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( &num_sent_mutex );
 451         num_bytes_sent += bytes;
 452         num_pdu_sent++;
 453         ldap_pvt_thread_mutex_unlock( &num_sent_mutex );
 454
 455 cleanup:;
 456         /* Tell caller that we did this for real, as opposed to being
 457          * overridden by a callback
 458          */
 459         rc = SLAP_CB_CONTINUE;
 460
 461 clean2:;
 462         if ( op->o_callback ) {
 463                 int             first = 1;
 464                 slap_callback   *sc = op->o_callback,
 465                                 *sc_next = op->o_callback;
 466
 467                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 468                         sc_next = op->o_callback->sc_next;
 469                         if ( op->o_callback->sc_cleanup ) {
 470                                 (void)op->o_callback->sc_cleanup( op, rs );
 471                                 if ( first && op->o_callback == NULL ) {
 472                                         sc = NULL;
 473                                 }
 474                         }
 475                         first = 0;
 476                 }
 477
 478                 op->o_callback = sc;
 479         }
 480
 481
 482         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 483                 free( (char *)rs->sr_matched );
 484                 rs->sr_matched = NULL;
 485         }
 486
 487         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 488                 ber_bvarray_free( rs->sr_ref );
 489                 rs->sr_ref = NULL;
 490         }
 491
 492         return rc;
 493 }
 494
 495
 496 void
 497 send_ldap_disconnect( Operation *op, SlapReply *rs )
 498 {
 499 #define LDAP_UNSOLICITED_ERROR(e) \
 500         (  (e) == LDAP_PROTOCOL_ERROR \
 501         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 502         || (e) == LDAP_UNAVAILABLE )
 503
 504         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 505
 506         rs->sr_type = REP_EXTENDED;
 507
 508         Debug( LDAP_DEBUG_TRACE,
 509                 "send_ldap_disconnect %d:%s\n",
 510                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 511
 512         if ( op->o_protocol < LDAP_VERSION3 ) {
 513                 rs->sr_rspoid = NULL;
 514                 rs->sr_tag = req2res( op->o_tag );
 515                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 516
 517         } else {
 518                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 519                 rs->sr_tag = LDAP_RES_EXTENDED;
 520                 rs->sr_msgid = 0;
 521         }
 522
 523         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 524                 Statslog( LDAP_DEBUG_STATS,
 525                         "conn=%lu op=%lu DISCONNECT tag=%lu err=%d text=%s\n",
 526                         op->o_connid, op->o_opid, rs->sr_tag, rs->sr_err,
 527                         rs->sr_text ? rs->sr_text : "" );
 528         }
 529 }
 530
 531 void
 532 slap_send_ldap_result( Operation *op, SlapReply *rs )
 533 {
 534         char *tmp = NULL;
 535         const char *otext = rs->sr_text;
 536         BerVarray oref = rs->sr_ref;
 537
 538         rs->sr_type = REP_RESULT;
 539
 540         assert( !LDAP_API_ERROR( rs->sr_err ));
 541
 542         Debug( LDAP_DEBUG_TRACE,
 543                 "send_ldap_result: conn=%lu op=%lu p=%d\n",
 544                 op->o_connid, op->o_opid, op->o_protocol );
 545
 546         Debug( LDAP_DEBUG_ARGS,
 547                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 548                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 549                 rs->sr_text ? rs->sr_text : "" );
 550
 551
 552         if( rs->sr_ref ) {
 553                 Debug( LDAP_DEBUG_ARGS,
 554                         "send_ldap_result: referral=\"%s\"\n",
 555                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 556                         NULL, NULL );
 557         }
 558
 559         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 560
 561         if ( rs->sr_err == LDAP_REFERRAL ) {
 562 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 563                 if( op->o_domain_scope ) {
 564                         rs->sr_ref = NULL;
 565                 }
 566 #endif
 567                 if( rs->sr_ref == NULL ) {
 568                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 569                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 570                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 571                 }
 572         }
 573
 574 #ifdef LDAP_SLAPI
 575         /*
 576          * Call pre-result plugins. To avoid infinite recursion plugins
 577          * should just set SLAPI_RESULT_CODE rather than sending a
 578          * result if they wish to change the result.
