sr_ref ) {
 338                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 339                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 340                         NULL, NULL );
 341         }
 342
 343 #ifdef LDAP_CONNECTIONLESS
 344         if (op->o_conn && op->o_conn->c_is_udp &&
 345                 op->o_protocol == LDAP_VERSION2 )
 346         {
 347                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 348                         rs->sr_tag, rs->sr_err,
 349                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 350                 rs->sr_text == NULL ? "" : rs->sr_text );
 351         } else
 352 #endif
 353         if ( rs->sr_type == REP_INTERMEDIATE ) {
 354             rc = ber_printf( ber, "{it{" /*"}}"*/,
 355                         rs->sr_msgid, rs->sr_tag );
 356
 357         } else {
 358             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 359                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 360                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 361                 rs->sr_text == NULL ? "" : rs->sr_text );
 362         }
 363
 364         if( rc != -1 ) {
 365                 if ( rs->sr_ref != NULL ) {
 366                         assert( rs->sr_err == LDAP_REFERRAL );
 367                         rc = ber_printf( ber, "t{W}",
 368                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 369                 } else {
 370                         assert( rs->sr_err != LDAP_REFERRAL );
 371                 }
 372         }
 373
 374         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 375                 rc = ber_printf( ber, "tO",
 376                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 377         }
 378
 379         if( rc != -1 &&
 380                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 381         {
 382                 if ( rs->sr_rspoid != NULL ) {
 383                         rc = ber_printf( ber, "ts",
 384                                 LDAP_TAG_EXOP_RES_OID, rs->sr_rspoid );
 385                 }
 386                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 387                         rc = ber_printf( ber, "tO",
 388                                 LDAP_TAG_EXOP_RES_VALUE, rs->sr_rspdata );
 389                 }
 390         }
 391
 392         if( rc != -1 ) {
 393                 rc = ber_printf( ber, /*"{"*/ "N}" );
 394         }
 395
 396         if( rc != -1 ) {
 397                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 398         }
 399
 400         if( rc != -1 ) {
 401                 rc = ber_printf( ber, /*"{"*/ "N}" );
 402         }
 403
 404 #ifdef LDAP_CONNECTIONLESS
 405         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 406                 && rc != -1 )
 407         {
 408                 rc = ber_printf( ber, /*"{"*/ "N}" );
 409         }
 410 #endif
 411
 412         if ( rc == -1 ) {
 413                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 414
 415 #ifdef LDAP_CONNECTIONLESS
 416                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 417 #endif
 418                 {
 419                         ber_free_buf( ber );
 420                 }
 421                 goto cleanup;
 422         }
 423
 424         /* send BER */
 425         bytes = send_ldap_ber( op->o_conn, ber );
 426 #ifdef LDAP_CONNECTIONLESS
 427         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 428 #endif
 429         {
 430                 ber_free_buf( ber );
 431         }
 432
 433         if ( bytes < 0 ) {
 434                 Debug( LDAP_DEBUG_ANY,
 435                         "send_ldap_response: ber write failed\n",
 436                         0, 0, 0 );
 437
 438                 goto cleanup;
 439         }
 440
 441 #ifdef LDAP_SLAPI
 442         if ( op->o_pb ) {
 443                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE, (void *)rs->sr_err );
 444                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 445                         (void *)rs->sr_matched );
 446                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT, (void *)rs->sr_text );
 447         }
 448 #endif /* LDAP_SLAPI */
 449
 450         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 451 #ifdef HAVE_GMP
 452         mpz_add_ui( slap_counters.sc_pdu, slap_counters.sc_pdu, 1 );
 453         mpz_add_ui( slap_counters.sc_bytes, slap_counters.sc_bytes, bytes );
 454 #else /* ! HAVE_GMP */
 455         slap_counters.sc_bytes += bytes;
 456         slap_counters.sc_pdu++;
 457 #endif /* ! HAVE_GMP */
 458         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 459
 460 cleanup:;
 461         /* Tell caller that we did this for real, as opposed to being
 462          * overridden by a callback
 463          */
 464         rc = SLAP_CB_CONTINUE;
 465
 466 clean2:;
 467         if ( op->o_callback ) {
 468                 int             first = 1;
 469                 slap_callback   *sc = op->o_callback,
 470                                 *sc_next = op->o_callback;
 471
 472                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 473                         sc_next = op->o_callback->sc_next;
 474                         if ( op->o_callback->sc_cleanup ) {
 475                                 (void)op->o_callback->sc_cleanup( op, rs );
 476                                 if ( first && op->o_callback == NULL ) {
 477                                         sc = NULL;
 478                                 }
 479                         }
 480                         first = 0;
 481                 }
 482
 483                 op->o_callback = sc;
 484         }
 485
 486
 487         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 488                 free( (char *)rs->sr_matched );
 489                 rs->sr_matched = NULL;
 490         }
 491
 492         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 493                 ber_bvarray_free( rs->sr_ref );
 494                 rs->sr_ref = NULL;
 495         }
 496
 497         return rc;
 498 }
 499
 500
 501 void
 502 send_ldap_disconnect( Operation *op, SlapReply *rs )
 503 {
 504 #define LDAP_UNSOLICITED_ERROR(e) \
 505         (  (e) == LDAP_PROTOCOL_ERROR \
 506         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 507         || (e) == LDAP_UNAVAILABLE )
 508
 509         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 510
 511         rs->sr_type = REP_EXTENDED;
 512
 513         Debug( LDAP_DEBUG_TRACE,
 514                 "send_ldap_disconnect %d:%s\n",
 515                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 516
 517         if ( op->o_protocol < LDAP_VERSION3 ) {
 518                 rs->sr_rspoid = NULL;
 519                 rs->sr_tag = req2res( op->o_tag );
 520                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 521
 522         } else {
