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                                 rs->sr_type == REP_EXTENDED
 385                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 386                                 rs->sr_rspoid );
 387                 }
 388                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 389                         rc = ber_printf( ber, "tO",
 390                                 rs->sr_type == REP_EXTENDED
 391                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 392                                 rs->sr_rspdata );
 393                 }
 394         }
 395
 396         if( rc != -1 ) {
 397                 rc = ber_printf( ber, /*"{"*/ "N}" );
 398         }
 399
 400         if( rc != -1 ) {
 401                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 402         }
 403
 404         if( rc != -1 ) {
 405                 rc = ber_printf( ber, /*"{"*/ "N}" );
 406         }
 407
 408 #ifdef LDAP_CONNECTIONLESS
 409         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 410                 && rc != -1 )
 411         {
 412                 rc = ber_printf( ber, /*"{"*/ "N}" );
 413         }
 414 #endif
 415
 416         if ( rc == -1 ) {
 417                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 418
 419 #ifdef LDAP_CONNECTIONLESS
 420                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 421 #endif
 422                 {
 423                         ber_free_buf( ber );
 424                 }
 425                 goto cleanup;
 426         }
 427
 428         /* send BER */
 429         bytes = send_ldap_ber( op->o_conn, ber );
 430 #ifdef LDAP_CONNECTIONLESS
 431         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 432 #endif
 433         {
 434                 ber_free_buf( ber );
 435         }
 436
 437         if ( bytes < 0 ) {
 438                 Debug( LDAP_DEBUG_ANY,
 439                         "send_ldap_response: ber write failed\n",
 440                         0, 0, 0 );
 441
 442                 goto cleanup;
 443         }
 444
 445 #ifdef LDAP_SLAPI
 446         if ( op->o_pb ) {
 447                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE, (void *)rs->sr_err );
 448                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 449                         (void *)rs->sr_matched );
 450                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT, (void *)rs->sr_text );
 451         }
 452 #endif /* LDAP_SLAPI */
 453
 454         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 455         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 456         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, bytes );
 457         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 458
 459 cleanup:;
 460         /* Tell caller that we did this for real, as opposed to being
 461          * overridden by a callback
 462          */
 463         rc = SLAP_CB_CONTINUE;
 464
 465 clean2:;
 466         if ( op->o_callback ) {
 467                 int             first = 1;
 468                 slap_callback   *sc = op->o_callback,
 469                                 *sc_next = op->o_callback;
 470
 471                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 472                         sc_next = op->o_callback->sc_next;
 473                         if ( op->o_callback->sc_cleanup ) {
 474                                 (void)op->o_callback->sc_cleanup( op, rs );
 475                                 if ( first && op->o_callback == NULL ) {
 476                                         sc = NULL;
 477                                 }
 478                         }
 479                         first = 0;
 480                 }
 481
 482                 op->o_callback = sc;
 483         }
 484
 485
 486         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 487                 free( (char *)rs->sr_matched );
 488                 rs->sr_matched = NULL;
 489         }
 490
 491         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 492                 ber_bvarray_free( rs->sr_ref );
 493                 rs->sr_ref = NULL;
 494         }
 495
 496         return rc;
 497 }
 498
 499
 500 void
 501 send_ldap_disconnect( Operation *op, SlapReply *rs )
 502 {
 503 #define LDAP_UNSOLICITED_ERROR(e) \
 504         (  (e) == LDAP_PROTOCOL_ERROR \
 505         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 506         || (e) == LDAP_UNAVAILABLE )
 507
 508         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 509
 510         rs->sr_type = REP_EXTENDED;
 511
 512         Debug( LDAP_DEBUG_TRACE,
 513                 "send_ldap_disconnect %d:%s\n",
 514                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 515
 516         if ( op->o_protocol < LDAP_VERSION3 ) {
 517                 rs->sr_rspoid = NULL;
 518                 rs->sr_tag = req2res( op->o_tag );
 519                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 520
 521         } else {
 522                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 523                 rs->sr_tag = LDAP_RES_EXTENDED;
 524                 rs->sr_msgid = 0;
 525         }
 526
 527         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 528                 Statslog( LDAP_DEBUG_STATS,
 529                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 530                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 531                         rs->sr_text ? rs->sr_text : "", 0 );
 532         }
 533 }
 534
 535 void
 536 slap_send_ldap_result( Operation *op, SlapReply *rs )
 537 {
 538         char *tmp = NULL;
 539         const char *otext = rs->sr_text;
 540         BerVarray oref = rs->sr_ref;
 541
 542         rs->sr_type = REP_RESULT;
 543
 544         assert( !LDAP_API_ERROR( rs->sr_err ));
 545
 546         Debug( LDAP_DEBUG_TRACE,
 547                 "send_ldap_result: %s p=%d\n",
 548                 op->o_log_prefix, op->o_protocol, 0 );
 549
 550         Debug( LDAP_DEBUG_ARGS,
 551                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 552                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 553                 rs->sr_text ? rs->sr_text : "" );
 554
 555
 556         if( rs->sr_ref ) {
 557                 Debug( LDAP_DEBUG_ARGS,
 558                         "send_ldap_result: referral=\"%s\"\n",
 559                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 560                         NULL, NULL );
 561         }
 562
 563         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 564
 565         if ( rs->sr_err == LDAP_REFERRAL ) {
 566 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
 567                 if( op->o_domain_scope ) {
 568                         rs->sr_ref = NULL;
 569                 }
 570 #endif
 571                 if( rs->sr_ref == NULL ) {
 572                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 573                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 574                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 575                 }
 576         }
 577
 578 #ifdef LDAP_SLAPI
 579         /*
 580          * Call pre-result plugins. To avoid infinite recursion plugins
 581          * should just set SLAPI_RESULT_CODE rather than sending a
 582          * result if they wish to change the result.
