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[openldap] / servers / slapd / back-meta / search.c
index 0479735c7f70daf6cd1826bd8e8c6d87965a3fe2..3dbd522a8be9a3b305032280a155caaef129ed33 100644 (file)
@@ -1,67 +1,23 @@
-/*
- * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
+ * Copyright 1999-2005 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 Pierangelo Masarati.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * All rights reserved.
  *
- * This work has been developed to fulfill the requirements
- * of SysNet s.n.c. <http:www.sys-net.it> and it has been donated
- * to the OpenLDAP Foundation in the hope that it may be useful
- * to the Open Source community, but WITHOUT ANY WARRANTY.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
  *
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- *
- * 1. The author and SysNet s.n.c. are not responsible for the consequences
- *    of use of this software, no matter how awful, even if they arise from 
- *    flaws in it.
- *
- * 2. The origin of this software must not be misrepresented, either by
- *    explicit claim or by omission.  Since few users ever read sources,
- *    credits should appear in the documentation.
- *
- * 3. Altered versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.  Since few users
- *    ever read sources, credits should appear in the documentation.
- *    SysNet s.n.c. cannot be responsible for the consequences of the
- *    alterations.
- *
- * 4. This notice may not be removed or altered.
- *
- *
- * This software is based on the backend back-ldap, implemented
- * by Howard Chu <hyc@highlandsun.com>, and modified by Mark Valence
- * <kurash@sassafras.com>, Pierangelo Masarati <ando@sys-net.it> and other
- * contributors. The contribution of the original software to the present
- * implementation is acknowledged in this copyright statement.
- *
- * A special acknowledgement goes to Howard for the overall architecture
- * (and for borrowing large pieces of code), and to Mark, who implemented
- * from scratch the attribute/objectclass mapping.
- *
- * The original copyright statement follows.
- *
- * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
- *
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- *
- * 1. The author is not responsible for the consequences of use of this
- *    software, no matter how awful, even if they arise from flaws in it.
- *
- * 2. The origin of this software must not be misrepresented, either by
- *    explicit claim or by omission.  Since few users ever read sources,
- *    credits should appear in the documentation.
- *
- * 3. Altered versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.  Since few users
- *    ever read sources, credits should appear in the
- *    documentation.
- *
- * 4. This notice may not be removed or altered.
- *                
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
  */
 
 #include "portable.h"
@@ -75,7 +31,6 @@
 #include "slap.h"
 #include "../back-ldap/back-ldap.h"
 #include "back-meta.h"
-#include "ldap_pvt.h"
 #undef ldap_debug      /* silence a warning in ldap-int.h */
 #include "ldap_log.h"
 #include "../../../libraries/libldap/ldap-int.h"
@@ -89,12 +44,6 @@ meta_send_entry(
                LDAPMessage     *e
 );
 
-static int
-is_one_level_rdn(
-               const char      *rdn,
-               int             from
-);
-
 int
 meta_back_search( Operation *op, SlapReply *rs )
 {
@@ -102,35 +51,19 @@ meta_back_search( Operation *op, SlapReply *rs )
        struct metaconn *lc;
        struct metasingleconn *lsc;
        struct timeval  tv = { 0, 0 };
-       LDAPMessage     *res, *e;
-       int     rc = 0, *msgid, sres = LDAP_NO_SUCH_OBJECT;
+       LDAPMessage     *res = NULL, *e;
+       int     rc = 0, *msgid, sres = LDAP_SUCCESS;
        char *err = NULL;
-       struct berval match = { 0, NULL }, mmatch = { 0, NULL };
+       struct berval match = BER_BVNULL, mmatch = BER_BVNULL;
        BerVarray v2refs = NULL;
                
        int i, last = 0, candidates = 0, initial_candidates = 0,
                        candidate_match = 0;
-       struct slap_limits_set *limit = NULL;
-       int isroot = 0;
        dncookie dc;
 