 579          */
 580         if ( op->o_pb != NULL ) {
 581                 slapi_int_pblock_set_operation( op->o_pb, op );
 582                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE,
 583                         (void *)rs->sr_err );
 584                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT,
 585                         (void *)rs->sr_text );
 586                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 587                         (void *)rs->sr_matched );
 588
 589                 (void) slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_PRE_RESULT_FN,
 590                         op->o_pb );
 591         }
 592 #endif /* LDAP_SLAPI */
 593
 594         if ( op->o_protocol < LDAP_VERSION3 ) {
 595                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 596                 rs->sr_text = tmp;
 597                 rs->sr_ref = NULL;
 598         }
 599
 600         rs->sr_tag = req2res( op->o_tag );
 601         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 602
 603         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 604                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 605                         char nbuf[64];
 606                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 607                                 rs->sr_err, rs->sr_nentries );
 608
 609                         Statslog( LDAP_DEBUG_STATS,
 610                         "conn=%lu op=%lu SEARCH RESULT tag=%lu err=%s text=%s\n",
 611                                 op->o_connid, op->o_opid, rs->sr_tag, nbuf,
 612                                 rs->sr_text ? rs->sr_text : "" );
 613                 } else {
 614                         Statslog( LDAP_DEBUG_STATS,
 615                                 "conn=%lu op=%lu RESULT tag=%lu err=%d text=%s\n",
 616                                 op->o_connid, op->o_opid, rs->sr_tag, rs->sr_err,
 617                                 rs->sr_text ? rs->sr_text : "" );
 618                 }
 619         }
 620
 621         if( tmp != NULL ) ch_free(tmp);
 622         rs->sr_text = otext;
 623         rs->sr_ref = oref;
 624 }
 625
 626 void
 627 send_ldap_sasl( Operation *op, SlapReply *rs )
 628 {
 629         rs->sr_type = REP_SASL;
 630         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 631                 rs->sr_err,
 632                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 633
 634         rs->sr_tag = req2res( op->o_tag );
 635         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 636
 637         send_ldap_response( op, rs );
 638 }
 639
 640 void
 641 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 642 {
 643         rs->sr_type = REP_EXTENDED;
 644
 645         Debug( LDAP_DEBUG_TRACE,
 646                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 647                 rs->sr_err,
 648                 rs->sr_rspoid ? rs->sr_rspoid : "",
 649                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 650
 651         rs->sr_tag = req2res( op->o_tag );
 652         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 653
 654         send_ldap_response( op, rs );
 655 }
 656
 657 void
 658 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 659 {
 660         rs->sr_type = REP_INTERMEDIATE;
 661         Debug( LDAP_DEBUG_TRACE,
 662                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 663                 rs->sr_err,
 664                 rs->sr_rspoid ? rs->sr_rspoid : "",
 665                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 666         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 667         rs->sr_msgid = op->o_msgid;
 668         send_ldap_response( op, rs );
 669 }
 670
 671 int
 672 slap_send_search_entry( Operation *op, SlapReply *rs )
 673 {
 674         BerElementBuffer berbuf;
 675         BerElement      *ber = (BerElement *) &berbuf;
 676         Attribute       *a;
 677         int             i, j, rc=-1, bytes;
 678         char            *edn;
 679         int             userattrs;
 680         AccessControlState acl_state = ACL_STATE_INIT;
 681 #ifdef LDAP_SLAPI
 682         /* Support for computed attribute plugins */
 683         computed_attr_context    ctx;
 684         AttributeName   *anp;
 685 #endif
 686         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 687
 688         /* a_flags: array of flags telling if the i-th element will be
 689          *          returned or filtered out
 690          * e_flags: array of a_flags
 691          */
 692         char **e_flags = NULL;
 693
 694         rs->sr_type = REP_SEARCH;
 695
 696         /* eventually will loop through generated operational attributes */
 697         /* only subschemaSubentry and numSubordinates are implemented */
 698         /* NOTE: moved before overlays callback circling because
 699          * they may modify entry and other stuff in rs */
 700         /* check for special all operational attributes ("+") type */
 701         /* FIXME: maybe we could se this flag at the operation level;
 702          * however, in principle the caller of send_search_entry() may
 703          * change the attribute list at each call */
 704         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 705
 706         rc = backend_operational( op, rs );
 707         if ( rc ) {
 708                 goto error_return;
 709         }
 710
 711         if ( op->o_callback ) {
 712                 int             first = 1;
 713                 slap_callback   *sc = op->o_callback,
 714                                 *sc_next = op->o_callback;
 715
 716                 rc = SLAP_CB_CONTINUE;
 717                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 718                         sc_next = op->o_callback->sc_next;
 719                         if ( op->o_callback->sc_response ) {
 720                                 rc = op->o_callback->sc_response( op, rs );
 721                                 if ( first && op->o_callback == NULL ) {
 722                                         sc = NULL;
 723                                 }
 724                                 if ( rc != SLAP_CB_CONTINUE ) break;
 725                         }
 726                         first = 0;
 727                 }
 728
 729                 op->o_callback = sc;
