git.sur5r.net Git - openldap/blob - servers/slapd/result.c

   1 /* result.c - routines to send ldap results, errors, and referrals */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2005 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/errno.h>
  33 #include <ac/string.h>
  34 #include <ac/ctype.h>
  35 #include <ac/time.h>
  36 #include <ac/unistd.h>
  37
  38 #include "slap.h"
  39 #include "lutil.h"
  40
  41 const struct berval slap_dummy_bv = BER_BVNULL;
  42
  43 int slap_null_cb( Operation *op, SlapReply *rs )
  44 {
  45         return 0;
  46 }
  47
  48 int slap_freeself_cb( Operation *op, SlapReply *rs )
  49 {
  50         assert( op->o_callback != NULL );
  51
  52         op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
  53         op->o_callback = NULL;
  54
  55         return SLAP_CB_CONTINUE;
  56 }
  57
  58 int slap_replog_cb( Operation *op, SlapReply *rs )
  59 {
  60         if ( rs->sr_err == LDAP_SUCCESS ) {
  61                 replog( op );
  62         }
  63         return SLAP_CB_CONTINUE;
  64 }
  65
  66 static char *v2ref( BerVarray ref, const char *text )
  67 {
  68         size_t len = 0, i = 0;
  69         char *v2;
  70
  71         if(ref == NULL) {
  72                 if (text) {
  73                         return ch_strdup(text);
  74                 } else {
  75                         return NULL;
  76                 }
  77         }
  78
  79         if ( text != NULL ) {
  80                 len = strlen( text );
  81                 if (text[len-1] != '\n') {
  82                     i = 1;
  83                 }
  84         }
  85
  86         v2 = SLAP_MALLOC( len+i+sizeof("Referral:") );
  87         if( v2 == NULL ) {
  88                 Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
  89                 return NULL;
  90         }
  91
  92         if( text != NULL ) {
  93                 strcpy(v2, text);
  94                 if( i ) {
  95                         v2[len++] = '\n';
  96                 }
  97         }
  98         strcpy( v2+len, "Referral:" );
  99         len += sizeof("Referral:");
 100
 101         for( i=0; ref[i].bv_val != NULL; i++ ) {
 102                 v2 = SLAP_REALLOC( v2, len + ref[i].bv_len + 1 );
 103                 if( v2 == NULL ) {
 104                         Debug( LDAP_DEBUG_ANY, "v2ref: SLAP_MALLOC failed", 0, 0, 0 );
 105                         return NULL;
 106                 }
 107                 v2[len-1] = '\n';
 108                 AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
 109                 len += ref[i].bv_len;
 110                 if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
 111                         ++len;
 112                 }
 113         }
 114
 115         v2[len-1] = '\0';
 116         return v2;
 117 }
 118
 119 ber_tag_t
 120 slap_req2res( ber_tag_t tag )
 121 {
 122         switch( tag ) {
 123         case LDAP_REQ_ADD:
 124         case LDAP_REQ_BIND:
 125         case LDAP_REQ_COMPARE:
 126         case LDAP_REQ_EXTENDED:
 127         case LDAP_REQ_MODIFY:
 128         case LDAP_REQ_MODRDN:
 129                 tag++;
 130                 break;
 131
 132         case LDAP_REQ_DELETE:
 133                 tag = LDAP_RES_DELETE;
 134                 break;
 135
 136         case LDAP_REQ_ABANDON:
 137         case LDAP_REQ_UNBIND:
 138                 tag = LBER_SEQUENCE;
 139                 break;
 140
 141         case LDAP_REQ_SEARCH:
 142                 tag = LDAP_RES_SEARCH_RESULT;
 143                 break;
 144
 145         default:
 146                 tag = LBER_SEQUENCE;
 147         }
 148
 149         return tag;
 150 }
 151
 152 static long send_ldap_ber(
 153         Connection *conn,
 154         BerElement *ber )
 155 {
 156         ber_len_t bytes;
 157
 158         ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
 159
 160         /* write only one pdu at a time - wait til it's our turn */
 161         ldap_pvt_thread_mutex_lock( &conn->c_write_mutex );
 162
 163         /* lock the connection */
 164         ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 165
 166         /* write the pdu */
 167         while( 1 ) {
 168                 int err;
 169                 ber_socket_t    sd;
 170
 171                 if ( connection_state_closing( conn ) ) {
 172                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 173                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 174
 175                         return 0;
 176                 }
 177
 178                 if ( ber_flush( conn->c_sb, ber, 0 ) == 0 ) {
 179                         break;
 180                 }
 181
 182                 err = errno;
 183
 184                 /*
 185                  * we got an error.  if it's ewouldblock, we need to
 186                  * wait on the socket being writable.  otherwise, figure
 187                  * it's a hard error and return.