-#ifdef LDAP_CACHING
-       cache_manager*  cm = li->cm;
-
-       if (cm->caching) {
-               return meta_back_cache_search(op->o_bd, op->o_conn, op,
-                               &op->o_req_dn, &op->o_req_ndn, 
-                               op->oq_search.rs_scope,
-                               op->oq_search.rs_deref,
-                               op->oq_search.rs_slimit,
-                               op->oq_search.rs_tlimit,
-                               op->oq_search.rs_filter,
-                               &op->oq_search.rs_filterstr,
-                               op->oq_search.rs_attrs,
-                               op->oq_search.rs_attrsonly); 
-       }
-#endif /* LDAP_CACHING */
-       
+       int     is_scope = 0,
+               is_filter = 0;
+
        /*
         * controls are set in ldap_back_dobind()
         * 
@@ -138,16 +71,9 @@ meta_back_search( Operation *op, SlapReply *rs )
         * to map attrs and maybe rewrite value
         */
        lc = meta_back_getconn( op, rs, META_OP_ALLOW_MULTIPLE, 
-                       &op->o_req_ndn, NULL );
-       if ( !lc ) {
-               send_ldap_result( op, rs );
-               return -1;
-       }
-
-       if ( !meta_back_dobind( lc, op ) ) {
-               rs->sr_err = LDAP_OTHER;
-               send_ldap_result( op, rs );
-               return -1;
+                       &op->o_req_ndn, NULL, LDAP_BACK_SENDERR );
+       if ( !lc || !meta_back_dobind( lc, op, LDAP_BACK_SENDERR ) ) {
+               return rs->sr_err;
        }
 
        /*
@@ -160,95 +86,47 @@ meta_back_search( Operation *op, SlapReply *rs )
                return -1;
        }
        
-       /* if not root, get appropriate limits */
-       if ( be_isroot( op->o_bd, &op->o_ndn ) ) {
-               isroot = 1;
-       } else {
-               ( void ) get_limits( op->o_bd, &op->o_ndn, &limit );
-       }
-
-       /* if no time limit requested, rely on remote server limits */
-       /* if requested limit higher than hard limit, abort */
-       if ( !isroot && op->oq_search.rs_tlimit > limit->lms_t_hard ) {
-               /* no hard limit means use soft instead */
-               if ( limit->lms_t_hard == 0
-                               && limit->lms_t_soft > -1
-                               && op->oq_search.rs_tlimit > limit->lms_t_soft ) {
-                       op->oq_search.rs_tlimit = limit->lms_t_soft;
-                       
-               /* positive hard limit means abort */
-               } else if ( limit->lms_t_hard > 0 ) {
-                       rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
-                       send_ldap_result( op, rs );
-                       rc = 0;
-                       goto finish;
-               }
-               
-               /* negative hard limit means no limit */
-       }
-       
-       /* if no size limit requested, rely on remote server limits */
-       /* if requested limit higher than hard limit, abort */
-       if ( !isroot && op->oq_search.rs_slimit > limit->lms_s_hard ) {
-               /* no hard limit means use soft instead */
-               if ( limit->lms_s_hard == 0
-                               && limit->lms_s_soft > -1
-                               && op->oq_search.rs_slimit > limit->lms_s_soft ) {
-                       op->oq_search.rs_slimit = limit->lms_s_soft;
-                       
-               /* positive hard limit means abort */
-               } else if ( limit->lms_s_hard > 0 ) {
-                       rs->sr_err = LDAP_ADMINLIMIT_EXCEEDED;
-                       send_ldap_result( op, rs );
-                       rc = 0;
-                       goto finish;
-               }
-               
-               /* negative hard limit means no limit */
-       }
-
-
        dc.conn = op->o_conn;
        dc.rs = rs;
 
        /*
         * Inits searches
         */
-       for ( i = 0, lsc = lc->conns; !META_LAST(lsc); ++i, ++lsc ) {
+       for ( i = 0, lsc = lc->mc_conns; !META_LAST( lsc ); ++i, ++lsc ) {
                struct berval   realbase = op->o_req_dn;
-               int             realscope = op->oq_search.rs_scope;
+               int             realscope = op->ors_scope;
                ber_len_t       suffixlen = 0;
-               struct berval   mbase = { 0, NULL }
-               struct berval   mfilter = { 0, NULL };
+               struct berval   mbase = BER_BVNULL
+               struct berval   mfilter = BER_BVNULL;
                char            **mapped_attrs = NULL;
 
-               if ( lsc->candidate != META_CANDIDATE ) {
+               if ( lsc->msc_candidate != META_CANDIDATE ) {
                        msgid[ i ] = -1;
                        continue;
                }
 
