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