 583          */
 584         if ( op->o_pb != NULL ) {
 585                 slapi_int_pblock_set_operation( op->o_pb, op );
 586                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_CODE,
 587                         (void *)rs->sr_err );
 588                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_TEXT,
 589                         (void *)rs->sr_text );
 590                 slapi_pblock_set( op->o_pb, SLAPI_RESULT_MATCHED,
 591                         (void *)rs->sr_matched );
 592
 593                 (void) slapi_int_call_plugins( op->o_bd, SLAPI_PLUGIN_PRE_RESULT_FN,
 594                         op->o_pb );
 595         }
 596 #endif /* LDAP_SLAPI */
 597
 598         if ( op->o_protocol < LDAP_VERSION3 ) {
 599                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 600                 rs->sr_text = tmp;
 601                 rs->sr_ref = NULL;
 602         }
 603
 604         rs->sr_tag = req2res( op->o_tag );
 605         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 606
 607         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 608                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 609                         char nbuf[64];
 610                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 611                                 rs->sr_err, rs->sr_nentries );
 612
 613                         Statslog( LDAP_DEBUG_STATS,
 614                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 615                                 op->o_log_prefix, rs->sr_tag, nbuf,
 616                                 rs->sr_text ? rs->sr_text : "", 0 );
 617                 } else {
 618                         Statslog( LDAP_DEBUG_STATS,
 619                                 "%s RESULT tag=%lu err=%d text=%s\n",
 620                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 621                                 rs->sr_text ? rs->sr_text : "", 0 );
 622                 }
 623         }
 624
 625         if( tmp != NULL ) ch_free(tmp);
 626         rs->sr_text = otext;
 627         rs->sr_ref = oref;
 628 }
 629
 630 void
 631 send_ldap_sasl( Operation *op, SlapReply *rs )
 632 {
 633         rs->sr_type = REP_SASL;
 634         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 635                 rs->sr_err,
 636                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 637
 638         rs->sr_tag = req2res( op->o_tag );
 639         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 640
 641         send_ldap_response( op, rs );
 642 }
 643
 644 void
 645 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 646 {
 647         rs->sr_type = REP_EXTENDED;
 648
 649         Debug( LDAP_DEBUG_TRACE,
 650                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 651                 rs->sr_err,
 652                 rs->sr_rspoid ? rs->sr_rspoid : "",
 653                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 654
 655         rs->sr_tag = req2res( op->o_tag );
 656         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 657
 658         send_ldap_response( op, rs );
 659 }
 660
 661 void
 662 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 663 {
 664         rs->sr_type = REP_INTERMEDIATE;
 665         Debug( LDAP_DEBUG_TRACE,
 666                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 667                 rs->sr_err,
 668                 rs->sr_rspoid ? rs->sr_rspoid : "",
 669                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 670         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 671         rs->sr_msgid = op->o_msgid;
 672         send_ldap_response( op, rs );
 673 }
 674
 675 int
 676 slap_send_search_entry( Operation *op, SlapReply *rs )
 677 {
 678         BerElementBuffer berbuf;
 679         BerElement      *ber = (BerElement *) &berbuf;
 680         Attribute       *a;
 681         int             i, j, rc=-1, bytes;
 682         char            *edn;
 683         int             userattrs;
 684         AccessControlState acl_state = ACL_STATE_INIT;
 685 #ifdef LDAP_SLAPI
 686         /* Support for computed attribute plugins */
 687         computed_attr_context    ctx;
 688         AttributeName   *anp;
 689 #endif
 690         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 691
 692         /* a_flags: array of flags telling if the i-th element will be
 693          *          returned or filtered out
 694          * e_flags: array of a_flags
 695          */
 696         char **e_flags = NULL;
 697
 698         rs->sr_type = REP_SEARCH;
 699
 700         /* eventually will loop through generated operational attribute types
 701          * currently implemented types include:
 702          *      entryDN, subschemaSubentry, and hasSubordinates */
 703         /* NOTE: moved before overlays callback circling because
 704          * they may modify entry and other stuff in rs */
 705         /* check for special all operational attributes ("+") type */
 706         /* FIXME: maybe we could se this flag at the operation level;
 707          * however, in principle the caller of send_search_entry() may
 708          * change the attribute list at each call */
 709         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 710
 711         rc = backend_operational( op, rs );
 712         if ( rc ) {
 713                 goto error_return;
 714         }
 715
 716         if ( op->o_callback ) {
 717                 int             first = 1;
 718                 slap_callback   *sc = op->o_callback,
 719                                 *sc_next = op->o_callback;
 720
 721                 rc = SLAP_CB_CONTINUE;
 722                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 723                         sc_next = op->o_callback->sc_next;
 724                         if ( op->o_callback->sc_response ) {
 725                                 rc = op->o_callback->sc_response( op, rs );
 726                                 if ( first && op->o_callback == NULL ) {
 727                                         sc = NULL;
 728                                 }
 729                                 if ( rc != SLAP_CB_CONTINUE ) break;
 730                         }
 731                         first = 0;
 732                 }
 733
 734                 op->o_callback = sc;