                /* should we check return values? */
-               if ( op->oq_search.rs_deref != -1 ) {
-                       ldap_set_option( lsc->ld, LDAP_OPT_DEREF,
-                                       ( void * )&op->oq_search.rs_deref);
+               if ( op->ors_deref != -1 ) {
+                       ldap_set_option( lsc->msc_ld, LDAP_OPT_DEREF,
+                                       ( void * )&op->ors_deref);
                }
-               if ( op->oq_search.rs_tlimit != -1 ) {
-                       ldap_set_option( lsc->ld, LDAP_OPT_TIMELIMIT,
-                                       ( void * )&op->oq_search.rs_tlimit);
+               if ( op->ors_tlimit != SLAP_NO_LIMIT ) {
+                       ldap_set_option( lsc->msc_ld, LDAP_OPT_TIMELIMIT,
+                                       ( void * )&op->ors_tlimit);
                }
-               if ( op->oq_search.rs_slimit != -1 ) {
-                       ldap_set_option( lsc->ld, LDAP_OPT_SIZELIMIT,
-                                       ( void * )&op->oq_search.rs_slimit);
+               if ( op->ors_slimit != SLAP_NO_LIMIT ) {
+                       ldap_set_option( lsc->msc_ld, LDAP_OPT_SIZELIMIT,
+                                       ( void * )&op->ors_slimit);
                }
 
-               dc.rwmap = &li->targets[ i ]->rwmap;
+               dc.rwmap = &li->targets[ i ]->mt_rwmap;
 
                /*
                 * modifies the base according to the scope, if required
                 */
-               suffixlen = li->targets[ i ]->suffix.bv_len;
+               suffixlen = li->targets[ i ]->mt_nsuffix.bv_len;
                if ( suffixlen > op->o_req_ndn.bv_len ) {
-                       switch ( op->oq_search.rs_scope ) {
+                       switch ( op->ors_scope ) {
                        case LDAP_SCOPE_SUBTREE:
                                /*
                                 * make the target suffix the new base
@@ -256,9 +134,11 @@ meta_back_search( Operation *op, SlapReply *rs )
                                 * illegal bases may be turned into 
                                 * the suffix of the target.
                                 */
-                               if ( dnIsSuffix( &li->targets[ i ]->suffix,
+                               if ( dnIsSuffix( &li->targets[ i ]->mt_nsuffix,
                                                &op->o_req_ndn ) ) {
-                                       realbase = li->targets[ i ]->suffix;
+                                       realbase = li->targets[ i ]->mt_nsuffix;
+                                       is_scope++;
+
                                } else {
                                        /*
                                         * this target is no longer candidate
@@ -269,18 +149,23 @@ meta_back_search( Operation *op, SlapReply *rs )
                                break;
 
                        case LDAP_SCOPE_ONELEVEL:
-                               if ( is_one_level_rdn( li->targets[ i ]->suffix.bv_val,
-                                               suffixlen - op->o_req_ndn.bv_len - 1 ) 
-                       && dnIsSuffix( &li->targets[ i ]->suffix, &op->o_req_ndn ) ) {
+                       {
+                               struct berval   rdn = li->targets[ i ]->mt_nsuffix;
+                               rdn.bv_len -= op->o_req_ndn.bv_len + STRLENOF( "," );
+                               if ( dnIsOneLevelRDN( &rdn )
+                                               && dnIsSuffix( &li->targets[ i ]->mt_nsuffix, &op->o_req_ndn ) )
+                               {
                                        /*
                                         * if there is exactly one level,
                                         * make the target suffix the new
                                         * base, and make scope "base"
                                         */
-                                       realbase = li->targets[ i ]->suffix;
+                                       realbase = li->targets[ i ]->mt_nsuffix;
                                        realscope = LDAP_SCOPE_BASE;
+                                       is_scope++;
                                        break;
                                } /* else continue with the next case */
+                       }
 
                        case LDAP_SCOPE_BASE:
                                /*
@@ -290,6 +175,8 @@ meta_back_search( Operation *op, SlapReply *rs )
                                goto new_candidate;
                        }
 