 730                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 731         }
 732
 733         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 734                 op->o_connid, rs->sr_entry->e_name.bv_val,
 735                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 736
 737         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 738                 Debug( LDAP_DEBUG_ACL,
 739                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 740                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 741
 742                 rc = 1;
 743                 goto error_return;
 744         }
 745
 746         edn = rs->sr_entry->e_nname.bv_val;
 747
 748         if ( op->o_res_ber ) {
 749                 /* read back control or LDAP_CONNECTIONLESS */
 750             ber = op->o_res_ber;
 751         } else {
 752                 ber_len_t       siz, len;
 753                 struct berval   bv;
 754
 755                 entry_flatsize( rs->sr_entry, &siz, &len, 0 );
 756                 bv.bv_len = siz + len;
 757                 bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
 758
 759                 ber_init2( ber, &bv, LBER_USE_DER );
 760                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 761         }
 762
 763 #ifdef LDAP_CONNECTIONLESS
 764         if ( op->o_conn && op->o_conn->c_is_udp ) {
 765                 /* CONNECTIONLESS */
 766                 if ( op->o_protocol == LDAP_VERSION2 ) {
 767                 rc = ber_printf(ber, "t{O{" /*}}*/,
 768                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 769                 } else {
 770                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 771                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 772                 }
 773         } else
 774 #endif
 775         if ( op->o_res_ber ) {
 776                 /* read back control */
 777             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 778         } else {
 779             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 780                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 781         }
 782
 783         if ( rc == -1 ) {
 784                 Debug( LDAP_DEBUG_ANY,
 785                         "send_search_entry: conn %lu  ber_printf failed\n",
 786                         op->o_connid, 0, 0 );
 787
 788                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 789                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 790                 goto error_return;
 791         }
 792
 793         /* check for special all user attributes ("*") type */
 794         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 795
 796         /* create an array of arrays of flags. Each flag corresponds
 797          * to particular value of attribute and equals 1 if value matches
 798          * to ValuesReturnFilter or 0 if not
 799          */
 800         if ( op->o_vrFilter != NULL ) {
 801                 int     k = 0;
 802                 size_t  size;
 803
 804                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 805                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 806                 }
 807
 808                 size = i * sizeof(char *) + k;
 809                 if ( size > 0 ) {
 810                         char    *a_flags;
 811                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 812                         if( e_flags == NULL ) {
 813                         Debug( LDAP_DEBUG_ANY,
 814                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 815                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 816                                 ber_free( ber, 1 );
 817
 818                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 819                                 goto error_return;
 820                         }
 821                         a_flags = (char *)(e_flags + i);
 822                         memset( a_flags, 0, k );
 823                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 824                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 825                                 e_flags[i] = a_flags;
 826                                 a_flags += j;
 827                         }
 828
 829                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 830                         if ( rc == -1 ) {
 831                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 832                                         "conn %lu matched values filtering failed\n",
 833                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 834                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 835                                 send_ldap_error( op, rs, LDAP_OTHER,
 836                                         "matched values filtering error" );
 837                                 goto error_return;
 838                         }
 839                 }
 840         }
 841
 842         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 843                 AttributeDescription *desc = a->a_desc;
 844                 int finish = 0;
 845
 846                 if ( rs->sr_attrs == NULL ) {
 847                         /* all attrs request, skip operational attributes */
 848                         if( is_at_operational( desc->ad_type ) ) {
 849                                 continue;
 850                         }
 851
 852                 } else {
 853                         /* specific attrs requested */
 854                         if ( is_at_operational( desc->ad_type ) ) {
 855                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 856                                                 !ad_inlist( desc, rs->sr_attrs ) )
 857                                 {
 858                                         continue;
 859                                 }
 860
 861                         } else {
 862                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) )
 863                                 {
 864                                         continue;
 865                                 }
 866                         }
 867                 }
 868
 869                 if ( op->ors_attrsonly ) {