 735                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 736         }
 737
 738         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 739                 op->o_connid, rs->sr_entry->e_name.bv_val,
 740                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 741
 742         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 743                 Debug( LDAP_DEBUG_ACL,
 744                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 745                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 746
 747                 rc = 1;
 748                 goto error_return;
 749         }
 750
 751         edn = rs->sr_entry->e_nname.bv_val;
 752
 753         if ( op->o_res_ber ) {
 754                 /* read back control or LDAP_CONNECTIONLESS */
 755             ber = op->o_res_ber;
 756         } else {
 757                 ber_len_t       siz, len;
 758                 struct berval   bv;
 759
 760                 entry_flatsize( rs->sr_entry, &siz, &len, 0 );
 761                 bv.bv_len = siz + len;
 762                 bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
 763
 764                 ber_init2( ber, &bv, LBER_USE_DER );
 765                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 766         }
 767
 768 #ifdef LDAP_CONNECTIONLESS
 769         if ( op->o_conn && op->o_conn->c_is_udp ) {
 770                 /* CONNECTIONLESS */
 771                 if ( op->o_protocol == LDAP_VERSION2 ) {
 772                 rc = ber_printf(ber, "t{O{" /*}}*/,
 773                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 774                 } else {
 775                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 776                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 777                 }
 778         } else
 779 #endif
 780         if ( op->o_res_ber ) {
 781                 /* read back control */
 782             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 783         } else {
 784             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 785                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 786         }
 787
 788         if ( rc == -1 ) {
 789                 Debug( LDAP_DEBUG_ANY,
 790                         "send_search_entry: conn %lu  ber_printf failed\n",
 791                         op->o_connid, 0, 0 );
 792
 793                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 794                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 795                 goto error_return;
 796         }
 797
 798         /* check for special all user attributes ("*") type */
 799         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 800
 801         /* create an array of arrays of flags. Each flag corresponds
 802          * to particular value of attribute and equals 1 if value matches
 803          * to ValuesReturnFilter or 0 if not
 804          */
 805         if ( op->o_vrFilter != NULL ) {
 806                 int     k = 0;
 807                 size_t  size;
 808
 809                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 810                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 811                 }
 812
 813                 size = i * sizeof(char *) + k;
 814                 if ( size > 0 ) {
 815                         char    *a_flags;
 816                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 817                         if( e_flags == NULL ) {
 818                         Debug( LDAP_DEBUG_ANY,
 819                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 820                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 821                                 ber_free( ber, 1 );
 822
 823                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 824                                 goto error_return;
 825                         }
 826                         a_flags = (char *)(e_flags + i);
 827                         memset( a_flags, 0, k );
 828                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 829                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 830                                 e_flags[i] = a_flags;
 831                                 a_flags += j;
 832                         }
 833
 834                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 835                         if ( rc == -1 ) {
 836                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 837                                         "conn %lu matched values filtering failed\n",
 838                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 839                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 840                                 send_ldap_error( op, rs, LDAP_OTHER,
 841                                         "matched values filtering error" );
 842                                 goto error_return;
 843                         }
 844                 }
 845         }
 846
 847         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 848                 AttributeDescription *desc = a->a_desc;
 849                 int finish = 0;
 850
 851                 if ( rs->sr_attrs == NULL ) {
 852                         /* all attrs request, skip operational attributes */
 853                         if( is_at_operational( desc->ad_type ) ) {
 854                                 continue;
 855                         }
 856
 857                 } else {
 858                         /* specific attrs requested */
 859                         if ( is_at_operational( desc->ad_type ) ) {
 860                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 861                                                 !ad_inlist( desc, rs->sr_attrs ) )
 862                                 {
 863                                         continue;
 864                                 }
 865
 866                         } else {
 867                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) )
 868                                 {
 869                                         continue;
 870                                 }
 871                         }
 872                 }
 873
 874                 if ( op->ors_attrsonly ) {
 875                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 876                                 ACL_READ, &acl_state ) )