 523                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 524                 rs->sr_tag = LDAP_RES_EXTENDED;
 525                 rs->sr_msgid = 0;
 526         }
 527
 528         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 529                 Statslog( LDAP_DEBUG_STATS,
 530                         "conn=%lu op=%lu DISCONNECT tag=%lu err=%d text=%s\n",
 531                         op->o_connid, op->o_opid, rs->sr_tag, rs->sr_err,
 532                         rs->sr_text ? rs->sr_text : "" );
 533         }
 534 }
 535
 536 void
 537 slap_send_ldap_result( Operation *op, SlapReply *rs )
 538 {
 539         char *tmp = NULL;
 540         const char *otext = rs->sr_text;
 541         BerVarray oref = rs->sr_ref;
 542
 543         rs->sr_type = REP_RESULT;
 544
 545         assert( !LDAP_API_ERROR( rs->sr_err ));
 546
 547         Debug( LDAP_DEBUG_TRACE,
 548                 "send_ldap_result: conn=%lu op=%lu p=%d\n",
 549                 op->o_connid, op->o_opid, op->o_protocol );
 550
 551         Debug( LDAP_DEBUG_ARGS,
 552                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 553                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 554                 rs->sr_text ? rs->sr_text : "" );
 555
 556
 557         if( rs->sr_ref ) {
 558                 Debug( LDAP_DEBUG_ARGS,
 559                         "send_ldap_result: referral=\"%s\"\n",
 560                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 561                         NULL, NULL );
 562         }
 563
 564         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 565
 566         if ( rs->sr_err == LDAP_REFERRAL ) {
 567 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 568                 if( op->o_domain_scope ) {
 569                         rs->sr_ref = NULL;
 570                 }
 571 #endif
 572                 if( rs->sr_ref == NULL ) {
 573                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 574                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 575                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 576                 }
 577         }
 578
 579 #ifdef LDAP_SLAPI
 580         /*
 581          * Call pre-result plugins. To avoid infinite recursion plugins
 582          * should just set SLAPI_RESULT_CODE rather than sending a
 583          * result if they wish to change the result.
 584          */
 585         if ( op->o_pb != NULL ) {
 586                 slapi_int_pblock_set_operation( op->o_pb, op );
 587                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE,
 588                         (void *)rs->sr_err );
 589                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT,
 590                         (void *)rs->sr_text );
 591                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 592                         (void *)rs->sr_matched );
 593
 594                 (void) slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_PRE_RESULT_FN,
 595                         op->o_pb );
 596         }
 597 #endif /* LDAP_SLAPI */
 598
 599         if ( op->o_protocol < LDAP_VERSION3 ) {
 600                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 601                 rs->sr_text = tmp;
 602                 rs->sr_ref = NULL;
 603         }
 604
 605         rs->sr_tag = req2res( op->o_tag );
 606         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 607
 608         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 609                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 610                         char nbuf[64];
 611                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 612                                 rs->sr_err, rs->sr_nentries );
 613
 614                         Statslog( LDAP_DEBUG_STATS,
 615                         "conn=%lu op=%lu SEARCH RESULT tag=%lu err=%s text=%s\n",
 616                                 op->o_connid, op->o_opid, rs->sr_tag, nbuf,
 617                                 rs->sr_text ? rs->sr_text : "" );
 618                 } else {
 619                         Statslog( LDAP_DEBUG_STATS,
 620                                 "conn=%lu op=%lu RESULT tag=%lu err=%d text=%s\n",
 621                                 op->o_connid, op->o_opid, rs->sr_tag, rs->sr_err,
 622                                 rs->sr_text ? rs->sr_text : "" );
 623                 }
 624         }
 625
 626         if( tmp != NULL ) ch_free(tmp);
 627         rs->sr_text = otext;
 628         rs->sr_ref = oref;
 629 }
 630
 631 void
 632 send_ldap_sasl( Operation *op, SlapReply *rs )
 633 {
 634         rs->sr_type = REP_SASL;
 635         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 636                 rs->sr_err,
 637                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 638
 639         rs->sr_tag = req2res( op->o_tag );
 640         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 641
 642         send_ldap_response( op, rs );
 643 }
 644
 645 void
 646 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 647 {
 648         rs->sr_type = REP_EXTENDED;
 649
 650         Debug( LDAP_DEBUG_TRACE,
 651                 "send_ldap_extended: 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
 656         rs->sr_tag = req2res( op->o_tag );
 657         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 658
 659         send_ldap_response( op, rs );
 660 }
 661
 662 void
 663 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 664 {
 665         rs->sr_type = REP_INTERMEDIATE;
 666         Debug( LDAP_DEBUG_TRACE,
 667                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 668                 rs->sr_err,
 669                 rs->sr_rspoid ? rs->sr_rspoid : "",
 670                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 671         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 672         rs->sr_msgid = op->o_msgid;
 673         send_ldap_response( op, rs );
 674 }
 675
 676 int
 677 slap_send_search_entry( Operation *op, SlapReply *rs )
 678 {
 679         BerElementBuffer berbuf;
 680         BerElement      *ber = (BerElement *) &berbuf;
 681         Attribute       *a;
 682         int             i, j, rc=-1, bytes;
 683         char            *edn;
 684         int             userattrs;
 685         AccessControlState acl_state = ACL_STATE_INIT;
 686 #ifdef LDAP_SLAPI
 687         /* Support for computed attribute plugins */
 688         computed_attr_context    ctx;
 689         AttributeName   *anp;
 690 #endif
 691         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 692
 693         /* a_flags: array of flags telling if the i-th element will be
 694          *          returned or filtered out
 695          * e_flags: array of a_flags
 696          */
 697         char **e_flags = NULL;
 698
 699         rs->sr_type = REP_SEARCH;
 700
 701         /* eventually will loop through generated operational attribute types