 870                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 871                                 ACL_READ, &acl_state ) )
 872                         {
 873                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 874                                         "conn %lu access to attribute %s not allowed\n",
 875                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 876                                 continue;
 877                         }
 878
 879                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 880                                 Debug( LDAP_DEBUG_ANY,
 881                                         "send_search_entry: conn %lu  ber_printf failed\n",
 882                                         op->o_connid, 0, 0 );
 883
 884                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 885                                 send_ldap_error( op, rs, LDAP_OTHER,
 886                                         "encoding description error");
 887                                 goto error_return;
 888                         }
 889                         finish = 1;
 890
 891                 } else {
 892                         int first = 1;
 893                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 894                                 if ( ! access_allowed( op, rs->sr_entry,
 895                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 896                                 {
 897                                         Debug( LDAP_DEBUG_ACL,
 898                                                 "send_search_entry: conn %lu "
 899                                                 "access to attribute %s, value #%d not allowed\n",
 900                                                 op->o_connid, desc->ad_cname.bv_val, i );
 901
 902                                         continue;
 903                                 }
 904
 905                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 906                                         continue;
 907                                 }
 908
 909                                 if ( first ) {
 910                                         first = 0;
 911                                         finish = 1;
 912                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 913                                                 Debug( LDAP_DEBUG_ANY,
 914                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 915                                                         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 description error");
 920                                                 goto error_return;
 921                                         }
 922                                 }
 923                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 924                                         Debug( LDAP_DEBUG_ANY,
 925                                                 "send_search_entry: conn %lu  "
 926                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 927
 928                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 929                                         send_ldap_error( op, rs, LDAP_OTHER,
 930                                                 "encoding values error" );
 931                                         goto error_return;
 932                                 }
 933                         }
 934                 }
 935
 936                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 937                         Debug( LDAP_DEBUG_ANY,
 938                                 "send_search_entry: conn %lu ber_printf failed\n",
 939                                 op->o_connid, 0, 0 );
 940
 941                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 942                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 943                         goto error_return;
 944                 }
 945         }
 946
 947         /* NOTE: moved before overlays callback circling because
 948          * they may modify entry and other stuff in rs */
 949         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 950                 int     k = 0;
 951                 size_t  size;
 952
 953                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 954                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 955                 }
 956
 957                 size = i * sizeof(char *) + k;
 958                 if ( size > 0 ) {
 959                         char    *a_flags, **tmp;
 960
 961                         /*
 962                          * Reuse previous memory - we likely need less space
 963                          * for operational attributes
 964                          */
 965                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 966                                 op->o_tmpmemctx );
 967                         if ( tmp == NULL ) {
 968                                 Debug( LDAP_DEBUG_ANY,
 969                                         "send_search_entry: conn %lu "
 970                                         "not enough memory "
 971                                         "for matched values filtering\n",
 972                                         op->o_connid, 0, 0 );
 973                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 974                                 send_ldap_error( op, rs, LDAP_OTHER,
 975                                         "not enough memory for matched values filtering" );
 976                                 goto error_return;
 977                         }
 978                         e_flags = tmp;
 979                         a_flags = (char *)(e_flags + i);
 980                         memset( a_flags, 0, k );
 981                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 982                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 983                                 e_flags[i] = a_flags;
 984                                 a_flags += j;
 985                         }
 986                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
 987
 988                         if ( rc == -1 ) {
 989                                 Debug( LDAP_DEBUG_ANY,
 990                                         "send_search_entry: conn %lu "