+               } else {
+                       is_scope++;
                }
 
                /*
@@ -327,9 +214,17 @@ meta_back_search( Operation *op, SlapReply *rs )
                 * Maps filter
                 */
                rc = ldap_back_filter_map_rewrite( &dc,
-                               op->oq_search.rs_filter,
+                               op->ors_filter,
                                &mfilter, BACKLDAP_MAP );
-               if ( rc != 0 ) {
+               switch ( rc ) {
+               case LDAP_SUCCESS:
+                       is_filter++;
+                       break;
+
+               case LDAP_COMPARE_FALSE:
+                       rc = 0;
+
+               default:
                        /*
                         * this target is no longer candidate
                         */
@@ -340,8 +235,8 @@ meta_back_search( Operation *op, SlapReply *rs )
                /*
                 * Maps required attributes
                 */
-               rc = ldap_back_map_attrs( &li->targets[ i ]->rwmap.rwm_at,
-                               op->oq_search.rs_attrs, BACKLDAP_MAP,
+               rc = ldap_back_map_attrs( &li->targets[ i ]->mt_rwmap.rwm_at,
+                               op->ors_attrs, BACKLDAP_MAP,
                                &mapped_attrs );
                if ( rc != LDAP_SUCCESS ) {
                        /*
@@ -354,26 +249,28 @@ meta_back_search( Operation *op, SlapReply *rs )
                /*
                 * Starts the search
                 */
-               msgid[ i ] = ldap_search( lsc->ld, mbase.bv_val, realscope,
-                               mfilter.bv_val, mapped_attrs,
-                               op->oq_search.rs_attrsonly ); 
+               rc = ldap_search_ext( lsc->msc_ld,
+                               mbase.bv_val, realscope, mfilter.bv_val,
+                               mapped_attrs, op->ors_attrsonly,
+                               op->o_ctrls, NULL,
+                               NULL, op->ors_slimit, &msgid[ i ] ); 
                if ( mapped_attrs ) {
                        free( mapped_attrs );
                        mapped_attrs = NULL;
                }
-               if ( mfilter.bv_val != op->oq_search.rs_filterstr.bv_val ) {
+               if ( mfilter.bv_val != op->ors_filterstr.bv_val ) {
                        free( mfilter.bv_val );
-                       mfilter.bv_val = NULL;
+                       BER_BVZERO( &mfilter );
                }
                if ( mbase.bv_val != realbase.bv_val ) {
                        free( mbase.bv_val );
-                       mbase.bv_val = NULL;
+                       BER_BVZERO( &mbase );
                }
 
-               if ( msgid[ i ] == -1 ) {
+               if ( rc != LDAP_SUCCESS ) {
                        continue;
                }
-
+               
                ++candidates;
 
 new_candidate:;
@@ -399,19 +296,19 @@ new_candidate:;
                /* check for abandon */
                ab = op->o_abandon;
 
-               for ( i = 0, lsc = lc->conns; !META_LAST(lsc); lsc++, i++ ) {
+               for ( i = 0, lsc = lc->mc_conns; !META_LAST( lsc ); lsc++, i++ ) {
                        if ( msgid[ i ] == -1 ) {
                                continue;
                        }
                        
                        if ( ab ) {
-                               ldap_abandon( lsc->ld, msgid[ i ] );
-                               rc = 0;
+                               ldap_abandon_ext( lsc->msc_ld, msgid[ i ], NULL, NULL );
+                               rc = SLAPD_ABANDON;
                                break;
                        }
 
-                       if ( op->oq_search.rs_slimit > 0
-                                       && rs->sr_nentries == op->oq_search.rs_slimit ) {
+                       if ( op->ors_slimit > 0
+                                       && rs->sr_nentries == op->ors_slimit ) {
                                rs->sr_err = LDAP_SIZELIMIT_EXCEEDED;
                                rs->sr_v2ref = v2refs;
                                send_ldap_result( op, rs );
@@ -425,13 +322,19 @@ new_candidate:;
                         * get a LDAP_TIMELIMIT_EXCEEDED from
                         * one of them ...
                         */
-                       rc = ldap_result( lsc->ld, msgid[ i ],
+                       rc = ldap_result( lsc->msc_ld, msgid[ i ],
                                        0, &tv, &res );
 
                        if ( rc == 0 ) {
+                               /* timeout exceeded */
+
+                               /* FIXME: res should not need to be freed */
+                               assert( res == NULL );
+
                                continue;
 
                        } else if ( rc == -1 ) {
+really_bad:;
                                /* something REALLY bad happened! */
                                ( void )meta_clear_unused_candidates( li,
                                                lc, -1, 0 );
@@ -440,12 +343,19 @@ new_candidate:;
                                send_ldap_result( op, rs );
                                