 702          * currently implemented types include:
 703          *      entryDN, subschemaSubentry, and hasSubordinates */
 704         /* NOTE: moved before overlays callback circling because
 705          * they may modify entry and other stuff in rs */
 706         /* check for special all operational attributes ("+") type */
 707         /* FIXME: maybe we could se this flag at the operation level;
 708          * however, in principle the caller of send_search_entry() may
 709          * change the attribute list at each call */
 710         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 711
 712         rc = backend_operational( op, rs );
 713         if ( rc ) {
 714                 goto error_return;
 715         }
 716
 717         if ( op->o_callback ) {
 718                 int             first = 1;
 719                 slap_callback   *sc = op->o_callback,
 720                                 *sc_next = op->o_callback;
 721
 722                 rc = SLAP_CB_CONTINUE;
 723                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 724                         sc_next = op->o_callback->sc_next;
 725                         if ( op->o_callback->sc_response ) {
 726                                 rc = op->o_callback->sc_response( op, rs );
 727                                 if ( first && op->o_callback == NULL ) {
 728                                         sc = NULL;
 729                                 }
 730                                 if ( rc != SLAP_CB_CONTINUE ) break;
 731                         }
 732                         first = 0;
 733                 }
 734
 735                 op->o_callback = sc;
 736                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 737         }
 738
 739         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 740                 op->o_connid, rs->sr_entry->e_name.bv_val,
 741                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 742
 743         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 744                 Debug( LDAP_DEBUG_ACL,
 745                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 746                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 747
 748                 rc = 1;
 749                 goto error_return;
 750         }
 751
 752         edn = rs->sr_entry->e_nname.bv_val;
 753
 754         if ( op->o_res_ber ) {
 755                 /* read back control or LDAP_CONNECTIONLESS */
 756             ber = op->o_res_ber;
 757         } else {
 758                 ber_len_t       siz, len;
 759                 struct berval   bv;
 760
 761                 entry_flatsize( rs->sr_entry, &siz, &len, 0 );
 762                 bv.bv_len = siz + len;
 763                 bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
 764
 765                 ber_init2( ber, &bv, LBER_USE_DER );
 766                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 767         }
 768
 769 #ifdef LDAP_CONNECTIONLESS
 770         if ( op->o_conn && op->o_conn->c_is_udp ) {
 771                 /* CONNECTIONLESS */
 772                 if ( op->o_protocol == LDAP_VERSION2 ) {
 773                 rc = ber_printf(ber, "t{O{" /*}}*/,
 774                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 775                 } else {
 776                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 777                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 778                 }
 779         } else
 780 #endif
 781         if ( op->o_res_ber ) {
 782                 /* read back control */
 783             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 784         } else {
 785             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 786                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 787         }
 788
 789         if ( rc == -1 ) {
 790                 Debug( LDAP_DEBUG_ANY,
 791                         "send_search_entry: conn %lu  ber_printf failed\n",
 792                         op->o_connid, 0, 0 );
 793
 794                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 795                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 796                 goto error_return;
 797         }
 798
 799         /* check for special all user attributes ("*") type */
 800         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 801
 802         /* create an array of arrays of flags. Each flag corresponds
 803          * to particular value of attribute and equals 1 if value matches
 804          * to ValuesReturnFilter or 0 if not
 805          */
 806         if ( op->o_vrFilter != NULL ) {
 807                 int     k = 0;
 808                 size_t  size;
 809
 810                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 811                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 812                 }
 813
 814                 size = i * sizeof(char *) + k;
 815                 if ( size > 0 ) {
 816                         char    *a_flags;
 817                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 818                         if( e_flags == NULL ) {
 819                         Debug( LDAP_DEBUG_ANY,
 820                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 821                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 822                                 ber_free( ber, 1 );
 823
 824                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 825                                 goto error_return;
 826                         }
 827                         a_flags = (char *)(e_flags + i);
 828                         memset( a_flags, 0, k );
 829                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 830                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 831                                 e_flags[i] = a_flags;
 832                                 a_flags += j;
 833                         }
 834
 835                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 836                         if ( rc == -1 ) {
 837                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 838                                         "conn %lu matched values filtering failed\n",
 839                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 840                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 841                                 send_ldap_error( op, rs, LDAP_OTHER,
 842                                         "matched values filtering error" );
 843                                 goto error_return;
 844                         }
 845                 }
 846         }
 847
 848         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 849                 AttributeDescription *desc = a->a_desc;
 850                 int finish = 0;
 851
 852                 if ( rs->sr_attrs == NULL ) {
