X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=inline;f=servers%2Fslapd%2Foverlays%2Frwmmap.c;h=ad03d87effddc4ccf1c98be167fff91dedb434f3;hb=996be22a8c966521eb8e277a95051be317de247f;hp=9d79679be31ccc694c49d70f784e5e74b5bb1e0b;hpb=22bd2667ce0b627bf6c07d88c82d66ae82a4de13;p=openldap

diff --git a/servers/slapd/overlays/rwmmap.c b/servers/slapd/overlays/rwmmap.c
index 9d79679be3..ad03d87eff 100644
--- a/servers/slapd/overlays/rwmmap.c
+++ b/servers/slapd/overlays/rwmmap.c
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1999-2004 The OpenLDAP Foundation.
+ * Copyright 1999-2008 The OpenLDAP Foundation.
  * Portions Copyright 1999-2003 Howard Chu.
  * Portions Copyright 2000-2003 Pierangelo Masarati.
  * All rights reserved.
@@ -71,29 +71,35 @@ rwm_map_init( struct ldapmap *lm, struct ldapmapping **m )
 	const char		*text;
 	int			rc;
 
-	assert( m );
+	assert( m != NULL );
 
 	*m = NULL;
 	
 	mapping = (struct ldapmapping *)ch_calloc( 2, 
 			sizeof( struct ldapmapping ) );
 	if ( mapping == NULL ) {
-		return;
+		return LDAP_NO_MEMORY;
 	}
 
-	rc = slap_str2ad( "objectClass", &mapping->m_src_ad, &text );
+	/* NOTE: this is needed to make sure that
+	 *	rwm-map attribute *
+	 * does not  filter out all attributes including objectClass */
+	rc = slap_str2ad( "objectClass", &mapping[0].m_src_ad, &text );
 	if ( rc != LDAP_SUCCESS ) {
+		ch_free( mapping );
 		return rc;
 	}
 
-	mapping->m_dst_ad = mapping->m_src_ad;
-	ber_dupbv( &mapping->m_dst, &mapping->m_src_ad->ad_cname );
-	ber_dupbv( &mapping->m_dst, &mapping->m_src );
+	mapping[0].m_dst_ad = mapping[0].m_src_ad;
+	ber_dupbv( &mapping[0].m_src, &mapping[0].m_src_ad->ad_cname );
+	ber_dupbv( &mapping[0].m_dst, &mapping[0].m_src );
 
-	mapping[1].m_src = mapping->m_src;
-	mapping[1].m_dst = mapping->m_dst;
+	mapping[1].m_src = mapping[0].m_src;
+	mapping[1].m_dst = mapping[0].m_dst;
+	mapping[1].m_src_ad = mapping[0].m_src_ad;
+	mapping[1].m_dst_ad = mapping[1].m_src_ad;
 
-	avl_insert( &lm->map, (caddr_t)mapping, 
+	avl_insert( &lm->map, (caddr_t)&mapping[0], 
 			rwm_mapping_cmp, rwm_mapping_dup );
 	avl_insert( &lm->remap, (caddr_t)&mapping[1], 
 			rwm_mapping_cmp, rwm_mapping_dup );
@@ -109,7 +115,11 @@ rwm_mapping( struct ldapmap *map, struct berval *s, struct ldapmapping **m, int
 	Avlnode *tree;
 	struct ldapmapping fmapping;
 
-	assert( m );
+	if ( map == NULL ) {
+		return 0;
+	}
+
+	assert( m != NULL );
 
 	if ( remap == RWM_REMAP ) {
 		tree = map->remap;
@@ -134,8 +144,15 @@ rwm_map( struct ldapmap *map, struct berval *s, struct berval *bv, int remap )
 {
 	struct ldapmapping *mapping;
 