 877                         {
 878                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 879                                         "conn %lu access to attribute %s not allowed\n",
 880                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 881                                 continue;
 882                         }
 883
 884                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 885                                 Debug( LDAP_DEBUG_ANY,
 886                                         "send_search_entry: conn %lu  ber_printf failed\n",
 887                                         op->o_connid, 0, 0 );
 888
 889                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 890                                 send_ldap_error( op, rs, LDAP_OTHER,
 891                                         "encoding description error");
 892                                 goto error_return;
 893                         }
 894                         finish = 1;
 895
 896                 } else {
 897                         int first = 1;
 898                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 899                                 if ( ! access_allowed( op, rs->sr_entry,
 900                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 901                                 {
 902                                         Debug( LDAP_DEBUG_ACL,
 903                                                 "send_search_entry: conn %lu "
 904                                                 "access to attribute %s, value #%d not allowed\n",
 905                                                 op->o_connid, desc->ad_cname.bv_val, i );
 906
 907                                         continue;
 908                                 }
 909
 910                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 911                                         continue;
 912                                 }
 913
 914                                 if ( first ) {
 915                                         first = 0;
 916                                         finish = 1;
 917                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 918                                                 Debug( LDAP_DEBUG_ANY,
 919                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 920                                                         op->o_connid, 0, 0 );
 921
 922                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 923                                                 send_ldap_error( op, rs, LDAP_OTHER,
 924                                                         "encoding description error");
 925                                                 goto error_return;
 926                                         }
 927                                 }
 928                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 929                                         Debug( LDAP_DEBUG_ANY,
 930                                                 "send_search_entry: conn %lu  "
 931                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 932
 933                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 934                                         send_ldap_error( op, rs, LDAP_OTHER,
 935                                                 "encoding values error" );
 936                                         goto error_return;
 937                                 }
 938                         }
 939                 }
 940
 941                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 942                         Debug( LDAP_DEBUG_ANY,
 943                                 "send_search_entry: conn %lu ber_printf failed\n",
 944                                 op->o_connid, 0, 0 );
 945
 946                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 947                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 948                         goto error_return;
 949                 }
 950         }
 951
 952         /* NOTE: moved before overlays callback circling because
 953          * they may modify entry and other stuff in rs */
 954         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 955                 int     k = 0;
 956                 size_t  size;
 957
 958                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 959                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 960                 }
 961
 962                 size = i * sizeof(char *) + k;
 963                 if ( size > 0 ) {
 964                         char    *a_flags, **tmp;
 965
 966                         /*
 967                          * Reuse previous memory - we likely need less space
 968                          * for operational attributes
 969                          */
 970                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 971                                 op->o_tmpmemctx );
 972                         if ( tmp == NULL ) {
 973                                 Debug( LDAP_DEBUG_ANY,
 974                                         "send_search_entry: conn %lu "
 975                                         "not enough memory "
 976                                         "for matched values filtering\n",
 977                                         op->o_connid, 0, 0 );
 978                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 979                                 send_ldap_error( op, rs, LDAP_OTHER,
 980                                         "not enough memory for matched values filtering" );
 981                                 goto error_return;
 982                         }
 983                         e_flags = tmp;
 984                         a_flags = (char *)(e_flags + i);
 985                         memset( a_flags, 0, k );
 986                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 987                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 988                                 e_flags[i] = a_flags;
 989                                 a_flags += j;
 990                         }
 991                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
 992
 993                         if ( rc == -1 ) {
 994                                 Debug( LDAP_DEBUG_ANY,