 991                                         "matched values filtering failed\n",
 992                                         op->o_connid ? op->o_connid : 0, 0, 0);
 993                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 994                                 send_ldap_error( op, rs, LDAP_OTHER,
 995                                         "matched values filtering error" );
 996                                 goto error_return;
 997                         }
 998                 }
 999         }
1000
1001         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1002                 AttributeDescription *desc = a->a_desc;
1003
1004                 if ( rs->sr_attrs == NULL ) {
1005                         /* all attrs request, skip operational attributes */
1006                         if( is_at_operational( desc->ad_type ) ) {
1007                                 continue;
1008                         }
1009
1010                 } else {
1011                         /* specific attrs requested */
1012                         if( is_at_operational( desc->ad_type ) ) {
1013                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1014                                                 !ad_inlist( desc, rs->sr_attrs ) )
1015                                 {
1016                                         continue;
1017                                 }
1018                         } else {
1019                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1020                                         continue;
1021                                 }
1022                         }
1023                 }
1024
1025                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1026                         ACL_READ, &acl_state ) )
1027                 {
1028                         Debug( LDAP_DEBUG_ACL,
1029                                 "send_search_entry: conn %lu "
1030                                 "access to attribute %s not allowed\n",
1031                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1032
1033                         continue;
1034                 }
1035
1036                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1037                 if ( rc == -1 ) {
1038                         Debug( LDAP_DEBUG_ANY,
1039                                 "send_search_entry: conn %lu  "
1040                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1041
1042                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1043                         send_ldap_error( op, rs, LDAP_OTHER,
1044                                 "encoding description error" );
1045                         goto error_return;
1046                 }
1047
1048                 if ( ! op->ors_attrsonly ) {
1049                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1050                                 if ( ! access_allowed( op, rs->sr_entry,
1051                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1052                                 {
1053                                         Debug( LDAP_DEBUG_ACL,
1054                                                 "send_search_entry: conn %lu "
1055                                                 "access to %s, value %d not allowed\n",
1056                                                 op->o_connid, desc->ad_cname.bv_val, i );
1057
1058                                         continue;
1059                                 }
1060
1061                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1062                                         continue;
1063                                 }
1064
1065                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1066                                         Debug( LDAP_DEBUG_ANY,
1067                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1068                                                 op->o_connid, 0, 0 );
1069
1070                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1071                                         send_ldap_error( op, rs, LDAP_OTHER,
1072                                                 "encoding values error" );
1073                                         goto error_return;
1074                                 }
1075                         }
1076                 }
1077
1078                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1079                         Debug( LDAP_DEBUG_ANY,
1080                                 "send_search_entry: conn %lu  ber_printf failed\n",
1081                                 op->o_connid, 0, 0 );
1082
1083                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1084                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1085                         goto error_return;
1086                 }
1087         }
1088
1089 #ifdef LDAP_SLAPI
1090         /*
1091          * First, setup the computed attribute context that is
1092          * passed to all plugins.
1093          */
1094         if ( op->o_pb ) {
1095                 ctx.cac_pb = op->o_pb;
1096                 ctx.cac_attrs = rs->sr_attrs;
1097                 ctx.cac_attrsonly = op->ors_attrsonly;
1098                 ctx.cac_userattrs = userattrs;
1099                 ctx.cac_opattrs = rs->sr_attr_flags;
1100                 ctx.cac_acl_state = acl_state;
1101                 ctx.cac_private = (void *)ber;
1102
1103                 /*
1104                  * For each client requested attribute, call the plugins.
1105                  */
1106                 if ( rs->sr_attrs != NULL ) {
1107                         for ( anp = rs->sr_attrs; anp->an_name.bv_val != NULL; anp++ ) {
1108                                 rc = compute_evaluator( &ctx, anp->an_name.bv_val,
1109                                         rs->sr_entry, slapi_int_compute_output_ber );
1110                                 if ( rc == 1 ) break;
1111                         }
1112                 } else {
1113                         /*
1114                          * Technically we shouldn't be returning operational attributes
1115                          * when the user requested only user attributes. We'll let the
1116                          * plugin decide whether to be naughty or not.
