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 1998-2007 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 const struct berval slap_dummy_bv = BER_BVNULL;
  41
  42 int slap_null_cb( Operation *op, SlapReply *rs )
  43 {
  44         return 0;
  45 }
  46
  47 int slap_freeself_cb( Operation *op, SlapReply *rs )
  48 {
  49         assert( op->o_callback != NULL );
  50
  51         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  52         op->o_callback = NULL;
  53
  54         return SLAP_CB_CONTINUE;
  55 }
  56
  57 static char *v2ref( BerVarray ref, const char *text )
  58 {
  59         size_t len = 0, i = 0;
  60         char *v2;
  61
  62         if(ref == NULL) {
  63                 if (text) {
  64                         return ch_strdup(text);
  65                 } else {
  66                         return NULL;
  67                 }
  68         }
  69
  70         if ( text != NULL ) {
  71                 len = strlen( text );
  72                 if (text[len-1] != '\n') {
  73                     i = 1;
  74                 }
  75         }
  76
  77         v2 = ch_malloc( len+i+sizeof("Referral:") );
  78
  79         if( text != NULL ) {
  80                 strcpy(v2, text);
  81                 if( i ) {
  82                         v2[len++] = '\n';
  83                 }
  84         }
  85         strcpy( v2+len, "Referral:" );
  86         len += sizeof("Referral:");
  87
  88         for( i=0; ref[i].bv_val != NULL; i++ ) {
  89                 v2 = ch_realloc( v2, len + ref[i].bv_len + 1 );
  90                 v2[len-1] = '\n';
  91                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
  92                 len += ref[i].bv_len;
  93                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
  94                         ++len;
  95                 }
  96         }
  97
  98         v2[len-1] = '\0';
  99         return v2;
 100 }
 101
 102 ber_tag_t
 103 slap_req2res( ber_tag_t tag )
 104 {
 105         switch( tag ) {
 106         case LDAP_REQ_ADD:
 107         case LDAP_REQ_BIND:
 108         case LDAP_REQ_COMPARE:
 109         case LDAP_REQ_EXTENDED:
 110         case LDAP_REQ_MODIFY:
 111         case LDAP_REQ_MODRDN:
 112                 tag++;
 113                 break;
 114
 115         case LDAP_REQ_DELETE:
 116                 tag = LDAP_RES_DELETE;
 117                 break;
 118
 119         case LDAP_REQ_ABANDON:
 120         case LDAP_REQ_UNBIND:
 121                 tag = LBER_SEQUENCE;
 122                 break;
 123
 124         case LDAP_REQ_SEARCH:
 125                 tag = LDAP_RES_SEARCH_RESULT;
 126                 break;
 127
 128         default:
 129                 tag = LBER_SEQUENCE;
 130         }
 131
 132         return tag;
 133 }
 134
 135 static long send_ldap_ber(
 136         Connection *conn,
 137         BerElement *ber )
 138 {
 139         ber_len_t bytes;
 140
 141         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 142
 143         /* write only one pdu at a time - wait til it's our turn */
 144         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 145
 146         /* lock the connection */
 147         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 148
 149         /* write the pdu */
 150         while( 1 ) {
 151                 int err;
 152                 ber_socket_t    sd;
 153
 154                 if ( connection_state_closing( conn ) ) {
 155                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 156                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 157
 158                         return 0;
 159                 }
 160
 161                 if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
 162                         break;
 163                 }
 164
 165                 err = sock_errno();
 166
 167                 /*
 168                  * we got an error.  if it's ewouldblock, we need to
 169                  * wait on the socket being writable.  otherwise, figure
 170                  * it's a hard error and return.
 171                  */
 172
 173                 Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
 174                     err, sock_errstr(err), 0 );
 175
 176                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 177                         connection_closing( conn, "connection lost on write" );
 178
 179                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 180                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 181
 182                         return( -1 );
 183                 }
 184
 185                 /* wait for socket to be write-ready */
 186                 conn->c_writewaiter = 1;
 187                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 188                 slapd_set_write( sd, 1 );
 189
 190                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 191                 conn->c_writewaiter = 0;
 192         }
 193
 194         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 195         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 196
 197         return bytes;
 198 }
 199
 200 static int
 201 send_ldap_control( BerElement *ber, LDAPControl *c )
 202 {
 203         int rc;
 204
 205         assert( c != NULL );
 206
 207         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 208
 209         if( c->ldctl_iscritical ) {
 210                 rc = ber_printf( ber, "b",
 211                         (ber_int_t) c->ldctl_iscritical ) ;
 212                 if( rc == -1 ) return rc;
 213         }
 214
 215         if( c->ldctl_value.bv_val != NULL ) {
 216                 rc = ber_printf( ber, "O", &c->ldctl_value );
 217                 if( rc == -1 ) return rc;
 218         }
 219
 220         rc = ber_printf( ber, /*{*/"N}" );
 221         if( rc == -1 ) return rc;
 222
 223         return 0;
 224 }
 225
 226 static int
 227 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 228 {
 229         int rc;
 230
 231         if( c == NULL )
 232                 return 0;
 233
 234         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 235         if( rc == -1 ) return rc;
 236
 237         for( ; *c != NULL; c++) {
 238                 rc = send_ldap_control( ber, *c );
 239                 if( rc == -1 ) return rc;
 240         }
 241
 242 #ifdef SLAP_CONTROL_X_SORTEDRESULTS
 243         /* this is a hack to avoid having to modify op->s_ctrls */
 244         if( o->o_sortedresults ) {
 245                 BerElementBuffer berbuf;
 246                 BerElement *sber = (BerElement *) &berbuf;
 247                 LDAPControl sorted;
 248                 BER_BVZERO( &sorted.ldctl_value );
 249                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 250                 sorted.ldctl_iscritical = 0;
 251
 252                 ber_init2( sber, NULL, LBER_USE_DER );
 253
 254                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 255
 256                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 257                         return -1;
 258                 }
 259
 260                 (void) ber_free_buf( ber );
 261
 262                 rc = send_ldap_control( ber, &sorted );
 263                 if( rc == -1 ) return rc;
 264         }
 265 #endif
 266
 267         rc = ber_printf( ber, /*{*/"N}" );
 268
 269         return rc;
 270 }
 271
 272 /*
 273  * slap_response_play()
 274  *
 275  * plays the callback list; rationale: a callback can
 276  *   - remove itself from the list, by setting op->o_callback = NULL;
 277  *     malloc()'ed callbacks should free themselves from inside the
 278  *     sc_response() function.