                                /* anything else needs be done? */
+
+                               /* FIXME: res should not need to be freed */
+                               assert( res == NULL );
+
                                goto finish;
 
                        } else if ( rc == LDAP_RES_SEARCH_ENTRY ) {
-                               e = ldap_first_entry( lsc->ld, res );
+                               e = ldap_first_entry( lsc->msc_ld, res );
                                meta_send_entry( op, rs, lc, i, e );
 
+                               ldap_msgfree( res );
+                               res = NULL;
+
                                /*
                                 * If scope is BASE, we need to jump out
                                 * as soon as one entry is found; if
@@ -453,26 +363,22 @@ new_candidate:;
                                 * this should correspond to the sole
                                 * entry that has the base DN
                                 */
-                               if ( op->oq_search.rs_scope == LDAP_SCOPE_BASE
+                               if ( op->ors_scope == LDAP_SCOPE_BASE
                                                && rs->sr_nentries > 0 ) {
                                        candidates = 0;
                                        sres = LDAP_SUCCESS;
                                        break;
                                }
-                               ldap_msgfree( res );
+
                                gotit = 1;
 
                        } else if ( rc == LDAP_RES_SEARCH_REFERENCE ) {
                                char            **references = NULL;
                                int             cnt;
 
-                               /*
-                                * FIXME: should we collect references
-                                * and send them alltogether at the end?
-                                */
-
-                               rc = ldap_parse_reference( lsc->ld, res,
+                               rc = ldap_parse_reference( lsc->msc_ld, res,
                                                &references, &rs->sr_ctrls, 1 );
+                               res = NULL;
 
                                if ( rc != LDAP_SUCCESS ) {
                                        continue;
@@ -482,24 +388,35 @@ new_candidate:;
                                        continue;
                                }
 
+#ifdef ENABLE_REWRITE
+                               dc.ctx = "referralDN";
+#else /* ! ENABLE_REWRITE */
+                               dc.tofrom = 0;
+                               dc.normalized = 0;
+#endif /* ! ENABLE_REWRITE */
                                for ( cnt = 0; references[ cnt ]; cnt++ )
-                                       /* NO OP */ ;
-                               
-                               rs->sr_ref = ch_calloc( cnt + 1, sizeof( struct berval ) );
+                                       ;
+
+                               rs->sr_ref = ch_calloc( sizeof( struct berval ), cnt + 1 );
 
                                for ( cnt = 0; references[ cnt ]; cnt++ ) {
-                                       rs->sr_ref[ cnt ].bv_val = references[ cnt ];
-                                       rs->sr_ref[ cnt ].bv_len = strlen( references[ cnt ] );
+                                       ber_str2bv( references[ cnt ], 0, 1, &rs->sr_ref[ cnt ] );
                                }
+                               BER_BVZERO( &rs->sr_ref[ cnt ] );
 
-                               /* ignore return value by now */
-                               ( void )send_search_reference( op, rs );
+                               ( void )ldap_back_referral_result_rewrite( &dc, rs->sr_ref );
+
+                               if ( rs->sr_ref != NULL && !BER_BVISNULL( &rs->sr_ref[ 0 ] ) ) {
+                                       /* ignore return value by now */
+                                       ( void )send_search_reference( op, rs );
+
+                                       ber_bvarray_free( rs->sr_ref );
+                                       rs->sr_ref = NULL;
+                               }
 
                                /* cleanup */
                                if ( references ) {
                                        ldap_value_free( references );
-                                       ch_free( rs->sr_ref );
-                                       rs->sr_ref = NULL;
                                }
 
                                if ( rs->sr_ctrls ) {
@@ -508,31 +425,31 @@ new_candidate:;
                                }
 
                        } else {
-                               rs->sr_err = ldap_result2error( lsc->ld,
-                                               res, 1 );
-                               sres = ldap_back_map_result( rs );
+                               if ( ldap_parse_result( lsc->msc_ld, res,
+                                                       &rs->sr_err,
+                                                       NULL, NULL, NULL, NULL, 1 ) )
+                               {
+                                       res = NULL;
+                                       goto really_bad;
+                               }
+                               res = NULL;
+
+                               sres = slap_map_api2result( rs );
                                if ( err != NULL ) {
                                        free( err );
                                }
-                               ldap_get_option( lsc->ld,
+                               ldap_get_option( lsc->msc_ld,
                                                LDAP_OPT_ERROR_STRING, &err );
                                if ( match.bv_val != NULL ) {
                                        free( match.bv_val );
                                }
-                               ldap_get_option( lsc->ld,
+                               ldap_get_option( lsc->msc_ld,
                                                LDAP_OPT_MATCHED_DN, &match.bv_val );
 