 853                         /* all attrs request, skip operational attributes */
 854                         if( is_at_operational( desc->ad_type ) ) {
 855                                 continue;
 856                         }
 857
 858                 } else {
 859                         /* specific attrs requested */
 860                         if ( is_at_operational( desc->ad_type ) ) {
 861                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 862                                                 !ad_inlist( desc, rs->sr_attrs ) )
 863                                 {
 864                                         continue;
 865                                 }
 866
 867                         } else {
 868                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) )
 869                                 {
 870                                         continue;
 871                                 }
 872                         }
 873                 }
 874
 875                 if ( op->ors_attrsonly ) {
 876                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 877                                 ACL_READ, &acl_state ) )
 878                         {
 879                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 880                                         "conn %lu access to attribute %s not allowed\n",
 881                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 882                                 continue;
 883                         }
 884
 885                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 886                                 Debug( LDAP_DEBUG_ANY,
 887                                         "send_search_entry: conn %lu  ber_printf failed\n",
 888                                         op->o_connid, 0, 0 );
 889
 890                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 891                                 send_ldap_error( op, rs, LDAP_OTHER,
 892                                         "encoding description error");
 893                                 goto error_return;
 894                         }
 895                         finish = 1;
 896
 897                 } else {
 898                         int first = 1;
 899                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 900                                 if ( ! access_allowed( op, rs->sr_entry,
 901                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 902                                 {
 903                                         Debug( LDAP_DEBUG_ACL,
 904                                                 "send_search_entry: conn %lu "
 905                                                 "access to attribute %s, value #%d not allowed\n",
 906                                                 op->o_connid, desc->ad_cname.bv_val, i );
 907
 908                                         continue;
 909                                 }
 910
 911                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 912                                         continue;
 913                                 }
 914
 915                                 if ( first ) {
 916                                         first = 0;
 917                                         finish = 1;
 918                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 919                                                 Debug( LDAP_DEBUG_ANY,
 920                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 921                                                         op->o_connid, 0, 0 );
 922
 923                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 924                                                 send_ldap_error( op, rs, LDAP_OTHER,
 925                                                         "encoding description error");
 926                                                 goto error_return;
 927                                         }
 928                                 }
 929                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 930                                         Debug( LDAP_DEBUG_ANY,
 931                                                 "send_search_entry: conn %lu  "
 932                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 933
 934                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 935                                         send_ldap_error( op, rs, LDAP_OTHER,
 936                                                 "encoding values error" );
 937                                         goto error_return;
 938                                 }
 939                         }
 940                 }
 941
 942                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 943                         Debug( LDAP_DEBUG_ANY,
 944                                 "send_search_entry: conn %lu ber_printf failed\n",
 945                                 op->o_connid, 0, 0 );
 946
 947                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 948                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 949                         goto error_return;
 950                 }
 951         }
 952
 953         /* NOTE: moved before overlays callback circling because
 954          * they may modify entry and other stuff in rs */
 955         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 956                 int     k = 0;
 957                 size_t  size;
 958
 959                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 960                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 961                 }
 962
 963                 size = i * sizeof(char *) + k;
 964                 if ( size > 0 ) {
 965                         char    *a_flags, **tmp;
 966
 967                         /*
 968                          * Reuse previous memory - we likely need less space
 969                          * for operational attributes
 970                          */
 971                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 972                                 op->o_tmpmemctx );
 973                         if ( tmp == NULL ) {
 974                                 Debug( LDAP_DEBUG_ANY,
 975                                         "send_search_entry: conn %lu "
 976                                         "not enough memory "
 977                                         "for matched values filtering\n",
 978                                         op->o_connid, 0, 0 );
 979                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 980                                 send_ldap_error( op, rs, LDAP_OTHER,
 981                                         "not enough memory for matched values filtering" );
 982                                 goto error_return;
 983                         }
 984                         e_flags = tmp;