 279  *   - replace itself with another (list of) callback(s), by setting
 280  *     op->o_callback = a new (list of) callback(s); in this case, it
 281  *     is the callback's responsibility to to append existing subsequent
 282  *     callbacks to the end of the list that is passed to the sc_response()
 283  *     function.
 284  *   - modify the list of subsequent callbacks by modifying the value
 285  *     of the sc_next field from inside the sc_response() function; this
 286  *     case does not require any handling from inside slap_response_play()
 287  *
 288  * To stop execution of the playlist, the sc_response() function must return
 289  * a value different from SLAP_SC_CONTINUE.
 290  *
 291  * The same applies to slap_cleanup_play(); only, there is no means to stop
 292  * execution of the playlist, since all cleanup functions must be called.
 293  */
 294 static int
 295 slap_response_play(
 296         Operation *op,
 297         SlapReply *rs )
 298 {
 299         int rc;
 300
 301         slap_callback   *sc = op->o_callback, **scp;
 302
 303         rc = SLAP_CB_CONTINUE;
 304         for ( scp = &sc; *scp; ) {
 305                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 306
 307                 op->o_callback = *scp;
 308                 if ( op->o_callback->sc_response ) {
 309                         rc = op->o_callback->sc_response( op, rs );
 310                         if ( op->o_callback == NULL ) {
 311                                 /* the callback has been removed;
 312                                  * repair the list */
 313                                 *scp = sc_next;
 314                                 sc_nextp = scp;
 315
 316                         } else if ( op->o_callback != *scp ) {
 317                                 /* a new callback has been inserted
 318                                  * in place of the existing one; repair the list */
 319                                 *scp = op->o_callback;
 320                                 sc_nextp = scp;
 321                         }
 322                         if ( rc != SLAP_CB_CONTINUE ) break;
 323                 }
 324                 scp = sc_nextp;
 325         }
 326
 327         op->o_callback = sc;
 328         return rc;
 329 }
 330
 331 static int
 332 slap_cleanup_play(
 333         Operation *op,
 334         SlapReply *rs )
 335 {
 336         slap_callback   *sc = op->o_callback, **scp;
 337
 338         for ( scp = &sc; *scp; ) {
 339                 slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
 340
 341                 op->o_callback = *scp;
 342                 if ( op->o_callback->sc_cleanup ) {
 343                         (void)op->o_callback->sc_cleanup( op, rs );
 344                         if ( op->o_callback == NULL ) {
 345                                 /* the callback has been removed;
 346                                  * repair the list */
 347                                 *scp = sc_next;
 348                                 sc_nextp = scp;
 349
 350                         } else if ( op->o_callback != *scp ) {
 351                                 /* a new callback has been inserted
 352                                  * after the existing one; repair the list */
 353                                 /* a new callback has been inserted
 354                                  * in place of the existing one; repair the list */
 355                                 *scp = op->o_callback;
 356                                 sc_nextp = scp;
 357                         }
 358                         /* don't care about the result; do all cleanup */
 359                 }
 360                 scp = sc_nextp;
 361         }
 362
 363         op->o_callback = sc;
 364         return LDAP_SUCCESS;
 365 }
 366
 367 static int
 368 send_ldap_response(
 369         Operation *op,
 370         SlapReply *rs )
 371 {
 372         BerElementBuffer berbuf;
 373         BerElement      *ber = (BerElement *) &berbuf;
 374         int             rc = LDAP_SUCCESS;
 375         long    bytes;
 376
 377         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon ) {
 378                 rc = SLAPD_ABANDON;
 379                 goto clean2;
 380         }
 381
 382         if ( op->o_callback ) {
 383                 rc = slap_response_play( op, rs );
 384                 if ( rc != SLAP_CB_CONTINUE ) {
 385                         goto clean2;
 386                 }
 387         }
 388
 389 #ifdef LDAP_CONNECTIONLESS
 390         if (op->o_conn && op->o_conn->c_is_udp)
 391                 ber = op->o_res_ber;
 392         else
 393 #endif
 394         {
 395                 ber_init_w_nullc( ber, LBER_USE_DER );
 396                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 397         }
 398
 399         Debug( LDAP_DEBUG_TRACE,
 400                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 401                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 402
 403         if( rs->sr_ref ) {
 404                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 405                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 406                         NULL, NULL );
 407         }
 408
 409 #ifdef LDAP_CONNECTIONLESS
 410         if (op->o_conn && op->o_conn->c_is_udp &&
 411                 op->o_protocol == LDAP_VERSION2 )
 412         {
 413                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 414                         rs->sr_tag, rs->sr_err,
 415                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 416                 rs->sr_text == NULL ? "" : rs->sr_text );
 417         } else
 418 #endif
 419         if ( rs->sr_type == REP_INTERMEDIATE ) {
 420             rc = ber_printf( ber, "{it{" /*"}}"*/,
 421                         rs->sr_msgid, rs->sr_tag );
 422
 423         } else {
 424             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 425                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 426                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 427                 rs->sr_text == NULL ? "" : rs->sr_text );
 428         }
 429
 430         if( rc != -1 ) {
 431                 if ( rs->sr_ref != NULL ) {
 432                         assert( rs->sr_err == LDAP_REFERRAL );
 433                         rc = ber_printf( ber, "t{W}",
 434                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 435                 } else {
 436                         assert( rs->sr_err != LDAP_REFERRAL );
 437                 }
 438         }
 439
 440         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 441                 rc = ber_printf( ber, "tO",
 442                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 443         }
 444
 445         if( rc != -1 &&
 446                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 447         {
 448                 if ( rs->sr_rspoid != NULL ) {
 449                         rc = ber_printf( ber, "ts",
 450                                 rs->sr_type == REP_EXTENDED
 451                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 452                                 rs->sr_rspoid );
 453                 }
 454                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 455                         rc = ber_printf( ber, "tO",
 456                                 rs->sr_type == REP_EXTENDED
 457                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 458                                 rs->sr_rspdata );
 459                 }
 460         }
 461