 188                  */
 189
 190                 Debug( LDAP_DEBUG_CONNS, "ber_flush failed errno=%d reason=\"%s\"\n",
 191                     err, sock_errstr(err), 0 );
 192
 193                 if ( err != EWOULDBLOCK && err != EAGAIN ) {
 194                         connection_closing( conn, "connection lost on write" );
 195
 196                         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 197                         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 198
 199                         return( -1 );
 200                 }
 201
 202                 /* wait for socket to be write-ready */
 203                 conn->c_writewaiter = 1;
 204                 ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_GET_FD, &sd );
 205                 slapd_set_write( sd, 1 );
 206
 207                 ldap_pvt_thread_cond_wait( &conn->c_write_cv, &conn->c_mutex );
 208                 conn->c_writewaiter = 0;
 209         }
 210
 211         ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 212         ldap_pvt_thread_mutex_unlock( &conn->c_write_mutex );
 213
 214         return bytes;
 215 }
 216
 217 static int
 218 send_ldap_control( BerElement *ber, LDAPControl *c )
 219 {
 220         int rc;
 221
 222         assert( c != NULL );
 223
 224         rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
 225
 226         if( c->ldctl_iscritical ) {
 227                 rc = ber_printf( ber, "b",
 228                         (ber_int_t) c->ldctl_iscritical ) ;
 229                 if( rc == -1 ) return rc;
 230         }
 231
 232         if( c->ldctl_value.bv_val != NULL ) {
 233                 rc = ber_printf( ber, "O", &c->ldctl_value );
 234                 if( rc == -1 ) return rc;
 235         }
 236
 237         rc = ber_printf( ber, /*{*/"N}" );
 238         if( rc == -1 ) return rc;
 239
 240         return 0;
 241 }
 242
 243 static int
 244 send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
 245 {
 246         int rc;
 247
 248         if( c == NULL )
 249                 return 0;
 250
 251         rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
 252         if( rc == -1 ) return rc;
 253
 254         for( ; *c != NULL; c++) {
 255                 rc = send_ldap_control( ber, *c );
 256                 if( rc == -1 ) return rc;
 257         }
 258
 259 #ifdef LDAP_DEVEL
 260         /* this is a hack to avoid having to modify op->s_ctrls */
 261         if( o->o_sortedresults ) {
 262                 BerElementBuffer berbuf;
 263                 BerElement *sber = (BerElement *) &berbuf;
 264                 LDAPControl sorted;
 265                 BER_BVZERO( &sorted.ldctl_value );
 266                 sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
 267                 sorted.ldctl_iscritical = 0;
 268
 269                 ber_init2( sber, NULL, LBER_USE_DER );
 270
 271                 ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
 272
 273                 if( ber_flatten2( ber, &sorted.ldctl_value, 0 ) == -1 ) {
 274                         return -1;
 275                 }
 276
 277                 (void) ber_free_buf( ber );
 278
 279                 rc = send_ldap_control( ber, &sorted );
 280                 if( rc == -1 ) return rc;
 281         }
 282 #endif
 283
 284         rc = ber_printf( ber, /*{*/"N}" );
 285
 286         return rc;
 287 }
 288
 289 static int
 290 send_ldap_response(
 291         Operation *op,
 292         SlapReply *rs )
 293 {
 294         BerElementBuffer berbuf;
 295         BerElement      *ber = (BerElement *) &berbuf;
 296         int             rc = LDAP_SUCCESS;
 297         long    bytes;
 298
 299         if ( rs->sr_err == SLAPD_ABANDON ) {
 300                 rc = SLAPD_ABANDON;
 301                 goto clean2;
 302         }
 303
 304         if ( op->o_callback ) {
 305                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 306
 307                 rc = SLAP_CB_CONTINUE;
 308                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 309                         sc_next = op->o_callback->sc_next;
 310                         if ( op->o_callback->sc_response ) {
 311                                 slap_callback *sc2 = op->o_callback;
 312                                 rc = op->o_callback->sc_response( op, rs );
 313                                 if ( op->o_callback != sc2 ) {
 314                                         *sc_prev = op->o_callback;
 315                                 }
 316                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 317                                 if ( op->o_callback != sc2 ) continue;
 318                         }
 319                         sc_prev = &op->o_callback->sc_next;
 320                 }
 321
 322                 op->o_callback = sc;
 323                 if ( rc != SLAP_CB_CONTINUE ) goto clean2;
 324         }
 325
 326 #ifdef LDAP_CONNECTIONLESS
 327         if (op->o_conn && op->o_conn->c_is_udp)
 328                 ber = op->o_res_ber;
 329         else
 330 #endif
 331         {
 332                 ber_init_w_nullc( ber, LBER_USE_DER );
 333                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 334         }
 335
 336         Debug( LDAP_DEBUG_TRACE,
 337                 "send_ldap_response: msgid=%d tag=%lu err=%d\n",
 338                 rs->sr_msgid, rs->sr_tag, rs->sr_err );
 339
 340         if( rs->sr_ref ) {
 341                 Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
 342                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 343                         NULL, NULL );
 344         }
 345
 346 #ifdef LDAP_CONNECTIONLESS
 347         if (op->o_conn && op->o_conn->c_is_udp &&
 348                 op->o_protocol == LDAP_VERSION2 )
 349         {
 350                 rc = ber_printf( ber, "t{ess" /*"}"*/,
 351                         rs->sr_tag, rs->sr_err,
 352                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 353                 rs->sr_text == NULL ? "" : rs->sr_text );
 354         } else
 355 #endif
 356         if ( rs->sr_type == REP_INTERMEDIATE ) {
 357             rc = ber_printf( ber, "{it{" /*"}}"*/,
 358                         rs->sr_msgid, rs->sr_tag );
 359
 360         } else {
 361             rc = ber_printf( ber, "{it{ess" /*"}}"*/,
 362                 rs->sr_msgid, rs->sr_tag, rs->sr_err,
 363                 rs->sr_matched == NULL ? "" : rs->sr_matched,
 364                 rs->sr_text == NULL ? "" : rs->sr_text );
 365         }
 366
 367         if( rc != -1 ) {
 368                 if ( rs->sr_ref != NULL ) {
 369                         assert( rs->sr_err == LDAP_REFERRAL );
 370                         rc = ber_printf( ber, "t{W}",
 371                                 LDAP_TAG_REFERRAL, rs->sr_ref );
 372                 } else {
 373                         assert( rs->sr_err != LDAP_REFERRAL );
 374                 }
 375         }
 376
 377         if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
 378                 rc = ber_printf( ber, "tO",
 379                         LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
 380         }
 381
 382         if( rc != -1 &&
 383                 ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
 384         {
 385                 if ( rs->sr_rspoid != NULL ) {
 386                         rc = ber_printf( ber, "ts",
 387                                 rs->sr_type == REP_EXTENDED
 388                                         ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
 389                                 rs->sr_rspoid );
 390                 }
 391                 if( rc != -1 && rs->sr_rspdata != NULL ) {
 392                         rc = ber_printf( ber, "tO",
 393                                 rs->sr_type == REP_EXTENDED
 394                                         ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
 395                                 rs->sr_rspdata );
 396                 }
 397         }
 398
 399         if( rc != -1 ) {
 400                 rc = ber_printf( ber, /*"{"*/ "N}" );
 401         }
 402
 403         if( rc != -1 ) {
 404                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
 405         }
 406
 407         if( rc != -1 ) {
 408                 rc = ber_printf( ber, /*"{"*/ "N}" );
 409         }
 410
 411 #ifdef LDAP_CONNECTIONLESS
 412         if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
 413                 && rc != -1 )
 414         {
 415                 rc = ber_printf( ber, /*"{"*/ "N}" );
 416         }
 417 #endif
 418
 419         if ( rc == -1 ) {
 420                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
 421
 422 #ifdef LDAP_CONNECTIONLESS
 423                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
 424 #endif
 425                 {
 426                         ber_free_buf( ber );