+	/* map->map may be NULL when mapping is configured,
+	 * but map->remap can't */
+	if ( map->remap == NULL ) {
+		*bv = *s;
+		return;
+	}
+
 	BER_BVZERO( bv );
-	rwm_mapping( map, s, &mapping, remap );
+	( void )rwm_mapping( map, s, &mapping, remap );
 	if ( mapping != NULL ) {
 		if ( !BER_BVISNULL( &mapping->m_dst ) ) {
 			*bv = mapping->m_dst;
@@ -153,15 +170,18 @@ rwm_map( struct ldapmap *map, struct berval *s, struct berval *bv, int remap )
  */
 int
 rwm_map_attrnames(
-		struct ldapmap *at_map,
-		struct ldapmap *oc_map,
-		AttributeName *an,
-		AttributeName **anp,
-		int remap
-)
+	struct ldapmap	*at_map,
+	struct ldapmap	*oc_map,
+	AttributeName	*an,
+	AttributeName	**anp,
+	int		remap )
 {
 	int		i, j;
 
+	assert( anp != NULL );
+
+	*anp = NULL;
+
 	if ( an == NULL ) {
 		return LDAP_SUCCESS;
 	}
@@ -169,6 +189,9 @@ rwm_map_attrnames(
 	for ( i = 0; !BER_BVISNULL( &an[i].an_name ); i++ )
 		/* just count */ ;
 	*anp = ch_malloc( ( i + 1 )* sizeof( AttributeName ) );
+	if ( *anp == NULL ) {
+		return LDAP_NO_MEMORY;
+	}
 
 	for ( i = 0, j = 0; !BER_BVISNULL( &an[i].an_name ); i++ ) {
 		struct ldapmapping	*m;
@@ -236,7 +259,6 @@ rwm_map_attrnames(
 			at_drop_missing = rwm_mapping( at_map, &an[i].an_name, &m, remap );
 		
 			if ( at_drop_missing || !m ) {
-
 				oc_drop_missing = rwm_mapping( oc_map, &an[i].an_name, &m, remap );
 
 				/* if both at_map and oc_map required to drop missing,
@@ -291,6 +313,7 @@ rwm_map_attrnames(
 	if ( j == 0 && i != 0 ) {
 		memset( &(*anp)[0], 0, sizeof( AttributeName ) );
 		BER_BVSTR( &(*anp)[0].an_name, LDAP_NO_ATTRS );
+		j = 1;
 	}
 	memset( &(*anp)[j], 0, sizeof( AttributeName ) );
 
@@ -299,11 +322,10 @@ rwm_map_attrnames(
 
 int
 rwm_map_attrs(
-		struct ldapmap *at_map,
-		AttributeName *an,
-		int remap,
-		char ***mapped_attrs
-)
+	struct ldapmap	*at_map,
+	AttributeName	*an,
+	int		remap,
+	char		***mapped_attrs )
 {
 	int i, j;
 	char **na;
@@ -313,209 +335,251 @@ rwm_map_attrs(
 		return LDAP_SUCCESS;
 	}
 
-	for ( i = 0; !BER_BVISNULL( &an[i].an_name ); i++ ) {
-		/*  */
-	}
+	for ( i = 0; !BER_BVISNULL( &an[ i ].an_name ); i++ )
+		/* count'em */ ;
 
 	na = (char **)ch_calloc( i + 1, sizeof( char * ) );
-	if (na == NULL) {
+	if ( na == NULL ) {
 		*mapped_attrs = NULL;
 		return LDAP_NO_MEMORY;
 	}
 
 	for ( i = j = 0; !BER_BVISNULL( &an[i].an_name ); i++ ) {
-		struct ldapmapping	*m;
+		struct ldapmapping	*mapping;
 		
-		if ( rwm_mapping( at_map, &an[i].an_name, &m, remap ) ) {
+		if ( rwm_mapping( at_map, &an[i].an_name, &mapping, remap ) ) {
 			continue;
 		}
 
-		if ( !m || ( m && !BER_BVISNULL( &m->m_dst ) ) ) {
-			na[j++] = m->m_dst.bv_val;
+		if ( !mapping ) {
+			na[ j++ ] = an[ i ].an_name.bv_val;
+			
+		} else if ( !BER_BVISNULL( &mapping->m_dst ) ) {
+			na[ j++ ] = mapping->m_dst.bv_val;
 		}
 	}
+
 	if ( j == 0 && i != 0 ) {
-		na[j++] = LDAP_NO_ATTRS;
+		na[ j++ ] = LDAP_NO_ATTRS;
 	}
-	na[j] = NULL;
+
+	na[ j ] = NULL;
 