 995                                         "send_search_entry: conn %lu "
 996                                         "matched values filtering failed\n",
 997                                         op->o_connid ? op->o_connid : 0, 0, 0);
 998                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 999                                 send_ldap_error( op, rs, LDAP_OTHER,
1000                                         "matched values filtering error" );
1001                                 goto error_return;
1002                         }
1003                 }
1004         }
1005
1006         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1007                 AttributeDescription *desc = a->a_desc;
1008
1009                 if ( rs->sr_attrs == NULL ) {
1010                         /* all attrs request, skip operational attributes */
1011                         if( is_at_operational( desc->ad_type ) ) {
1012                                 continue;
1013                         }
1014
1015                 } else {
1016                         /* specific attrs requested */
1017                         if( is_at_operational( desc->ad_type ) ) {
1018                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1019                                                 !ad_inlist( desc, rs->sr_attrs ) )
1020                                 {
1021                                         continue;
1022                                 }
1023                         } else {
1024                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1025                                         continue;
1026                                 }
1027                         }
1028                 }
1029
1030                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1031                         ACL_READ, &acl_state ) )
1032                 {
1033                         Debug( LDAP_DEBUG_ACL,
1034                                 "send_search_entry: conn %lu "
1035                                 "access to attribute %s not allowed\n",
1036                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1037
1038                         continue;
1039                 }
1040
1041                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1042                 if ( rc == -1 ) {
1043                         Debug( LDAP_DEBUG_ANY,
1044                                 "send_search_entry: conn %lu  "
1045                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1046
1047                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1048                         send_ldap_error( op, rs, LDAP_OTHER,
1049                                 "encoding description error" );
1050                         goto error_return;
1051                 }
1052
1053                 if ( ! op->ors_attrsonly ) {
1054                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1055                                 if ( ! access_allowed( op, rs->sr_entry,
1056                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1057                                 {
1058                                         Debug( LDAP_DEBUG_ACL,
1059                                                 "send_search_entry: conn %lu "
1060                                                 "access to %s, value %d not allowed\n",
1061                                                 op->o_connid, desc->ad_cname.bv_val, i );
1062
1063                                         continue;
1064                                 }
1065
1066                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1067                                         continue;
1068                                 }
1069
1070                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1071                                         Debug( LDAP_DEBUG_ANY,
1072                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1073                                                 op->o_connid, 0, 0 );
1074
1075                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1076                                         send_ldap_error( op, rs, LDAP_OTHER,
1077                                                 "encoding values error" );
1078                                         goto error_return;
1079                                 }
1080                         }
1081                 }
1082
1083                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1084                         Debug( LDAP_DEBUG_ANY,
1085                                 "send_search_entry: conn %lu  ber_printf failed\n",
1086                                 op->o_connid, 0, 0 );
1087
1088                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1089                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1090                         goto error_return;
1091                 }
1092         }
1093
1094 #ifdef LDAP_SLAPI
1095         /*
1096          * First, setup the computed attribute context that is
1097          * passed to all plugins.
1098          */
1099         if ( op->o_pb ) {
1100                 ctx.cac_pb = op->o_pb;
1101                 ctx.cac_attrs = rs->sr_attrs;
1102                 ctx.cac_attrsonly = op->ors_attrsonly;
1103                 ctx.cac_userattrs = userattrs;
1104                 ctx.cac_opattrs = rs->sr_attr_flags;
1105                 ctx.cac_acl_state = acl_state;
1106                 ctx.cac_private = (void *)ber;
1107
1108                 /*
1109                  * For each client requested attribute, call the plugins.
1110                  */
1111                 if ( rs->sr_attrs != NULL ) {
1112                         for ( anp = rs->sr_attrs; anp->an_name.bv_val != NULL; anp++ ) {
1113                                 rc = compute_evaluator( &ctx, anp->an_name.bv_val,
1114                                         rs->sr_entry, slapi_int_compute_output_ber );
1115                                 if ( rc == 1 ) break;
1116                         }
1117                 } else {
1118                         /*
1119                          * Technically we shouldn't be returning operational attributes
1120                          * when the user requested only user attributes. We'll let the
1121                          * plugin decide whether to be naughty or not.