 427                 }
 428                 goto cleanup;
 429         }
 430
 431         /* send BER */
 432         bytes = send_ldap_ber( op->o_conn, ber );
 433 #ifdef LDAP_CONNECTIONLESS
 434         if (!op->o_conn || op->o_conn->c_is_udp == 0)
 435 #endif
 436         {
 437                 ber_free_buf( ber );
 438         }
 439
 440         if ( bytes < 0 ) {
 441                 Debug( LDAP_DEBUG_ANY,
 442                         "send_ldap_response: ber write failed\n",
 443                         0, 0, 0 );
 444
 445                 goto cleanup;
 446         }
 447
 448         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
 449         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
 450         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
 451         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
 452
 453 cleanup:;
 454         /* Tell caller that we did this for real, as opposed to being
 455          * overridden by a callback
 456          */
 457         rc = SLAP_CB_CONTINUE;
 458
 459 clean2:;
 460         if ( op->o_callback ) {
 461                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 462
 463                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
 464                         sc_next = op->o_callback->sc_next;
 465                         if ( op->o_callback->sc_cleanup ) {
 466                                 slap_callback *sc2 = op->o_callback;
 467                                 (void)op->o_callback->sc_cleanup( op, rs );
 468                                 if ( op->o_callback != sc2 ) {
 469                                         *sc_prev = op->o_callback;
 470                                 }
 471                                 if ( !op->o_callback ) break;
 472                                 if ( op->o_callback != sc2 ) continue;
 473                         }
 474                         sc_prev = &op->o_callback->sc_next;
 475                 }
 476                 op->o_callback = sc;
 477         }
 478
 479
 480         if ( rs->sr_matched && rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
 481                 free( (char *)rs->sr_matched );
 482                 rs->sr_matched = NULL;
 483         }
 484
 485         if ( rs->sr_ref && rs->sr_flags & REP_REF_MUSTBEFREED ) {
 486                 ber_bvarray_free( rs->sr_ref );
 487                 rs->sr_ref = NULL;
 488         }
 489
 490         return rc;
 491 }
 492
 493
 494 void
 495 send_ldap_disconnect( Operation *op, SlapReply *rs )
 496 {
 497 #define LDAP_UNSOLICITED_ERROR(e) \
 498         (  (e) == LDAP_PROTOCOL_ERROR \
 499         || (e) == LDAP_STRONG_AUTH_REQUIRED \
 500         || (e) == LDAP_UNAVAILABLE )
 501
 502         assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
 503
 504         rs->sr_type = REP_EXTENDED;
 505
 506         Debug( LDAP_DEBUG_TRACE,
 507                 "send_ldap_disconnect %d:%s\n",
 508                 rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
 509
 510         if ( op->o_protocol < LDAP_VERSION3 ) {
 511                 rs->sr_rspoid = NULL;
 512                 rs->sr_tag = slap_req2res( op->o_tag );
 513                 rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 514
 515         } else {
 516                 rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
 517                 rs->sr_tag = LDAP_RES_EXTENDED;
 518                 rs->sr_msgid = 0;
 519         }
 520
 521         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 522                 Statslog( LDAP_DEBUG_STATS,
 523                         "%s DISCONNECT tag=%lu err=%d text=%s\n",
 524                         op->o_log_prefix, rs->sr_tag, rs->sr_err,
 525                         rs->sr_text ? rs->sr_text : "", 0 );
 526         }
 527 }
 528
 529 void
 530 slap_send_ldap_result( Operation *op, SlapReply *rs )
 531 {
 532         char *tmp = NULL;
 533         const char *otext = rs->sr_text;
 534         BerVarray oref = rs->sr_ref;
 535
 536         rs->sr_type = REP_RESULT;
 537
 538         /* Propagate Abandons so that cleanup callbacks can be processed */
 539         if ( rs->sr_err == SLAPD_ABANDON )
 540                 goto abandon;
 541
 542         assert( !LDAP_API_ERROR( rs->sr_err ) );
 543
 544         Debug( LDAP_DEBUG_TRACE,
 545                 "send_ldap_result: %s p=%d\n",
 546                 op->o_log_prefix, op->o_protocol, 0 );
 547
 548         Debug( LDAP_DEBUG_ARGS,
 549                 "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
 550                 rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
 551                 rs->sr_text ? rs->sr_text : "" );
 552
 553
 554         if( rs->sr_ref ) {
 555                 Debug( LDAP_DEBUG_ARGS,
 556                         "send_ldap_result: referral=\"%s\"\n",
 557                         rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
 558                         NULL, NULL );
 559         }
 560
 561         assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
 562
 563         if ( rs->sr_err == LDAP_REFERRAL ) {
 564                 if( op->o_domain_scope ) rs->sr_ref = NULL;
 565
 566                 if( rs->sr_ref == NULL ) {
 567                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 568                 } else if ( op->o_protocol < LDAP_VERSION3 ) {
 569                         rs->sr_err = LDAP_PARTIAL_RESULTS;
 570                 }
 571         }
 572
 573         if ( op->o_protocol < LDAP_VERSION3 ) {
 574                 tmp = v2ref( rs->sr_ref, rs->sr_text );
 575                 rs->sr_text = tmp;
 576                 rs->sr_ref = NULL;
 577         }
 578
 579         rs->sr_tag = slap_req2res( op->o_tag );
 580         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 581
 582 abandon:
 583         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 584                 if ( op->o_tag == LDAP_REQ_SEARCH ) {
 585                         char nbuf[64];
 586                         snprintf( nbuf, sizeof nbuf, "%d nentries=%d",
 587                                 rs->sr_err, rs->sr_nentries );
 588
 589                         Statslog( LDAP_DEBUG_STATS,
 590                         "%s SEARCH RESULT tag=%lu err=%s text=%s\n",
 591                                 op->o_log_prefix, rs->sr_tag, nbuf,
 592                                 rs->sr_text ? rs->sr_text : "", 0 );
 593                 } else {
 594                         Statslog( LDAP_DEBUG_STATS,
 595                                 "%s RESULT tag=%lu err=%d text=%s\n",
 596                                 op->o_log_prefix, rs->sr_tag, rs->sr_err,
 597                                 rs->sr_text ? rs->sr_text : "", 0 );
 598                 }
 599         }
 600
 601         if( tmp != NULL ) ch_free(tmp);
 602         rs->sr_text = otext;
 603         rs->sr_ref = oref;
 604 }
 605
 606 void
 607 send_ldap_sasl( Operation *op, SlapReply *rs )
 608 {
 609         rs->sr_type = REP_SASL;
 610         Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
 611                 rs->sr_err,
 612                 rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
 613
 614         rs->sr_tag = slap_req2res( op->o_tag );
 615         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 616
 617         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 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 void
 626 slap_send_ldap_extended( Operation *op, SlapReply *rs )
 627 {
 628         rs->sr_type = REP_EXTENDED;
 629
 630         Debug( LDAP_DEBUG_TRACE,
 631                 "send_ldap_extended: err=%d oid=%s len=%ld\n",
 632                 rs->sr_err,
 633                 rs->sr_rspoid ? rs->sr_rspoid : "",
 634                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 635
 636         rs->sr_tag = slap_req2res( op->o_tag );
 637         rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
 638
 639         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 640                 Statslog( LDAP_DEBUG_STATS,
 641                         "%s RESULT oid=%s err=%d text=%s\n",
 642                         op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
 643                         rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
 644         }
 645 }
 646
 647 void
 648 slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
 649 {
 650         rs->sr_type = REP_INTERMEDIATE;
 651         Debug( LDAP_DEBUG_TRACE,
 652                 "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
 653                 rs->sr_err,
 654                 rs->sr_rspoid ? rs->sr_rspoid : "",
 655                 rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
 656         rs->sr_tag = LDAP_RES_INTERMEDIATE;
 657         rs->sr_msgid = op->o_msgid;
 658         if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