1117                          */
1118                         rc = compute_evaluator( &ctx, "*",
1119                                 rs->sr_entry, slapi_int_compute_output_ber );
1120                 }
1121                 if ( rc == 1 ) {
1122                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1123                         send_ldap_error( op, rs, LDAP_OTHER, "computed attribute error" );
1124                         goto error_return;
1125                 }
1126         }
1127 #endif /* LDAP_SLAPI */
1128
1129         /* free e_flags */
1130         if ( e_flags ) {
1131                 slap_sl_free( e_flags, op->o_tmpmemctx );
1132                 e_flags = NULL;
1133         }
1134
1135         rc = ber_printf( ber, /*{{*/ "}N}" );
1136
1137         if( rc != -1 ) {
1138                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1139         }
1140
1141         if( rc != -1 ) {
1142 #ifdef LDAP_CONNECTIONLESS
1143                 if( op->o_conn && op->o_conn->c_is_udp ) {
1144                         if ( op->o_protocol != LDAP_VERSION2 ) {
1145                                 rc = ber_printf( ber, /*{*/ "N}" );
1146                         }
1147                 } else
1148 #endif
1149                 if ( op->o_res_ber == NULL ) {
1150                         rc = ber_printf( ber, /*{*/ "N}" );
1151                 }
1152         }
1153
1154         if ( rc == -1 ) {
1155                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1156
1157                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1158                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1159                 rc = 1;
1160                 goto error_return;
1161         }
1162
1163         if ( op->o_res_ber == NULL ) {
1164                 bytes = send_ldap_ber( op->o_conn, ber );
1165                 ber_free_buf( ber );
1166
1167                 if ( bytes < 0 ) {
1168                         Debug( LDAP_DEBUG_ANY,
1169                                 "send_search_entry: conn %lu  ber write failed.\n",
1170                                 op->o_connid, 0, 0 );
1171
1172                         rc = -1;
1173                         goto error_return;
1174                 }
1175                 rs->sr_nentries++;
1176
1177                 ldap_pvt_thread_mutex_lock( &num_sent_mutex );
1178                 num_bytes_sent += bytes;
1179                 num_entries_sent++;
1180                 num_pdu_sent++;
1181                 ldap_pvt_thread_mutex_unlock( &num_sent_mutex );
1182         }
1183
1184         Statslog( LDAP_DEBUG_STATS2, "conn=%lu op=%lu ENTRY dn=\"%s\"\n",
1185             op->o_connid, op->o_opid, rs->sr_entry->e_dn, 0, 0 );
1186
1187         Debug( LDAP_DEBUG_TRACE,
1188                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1189
1190         rc = 0;
1191
1192 error_return:;
1193         if ( op->o_callback ) {
1194                 int             first = 1;
1195                 slap_callback   *sc = op->o_callback,
1196                                 *sc_next = op->o_callback;
1197
1198                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1199                         sc_next = op->o_callback->sc_next;
1200                         if ( op->o_callback->sc_cleanup ) {
1201                                 (void)op->o_callback->sc_cleanup( op, rs );
1202                                 if ( first && op->o_callback == NULL ) {
1203                                         sc = NULL;
1204                                 }
1205                         }
1206                         first = 0;
1207                 }
1208
1209                 op->o_callback = sc;
1210         }
1211
1212         if ( e_flags ) {
1213                 slap_sl_free( e_flags, op->o_tmpmemctx );
1214         }
1215
1216         if ( rs->sr_operational_attrs ) {
1217                 attrs_free( rs->sr_operational_attrs );
1218                 rs->sr_operational_attrs = NULL;
1219         }
1220         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1221
1222         /* FIXME: I think rs->sr_type should be explicitly set to
1223          * REP_SEARCH here. That's what it was when we entered this
1224          * function. send_ldap_error may have changed it, but we
1225          * should set it back so that the cleanup functions know
1226          * what they're doing.
1227          */
1228         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1229                 && rs->sr_entry
1230                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1231         {
1232                 entry_free( rs->sr_entry );
1233                 rs->sr_entry = NULL;
1234                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1235         }
1236
1237         return( rc );
1238 }
1239
1240 int
1241 slap_send_search_reference( Operation *op, SlapReply *rs )
1242 {
1243         BerElementBuffer berbuf;
1244         BerElement      *ber = (BerElement *) &berbuf;
1245         int rc = 0;
1246         int bytes;
1247
1248         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1249         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1250
1251         rs->sr_type = REP_SEARCHREF;
1252         if ( op->o_callback ) {
1253                 int             first = 1;
1254                 slap_callback   *sc = op->o_callback,
1255                                 *sc_next = op->o_callback;
1256
1257                 rc = SLAP_CB_CONTINUE;
1258                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1259                         sc_next = op->o_callback->sc_next;
1260                         if ( op->o_callback->sc_response ) {