 462         if( rc != -1 ) {
 463                 rc = ber_printf( ber, /*"{"*/ "N}" );
 464         }
 465
 466         if( rc != -1 ) {
 467                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 468         }
 469
 470         if( rc != -1 ) {
 471                 rc = ber_printf( ber, /*"{"*/ "N}" );
 472         }
 473
 474 #ifdef LDAP_CONNECTIONLESS
 475         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 476                 && rc != -1 )
 477         {
 478                 rc = ber_printf( ber, /*"{"*/ "N}" );
 479         }
 480 #endif
 481
 482         if ( rc == -1 ) {
 483                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 484
 485 #ifdef LDAP_CONNECTIONLESS
 486                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 487 #endif
 488                 {
 489                         ber_free_buf( ber );
 490                 }
 491                 goto cleanup;
 492         }
 493
 494         /* send BER */
 495         bytes = send_ldap_ber( op->o_conn, ber );
 496 #ifdef LDAP_CONNECTIONLESS
 497         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 498 #endif
 499         {
 500                 ber_free_buf( ber );
 501         }
 502
 503         if ( bytes < 0 ) {
 504                 Debug( LDAP_DEBUG_ANY,
 505                         "send_ldap_response: ber write failed\n",
 506                         0, 0, 0 );
 507
 508                 goto cleanup;
 509         }
 510
 511         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 512         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 513         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 514         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 515
 516 cleanup:;
 517         /* Tell caller that we did this for real, as opposed to being
 518          * overridden by a callback
 519          */
 520         rc = SLAP_CB_CONTINUE;
 521
 522 clean2:;
 523         if ( op->o_callback ) {
 524                 (void)slap_cleanup_play( op, rs );
 525         }
 526
 527         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 528                 free( (char *)rs->sr_matched );
 529                 rs->sr_matched = NULL;
 530         }
 531
 532         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 533                 ber_bvarray_free( rs->sr_ref );
 534                 rs->sr_ref = NULL;
 535         }
 536
 537         return rc;
 538 }
 539
 540
 541 void
 542 send_ldap_disconnect( Operation *op, SlapReply *rs )
 543 {
 544 #define LDAP_UNSOLICITED_ERROR(e) \
 545         (  (e) == LDAP_PROTOCOL_ERROR \
 546         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 547         || (e) == LDAP_UNAVAILABLE )
 548
 549         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 550
 551         rs->sr_type = REP_EXTENDED;
 552
 553         Debug( LDAP_DEBUG_TRACE,
 554                 "send_ldap_disconnect %d:%s\n",
 555                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 556
 557         if ( op->o_protocol < LDAP_VERSION3 ) {
 558                 rs->sr_rspoid = NULL;
 559                 rs->sr_tag = slap_req2res( op->o_tag );
 560                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 561
 562         } else {
 563                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 564                 rs->sr_tag = LDAP_RES_EXTENDED;
 565                 rs->sr_msgid = LDAP_RES_UNSOLICITED;
 566         }
 567
 568         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 569                 Statslog( LDAP_DEBUG_STATS,
 570                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 571                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 572                         rs->sr_text ? rs->sr_text : "", 0 );
 573         }
 574 }
 575
 576 void
 577 slap_send_ldap_result( Operation *op, SlapReply *rs )
 578 {
 579         char *tmp = NULL;
 580         const char *otext = rs->sr_text;
 581         BerVarray oref = rs->sr_ref;
 582
 583         rs->sr_type = REP_RESULT;
 584
 585         /* Propagate Abandons so that cleanup callbacks can be processed */
 586         if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
 587                 goto abandon;
 588
 589         assert( !LDAP_API_ERROR( rs->sr_err ) );
 590
 591         Debug( LDAP_DEBUG_TRACE,
 592                 "send_ldap_result: %s p=%d\n",
 593                 op->o_log_prefix, op->o_protocol, 0 );
 594
 595         Debug( LDAP_DEBUG_ARGS,
 596                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 597                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 598                 rs->sr_text ? rs->sr_text : "" );
 599
 600
 601         if( rs->sr_ref ) {
 602                 Debug( LDAP_DEBUG_ARGS,
 603                         "send_ldap_result: referral=\"%s\"\n",
 604                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 605                         NULL, NULL );
 606         }
 607
 608         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 609
 610         if ( rs->sr_err == LDAP_REFERRAL ) {
 611                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 612
 613                 if( rs->sr_ref == NULL ) {
 614                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 615                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 616                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 617                 }
 618         }
 619
 620         if ( op->o_protocol < LDAP_VERSION3 ) {
 621                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 622                 rs->sr_text = tmp;
 623                 rs->sr_ref = NULL;
 624         }
 625
 626         rs->sr_tag = slap_req2res( op->o_tag );
 627         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 628
 629 abandon:
 630         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 631                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 632                         char nbuf[64];
 633                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 634                                 rs->sr_err, rs->sr_nentries );
 635
 636                         Statslog( LDAP_DEBUG_STATS,
 637                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 638                                 op->o_log_prefix, rs->sr_tag, nbuf,
 639                                 rs->sr_text ? rs->sr_text : "", 0 );
 640                 } else {
 641                         Statslog( LDAP_DEBUG_STATS,
 642                                 "%s RESULT tag=%lu err=%d text=%s\n",
 643                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 644                                 rs->sr_text ? rs->sr_text : "", 0 );
 645                 }
 646         }
 647
 648         if( tmp != NULL ) ch_free(tmp);
 649         rs->sr_text = otext;
 650         rs->sr_ref = oref;
 651 }
 652
 653 void
 654 send_ldap_sasl( Operation *op, SlapReply *rs )
 655 {
 656         rs->sr_type = REP_SASL;
 657         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 658                 rs->sr_err,
 659                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 660
 661         rs->sr_tag = slap_req2res( op->o_tag );
 662         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 663
 664         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 665                 Statslog( LDAP_DEBUG_STATS,
 666                         "%s RESULT tag=%lu err=%d text=%s\n",
 667                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 668                         rs->sr_text ? rs->sr_text : "", 0 );