 659                 Statslog( LDAP_DEBUG_STATS2,
 660                         "%s INTERM oid=%s\n",
 661                         op->o_log_prefix,
 662                         rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
 663         }
 664 }
 665
 666 /*
 667  * returns:
 668  *
 669  * LDAP_SUCCESS                 entry sent
 670  * LDAP_OTHER                   entry not sent (other)
 671  * LDAP_INSUFFICIENT_ACCESS     entry not sent (ACL)
 672  * LDAP_UNAVAILABLE             entry not sent (connection closed)
 673  * LDAP_SIZELIMIT_EXCEEDED      entry not sent (caller must send sizelimitExceeded)
 674  */
 675
 676 int
 677 slap_send_search_entry( Operation *op, SlapReply *rs )
 678 {
 679         BerElementBuffer berbuf;
 680         BerElement      *ber = (BerElement *) &berbuf;
 681         Attribute       *a;
 682         int             i, j, rc = LDAP_UNAVAILABLE, bytes;
 683         char            *edn;
 684         int             userattrs;
 685         AccessControlState acl_state = ACL_STATE_INIT;
 686         int                      attrsonly;
 687         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
 688
 689         /* a_flags: array of flags telling if the i-th element will be
 690          *          returned or filtered out
 691          * e_flags: array of a_flags
 692          */
 693         char **e_flags = NULL;
 694
 695         if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
 696                 return LDAP_SIZELIMIT_EXCEEDED;
 697         }
 698
 699         rs->sr_type = REP_SEARCH;
 700
 701         /* eventually will loop through generated operational attribute types
 702          * currently implemented types include:
 703          *      entryDN, subschemaSubentry, and hasSubordinates */
 704         /* NOTE: moved before overlays callback circling because
 705          * they may modify entry and other stuff in rs */
 706         /* check for special all operational attributes ("+") type */
 707         /* FIXME: maybe we could se this flag at the operation level;
 708          * however, in principle the caller of send_search_entry() may
 709          * change the attribute list at each call */
 710         rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
 711
 712         rc = backend_operational( op, rs );
 713         if ( rc ) {
 714                 goto error_return;
 715         }
 716
 717         if ( op->o_callback ) {
 718                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
 719
 720                 rc = SLAP_CB_CONTINUE;
 721                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next )
 722                 {
 723                         sc_next = op->o_callback->sc_next;
 724                         if ( op->o_callback->sc_response ) {
 725                                 slap_callback *sc2 = op->o_callback;
 726                                 rc = op->o_callback->sc_response( op, rs );
 727                                 if ( op->o_callback != sc2 ) {
 728                                         *sc_prev = op->o_callback;
 729                                 }
 730                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
 731                                 if ( op->o_callback != sc2 ) continue;
 732                         }
 733                         sc_prev = &op->o_callback->sc_next;
 734                 }
 735
 736                 op->o_callback = sc;
 737                 if ( rc != SLAP_CB_CONTINUE ) goto error_return;
 738         }
 739
 740         Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
 741                 op->o_connid, rs->sr_entry->e_name.bv_val,
 742                 op->ors_attrsonly ? " (attrsOnly)" : "" );
 743
 744         attrsonly = op->ors_attrsonly;
 745
 746         if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
 747                 Debug( LDAP_DEBUG_ACL,
 748                         "send_search_entry: conn %lu access to entry (%s) not allowed\n",
 749                         op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
 750
 751                 rc = LDAP_INSUFFICIENT_ACCESS;
 752                 goto error_return;
 753         }
 754
 755         edn = rs->sr_entry->e_nname.bv_val;
 756
 757         if ( op->o_res_ber ) {
 758                 /* read back control or LDAP_CONNECTIONLESS */
 759             ber = op->o_res_ber;
 760         } else {
 761                 struct berval   bv;
 762
 763                 bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
 764                 bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
 765
 766                 ber_init2( ber, &bv, LBER_USE_DER );
 767                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
 768         }
 769
 770 #ifdef LDAP_CONNECTIONLESS
 771         if ( op->o_conn && op->o_conn->c_is_udp ) {
 772                 /* CONNECTIONLESS */
 773                 if ( op->o_protocol == LDAP_VERSION2 ) {
 774                 rc = ber_printf(ber, "t{O{" /*}}*/,
 775                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 776                 } else {
 777                 rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 778                                 LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 779                 }
 780         } else
 781 #endif
 782         if ( op->o_res_ber ) {
 783                 /* read back control */
 784             rc = ber_printf( ber, "{O{" /*}}*/, &rs->sr_entry->e_name );
 785         } else {
 786             rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
 787                         LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
 788         }
 789
 790         if ( rc == -1 ) {
 791                 Debug( LDAP_DEBUG_ANY,
 792                         "send_search_entry: conn %lu  ber_printf failed\n",
 793                         op->o_connid, 0, 0 );
 794
 795                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 796                 send_ldap_error( op, rs, LDAP_OTHER, "encoding DN error" );
 797                 rc = rs->sr_err;
 798                 goto error_return;
 799         }
 800
 801         /* check for special all user attributes ("*") type */
 802         userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
 803
 804         /* create an array of arrays of flags. Each flag corresponds
 805          * to particular value of attribute and equals 1 if value matches
 806          * to ValuesReturnFilter or 0 if not
 807          */
 808         if ( op->o_vrFilter != NULL ) {
 809                 int     k = 0;
 810                 size_t  size;
 811
 812                 for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 813                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 814                 }
 815
 816                 size = i * sizeof(char *) + k;
 817                 if ( size > 0 ) {
 818                         char    *a_flags;
 819                         e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
 820                         if( e_flags == NULL ) {
 821                         Debug( LDAP_DEBUG_ANY,
 822                                         "send_search_entry: conn %lu slap_sl_calloc failed\n",
 823                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 824                                 ber_free( ber, 1 );
 825
 826                                 send_ldap_error( op, rs, LDAP_OTHER, "out of memory" );
 827                                 goto error_return;
 828                         }
 829                         a_flags = (char *)(e_flags + i);
 830                         memset( a_flags, 0, k );
 831                         for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
 832                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 833                                 e_flags[i] = a_flags;
 834                                 a_flags += j;
 835                         }
 836
 837                         rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
 838                         if ( rc == -1 ) {
 839                                 Debug( LDAP_DEBUG_ANY, "send_search_entry: "
 840                                         "conn %lu matched values filtering failed\n",
 841                                         op->o_connid ? op->o_connid : 0, 0, 0 );
 842                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 843                                 send_ldap_error( op, rs, LDAP_OTHER,
 844                                         "matched values filtering error" );
 845                                 rc = rs->sr_err;
 846                                 goto error_return;
 847                         }
 848                 }
 849         }
 850
 851         for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
 852                 AttributeDescription *desc = a->a_desc;
 853                 int finish = 0;