 985                         a_flags = (char *)(e_flags + i);
 986                         memset( a_flags, 0, k );
 987                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 988                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 989                                 e_flags[i] = a_flags;
 990                                 a_flags += j;
 991                         }
 992                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
 993
 994                         if ( rc == -1 ) {
 995                                 Debug( LDAP_DEBUG_ANY,
 996                                         "send_search_entry: conn %lu "
 997                                         "matched values filtering failed\n",
 998                                         op->o_connid ? op->o_connid : 0, 0, 0);
 999                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1000                                 send_ldap_error( op, rs, LDAP_OTHER,
1001                                         "matched values filtering error" );
1002                                 goto error_return;
1003                         }
1004                 }
1005         }
1006
1007         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1008                 AttributeDescription *desc = a->a_desc;
1009
1010                 if ( rs->sr_attrs == NULL ) {
1011                         /* all attrs request, skip operational attributes */
1012                         if( is_at_operational( desc->ad_type ) ) {
1013                                 continue;
1014                         }
1015
1016                 } else {
1017                         /* specific attrs requested */
1018                         if( is_at_operational( desc->ad_type ) ) {
1019                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1020                                                 !ad_inlist( desc, rs->sr_attrs ) )
1021                                 {
1022                                         continue;
1023                                 }
1024                         } else {
1025                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1026                                         continue;
1027                                 }
1028                         }
1029                 }
1030
1031                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1032                         ACL_READ, &acl_state ) )
1033                 {
1034                         Debug( LDAP_DEBUG_ACL,
1035                                 "send_search_entry: conn %lu "
1036                                 "access to attribute %s not allowed\n",
1037                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1038
1039                         continue;
1040                 }
1041
1042                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1043                 if ( rc == -1 ) {
1044                         Debug( LDAP_DEBUG_ANY,
1045                                 "send_search_entry: conn %lu  "
1046                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1047
1048                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1049                         send_ldap_error( op, rs, LDAP_OTHER,
1050                                 "encoding description error" );
1051                         goto error_return;
1052                 }
1053
1054                 if ( ! op->ors_attrsonly ) {
1055                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1056                                 if ( ! access_allowed( op, rs->sr_entry,
1057                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1058                                 {
1059                                         Debug( LDAP_DEBUG_ACL,
1060                                                 "send_search_entry: conn %lu "
1061                                                 "access to %s, value %d not allowed\n",
1062                                                 op->o_connid, desc->ad_cname.bv_val, i );
1063
1064                                         continue;
1065                                 }
1066
1067                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1068                                         continue;
1069                                 }
1070
1071                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1072                                         Debug( LDAP_DEBUG_ANY,
1073                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1074                                                 op->o_connid, 0, 0 );
1075
1076                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1077                                         send_ldap_error( op, rs, LDAP_OTHER,
1078                                                 "encoding values error" );
1079                                         goto error_return;
1080                                 }
1081                         }
1082                 }
1083
1084                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1085                         Debug( LDAP_DEBUG_ANY,
1086                                 "send_search_entry: conn %lu  ber_printf failed\n",
1087                                 op->o_connid, 0, 0 );
1088
1089                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1090                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1091                         goto error_return;
1092                 }
1093         }
1094
1095 #ifdef LDAP_SLAPI
1096         /*
1097          * First, setup the computed attribute context that is
1098          * passed to all plugins.
1099          */
1100         if ( op->o_pb ) {
1101                 ctx.cac_pb = op->o_pb;
1102                 ctx.cac_attrs = rs->sr_attrs;
1103                 ctx.cac_attrsonly = op->ors_attrsonly;
1104                 ctx.cac_userattrs = userattrs;
1105                 ctx.cac_opattrs = rs->sr_attr_flags;
1106                 ctx.cac_acl_state = acl_state;
1107                 ctx.cac_private = (void *)ber;
1108
1109                 /*
1110                  * For each client requested attribute, call the plugins.
1111                  */
1112                 if ( rs->sr_attrs != NULL ) {
1113                         for ( anp = rs->sr_attrs; anp->an_name.bv_val != NULL; anp++ ) {
1114                                 rc = compute_evaluator( &ctx, anp->an_name.bv_val,
1115                                         rs->sr_entry, slapi_int_compute_output_ber );
1116                                 if ( rc == 1 ) break;
1117                         }
1118                 } else {
1119                         /*
1120                          * Technically we shouldn't be returning operational attributes
1121                          * when the user requested only user attributes. We'll let the
1122                          * plugin decide whether to be naughty or not.