 669         }
 670 }
 671
 672 void
 673 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 674 {
 675         rs->sr_type = REP_EXTENDED;
 676
 677         Debug( LDAP_DEBUG_TRACE,
 678                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 679                 rs->sr_err,
 680                 rs->sr_rspoid ? rs->sr_rspoid : "",
 681                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 682
 683         rs->sr_tag = slap_req2res( op->o_tag );
 684         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 685
 686         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 687                 Statslog( LDAP_DEBUG_STATS,
 688                         "%s RESULT oid=%s err=%d text=%s\n",
 689                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 690                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 691         }
 692 }
 693
 694 void
 695 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 696 {
 697         rs->sr_type = REP_INTERMEDIATE;
 698         Debug( LDAP_DEBUG_TRACE,
 699                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 700                 rs->sr_err,
 701                 rs->sr_rspoid ? rs->sr_rspoid : "",
 702                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 703         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 704         rs->sr_msgid = op->o_msgid;
 705         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 706                 Statslog( LDAP_DEBUG_STATS2,
 707                         "%s INTERM oid=%s\n",
 708                         op->o_log_prefix,
 709                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 710         }
 711 }
 712
 713 /*
 714  * returns:
 715  *
 716  * LDAP_SUCCESS                 entry sent
 717  * LDAP_OTHER                   entry not sent (other)
 718  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 719  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 720  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 721  */
 722
 723 int
 724 slap_send_search_entry( Operation *op, SlapReply *rs )
 725 {
 726         BerElementBuffer berbuf;
 727         BerElement      *ber = (BerElement *) &berbuf;
 728         Attribute       *a;
 729         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 730         char            *edn;
 731         int             userattrs;
 732         AccessControlState acl_state = ACL_STATE_INIT;
 733         int                      attrsonly;
 734         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 735
 736         /* a_flags: array of flags telling if the i-th element will be
 737          *          returned or filtered out
 738          * e_flags: array of a_flags
 739          */
 740         char **e_flags = NULL;
 741
 742         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 743                 return LDAP_SIZELIMIT_EXCEEDED;
 744         }
 745
 746         /* Every 64 entries, check for thread pool pause */
 747         if (( rs->sr_nentries & 0x3f == 0x3f ) &&
 748                 ldap_pvt_thread_pool_query( &connection_pool,
 749                         LDAP_PVT_THREAD_POOL_PARAM_PAUSING, &i ) == 0 && i ) {
 750                 return LDAP_BUSY;
 751         }
 752
 753         rs->sr_type = REP_SEARCH;
 754
 755         /* eventually will loop through generated operational attribute types
 756          * currently implemented types include:
 757          *      entryDN, subschemaSubentry, and hasSubordinates */
 758         /* NOTE: moved before overlays callback circling because
 759          * they may modify entry and other stuff in rs */
 760         /* check for special all operational attributes ("+") type */
 761         /* FIXME: maybe we could set this flag at the operation level;
 762          * however, in principle the caller of send_search_entry() may
 763          * change the attribute list at each call */
 764         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 765
 766         rc = backend_operational( op, rs );
 767         if ( rc ) {
 768                 goto error_return;
 769         }
 770
 771         if ( op->o_callback ) {
 772                 rc = slap_response_play( op, rs );
 773                 if ( rc != SLAP_CB_CONTINUE ) {
 774                         goto error_return;
 775                 }
 776         }
 777
 778         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 779                 op->o_connid, rs->sr_entry->e_name.bv_val,
 780                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 781
 782         attrsonly = op->ors_attrsonly;
 783
 784         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 785                 Debug( LDAP_DEBUG_ACL,
 786                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 787                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 788
 789                 rc = LDAP_INSUFFICIENT_ACCESS;
 790                 goto error_return;
 791         }
 792
 793         edn = rs->sr_entry->e_nname.bv_val;
 794
 795         if ( op->o_res_ber ) {
 796                 /* read back control or LDAP_CONNECTIONLESS */
 797             ber = op->o_res_ber;
 798         } else {
 799                 struct berval   bv;
 800
 801                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 802                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 803
 804                 ber_init2( ber, &bv, LBER_USE_DER );
 805                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 806         }
 807
 808 #ifdef LDAP_CONNECTIONLESS
 809         if ( op->o_conn && op->o_conn->c_is_udp ) {
 810                 /* CONNECTIONLESS */
 811                 if ( op->o_protocol == LDAP_VERSION2 ) {
 812                 rc = ber_printf(ber, "t{O{" /*}}*/,
 813                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 814                 } else {
 815                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 816                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 817                 }
 818         } else
 819 #endif
 820         if ( op->o_res_ber ) {
 821                 /* read back control */
 822             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 823         } else {
 824             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 825                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 826         }
 827
 828         if ( rc == -1 ) {
 829                 Debug( LDAP_DEBUG_ANY,
 830                         "send_search_entry: conn %lu  ber_printf failed\n",
 831                         op->o_connid, 0, 0 );
 832
 833                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 834                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 835                 rc = rs->sr_err;
 836                 goto error_return;
 837         }
 838
 839         /* check for special all user attributes ("*") type */
 840         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 841
 842         /* create an array of arrays of flags. Each flag corresponds
 843          * to particular value of attribute and equals 1 if value matches
 844          * to ValuesReturnFilter or 0 if not
 845          */
 846         if ( op->o_vrFilter != NULL ) {
 847                 int     k = 0;
 848                 size_t  size;
 849
 850                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 851                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 852                 }
 853
 854                 size = i * sizeof(char *) + k;