 854
 855                 if ( rs->sr_attrs == NULL ) {
 856                         /* all user attrs request, skip operational attributes */
 857                         if( is_at_operational( desc->ad_type ) ) {
 858                                 continue;
 859                         }
 860
 861                 } else {
 862                         /* specific attrs requested */
 863                         if ( is_at_operational( desc->ad_type ) ) {
 864                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
 865                                         !ad_inlist( desc, rs->sr_attrs ) )
 866                                 {
 867                                         continue;
 868                                 }
 869
 870                         } else {
 871                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
 872                                         continue;
 873                                 }
 874                         }
 875                 }
 876
 877                 if ( attrsonly ) {
 878                         if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
 879                                 ACL_READ, &acl_state ) )
 880                         {
 881                                 Debug( LDAP_DEBUG_ACL, "send_search_entry: "
 882                                         "conn %lu access to attribute %s not allowed\n",
 883                                         op->o_connid, desc->ad_cname.bv_val, 0 );
 884                                 continue;
 885                         }
 886
 887                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 888                                 Debug( LDAP_DEBUG_ANY,
 889                                         "send_search_entry: conn %lu  ber_printf failed\n",
 890                                         op->o_connid, 0, 0 );
 891
 892                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 893                                 send_ldap_error( op, rs, LDAP_OTHER,
 894                                         "encoding description error");
 895                                 rc = rs->sr_err;
 896                                 goto error_return;
 897                         }
 898                         finish = 1;
 899
 900                 } else {
 901                         int first = 1;
 902                         for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
 903                                 if ( ! access_allowed( op, rs->sr_entry,
 904                                         desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
 905                                 {
 906                                         Debug( LDAP_DEBUG_ACL,
 907                                                 "send_search_entry: conn %lu "
 908                                                 "access to attribute %s, value #%d not allowed\n",
 909                                                 op->o_connid, desc->ad_cname.bv_val, i );
 910
 911                                         continue;
 912                                 }
 913
 914                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
 915                                         continue;
 916                                 }
 917
 918                                 if ( first ) {
 919                                         first = 0;
 920                                         finish = 1;
 921                                         if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
 922                                                 Debug( LDAP_DEBUG_ANY,
 923                                                         "send_search_entry: conn %lu  ber_printf failed\n",
 924                                                         op->o_connid, 0, 0 );
 925
 926                                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 927                                                 send_ldap_error( op, rs, LDAP_OTHER,
 928                                                         "encoding description error");
 929                                                 rc = rs->sr_err;
 930                                                 goto error_return;
 931                                         }
 932                                 }
 933                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
 934                                         Debug( LDAP_DEBUG_ANY,
 935                                                 "send_search_entry: conn %lu  "
 936                                                 "ber_printf failed.\n", op->o_connid, 0, 0 );
 937
 938                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 939                                         send_ldap_error( op, rs, LDAP_OTHER,
 940                                                 "encoding values error" );
 941                                         rc = rs->sr_err;
 942                                         goto error_return;
 943                                 }
 944                         }
 945                 }
 946
 947                 if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
 948                         Debug( LDAP_DEBUG_ANY,
 949                                 "send_search_entry: conn %lu ber_printf failed\n",
 950                                 op->o_connid, 0, 0 );
 951
 952                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 953                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
 954                         rc = rs->sr_err;
 955                         goto error_return;
 956                 }
 957         }
 958
 959         /* NOTE: moved before overlays callback circling because
 960          * they may modify entry and other stuff in rs */
 961         if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
 962                 int     k = 0;
 963                 size_t  size;
 964
 965                 for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 966                         for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
 967                 }
 968
 969                 size = i * sizeof(char *) + k;
 970                 if ( size > 0 ) {
 971                         char    *a_flags, **tmp;
 972
 973                         /*
 974                          * Reuse previous memory - we likely need less space
 975                          * for operational attributes
 976                          */
 977                         tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
 978                                 op->o_tmpmemctx );
 979                         if ( tmp == NULL ) {
 980                                 Debug( LDAP_DEBUG_ANY,
 981                                         "send_search_entry: conn %lu "
 982                                         "not enough memory "
 983                                         "for matched values filtering\n",
 984                                         op->o_connid, 0, 0 );
 985                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
 986                                 send_ldap_error( op, rs, LDAP_OTHER,
 987                                         "not enough memory for matched values filtering" );
 988                                 goto error_return;
 989                         }
 990                         e_flags = tmp;
 991                         a_flags = (char *)(e_flags + i);
 992                         memset( a_flags, 0, k );
 993                         for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
 994                                 for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
 995                                 e_flags[i] = a_flags;
 996                                 a_flags += j;
 997                         }
 998                         rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
 999
1000                         if ( rc == -1 ) {
1001                                 Debug( LDAP_DEBUG_ANY,
1002                                         "send_search_entry: conn %lu "
1003                                         "matched values filtering failed\n",
1004                                         op->o_connid ? op->o_connid : 0, 0, 0);
1005                                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1006                                 send_ldap_error( op, rs, LDAP_OTHER,
1007                                         "matched values filtering error" );
1008                                 rc = rs->sr_err;
1009                                 goto error_return;
1010                         }
1011                 }
1012         }
1013
1014         for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
1015                 AttributeDescription *desc = a->a_desc;
1016
1017                 if ( rs->sr_attrs == NULL ) {