1123                          */
1124                         rc = compute_evaluator( &ctx, "*",
1125                                 rs->sr_entry, slapi_int_compute_output_ber );
1126                 }
1127                 if ( rc == 1 ) {
1128                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1129                         send_ldap_error( op, rs, LDAP_OTHER, "computed attribute error" );
1130                         goto error_return;
1131                 }
1132         }
1133 #endif /* LDAP_SLAPI */
1134
1135         /* free e_flags */
1136         if ( e_flags ) {
1137                 slap_sl_free( e_flags, op->o_tmpmemctx );
1138                 e_flags = NULL;
1139         }
1140
1141         rc = ber_printf( ber, /*{{*/ "}N}" );
1142
1143         if( rc != -1 ) {
1144                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1145         }
1146
1147         if( rc != -1 ) {
1148 #ifdef LDAP_CONNECTIONLESS
1149                 if( op->o_conn && op->o_conn->c_is_udp ) {
1150                         if ( op->o_protocol != LDAP_VERSION2 ) {
1151                                 rc = ber_printf( ber, /*{*/ "N}" );
1152                         }
1153                 } else
1154 #endif
1155                 if ( op->o_res_ber == NULL ) {
1156                         rc = ber_printf( ber, /*{*/ "N}" );
1157                 }
1158         }
1159
1160         if ( rc == -1 ) {
1161                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1162
1163                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1164                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1165                 rc = 1;
1166                 goto error_return;
1167         }
1168
1169         if ( op->o_res_ber == NULL ) {
1170                 bytes = send_ldap_ber( op->o_conn, ber );
1171                 ber_free_buf( ber );
1172
1173                 if ( bytes < 0 ) {
1174                         Debug( LDAP_DEBUG_ANY,
1175                                 "send_search_entry: conn %lu  ber write failed.\n",
1176                                 op->o_connid, 0, 0 );
1177
1178                         rc = -1;
1179                         goto error_return;
1180                 }
1181                 rs->sr_nentries++;
1182
1183                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1184 #ifdef HAVE_GMP
1185                 mpz_add_ui( slap_counters.sc_bytes, slap_counters.sc_bytes, bytes );
1186                 mpz_add_ui( slap_counters.sc_entries, slap_counters.sc_entries, 1 );
1187                 mpz_add_ui( slap_counters.sc_pdu, slap_counters.sc_pdu, 1 );
1188 #else /* ! HAVE_GMP */
1189                 slap_counters.sc_bytes += bytes;
1190                 slap_counters.sc_entries++;
1191                 slap_counters.sc_pdu++;
1192 #endif /* ! HAVE_GMP */
1193                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1194         }
1195
1196         Statslog( LDAP_DEBUG_STATS2, "conn=%lu op=%lu ENTRY dn=\"%s\"\n",
1197             op->o_connid, op->o_opid, rs->sr_entry->e_dn, 0, 0 );
1198
1199         Debug( LDAP_DEBUG_TRACE,
1200                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1201
1202         rc = 0;
1203
1204 error_return:;
1205         if ( op->o_callback ) {
1206                 int             first = 1;
1207                 slap_callback   *sc = op->o_callback,
1208                                 *sc_next = op->o_callback;
1209
1210                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1211                         sc_next = op->o_callback->sc_next;
1212                         if ( op->o_callback->sc_cleanup ) {
1213                                 (void)op->o_callback->sc_cleanup( op, rs );
1214                                 if ( first && op->o_callback == NULL ) {
1215                                         sc = NULL;
1216                                 }
1217                         }
1218                         first = 0;
1219                 }
1220
1221                 op->o_callback = sc;
1222         }
1223
1224         if ( e_flags ) {
1225                 slap_sl_free( e_flags, op->o_tmpmemctx );
1226         }
1227
1228         if ( rs->sr_operational_attrs ) {
1229                 attrs_free( rs->sr_operational_attrs );
1230                 rs->sr_operational_attrs = NULL;
1231         }
1232         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1233
1234         /* FIXME: I think rs->sr_type should be explicitly set to
1235          * REP_SEARCH here. That's what it was when we entered this
1236          * function. send_ldap_error may have changed it, but we
1237          * should set it back so that the cleanup functions know
1238          * what they're doing.