 855                 if ( size > 0 ) {
 856                         char    *a_flags;
 857                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 858                         if( e_flags == NULL ) {
 859                         Debug( LDAP_DEBUG_ANY,
 860                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 861                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 862                                 ber_free( ber, 1 );
 863
 864                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 865                                 goto error_return;
 866                         }
 867                         a_flags = (char *)(e_flags + i);
 868                         memset( a_flags, 0, k );
 869                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 870                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 871                                 e_flags[i] = a_flags;
 872                                 a_flags += j;
 873                         }
 874
 875                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 876                         if ( rc == -1 ) {
 877                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 878                                         "conn %lu matched values filtering failed\n",
 879                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 880                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 881                                 send_ldap_error( op, rs, LDAP_OTHER,
 882                                         "matched values filtering error" );
 883                                 rc = rs->sr_err;
 884                                 goto error_return;
 885                         }
 886                 }
 887         }
 888
 889         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 890                 AttributeDescription *desc = a->a_desc;
 891                 int finish = 0;
 892
 893                 if ( rs->sr_attrs == NULL ) {
 894                         /* all user attrs request, skip operational attributes */
 895                         if( is_at_operational( desc->ad_type ) ) {
 896                                 continue;
 897                         }
 898
 899                 } else {
 900                         /* specific attrs requested */
 901                         if ( is_at_operational( desc->ad_type ) ) {
 902                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 903                                         !ad_inlist( desc, rs->sr_attrs ) )
 904                                 {
 905                                         continue;
 906                                 }
 907
 908                         } else {
 909                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 910                                         continue;
 911                                 }
 912                         }
 913                 }
 914
 915                 if ( attrsonly ) {
 916                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 917                                 ACL_READ, &acl_state ) )
 918                         {
 919                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 920                                         "conn %lu access to attribute %s not allowed\n",
 921                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 922                                 continue;
 923                         }
 924
 925                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 926                                 Debug( LDAP_DEBUG_ANY,
 927                                         "send_search_entry: conn %lu  ber_printf failed\n",
 928                                         op->o_connid, 0, 0 );
 929
 930                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 931                                 send_ldap_error( op, rs, LDAP_OTHER,
 932                                         "encoding description error");
 933                                 rc = rs->sr_err;
 934                                 goto error_return;
 935                         }
 936                         finish = 1;
 937
 938                 } else {
 939                         int first = 1;
 940                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 941                                 if ( ! access_allowed( op, rs->sr_entry,
 942                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 943                                 {
 944                                         Debug( LDAP_DEBUG_ACL,
 945                                                 "send_search_entry: conn %lu "
 946                                                 "access to attribute %s, value #%d not allowed\n",
 947                                                 op->o_connid, desc->ad_cname.bv_val, i );
 948
 949                                         continue;
 950                                 }
 951
 952                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 953                                         continue;
 954                                 }
 955
 956                                 if ( first ) {
 957                                         first = 0;
 958                                         finish = 1;
 959                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 960                                                 Debug( LDAP_DEBUG_ANY,
 961                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 962                                                         op->o_connid, 0, 0 );
 963
 964                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 965                                                 send_ldap_error( op, rs, LDAP_OTHER,
 966                                                         "encoding description error");
 967                                                 rc = rs->sr_err;
 968                                                 goto error_return;
 969                                         }
 970                                 }
 971                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 972                                         Debug( LDAP_DEBUG_ANY,
 973                                                 "send_search_entry: conn %lu  "
 974                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 975
 976                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 977                                         send_ldap_error( op, rs, LDAP_OTHER,
 978                                                 "encoding values error" );
 979                                         rc = rs->sr_err;
 980                                         goto error_return;
 981                                 }
 982                         }
 983                 }
 984
 985                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 986                         Debug( LDAP_DEBUG_ANY,
 987                                 "send_search_entry: conn %lu ber_printf failed\n",
 988                                 op->o_connid, 0, 0 );
 989
 990                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 991                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 992                         rc = rs->sr_err;
 993                         goto error_return;
 994                 }
 995         }
 996
 997         /* NOTE: moved before overlays callback circling because
 998          * they may modify entry and other stuff in rs */
 999         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