1018                         /* all user attrs request, skip operational attributes */
1019                         if( is_at_operational( desc->ad_type ) ) {
1020                                 continue;
1021                         }
1022
1023                 } else {
1024                         /* specific attrs requested */
1025                         if( is_at_operational( desc->ad_type ) ) {
1026                                 if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
1027                                         !ad_inlist( desc, rs->sr_attrs ) )
1028                                 {
1029                                         continue;
1030                                 }
1031                         } else {
1032                                 if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
1033                                         continue;
1034                                 }
1035                         }
1036                 }
1037
1038                 if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
1039                         ACL_READ, &acl_state ) )
1040                 {
1041                         Debug( LDAP_DEBUG_ACL,
1042                                 "send_search_entry: conn %lu "
1043                                 "access to attribute %s not allowed\n",
1044                                 op->o_connid, desc->ad_cname.bv_val, 0 );
1045
1046                         continue;
1047                 }
1048
1049                 rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
1050                 if ( rc == -1 ) {
1051                         Debug( LDAP_DEBUG_ANY,
1052                                 "send_search_entry: conn %lu  "
1053                                 "ber_printf failed\n", op->o_connid, 0, 0 );
1054
1055                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1056                         send_ldap_error( op, rs, LDAP_OTHER,
1057                                 "encoding description error" );
1058                         rc = rs->sr_err;
1059                         goto error_return;
1060                 }
1061
1062                 if ( ! attrsonly ) {
1063                         for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
1064                                 if ( ! access_allowed( op, rs->sr_entry,
1065                                         desc, &a->a_vals[i], ACL_READ, &acl_state ) )
1066                                 {
1067                                         Debug( LDAP_DEBUG_ACL,
1068                                                 "send_search_entry: conn %lu "
1069                                                 "access to %s, value %d not allowed\n",
1070                                                 op->o_connid, desc->ad_cname.bv_val, i );
1071
1072                                         continue;
1073                                 }
1074
1075                                 if ( op->o_vrFilter && e_flags[j][i] == 0 ){
1076                                         continue;
1077                                 }
1078
1079                                 if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
1080                                         Debug( LDAP_DEBUG_ANY,
1081                                                 "send_search_entry: conn %lu  ber_printf failed\n",
1082                                                 op->o_connid, 0, 0 );
1083
1084                                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1085                                         send_ldap_error( op, rs, LDAP_OTHER,
1086                                                 "encoding values error" );
1087                                         rc = rs->sr_err;
1088                                         goto error_return;
1089                                 }
1090                         }
1091                 }
1092
1093                 if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
1094                         Debug( LDAP_DEBUG_ANY,
1095                                 "send_search_entry: conn %lu  ber_printf failed\n",
1096                                 op->o_connid, 0, 0 );
1097
1098                         if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1099                         send_ldap_error( op, rs, LDAP_OTHER, "encode end error" );
1100                         rc = rs->sr_err;
1101                         goto error_return;
1102                 }
1103         }
1104
1105         /* free e_flags */
1106         if ( e_flags ) {
1107                 slap_sl_free( e_flags, op->o_tmpmemctx );
1108                 e_flags = NULL;
1109         }
1110
1111         rc = ber_printf( ber, /*{{*/ "}N}" );
1112
1113         if( rc != -1 ) {
1114                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1115         }
1116
1117         if( rc != -1 ) {
1118 #ifdef LDAP_CONNECTIONLESS
1119                 if( op->o_conn && op->o_conn->c_is_udp ) {
1120                         if ( op->o_protocol != LDAP_VERSION2 ) {
1121                                 rc = ber_printf( ber, /*{*/ "N}" );
1122                         }
1123                 } else
1124 #endif
1125                 if ( op->o_res_ber == NULL ) {
1126                         rc = ber_printf( ber, /*{*/ "N}" );
1127                 }
1128         }
1129
1130         if ( rc == -1 ) {
1131                 Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
1132
1133                 if ( op->o_res_ber == NULL ) ber_free_buf( ber );
1134                 send_ldap_error( op, rs, LDAP_OTHER, "encode entry end error" );
1135                 rc = rs->sr_err;
1136                 goto error_return;
1137         }
1138
1139         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1140                 be_entry_release_rw( op, rs->sr_entry, 0 );
1141                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1142                 rs->sr_entry = NULL;
1143         }
1144
1145         if ( op->o_res_ber == NULL ) {
1146                 bytes = send_ldap_ber( op->o_conn, ber );
1147                 ber_free_buf( ber );
1148
1149                 if ( bytes < 0 ) {
1150                         Debug( LDAP_DEBUG_ANY,
1151                                 "send_search_entry: conn %lu  ber write failed.\n",
1152                                 op->o_connid, 0, 0 );
1153
1154                         rc = LDAP_UNAVAILABLE;
1155                         goto error_return;
1156                 }
1157                 rs->sr_nentries++;
1158
1159                 ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1160                 ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1161                 ldap_pvt_mp_add_ulong( slap_counters.sc_entries, 1 );
1162                 ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1163                 ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1164         }
1165
1166         Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
1167             op->o_log_prefix, edn, 0, 0, 0 );
1168
1169         Debug( LDAP_DEBUG_TRACE,
1170                 "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
1171
1172         rc = LDAP_SUCCESS;
1173
1174 error_return:;
1175         if ( op->o_callback ) {
1176                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1177
1178                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1179                         sc_next = op->o_callback->sc_next;
1180                         if ( op->o_callback->sc_cleanup ) {
1181                                 slap_callback *sc2 = op->o_callback;
1182                                 (void)op->o_callback->sc_cleanup( op, rs );
1183                                 if ( op->o_callback != sc2 ) {
1184                                         *sc_prev = op->o_callback;
1185                                 }
1186                                 if ( !op->o_callback ) break;
1187                                 if ( op->o_callback != sc2 ) continue;
1188                         }
1189                         sc_prev = &op->o_callback->sc_next;
1190                 }
1191                 op->o_callback = sc;
1192         }
1193
1194         if ( e_flags ) {
1195                 slap_sl_free( e_flags, op->o_tmpmemctx );
1196         }
1197
1198         if ( rs->sr_operational_attrs ) {
1199                 attrs_free( rs->sr_operational_attrs );
1200                 rs->sr_operational_attrs = NULL;
1201         }
1202         rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
1203
1204         /* FIXME: I think rs->sr_type should be explicitly set to
1205          * REP_SEARCH here. That's what it was when we entered this
1206          * function. send_ldap_error may have changed it, but we
1207          * should set it back so that the cleanup functions know
1208          * what they're doing.