1239          */
1240         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1241                 && rs->sr_entry
1242                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1243         {
1244                 entry_free( rs->sr_entry );
1245                 rs->sr_entry = NULL;
1246                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1247         }
1248
1249         return( rc );
1250 }
1251
1252 int
1253 slap_send_search_reference( Operation *op, SlapReply *rs )
1254 {
1255         BerElementBuffer berbuf;
1256         BerElement      *ber = (BerElement *) &berbuf;
1257         int rc = 0;
1258         int bytes;
1259
1260         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1261         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1262
1263         rs->sr_type = REP_SEARCHREF;
1264         if ( op->o_callback ) {
1265                 int             first = 1;
1266                 slap_callback   *sc = op->o_callback,
1267                                 *sc_next = op->o_callback;
1268
1269                 rc = SLAP_CB_CONTINUE;
1270                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1271                         sc_next = op->o_callback->sc_next;
1272                         if ( op->o_callback->sc_response ) {
1273                                 rc = op->o_callback->sc_response( op, rs );
1274                                 if ( first && op->o_callback == NULL ) {
1275                                         sc = NULL;
1276                                 }
1277                                 if ( rc != SLAP_CB_CONTINUE ) break;
1278                         }
1279                         first = 0;
1280                 }
1281
1282                 op->o_callback = sc;
1283                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1284         }
1285
1286         Debug( LDAP_DEBUG_TRACE,
1287                 "=> send_search_reference: dn=\"%s\"\n",
1288                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1289
1290         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1291                 ad_entry, NULL, ACL_READ, NULL ) )
1292         {
1293                 Debug( LDAP_DEBUG_ACL,
1294                         "send_search_reference: access to entry not allowed\n",
1295                     0, 0, 0 );
1296                 rc = 1;
1297                 goto rel;
1298         }
1299
1300         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1301                 ad_ref, NULL, ACL_READ, NULL ) )
1302         {
1303                 Debug( LDAP_DEBUG_ACL,
1304                         "send_search_reference: access "
1305                         "to reference not allowed\n",
1306                     0, 0, 0 );
1307                 rc = 1;
1308                 goto rel;
1309         }
1310
1311 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1312         if( op->o_domain_scope ) {
1313                 Debug( LDAP_DEBUG_ANY,
1314                         "send_search_reference: domainScope control in (%s)\n",
1315                         rs->sr_entry->e_dn, 0, 0 );
1316                 rc = 0;
1317                 goto rel;
1318         }
1319 #endif
1320
1321         if( rs->sr_ref == NULL ) {
1322                 Debug( LDAP_DEBUG_ANY,
1323                         "send_search_reference: null ref in (%s)\n",
1324                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1325                 rc = 1;
1326                 goto rel;
1327         }
1328
1329         if( op->o_protocol < LDAP_VERSION3 ) {
1330                 rc = 0;
1331                 /* save the references for the result */
1332                 if( rs->sr_ref[0].bv_val != NULL ) {
1333                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1334                                 rc = LDAP_OTHER;
1335                 }
1336                 goto rel;
1337         }
1338
1339 #ifdef LDAP_CONNECTIONLESS
1340         if( op->o_conn && op->o_conn->c_is_udp ) {
1341                 ber = op->o_res_ber;
1342         } else
1343 #endif
1344         {
1345                 ber_init_w_nullc( ber, LBER_USE_DER );
1346                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1347         }
1348
1349         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1350                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1351
1352         if( rc != -1 ) {
1353                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1354         }
1355
1356         if( rc != -1 ) {
1357                 rc = ber_printf( ber, /*"{"*/ "N}" );
1358         }
1359
1360         if ( rc == -1 ) {
1361                 Debug( LDAP_DEBUG_ANY,
1362                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1363
1364 #ifdef LDAP_CONNECTIONLESS
1365                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1366 #endif
1367                 ber_free_buf( ber );
1368                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1369                 goto rel;
1370         }
1371
1372 #ifdef LDAP_CONNECTIONLESS
1373         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1374 #endif
1375         bytes = send_ldap_ber( op->o_conn, ber );
1376         ber_free_buf( ber );
1377
1378         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1379 #ifdef HAVE_GMP
1380         mpz_add_ui( slap_counters.sc_bytes, slap_counters.sc_bytes, bytes );
1381         mpz_add_ui( slap_counters.sc_refs, slap_counters.sc_refs, 1 );
1382         mpz_add_ui( slap_counters.sc_pdu, slap_counters.sc_pdu, 1 );
1383 #else /* ! HAVE_GMP */
1384         slap_counters.sc_bytes += bytes;
1385         slap_counters.sc_refs++;
1386         slap_counters.sc_pdu++;
1387 #endif /* ! HAVE_GMP */
1388         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1389 #ifdef LDAP_CONNECTIONLESS
1390         }
1391 #endif
1392
1393         Statslog( LDAP_DEBUG_STATS2, "conn=%lu op=%lu REF dn=\"%s\"\n",
1394                 op->o_connid, op->o_opid, rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1395
1396         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1397
1398 rel:
1399         if ( op->o_callback ) {
1400                 int             first = 1;
1401                 slap_callback   *sc = op->o_callback,
1402                                 *sc_next = op->o_callback;
1403
1404                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1405                         sc_next = op->o_callback->sc_next;