1000                 int     k = 0;
1001                 size_t  size;
1002
1003                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1004                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
1005                 }
1006
1007                 size = i * sizeof(char *) + k;
1008                 if ( size > 0 ) {
1009                         char    *a_flags, **tmp;
1010
1011                         /*
1012                          * Reuse previous memory - we likely need less space
1013                          * for operational attributes
1014                          */
1015                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
1016                                 op->o_tmpmemctx );
1017                         if ( tmp == NULL ) {
1018                                 Debug( LDAP_DEBUG_ANY,
1019                                         "send_search_entry: conn %lu "
1020                                         "not enough memory "
1021                                         "for matched values filtering\n",
1022                                         op->o_connid, 0, 0 );
1023                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1024                                 send_ldap_error( op, rs, LDAP_OTHER,
1025                                         "not enough memory for matched values filtering" );
1026                                 goto error_return;
1027                         }
1028                         e_flags = tmp;
1029                         a_flags = (char *)(e_flags + i);
1030                         memset( a_flags, 0, k );
1031                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
1032                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
1033                                 e_flags[i] = a_flags;
1034                                 a_flags += j;
1035                         }
1036                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
1037
1038                         if ( rc == -1 ) {
1039                                 Debug( LDAP_DEBUG_ANY,
1040                                         "send_search_entry: conn %lu "
1041                                         "matched values filtering failed\n",
1042                                         op->o_connid ? op->o_connid : 0, 0, 0);
1043                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1044                                 send_ldap_error( op, rs, LDAP_OTHER,
1045                                         "matched values filtering error" );
1046                                 rc = rs->sr_err;
1047                                 goto error_return;
1048                         }
1049                 }
1050         }
1051
1052         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1053                 AttributeDescription *desc = a->a_desc;
1054
1055                 if ( rs->sr_attrs == NULL ) {
1056                         /* all user attrs request, skip operational attributes */
1057                         if( is_at_operational( desc->ad_type ) ) {
1058                                 continue;
1059                         }
1060
1061                 } else {
1062                         /* specific attrs requested */
1063                         if( is_at_operational( desc->ad_type ) ) {
1064                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1065                                         !ad_inlist( desc, rs->sr_attrs ) )
1066                                 {
1067                                         continue;
1068                                 }
1069                         } else {
1070                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1071                                         continue;
1072                                 }
1073                         }
1074                 }
1075
1076                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1077                         ACL_READ, &acl_state ) )
1078                 {
1079                         Debug( LDAP_DEBUG_ACL,
1080                                 "send_search_entry: conn %lu "
1081                                 "access to attribute %s not allowed\n",
1082                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1083
1084                         continue;
1085                 }
1086
1087                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1088                 if ( rc == -1 ) {
1089                         Debug( LDAP_DEBUG_ANY,
1090                                 "send_search_entry: conn %lu  "
1091                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1092
1093                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1094                         send_ldap_error( op, rs, LDAP_OTHER,
1095                                 "encoding description error" );
1096                         rc = rs->sr_err;
1097                         goto error_return;
1098                 }
1099
1100                 if ( ! attrsonly ) {
1101                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1102                                 if ( ! access_allowed( op, rs->sr_entry,
1103                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1104                                 {
1105                                         Debug( LDAP_DEBUG_ACL,
1106                                                 "send_search_entry: conn %lu "
1107                                                 "access to %s, value %d not allowed\n",
1108                                                 op->o_connid, desc->ad_cname.bv_val, i );
1109
1110                                         continue;
1111                                 }
1112
1113                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1114                                         continue;
1115                                 }
1116
1117                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1118                                         Debug( LDAP_DEBUG_ANY,
1119                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1120                                                 op->o_connid, 0, 0 );
1121
1122                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1123                                         send_ldap_error( op, rs, LDAP_OTHER,
1124                                                 "encoding values error" );
1125                                         rc = rs->sr_err;
1126                                         goto error_return;
1127                                 }
1128                         }
1129                 }
1130
1131                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1132                         Debug( LDAP_DEBUG_ANY,
1133                                 "send_search_entry: conn %lu  ber_printf failed\n",
1134                                 op->o_connid, 0, 0 );
1135
1136                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1137                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1138                         rc = rs->sr_err;
1139                         goto error_return;
1140                 }
1141         }
1142
1143         /* free e_flags */
1144         if ( e_flags ) {
1145                 slap_sl_free( e_flags, op->o_tmpmemctx );
1146                 e_flags = NULL;
1147         }
1148
1149         rc = ber_printf( ber, /*{{*/ "}N}" );
1150
1151         if( rc != -1 ) {
1152                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1153         }
1154