1209          */
1210         if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH
1211                 && rs->sr_entry
1212                 && ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) )
1213         {
1214                 entry_free( rs->sr_entry );
1215                 rs->sr_entry = NULL;
1216                 rs->sr_flags &= ~REP_ENTRY_MUSTBEFREED;
1217         }
1218
1219         return( rc );
1220 }
1221
1222 int
1223 slap_send_search_reference( Operation *op, SlapReply *rs )
1224 {
1225         BerElementBuffer berbuf;
1226         BerElement      *ber = (BerElement *) &berbuf;
1227         int rc = 0;
1228         int bytes;
1229
1230         AttributeDescription *ad_ref = slap_schema.si_ad_ref;
1231         AttributeDescription *ad_entry = slap_schema.si_ad_entry;
1232
1233         rs->sr_type = REP_SEARCHREF;
1234         if ( op->o_callback ) {
1235                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1236
1237                 rc = SLAP_CB_CONTINUE;
1238                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1239                         sc_next = op->o_callback->sc_next;
1240                         if ( op->o_callback->sc_response ) {
1241                                 slap_callback *sc2 = op->o_callback;
1242                                 rc = op->o_callback->sc_response( op, rs );
1243                                 if ( op->o_callback != sc2 ) {
1244                                         *sc_prev = op->o_callback;
1245                                 }
1246                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
1247                                 if ( op->o_callback != sc2 ) continue;
1248                         }
1249                         sc_prev = &op->o_callback->sc_next;
1250                 }
1251
1252                 op->o_callback = sc;
1253                 if ( rc != SLAP_CB_CONTINUE ) goto rel;
1254         }
1255
1256         Debug( LDAP_DEBUG_TRACE,
1257                 "=> send_search_reference: dn=\"%s\"\n",
1258                 rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)", 0, 0 );
1259
1260         if (  rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1261                 ad_entry, NULL, ACL_READ, NULL ) )
1262         {
1263                 Debug( LDAP_DEBUG_ACL,
1264                         "send_search_reference: access to entry not allowed\n",
1265                     0, 0, 0 );
1266                 rc = 1;
1267                 goto rel;
1268         }
1269
1270         if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
1271                 ad_ref, NULL, ACL_READ, NULL ) )
1272         {
1273                 Debug( LDAP_DEBUG_ACL,
1274                         "send_search_reference: access "
1275                         "to reference not allowed\n",
1276                     0, 0, 0 );
1277                 rc = 1;
1278                 goto rel;
1279         }
1280
1281         if( op->o_domain_scope ) {
1282                 Debug( LDAP_DEBUG_ANY,
1283                         "send_search_reference: domainScope control in (%s)\n",
1284                         rs->sr_entry->e_dn, 0, 0 );
1285                 rc = 0;
1286                 goto rel;
1287         }
1288
1289         if( rs->sr_ref == NULL ) {
1290                 Debug( LDAP_DEBUG_ANY,
1291                         "send_search_reference: null ref in (%s)\n",
1292                         rs->sr_entry ? rs->sr_entry->e_dn : "(null)", 0, 0 );
1293                 rc = 1;
1294                 goto rel;
1295         }
1296
1297         if( op->o_protocol < LDAP_VERSION3 ) {
1298                 rc = 0;
1299                 /* save the references for the result */
1300                 if( rs->sr_ref[0].bv_val != NULL ) {
1301                         if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
1302                                 rc = LDAP_OTHER;
1303                 }
1304                 goto rel;
1305         }
1306
1307 #ifdef LDAP_CONNECTIONLESS
1308         if( op->o_conn && op->o_conn->c_is_udp ) {
1309                 ber = op->o_res_ber;
1310         } else
1311 #endif
1312         {
1313                 ber_init_w_nullc( ber, LBER_USE_DER );
1314                 ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1315         }
1316
1317         rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
1318                 LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
1319
1320         if( rc != -1 ) {
1321                 rc = send_ldap_controls( op, ber, rs->sr_ctrls );
1322         }
1323
1324         if( rc != -1 ) {
1325                 rc = ber_printf( ber, /*"{"*/ "N}" );
1326         }
1327
1328         if ( rc == -1 ) {
1329                 Debug( LDAP_DEBUG_ANY,
1330                         "send_search_reference: ber_printf failed\n", 0, 0, 0 );
1331
1332 #ifdef LDAP_CONNECTIONLESS
1333                 if (!op->o_conn || op->o_conn->c_is_udp == 0)
1334 #endif
1335                 ber_free_buf( ber );
1336                 send_ldap_error( op, rs, LDAP_OTHER, "encode DN error" );
1337                 goto rel;
1338         }
1339
1340         rc = 0;
1341         if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
1342                 be_entry_release_rw( op, rs->sr_entry, 0 );
1343                 rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
1344                 rs->sr_entry = NULL;
1345         }
1346
1347 #ifdef LDAP_CONNECTIONLESS
1348         if (!op->o_conn || op->o_conn->c_is_udp == 0) {
1349 #endif
1350         bytes = send_ldap_ber( op->o_conn, ber );
1351         ber_free_buf( ber );
1352
1353         ldap_pvt_thread_mutex_lock( &slap_counters.sc_sent_mutex );
1354         ldap_pvt_mp_add_ulong( slap_counters.sc_bytes, (unsigned long)bytes );
1355         ldap_pvt_mp_add_ulong( slap_counters.sc_refs, 1 );
1356         ldap_pvt_mp_add_ulong( slap_counters.sc_pdu, 1 );
1357         ldap_pvt_thread_mutex_unlock( &slap_counters.sc_sent_mutex );
1358 #ifdef LDAP_CONNECTIONLESS
1359         }
1360 #endif
1361         if ( rs->sr_ref != NULL ) {
1362                 int     r;
1363
1364                 for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
1365                         Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
1366                                 op->o_log_prefix, r, rs->sr_ref[0].bv_val,
1367                                 0, 0 );
1368                 }
1369
1370         } else {
1371                 Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
1372                         op->o_log_prefix, 0, 0, 0, 0 );
1373         }
1374
1375         Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
1376
1377 rel:
1378         if ( op->o_callback ) {
1379                 slap_callback   *sc = op->o_callback, **sc_prev = &sc, *sc_next;
1380
1381                 for ( sc_next = op->o_callback; sc_next; op->o_callback = sc_next) {