1122                          */
1123                         rc = compute_evaluator( &ctx, "*",
1124                                 rs->sr_entry, slapi_int_compute_output_ber );
1125                 }
1126                 if ( rc == 1 ) {
1127                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1128                         send_ldap_error( op, rs, LDAP_OTHER, "computed attribute error" );
1129                         goto error_return;
1130                 }
1131         }
1132 #endif /* LDAP_SLAPI */
1133
1134         /* free e_flags */
1135         if ( e_flags ) {
1136                 slap_sl_free( e_flags, op->o_tmpmemctx );
1137                 e_flags = NULL;
1138         }
1139
1140         rc = ber_printf( ber, /*{{*/ "}N}" );
1141
1142         if( rc != -1 ) {
1143                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1144         }
1145
1146         if( rc != -1 ) {
1147 #ifdef LDAP_CONNECTIONLESS
1148                 if( op->o_conn && op->o_conn->c_is_udp ) {
1149                         if ( op->o_protocol != LDAP_VERSION2 ) {
1150                                 rc = ber_printf( ber, /*{*/ "N}" );
1151                         }
1152                 } else
1153 #endif
1154                 if ( op->o_res_ber == NULL ) {
1155                         rc = ber_printf( ber, /*{*/ "N}" );
1156                 }
1157         }
1158
1159         if ( rc == -1 ) {
1160                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1161
1162                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1163                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1164                 rc = 1;
1165                 goto error_return;
1166         }
1167
1168         if ( op->o_res_ber == NULL ) {
1169                 bytes = send_ldap_ber( op->o_conn, ber );
1170                 ber_free_buf( ber );
1171
1172                 if ( bytes < 0 ) {
1173                         Debug( LDAP_DEBUG_ANY,
1174                                 "send_search_entry: conn %lu  ber write failed.\n",
1175                                 op->o_connid, 0, 0 );
1176
1177                         rc = -1;
1178                         goto error_return;
1179                 }
1180                 rs->sr_nentries++;
1181
1182                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1183                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, bytes );
1184                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1185                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1186                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1187         }
1188
1189         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1190             op->o_log_prefix, rs->sr_entry->e_dn, 0, 0, 0 );
1191
1192         Debug( LDAP_DEBUG_TRACE,
1193                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1194
1195         rc = 0;
1196
1197 error_return:;
1198         if ( op->o_callback ) {
1199                 int             first = 1;
1200                 slap_callback   *sc = op->o_callback,
1201                                 *sc_next = op->o_callback;
1202
1203                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1204                         sc_next = op->o_callback->sc_next;
1205                         if ( op->o_callback->sc_cleanup ) {
1206                                 (void)op->o_callback->sc_cleanup( op, rs );
1207                                 if ( first && op->o_callback == NULL ) {
1208                                         sc = NULL;
1209                                 }
1210                         }
1211                         first = 0;
1212                 }
1213
1214                 op->o_callback = sc;
1215         }
1216
1217         if ( e_flags ) {
1218                 slap_sl_free( e_flags, op->o_tmpmemctx );
1219         }
1220
1221         if ( rs->sr_operational_attrs ) {
1222                 attrs_free( rs->sr_operational_attrs );
1223                 rs->sr_operational_attrs = NULL;
1224         }
1225         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1226
1227         /* FIXME: I think rs->sr_type should be explicitly set to
1228          * REP_SEARCH here. That's what it was when we entered this
1229          * function. send_ldap_error may have changed it, but we
1230          * should set it back so that the cleanup functions know
1231          * what they're doing.