1155         if( rc != -1 ) {
1156 #ifdef LDAP_CONNECTIONLESS
1157                 if( op->o_conn && op->o_conn->c_is_udp ) {
1158                         if ( op->o_protocol != LDAP_VERSION2 ) {
1159                                 rc = ber_printf( ber, /*{*/ "N}" );
1160                         }
1161                 } else
1162 #endif
1163                 if ( op->o_res_ber == NULL ) {
1164                         rc = ber_printf( ber, /*{*/ "N}" );
1165                 }
1166         }
1167
1168         if ( rc == -1 ) {
1169                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1170
1171                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1172                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1173                 rc = rs->sr_err;
1174                 goto error_return;
1175         }
1176
1177         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1178                 be_entry_release_rw( op, rs->sr_entry, 0 );
1179                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1180                 rs->sr_entry = NULL;
1181         }
1182
1183         if ( op->o_res_ber == NULL ) {
1184                 bytes = send_ldap_ber( op->o_conn, ber );
1185                 ber_free_buf( ber );
1186
1187                 if ( bytes < 0 ) {
1188                         Debug( LDAP_DEBUG_ANY,
1189                                 "send_search_entry: conn %lu  ber write failed.\n",
1190                                 op->o_connid, 0, 0 );
1191
1192                         rc = LDAP_UNAVAILABLE;
1193                         goto error_return;
1194                 }
1195                 rs->sr_nentries++;
1196
1197                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1198                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1199                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1200                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1201                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1202         }
1203
1204         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1205             op->o_log_prefix, edn, 0, 0, 0 );
1206
1207         Debug( LDAP_DEBUG_TRACE,
1208                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1209
1210         rc = LDAP_SUCCESS;
1211
1212 error_return:;
1213         if ( op->o_callback ) {
1214                 (void)slap_cleanup_play( op, rs );
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                 rc = slap_response_play( op, rs );
1259                 if ( rc != SLAP_CB_CONTINUE ) {
1260                         goto rel;
1261                 }
1262         }
1263
1264         Debug( LDAP_DEBUG_TRACE,
1265                 "=> send_search_reference: dn=\"%s\"\n",
1266                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1267
1268         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1269                 ad_entry, NULL, ACL_READ, NULL ) )
1270         {
1271                 Debug( LDAP_DEBUG_ACL,
1272                         "send_search_reference: access to entry not allowed\n",
1273                     0, 0, 0 );
1274                 rc = 1;
1275                 goto rel;
1276         }
1277
1278         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1279                 ad_ref, NULL, ACL_READ, NULL ) )
1280         {
1281                 Debug( LDAP_DEBUG_ACL,
1282                         "send_search_reference: access "
1283                         "to reference not allowed\n",
1284                     0, 0, 0 );
1285                 rc = 1;
1286                 goto rel;
1287         }
1288
1289         if( op->o_domain_scope ) {
1290                 Debug( LDAP_DEBUG_ANY,
1291                         "send_search_reference: domainScope control in (%s)\n",
1292                         rs->sr_entry->e_dn, 0, 0 );
1293                 rc = 0;
1294                 goto rel;
1295         }
1296
1297         if( rs->sr_ref == NULL ) {
1298                 Debug( LDAP_DEBUG_ANY,
1299                         "send_search_reference: null ref in (%s)\n",
1300                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1301                 rc = 1;
1302                 goto rel;
1303         }
1304
1305         if( op->o_protocol < LDAP_VERSION3 ) {
1306                 rc = 0;
1307                 /* save the references for the result */
1308                 if( rs->sr_ref[0].bv_val != NULL ) {
1309                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1310                                 rc = LDAP_OTHER;
1311                 }
1312                 goto rel;
1313         }
1314
1315 #ifdef LDAP_CONNECTIONLESS
1316         if( op->o_conn && op->o_conn->c_is_udp ) {
1317                 ber = op->o_res_ber;
1318         } else
1319 #endif
1320         {
1321                 ber_init_w_nullc( ber, LBER_USE_DER );
1322                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1323         }
1324
1325         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1326                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1327
1328         if( rc != -1 ) {
1329                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1330         }
1331
1332         if( rc != -1 ) {
1333                 rc = ber_printf( ber, /*"{"*/ "N}" );
1334         }
1335
1336         if ( rc == -1 ) {
1337                 Debug( LDAP_DEBUG_ANY,
1338                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1339
1340 #ifdef LDAP_CONNECTIONLESS
1341                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1342 #endif
1343                 ber_free_buf( ber );
1344                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1345                 goto rel;
1346         }
1347
1348         rc = 0;
1349         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1350                 be_entry_release_rw( op, rs->sr_entry, 0 );
1351                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1352                 rs->sr_entry = NULL;
1353         }
1354
1355 #ifdef LDAP_CONNECTIONLESS
1356         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1357 #endif
1358         bytes = send_ldap_ber( op->o_conn, ber );
1359         ber_free_buf( ber );
1360
1361         if ( bytes < 0 ) {
1362                 rc = LDAP_UNAVAILABLE;
1363         } else {
1364                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1365                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1366                 ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1367                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1368                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1369         }
1370 #ifdef LDAP_CONNECTIONLESS
1371         }
1372 #endif
1373         if ( rs->sr_ref != NULL ) {
1374                 int     r;
1375
1376                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1377                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1378                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1379                                 0, 0 );
1380                 }
1381
1382         } else {
1383                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1384                         op->o_log_prefix, 0, 0, 0, 0 );
1385         }
1386
1387         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1388
1389 rel:
1390         if ( op->o_callback ) {
1391                 (void)slap_cleanup_play( op, rs );
1392         }
1393
1394         return rc;
1395 }
1396
1397 int