1261                                 rc = op->o_callback->sc_response( op, rs );
1262                                 if ( first && op->o_callback == NULL ) {
1263                                         sc = NULL;
1264                                 }
1265                                 if ( rc != SLAP_CB_CONTINUE ) break;
1266                         }
1267                         first = 0;
1268                 }
1269
1270                 op->o_callback = sc;
1271                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1272         }
1273
1274         Debug( LDAP_DEBUG_TRACE,
1275                 "=> send_search_reference: dn=\"%s\"\n",
1276                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1277
1278         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1279                 ad_entry, NULL, ACL_READ, NULL ) )
1280         {
1281                 Debug( LDAP_DEBUG_ACL,
1282                         "send_search_reference: access to entry not allowed\n",
1283                     0, 0, 0 );
1284                 rc = 1;
1285                 goto rel;
1286         }
1287
1288         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1289                 ad_ref, NULL, ACL_READ, NULL ) )
1290         {
1291                 Debug( LDAP_DEBUG_ACL,
1292                         "send_search_reference: access "
1293                         "to reference not allowed\n",
1294                     0, 0, 0 );
1295                 rc = 1;
1296                 goto rel;
1297         }
1298
1299 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1300         if( op->o_domain_scope ) {
1301                 Debug( LDAP_DEBUG_ANY,
1302                         "send_search_reference: domainScope control in (%s)\n",
1303                         rs->sr_entry->e_dn, 0, 0 );
1304                 rc = 0;
1305                 goto rel;
1306         }
1307 #endif
1308
1309         if( rs->sr_ref == NULL ) {
1310                 Debug( LDAP_DEBUG_ANY,
1311                         "send_search_reference: null ref in (%s)\n",
1312                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1313                 rc = 1;
1314                 goto rel;
1315         }
1316
1317         if( op->o_protocol < LDAP_VERSION3 ) {
1318                 rc = 0;
1319                 /* save the references for the result */
1320                 if( rs->sr_ref[0].bv_val != NULL ) {
1321                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1322                                 rc = LDAP_OTHER;
1323                 }
1324                 goto rel;
1325         }
1326
1327 #ifdef LDAP_CONNECTIONLESS
1328         if( op->o_conn && op->o_conn->c_is_udp ) {
1329                 ber = op->o_res_ber;
1330         } else
1331 #endif
1332         {
1333                 ber_init_w_nullc( ber, LBER_USE_DER );
1334                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1335         }
1336
1337         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1338                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1339
1340         if( rc != -1 ) {
1341                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1342         }
1343
1344         if( rc != -1 ) {
1345                 rc = ber_printf( ber, /*"{"*/ "N}" );
1346         }
1347
1348         if ( rc == -1 ) {
1349                 Debug( LDAP_DEBUG_ANY,
1350                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1351
1352 #ifdef LDAP_CONNECTIONLESS
1353                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1354 #endif
1355                 ber_free_buf( ber );
1356                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1357                 goto rel;
1358         }
1359
1360 #ifdef LDAP_CONNECTIONLESS
1361         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1362 #endif
1363         bytes = send_ldap_ber( op->o_conn, ber );
1364         ber_free_buf( ber );
1365
1366         ldap_pvt_thread_mutex_lock( &num_sent_mutex );
1367         num_bytes_sent += bytes;
1368         num_refs_sent++;
1369         num_pdu_sent++;
1370         ldap_pvt_thread_mutex_unlock( &num_sent_mutex );
1371 #ifdef LDAP_CONNECTIONLESS
1372         }
1373 #endif
1374
1375         Statslog( LDAP_DEBUG_STATS2, "conn=%lu op=%lu REF dn=\"%s\"\n",
1376                 op->o_connid, op->o_opid, rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1377
1378         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1379
1380 rel:
1381         if ( op->o_callback ) {
1382                 int             first = 1;
1383                 slap_callback   *sc = op->o_callback,
1384                                 *sc_next = op->o_callback;
1385
1386                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1387                         sc_next = op->o_callback->sc_next;
1388                         if ( op->o_callback->sc_cleanup ) {
1389                                 (void)op->o_callback->sc_cleanup( op, rs );
1390                                 if ( first && op->o_callback == NULL ) {
1391                                         sc = NULL;
1392                                 }
1393                         }
1394                         first = 0;
1395                 }
1396
1397                 op->o_callback = sc;
1398         }
1399
1400         return rc;
1401 }
1402
1403 int
1404 str2result(
1405     char        *s,
1406     int         *code,
1407     char        **matched,
1408     char        **info
1409 )
1410 {
1411         int     rc;
1412         char    *c;
1413
1414         *code = LDAP_SUCCESS;
1415         *matched = NULL;
1416         *info = NULL;
1417