1382                         sc_next = op->o_callback->sc_next;
1383                         if ( op->o_callback->sc_cleanup ) {
1384                                 slap_callback *sc2 = op->o_callback;
1385                                 (void)op->o_callback->sc_cleanup( op, rs );
1386                                 if ( op->o_callback != sc2 ) {
1387                                         *sc_prev = op->o_callback;
1388                                 }
1389                                 if ( rc != SLAP_CB_CONTINUE || !op->o_callback ) break;
1390                                 if ( op->o_callback != sc2 ) continue;
1391                         }
1392                         sc_prev = &op->o_callback->sc_next;
1393                 }
1394                 op->o_callback = sc;
1395         }
1396
1397         return rc;
1398 }
1399
1400 int
1401 str2result(
1402     char        *s,
1403     int         *code,
1404     char        **matched,
1405     char        **info )
1406 {
1407         int     rc;
1408         char    *c;
1409
1410         *code = LDAP_SUCCESS;
1411         *matched = NULL;
1412         *info = NULL;
1413
1414         if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
1415                 Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
1416                     s, 0, 0 );
1417
1418                 return( -1 );
1419         }
1420
1421         rc = 0;
1422         while ( (s = strchr( s, '\n' )) != NULL ) {
1423                 *s++ = '\0';
1424                 if ( *s == '\0' ) {
1425                         break;
1426                 }
1427                 if ( (c = strchr( s, ':' )) != NULL ) {
1428                         c++;
1429                 }
1430
1431                 if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
1432                         if ( c != NULL && lutil_atoi( code, c ) != 0 ) {
1433                                 goto bailout;
1434                         }
1435                 } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
1436                         if ( c != NULL ) {
1437                                 *matched = c;
1438                         }
1439                 } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
1440                         if ( c != NULL ) {
1441                                 *info = c;
1442                         }
1443                 } else {
1444 bailout:;
1445                         Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
1446                             s, 0, 0 );
1447
1448                         rc = -1;
1449                 }
1450         }
1451
1452         return( rc );
1453 }
1454
1455 int slap_read_controls(
1456         Operation *op,
1457         SlapReply *rs,
1458         Entry *e,
1459         const struct berval *oid,
1460         LDAPControl **ctrl )
1461 {
1462         int rc;
1463         struct berval bv;
1464         BerElementBuffer berbuf;
1465         BerElement *ber = (BerElement *) &berbuf;
1466         LDAPControl c;
1467         Operation myop;
1468
1469         Debug( LDAP_DEBUG_ANY, "slap_read_controls: (%s) %s\n",
1470                 oid->bv_val, e->e_dn, 0 );
1471
1472         rs->sr_entry = e;
1473         rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
1474                 op->o_preread_attrs : op->o_postread_attrs;
1475
1476         bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
1477         bv.bv_val = op->o_tmpalloc(bv.bv_len, op->o_tmpmemctx );
1478
1479         ber_init2( ber, &bv, LBER_USE_DER );
1480         ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
1481
1482         /* create new operation */
1483         myop = *op;
1484         myop.o_bd = NULL;
1485         myop.o_res_ber = ber;
1486         myop.o_callback = NULL;
1487
1488         rc = slap_send_search_entry( &myop, rs );
1489         if( rc ) return rc;
1490
1491         rc = ber_flatten2( ber, &c.ldctl_value, 0 );
1492
1493         if( rc == LBER_ERROR ) return LDAP_OTHER;
1494
1495         c.ldctl_oid = oid->bv_val;
1496         c.ldctl_iscritical = 0;
1497
1498         if ( *ctrl == NULL ) {
1499                 /* first try */
1500                 *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
1501         } else {
1502                 /* retry: free previous try */
1503                 slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
1504         }
1505
1506         **ctrl = c;
1507         return LDAP_SUCCESS;
1508 }
1509
1510 /* Map API errors to protocol errors... */
1511 int
1512 slap_map_api2result( SlapReply *rs )
1513 {
1514         switch(rs->sr_err) {
1515         case LDAP_SERVER_DOWN:
1516                 return LDAP_UNAVAILABLE;
1517         case LDAP_LOCAL_ERROR:
1518                 return LDAP_OTHER;
1519         case LDAP_ENCODING_ERROR:
1520         case LDAP_DECODING_ERROR:
1521                 return LDAP_PROTOCOL_ERROR;
1522         case LDAP_TIMEOUT:
1523                 return LDAP_UNAVAILABLE;
1524         case LDAP_AUTH_UNKNOWN:
1525                 return LDAP_AUTH_METHOD_NOT_SUPPORTED;
1526         case LDAP_FILTER_ERROR:
1527                 rs->sr_text = "Filter error";
1528                 return LDAP_OTHER;
1529         case LDAP_USER_CANCELLED:
1530                 rs->sr_text = "User cancelled";
1531                 return LDAP_OTHER;
1532         case LDAP_PARAM_ERROR:
1533                 return LDAP_PROTOCOL_ERROR;
1534         case LDAP_NO_MEMORY:
1535                 return LDAP_OTHER;
1536         case LDAP_CONNECT_ERROR:
1537                 return LDAP_UNAVAILABLE;
1538         case LDAP_NOT_SUPPORTED:
1539                 return LDAP_UNWILLING_TO_PERFORM;
1540         case LDAP_CONTROL_NOT_FOUND:
1541                 return LDAP_PROTOCOL_ERROR;
1542         case LDAP_NO_RESULTS_RETURNED:
1543                 return LDAP_NO_SUCH_OBJECT;
1544         case LDAP_MORE_RESULTS_TO_RETURN:
1545                 rs->sr_text = "More results to return";
1546                 return LDAP_OTHER;
1547         case LDAP_CLIENT_LOOP:
1548         case LDAP_REFERRAL_LIMIT_EXCEEDED:
1549                 return LDAP_LOOP_DETECT;
1550         default:
1551                 if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
1552                 return rs->sr_err;
1553         }
1554 }
1555
1556
1557 slap_mask_t
1558 slap_attr_flags( AttributeName *an )
1559 {
1560         slap_mask_t     flags = SLAP_ATTRS_UNDEFINED;
1561
1562         if ( an == NULL ) {
1563                 flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
1564
1565         } else {
1566                 flags |= an_find( an, &AllOper )
1567                         ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
1568                 flags |= an_find( an, &AllUser )
1569                         ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
1570         }
1571
1572         return flags;
1573 }
1574