1398 str2result(
1399     char        *s,
1400     int         *code,
1401     char        **matched,
1402     char        **info )
1403 {
1404         int     rc;
1405         char    *c;
1406
1407         *code = LDAP_SUCCESS;
1408         *matched = NULL;
1409         *info = NULL;
1410
1411         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1412                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1413                     s, 0, 0 );
1414
1415                 return( -1 );
1416         }
1417
1418         rc = 0;
1419         while ( (s = strchr( s, '\n' )) != NULL ) {
1420                 *s++ = '\0';
1421                 if ( *s == '\0' ) {
1422                         break;
1423                 }
1424                 if ( (c = strchr( s, ':' )) != NULL ) {
1425                         c++;
1426                 }
1427
1428                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1429                         char    *next = NULL;
1430                         long    retcode;
1431
1432                         if ( c == NULL ) {
1433                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
1434                                     s, 0, 0 );
1435                                 rc = -1;
1436                                 continue;
1437                         }
1438
1439                         while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
1440                         if ( c[ 0 ] == '\0' ) {
1441                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
1442                                     s, 0, 0 );
1443                                 rc = -1;
1444                                 continue;
1445                         }
1446
1447                         retcode = strtol( c, &next, 10 );
1448                         if ( next == NULL || next == c ) {
1449                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
1450                                     s, 0, 0 );
1451                                 rc = -1;
1452                                 continue;
1453                         }
1454
1455                         while ( isspace( (unsigned char) next[ 0 ] ) ) next++;
1456                         if ( next[ 0 ] != '\0' ) {
1457                                 Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
1458                                     s, 0, 0 );
1459                                 rc = -1;
1460                                 continue;
1461                         }
1462
1463                         /* FIXME: what if it's larger that max int? */
1464                         *code = (int)retcode;
1465
1466                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1467                         if ( c != NULL ) {
1468                                 *matched = c;
1469                         }
1470                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1471                         if ( c != NULL ) {
1472                                 *info = c;
1473                         }
1474                 } else {
1475                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1476                             s, 0, 0 );
1477
1478                         rc = -1;
1479                 }
1480         }
1481
1482         return( rc );
1483 }
1484
1485 int slap_read_controls(
1486         Operation *op,
1487         SlapReply *rs,
1488         Entry *e,
1489         const struct berval *oid,
1490         LDAPControl **ctrl )
1491 {
1492         int rc;
1493         struct berval bv;
1494         BerElementBuffer berbuf;
1495         BerElement *ber = (BerElement *) &berbuf;
1496         LDAPControl c;
1497         Operation myop;
1498
1499         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1500                 oid->bv_val, e->e_dn, 0 );
1501
1502         rs->sr_entry = e;
1503         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1504                 op->o_preread_attrs : op->o_postread_attrs;
1505
1506         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1507         bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
1508
1509         ber_init2( ber, &bv, LBER_USE_DER );
1510         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1511
1512         /* create new operation */
1513         myop = *op;
1514         /* FIXME: o_bd needed for ACL */
1515         myop.o_bd = op->o_bd;
1516         myop.o_res_ber = ber;
1517         myop.o_callback = NULL;
1518         myop.ors_slimit = 1;
1519
1520         rc = slap_send_search_entry( &myop, rs );
1521         if( rc ) return rc;
1522
1523         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1524
1525         if( rc == LBER_ERROR ) return LDAP_OTHER;
1526
1527         c.ldctl_oid = oid->bv_val;
1528         c.ldctl_iscritical = 0;
1529
1530         if ( *ctrl == NULL ) {
1531                 /* first try */
1532                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1533         } else {
1534                 /* retry: free previous try */
1535                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1536         }
1537
1538         **ctrl = c;
1539         return LDAP_SUCCESS;
1540 }
1541
1542 /* Map API errors to protocol errors... */
1543 int
1544 slap_map_api2result( SlapReply *rs )
1545 {
1546         switch(rs->sr_err) {
1547         case LDAP_SERVER_DOWN:
1548                 return LDAP_UNAVAILABLE;
1549         case LDAP_LOCAL_ERROR:
1550                 return LDAP_OTHER;
1551         case LDAP_ENCODING_ERROR:
1552         case LDAP_DECODING_ERROR:
1553                 return LDAP_PROTOCOL_ERROR;
1554         case LDAP_TIMEOUT:
1555                 return LDAP_UNAVAILABLE;
1556         case LDAP_AUTH_UNKNOWN:
1557                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1558         case LDAP_FILTER_ERROR:
1559                 rs->sr_text = "Filter error";
1560                 return LDAP_OTHER;
1561         case LDAP_USER_CANCELLED:
1562                 rs->sr_text = "User cancelled";
1563                 return LDAP_OTHER;
1564         case LDAP_PARAM_ERROR:
1565                 return LDAP_PROTOCOL_ERROR;
1566         case LDAP_NO_MEMORY:
1567                 return LDAP_OTHER;
1568         case LDAP_CONNECT_ERROR:
1569                 return LDAP_UNAVAILABLE;
1570         case LDAP_NOT_SUPPORTED:
1571                 return LDAP_UNWILLING_TO_PERFORM;
1572         case LDAP_CONTROL_NOT_FOUND:
1573                 return LDAP_PROTOCOL_ERROR;
1574         case LDAP_NO_RESULTS_RETURNED:
1575                 return LDAP_NO_SUCH_OBJECT;
1576         case LDAP_MORE_RESULTS_TO_RETURN:
1577                 rs->sr_text = "More results to return";
1578                 return LDAP_OTHER;
1579         case LDAP_CLIENT_LOOP:
1580         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1581                 return LDAP_LOOP_DETECT;
1582         default:
1583                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1584                 return rs->sr_err;
1585         }
1586 }
1587
1588
1589 slap_mask_t
1590 slap_attr_flags( AttributeName *an )
1591 {
1592         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1593
1594         if ( an == NULL ) {
1595                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1596
1597         } else {
1598                 flags |= an_find( an, &AllOper )
1599                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1600                 flags |= an_find( an, &AllUser )
1601                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1602         }
1603
1604         return flags;
1605 }
1606