1418         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1419                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1420                     s, 0, 0 );
1421
1422                 return( -1 );
1423         }
1424
1425         rc = 0;
1426         while ( (s = strchr( s, '\n' )) != NULL ) {
1427                 *s++ = '\0';
1428                 if ( *s == '\0' ) {
1429                         break;
1430                 }
1431                 if ( (c = strchr( s, ':' )) != NULL ) {
1432                         c++;
1433                 }
1434
1435                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1436                         if ( c != NULL ) {
1437                                 *code = atoi( c );
1438                         }
1439                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1440                         if ( c != NULL ) {
1441                                 *matched = c;
1442                         }
1443                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1444                         if ( c != NULL ) {
1445                                 *info = c;
1446                         }
1447                 } else {
1448                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1449                             s, 0, 0 );
1450
1451                         rc = -1;
1452                 }
1453         }
1454
1455         return( rc );
1456 }
1457
1458 int slap_read_controls(
1459         Operation *op,
1460         SlapReply *rs,
1461         Entry *e,
1462         const struct berval *oid,
1463         LDAPControl **ctrl )
1464 {
1465         int rc;
1466         struct berval bv;
1467         BerElementBuffer berbuf;
1468         BerElement *ber = (BerElement *) &berbuf;
1469         LDAPControl c;
1470         ber_len_t       siz, len;
1471         Operation myop;
1472
1473         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1474                 oid->bv_val, e->e_dn, 0 );
1475
1476         rs->sr_entry = e;
1477         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1478                 op->o_preread_attrs : op->o_postread_attrs;
1479
1480         entry_flatsize( rs->sr_entry, &siz, &len, 0 );
1481         bv.bv_len = siz + len;
1482         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1483
1484         ber_init2( ber, &bv, LBER_USE_DER );
1485         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1486
1487         /* create new operation */
1488         myop = *op;
1489         myop.o_bd = NULL;
1490         myop.o_res_ber = ber;
1491
1492         rc = slap_send_search_entry( &myop, rs );
1493         if( rc ) return rc;
1494
1495         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1496
1497         if( rc == LBER_ERROR ) return LDAP_OTHER;
1498
1499         c.ldctl_oid = oid->bv_val;
1500         c.ldctl_iscritical = 0;
1501
1502         if ( ctrl == NULL ) {
1503                 /* first try */
1504                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1505         } else {
1506                 /* retry: free previous try */
1507                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
1508         }
1509
1510         **ctrl = c;
1511         return LDAP_SUCCESS;
1512 }
1513
1514 /* Map API errors to protocol errors... */
1515 int
1516 slap_map_api2result( SlapReply *rs )
1517 {
1518         switch(rs->sr_err) {
1519         case LDAP_SERVER_DOWN:
1520                 return LDAP_UNAVAILABLE;
1521         case LDAP_LOCAL_ERROR:
1522                 return LDAP_OTHER;
1523         case LDAP_ENCODING_ERROR:
1524         case LDAP_DECODING_ERROR:
1525                 return LDAP_PROTOCOL_ERROR;
1526         case LDAP_TIMEOUT:
1527                 return LDAP_UNAVAILABLE;
1528         case LDAP_AUTH_UNKNOWN:
1529                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1530         case LDAP_FILTER_ERROR:
1531                 rs->sr_text = "Filter error";
1532                 return LDAP_OTHER;
1533         case LDAP_USER_CANCELLED:
1534                 rs->sr_text = "User cancelled";
1535                 return LDAP_OTHER;
1536         case LDAP_PARAM_ERROR:
1537                 return LDAP_PROTOCOL_ERROR;
1538         case LDAP_NO_MEMORY:
1539                 return LDAP_OTHER;
1540         case LDAP_CONNECT_ERROR:
1541                 return LDAP_UNAVAILABLE;
1542         case LDAP_NOT_SUPPORTED:
1543                 return LDAP_UNWILLING_TO_PERFORM;
1544         case LDAP_CONTROL_NOT_FOUND:
1545                 return LDAP_PROTOCOL_ERROR;
1546         case LDAP_NO_RESULTS_RETURNED:
1547                 return LDAP_NO_SUCH_OBJECT;
1548         case LDAP_MORE_RESULTS_TO_RETURN:
1549                 rs->sr_text = "More results to return";
1550                 return LDAP_OTHER;
1551         case LDAP_CLIENT_LOOP:
1552         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1553                 return LDAP_LOOP_DETECT;
1554         default:
1555                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1556                 return rs->sr_err;
1557         }
1558 }
1559
1560
1561 slap_mask_t
1562 slap_attr_flags( AttributeName *an )
1563 {
1564         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1565
1566         if ( an == NULL ) {
1567                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1568
1569         } else {
1570                 flags |= an_find( an, &AllOper ) ?  SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1571                 flags |= an_find( an, &AllUser ) ?  SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1572         }
1573
1574         return flags;
1575 }
1576