1232          */
1233         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1234                 && rs->sr_entry
1235                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1236         {
1237                 entry_free( rs->sr_entry );
1238                 rs->sr_entry = NULL;
1239                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1240         }
1241
1242         return( rc );
1243 }
1244
1245 int
1246 slap_send_search_reference( Operation *op, SlapReply *rs )
1247 {
1248         BerElementBuffer berbuf;
1249         BerElement      *ber = (BerElement *) &berbuf;
1250         int rc = 0;
1251         int bytes;
1252
1253         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1254         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1255
1256         rs->sr_type = REP_SEARCHREF;
1257         if ( op->o_callback ) {
1258                 int             first = 1;
1259                 slap_callback   *sc = op->o_callback,
1260                                 *sc_next = op->o_callback;
1261
1262                 rc = SLAP_CB_CONTINUE;
1263                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1264                         sc_next = op->o_callback->sc_next;
1265                         if ( op->o_callback->sc_response ) {
1266                                 rc = op->o_callback->sc_response( op, rs );
1267                                 if ( first && op->o_callback == NULL ) {
1268                                         sc = NULL;
1269                                 }
1270                                 if ( rc != SLAP_CB_CONTINUE ) break;
1271                         }
1272                         first = 0;
1273                 }
1274
1275                 op->o_callback = sc;
1276                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1277         }
1278
1279         Debug( LDAP_DEBUG_TRACE,
1280                 "=> send_search_reference: dn=\"%s\"\n",
1281                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1282
1283         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1284                 ad_entry, NULL, ACL_READ, NULL ) )
1285         {
1286                 Debug( LDAP_DEBUG_ACL,
1287                         "send_search_reference: access to entry not allowed\n",
1288                     0, 0, 0 );
1289                 rc = 1;
1290                 goto rel;
1291         }
1292
1293         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1294                 ad_ref, NULL, ACL_READ, NULL ) )
1295         {
1296                 Debug( LDAP_DEBUG_ACL,
1297                         "send_search_reference: access "
1298                         "to reference not allowed\n",
1299                     0, 0, 0 );
1300                 rc = 1;
1301                 goto rel;
1302         }
1303
1304 #ifdef LDAP_CONTROL_X_DOMAIN_SCOPE
1305         if( op->o_domain_scope ) {
1306                 Debug( LDAP_DEBUG_ANY,
1307                         "send_search_reference: domainScope control in (%s)\n",
1308                         rs->sr_entry->e_dn, 0, 0 );
1309                 rc = 0;
1310                 goto rel;
1311         }
1312 #endif
1313
1314         if( rs->sr_ref == NULL ) {
1315                 Debug( LDAP_DEBUG_ANY,
1316                         "send_search_reference: null ref in (%s)\n",
1317                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1318                 rc = 1;
1319                 goto rel;
1320         }
1321
1322         if( op->o_protocol < LDAP_VERSION3 ) {
1323                 rc = 0;
1324                 /* save the references for the result */
1325                 if( rs->sr_ref[0].bv_val != NULL ) {
1326                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1327                                 rc = LDAP_OTHER;
1328                 }
1329                 goto rel;
1330         }
1331
1332 #ifdef LDAP_CONNECTIONLESS
1333         if( op->o_conn && op->o_conn->c_is_udp ) {
1334                 ber = op->o_res_ber;
1335         } else
1336 #endif
1337         {
1338                 ber_init_w_nullc( ber, LBER_USE_DER );
1339                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1340         }
1341
1342         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1343                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1344
1345         if( rc != -1 ) {
1346                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1347         }
1348
1349         if( rc != -1 ) {
1350                 rc = ber_printf( ber, /*"{"*/ "N}" );
1351         }
1352
1353         if ( rc == -1 ) {
1354                 Debug( LDAP_DEBUG_ANY,
1355                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1356
1357 #ifdef LDAP_CONNECTIONLESS
1358                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1359 #endif
1360                 ber_free_buf( ber );
1361                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1362                 goto rel;
1363         }
1364
1365 #ifdef LDAP_CONNECTIONLESS
1366         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1367 #endif
1368         bytes = send_ldap_ber( op->o_conn, ber );
1369         ber_free_buf( ber );
1370
1371         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1372         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, bytes );
1373         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1374         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1375         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1376 #ifdef LDAP_CONNECTIONLESS
1377         }
1378 #endif
1379
1380         Statslog( LDAP_DEBUG_STATS2, "%s REF dn=\"%s\"\n",
1381                 op->o_log_prefix, rs->sr_entry ? rs->sr_entry->e_dn : "(null)",
1382                 0, 0, 0 );
1383
1384         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1385
1386 rel:
1387         if ( op->o_callback ) {
1388                 int             first = 1;
1389                 slap_callback   *sc = op->o_callback,
1390                                 *sc_next = op->o_callback;
1391
1392                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1393                         sc_next = op->o_callback->sc_next;
1394                         if ( op->o_callback->sc_cleanup ) {
1395                                 (void)op->o_callback->sc_cleanup( op, rs );