1406                         if ( op->o_callback->sc_cleanup ) {
1407                                 (void)op->o_callback->sc_cleanup( op, rs );
1408                                 if ( first && op->o_callback == NULL ) {
1409                                         sc = NULL;
1410                                 }
1411                         }
1412                         first = 0;
1413                 }
1414
1415                 op->o_callback = sc;
1416         }
1417
1418         return rc;
1419 }
1420
1421 int
1422 str2result(
1423     char        *s,
1424     int         *code,
1425     char        **matched,
1426     char        **info
1427 )
1428 {
1429         int     rc;
1430         char    *c;
1431
1432         *code = LDAP_SUCCESS;
1433         *matched = NULL;
1434         *info = NULL;
1435
1436         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1437                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1438                     s, 0, 0 );
1439
1440                 return( -1 );
1441         }
1442
1443         rc = 0;
1444         while ( (s = strchr( s, '\n' )) != NULL ) {
1445                 *s++ = '\0';
1446                 if ( *s == '\0' ) {
1447                         break;
1448                 }
1449                 if ( (c = strchr( s, ':' )) != NULL ) {
1450                         c++;
1451                 }
1452
1453                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1454                         if ( c != NULL ) {
1455                                 *code = atoi( c );
1456                         }
1457                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1458                         if ( c != NULL ) {
1459                                 *matched = c;
1460                         }
1461                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1462                         if ( c != NULL ) {
1463                                 *info = c;
1464                         }
1465                 } else {
1466                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1467                             s, 0, 0 );
1468
1469                         rc = -1;
1470                 }
1471         }
1472
1473         return( rc );
1474 }
1475
1476 int slap_read_controls(
1477         Operation *op,
1478         SlapReply *rs,
1479         Entry *e,
1480         const struct berval *oid,
1481         LDAPControl **ctrl )
1482 {
1483         int rc;
1484         struct berval bv;
1485         BerElementBuffer berbuf;
1486         BerElement *ber = (BerElement *) &berbuf;
1487         LDAPControl c;
1488         ber_len_t       siz, len;
1489         Operation myop;
1490
1491         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1492                 oid->bv_val, e->e_dn, 0 );
1493
1494         rs->sr_entry = e;
1495         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1496                 op->o_preread_attrs : op->o_postread_attrs;
1497
1498         entry_flatsize( rs->sr_entry, &siz, &len, 0 );
1499         bv.bv_len = siz + len;
1500         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1501
1502         ber_init2( ber, &bv, LBER_USE_DER );
1503         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1504
1505         /* create new operation */
1506         myop = *op;
1507         myop.o_bd = NULL;
1508         myop.o_res_ber = ber;
1509
1510         rc = slap_send_search_entry( &myop, rs );
1511         if( rc ) return rc;
1512
1513         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1514
1515         if( rc == LBER_ERROR ) return LDAP_OTHER;
1516
1517         c.ldctl_oid = oid->bv_val;
1518         c.ldctl_iscritical = 0;
1519
1520         if ( ctrl == NULL ) {
1521                 /* first try */
1522                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1523         } else {
1524                 /* retry: free previous try */
1525                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
1526         }
1527
1528         **ctrl = c;
1529         return LDAP_SUCCESS;
1530 }
1531
1532 /* Map API errors to protocol errors... */
1533 int
1534 slap_map_api2result( SlapReply *rs )
1535 {
1536         switch(rs->sr_err) {
1537         case LDAP_SERVER_DOWN:
1538                 return LDAP_UNAVAILABLE;
1539         case LDAP_LOCAL_ERROR:
1540                 return LDAP_OTHER;
1541         case LDAP_ENCODING_ERROR:
1542         case LDAP_DECODING_ERROR:
1543                 return LDAP_PROTOCOL_ERROR;
1544         case LDAP_TIMEOUT:
1545                 return LDAP_UNAVAILABLE;
1546         case LDAP_AUTH_UNKNOWN:
1547                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1548         case LDAP_FILTER_ERROR:
1549                 rs->sr_text = "Filter error";
1550                 return LDAP_OTHER;
1551         case LDAP_USER_CANCELLED:
1552                 rs->sr_text = "User cancelled";
1553                 return LDAP_OTHER;
1554         case LDAP_PARAM_ERROR:
1555                 return LDAP_PROTOCOL_ERROR;
1556         case LDAP_NO_MEMORY:
1557                 return LDAP_OTHER;
1558         case LDAP_CONNECT_ERROR:
1559                 return LDAP_UNAVAILABLE;
1560         case LDAP_NOT_SUPPORTED:
1561                 return LDAP_UNWILLING_TO_PERFORM;
1562         case LDAP_CONTROL_NOT_FOUND:
1563                 return LDAP_PROTOCOL_ERROR;
1564         case LDAP_NO_RESULTS_RETURNED:
1565                 return LDAP_NO_SUCH_OBJECT;
1566         case LDAP_MORE_RESULTS_TO_RETURN:
1567                 rs->sr_text = "More results to return";
1568                 return LDAP_OTHER;
1569         case LDAP_CLIENT_LOOP:
1570         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1571                 return LDAP_LOOP_DETECT;
1572         default:
1573                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1574                 return rs->sr_err;
1575         }
1576 }
1577
1578
1579 slap_mask_t
1580 slap_attr_flags( AttributeName *an )
1581 {
1582         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1583
1584         if ( an == NULL ) {
1585                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1586
1587         } else {
1588                 flags |= an_find( an, &AllOper ) ?  SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1589                 flags |= an_find( an, &AllUser ) ?  SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1590         }
1591
1592         return flags;
1593 }
1594