-#ifdef NEW_LOGGING
-                               LDAP_LOG( BACK_META, ERR,
-                                       "meta_back_search [%d] "
-                                       "match=\"%s\" err=\"%s\"\n",
-                                       i, match.bv_val, err );
-#else /* !NEW_LOGGING */
                                Debug( LDAP_DEBUG_ANY,
                                        "=>meta_back_search [%d] "
                                        "match=\"%s\" err=\"%s\"\n",
                                        i, match.bv_val, err ); 
-#endif /* !NEW_LOGGING */
                                candidate_match++;
                                last = i;
                                rc = 0;
@@ -552,8 +469,9 @@ new_candidate:;
 
                if ( gotit == 0 ) {
                        tv.tv_sec = 0;
-                        tv.tv_usec = 100000;
+                        tv.tv_usec = 100000;   /* 0.1 s */
                         ldap_pvt_thread_yield();
+
                } else {
                        tv.tv_sec = 0;
                        tv.tv_usec = 0;
@@ -575,8 +493,8 @@ new_candidate:;
         */
        if ( candidate_match == initial_candidates
                        && match.bv_val != NULL && *match.bv_val ) {
-               dc.ctx = "matchedDn";
-               dc.rwmap = &li->targets[ last ]->rwmap;
+               dc.ctx = "matchedDN";
+               dc.rwmap = &li->targets[ last ]->mt_rwmap;
 
                if ( ldap_back_dn_massage( &dc, &match, &mmatch ) ) {
                        mmatch.bv_val = NULL;
@@ -590,6 +508,10 @@ new_candidate:;
         * FIXME: we should handle error codes and return the more 
         * important/reasonable
         */
+       if ( is_scope == 0 ) {
+               sres = LDAP_NO_SUCH_OBJECT;
+       }
+
        if ( sres == LDAP_SUCCESS && v2refs ) {
                sres = LDAP_REFERRAL;
        }
@@ -631,10 +553,9 @@ meta_send_entry(
 {
        struct metainfo         *li = ( struct metainfo * )op->o_bd->be_private;
        struct berval           a, mapped;
-       Entry                   ent;
+       Entry                   ent = {0};
        BerElement              ber = *e->lm_ber;
        Attribute               *attr, **attrp;
-       struct berval           dummy = { 0, NULL };
        struct berval           *bv, bdn;
        const char              *text;
        dncookie                dc;
@@ -646,7 +567,7 @@ meta_send_entry(
        /*
         * Rewrite the dn of the result, if needed
         */
-       dc.rwmap = &li->targets[ target ]->rwmap;
+       dc.rwmap = &li->targets[ target ]->mt_rwmap;
        dc.conn = op->o_conn;
        dc.rs = rs;
        dc.ctx = "searchResult";
@@ -664,7 +585,7 @@ meta_send_entry(
         * FIXME: should we log anything, or delegate to dnNormalize?
         */
        if ( dnNormalize( 0, NULL, NULL, &ent.e_name, &ent.e_nname,
-               &op->o_tmpmemctx ) != LDAP_SUCCESS )
+               op->o_tmpmemctx ) != LDAP_SUCCESS )
        {
                return LDAP_INVALID_DN_SYNTAX;
        }
@@ -677,14 +598,13 @@ meta_send_entry(
                                &ent.e_nname, target );
        }
 