1396                                 if ( first && op->o_callback == NULL ) {
1397                                         sc = NULL;
1398                                 }
1399                         }
1400                         first = 0;
1401                 }
1402
1403                 op->o_callback = sc;
1404         }
1405
1406         return rc;
1407 }
1408
1409 int
1410 str2result(
1411     char        *s,
1412     int         *code,
1413     char        **matched,
1414     char        **info
1415 )
1416 {
1417         int     rc;
1418         char    *c;
1419
1420         *code = LDAP_SUCCESS;
1421         *matched = NULL;
1422         *info = NULL;
1423
1424         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1425                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1426                     s, 0, 0 );
1427
1428                 return( -1 );
1429         }
1430
1431         rc = 0;
1432         while ( (s = strchr( s, '\n' )) != NULL ) {
1433                 *s++ = '\0';
1434                 if ( *s == '\0' ) {
1435                         break;
1436                 }
1437                 if ( (c = strchr( s, ':' )) != NULL ) {
1438                         c++;
1439                 }
1440
1441                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1442                         if ( c != NULL ) {
1443                                 *code = atoi( c );
1444                         }
1445                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1446                         if ( c != NULL ) {
1447                                 *matched = c;
1448                         }
1449                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1450                         if ( c != NULL ) {
1451                                 *info = c;
1452                         }
1453                 } else {
1454                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1455                             s, 0, 0 );
1456
1457                         rc = -1;
1458                 }
1459         }
1460
1461         return( rc );
1462 }
1463
1464 int slap_read_controls(
1465         Operation *op,
1466         SlapReply *rs,
1467         Entry *e,
1468         const struct berval *oid,
1469         LDAPControl **ctrl )
1470 {
1471         int rc;
1472         struct berval bv;
1473         BerElementBuffer berbuf;
1474         BerElement *ber = (BerElement *) &berbuf;
1475         LDAPControl c;
1476         ber_len_t       siz, len;
1477         Operation myop;
1478
1479         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1480                 oid->bv_val, e->e_dn, 0 );
1481
1482         rs->sr_entry = e;
1483         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1484                 op->o_preread_attrs : op->o_postread_attrs;
1485
1486         entry_flatsize( rs->sr_entry, &siz, &len, 0 );
1487         bv.bv_len = siz + len;
1488         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1489
1490         ber_init2( ber, &bv, LBER_USE_DER );
1491         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1492
1493         /* create new operation */
1494         myop = *op;
1495         myop.o_bd = NULL;
1496         myop.o_res_ber = ber;
1497
1498         rc = slap_send_search_entry( &myop, rs );
1499         if( rc ) return rc;
1500
1501         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1502
1503         if( rc == LBER_ERROR ) return LDAP_OTHER;
1504
1505         c.ldctl_oid = oid->bv_val;
1506         c.ldctl_iscritical = 0;
1507
1508         if ( ctrl == NULL ) {
1509                 /* first try */
1510                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1511         } else {
1512                 /* retry: free previous try */
1513                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
1514         }
1515
1516         **ctrl = c;
1517         return LDAP_SUCCESS;
1518 }
1519
1520 /* Map API errors to protocol errors... */
1521 int
1522 slap_map_api2result( SlapReply *rs )
1523 {
1524         switch(rs->sr_err) {
1525         case LDAP_SERVER_DOWN:
1526                 return LDAP_UNAVAILABLE;
1527         case LDAP_LOCAL_ERROR:
1528                 return LDAP_OTHER;
1529         case LDAP_ENCODING_ERROR:
1530         case LDAP_DECODING_ERROR:
1531                 return LDAP_PROTOCOL_ERROR;
1532         case LDAP_TIMEOUT:
1533                 return LDAP_UNAVAILABLE;
1534         case LDAP_AUTH_UNKNOWN:
1535                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1536         case LDAP_FILTER_ERROR:
1537                 rs->sr_text = "Filter error";
1538                 return LDAP_OTHER;
1539         case LDAP_USER_CANCELLED:
1540                 rs->sr_text = "User cancelled";
1541                 return LDAP_OTHER;
1542         case LDAP_PARAM_ERROR:
1543                 return LDAP_PROTOCOL_ERROR;
1544         case LDAP_NO_MEMORY:
1545                 return LDAP_OTHER;
1546         case LDAP_CONNECT_ERROR:
1547                 return LDAP_UNAVAILABLE;
1548         case LDAP_NOT_SUPPORTED:
1549                 return LDAP_UNWILLING_TO_PERFORM;
1550         case LDAP_CONTROL_NOT_FOUND:
1551                 return LDAP_PROTOCOL_ERROR;
1552         case LDAP_NO_RESULTS_RETURNED:
1553                 return LDAP_NO_SUCH_OBJECT;
1554         case LDAP_MORE_RESULTS_TO_RETURN:
1555                 rs->sr_text = "More results to return";
1556                 return LDAP_OTHER;
1557         case LDAP_CLIENT_LOOP:
1558         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1559                 return LDAP_LOOP_DETECT;
1560         default:
1561                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1562                 return rs->sr_err;
1563         }
1564 }
1565
1566
1567 slap_mask_t
1568 slap_attr_flags( AttributeName *an )
1569 {
1570         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1571
1572         if ( an == NULL ) {
1573                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1574
1575         } else {
1576                 flags |= an_find( an, &AllOper ) ?  SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1577                 flags |= an_find( an, &AllUser ) ?  SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1578         }
1579
1580         return flags;
1581 }
1582