-       ent.e_id = 0;
-       ent.e_attrs = 0;
-       ent.e_private = 0;
        attrp = &ent.e_attrs;
 
        dc.ctx = "searchAttrDN";
        while ( ber_scanf( &ber, "{m", &a ) != LBER_ERROR ) {
-               ldap_back_map( &li->targets[ target ]->rwmap.rwm_at, 
+               int             last = 0;
+
+               ldap_back_map( &li->targets[ target ]->mt_rwmap.rwm_at, 
                                &a, &mapped, BACKLDAP_REMAP );
                if ( mapped.bv_val == NULL || mapped.bv_val[0] == '\0' ) {
                        continue;
@@ -700,14 +620,9 @@ meta_send_entry(
                                != LDAP_SUCCESS) {
                        if ( slap_bv2undef_ad( &mapped, &attr->a_desc, &text ) 
                                        != LDAP_SUCCESS) {
-#ifdef NEW_LOGGING
-                               LDAP_LOG( BACK_META, DETAIL1,
-                                       "slap_bv2undef_ad(%s): %s\n", mapped.bv_val, text, 0 );
-#else /* !NEW_LOGGING */
                                Debug( LDAP_DEBUG_ANY,
                                                "slap_bv2undef_ad(%s): "
                                                "%s\n%s", mapped.bv_val, text, "" );
-#endif /* !NEW_LOGGING */
                                ch_free( attr );
                                continue;
                        }
@@ -731,16 +646,15 @@ meta_send_entry(
 
                if ( ber_scanf( &ber, "[W]", &attr->a_vals ) == LBER_ERROR 
                                || attr->a_vals == NULL ) {
-                       attr->a_vals = &dummy;
+                       attr->a_vals = (struct berval *)&slap_dummy_bv;
 
                } else if ( attr->a_desc == slap_schema.si_ad_objectClass
                                || attr->a_desc == slap_schema.si_ad_structuralObjectClass ) {
-                       int             last;
 
                        for ( last = 0; attr->a_vals[ last ].bv_val; ++last );
 
                        for ( bv = attr->a_vals; bv->bv_val; bv++ ) {
-                               ldap_back_map( &li->targets[ target ]->rwmap.rwm_oc,
+                               ldap_back_map( &li->targets[ target ]->mt_rwmap.rwm_oc,
                                                bv, &mapped, BACKLDAP_REMAP );
                                if ( mapped.bv_val == NULL || mapped.bv_val[0] == '\0') {
                                        free( bv->bv_val );
@@ -769,22 +683,46 @@ meta_send_entry(
                 * everything pass thru the ldap backend.
                 */
                } else if ( attr->a_desc->ad_type->sat_syntax ==
-                               slap_schema.si_syn_distinguishedName ) {
+                               slap_schema.si_syn_distinguishedName )
+               {
                        ldap_dnattr_result_rewrite( &dc, attr->a_vals );
+
+               } else if ( attr->a_desc == slap_schema.si_ad_ref ) {
+                       ldap_back_referral_result_rewrite( &dc, attr->a_vals );
+               }
+
+               if ( last && attr->a_desc->ad_type->sat_equality &&
+                       attr->a_desc->ad_type->sat_equality->smr_normalize ) {
+                       int i;
+
+                       attr->a_nvals = ch_malloc((last + 1)*sizeof(struct berval));
+                       for ( i = 0; i<last; i++ ) {
+                               attr->a_desc->ad_type->sat_equality->smr_normalize(
+                                       SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+                                       attr->a_desc->ad_type->sat_syntax,
+                                       attr->a_desc->ad_type->sat_equality,
+                                       &attr->a_vals[i], &attr->a_nvals[i],
+                                       NULL );
+                       }
+                       attr->a_nvals[i].bv_val = NULL;
+                       attr->a_nvals[i].bv_len = 0;
+               } else {
+                       attr->a_nvals = attr->a_vals;
                }
 
                *attrp = attr;
                attrp = &attr->a_next;
        }
        rs->sr_entry = &ent;
-       rs->sr_attrs = op->oq_search.rs_attrs;
+       rs->sr_attrs = op->ors_attrs;
+       rs->sr_flags = 0;
        send_search_entry( op, rs );
        rs->sr_entry = NULL;
        rs->sr_attrs = NULL;
        while ( ent.e_attrs ) {
                attr = ent.e_attrs;
                ent.e_attrs = attr->a_next;
-               if ( attr->a_vals != &dummy ) {
+               if ( attr->a_vals != &slap_dummy_bv ) {
                        ber_bvarray_free( attr->a_vals );
                }
                free( attr );
@@ -800,18 +738,4 @@ meta_send_entry(
        return LDAP_SUCCESS;
 }
 
-static int
-is_one_level_rdn(
-               const char      *rdn,
-               int             from
-)
-{
-       for ( ; from--; ) {
-               if ( DN_SEPARATOR( rdn[ from ] ) ) {
-                       return 0;
-               }
-       }
-
-       return 1;
-}