 	*mapped_attrs = na;
+
 	return LDAP_SUCCESS;
 }
 
 static int
 map_attr_value(
-		dncookie		*dc,
-		AttributeDescription 	*ad,
-		struct berval		*mapped_attr,
-		struct berval		*value,
-		struct berval		*mapped_value,
-		int			remap )
+	dncookie		*dc,
+	AttributeDescription 	**adp,
+	struct berval		*mapped_attr,
+	struct berval		*value,
+	struct berval		*mapped_value,
+	int			remap )
 {
-	struct berval		vtmp;
+	struct berval		vtmp = BER_BVNULL;
 	int			freeval = 0;
+	AttributeDescription	*ad = *adp;
+	struct ldapmapping	*mapping = NULL;
 
-	rwm_map( &dc->rwmap->rwm_at, &ad->ad_cname, mapped_attr, remap );
-	if ( BER_BVISNULL( mapped_attr ) || BER_BVISEMPTY( mapped_attr ) ) {
-		/*
-		 * FIXME: are we sure we need to search oc_map if at_map fails?
-		 */
-		rwm_map( &dc->rwmap->rwm_oc, &ad->ad_cname, mapped_attr, remap );
-		if ( BER_BVISNULL( mapped_attr ) || BER_BVISEMPTY( mapped_attr ) )
-		{
-			*mapped_attr = ad->ad_cname;
+	rwm_mapping( &dc->rwmap->rwm_at, &ad->ad_cname, &mapping, remap );
+	if ( mapping == NULL ) {
+		if ( dc->rwmap->rwm_at.drop_missing ) {
+			return -1;
 		}
-	}
 
-	if ( value == NULL ) {
-		return 0;
+		*mapped_attr = ad->ad_cname;
+
+	} else {
+		*mapped_attr = mapping->m_dst;
 	}
 
-	if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName )
-	{
-		dncookie 	fdc = *dc;
-		int		rc;
+	if ( value != NULL ) {
+		assert( mapped_value != NULL );
 
-#ifdef ENABLE_REWRITE
-		fdc.ctx = "searchFilterAttrDN";
-#endif
+		if ( ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName
+				|| ( mapping != NULL && mapping->m_dst_ad->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) )
+		{
+			dncookie 	fdc = *dc;
+			int		rc;
 
-		rc = rwm_dn_massage( &fdc, value, &vtmp, NULL );
-		switch ( rc ) {
-		case LDAP_SUCCESS:
-			if ( vtmp.bv_val != value->bv_val ) {
-				freeval = 1;
-			}
-			break;
+			fdc.ctx = "searchFilterAttrDN";
+
+			vtmp = *value;
+			rc = rwm_dn_massage_normalize( &fdc, value, &vtmp );
+			switch ( rc ) {
+			case LDAP_SUCCESS:
+				if ( vtmp.bv_val != value->bv_val ) {
+					freeval = 1;
+				}
+				break;
 		
-		case LDAP_UNWILLING_TO_PERFORM:
-		case LDAP_OTHER:
-		default:
-			return -1;
-		}
+			case LDAP_UNWILLING_TO_PERFORM:
+			case LDAP_OTHER:
+			default:
+				return -1;
+			}
 
-	} else if ( ad == slap_schema.si_ad_objectClass
-			|| ad == slap_schema.si_ad_structuralObjectClass )
-	{
-		rwm_map( &dc->rwmap->rwm_oc, value, &vtmp, remap );
-		if ( BER_BVISNULL( &vtmp ) || BER_BVISEMPTY( &vtmp ) ) {
+		} else if ( ad->ad_type->sat_equality->smr_usage & SLAP_MR_MUTATION_NORMALIZER ) {
+			if ( ad->ad_type->sat_equality->smr_normalize(
+				(SLAP_MR_DENORMALIZE|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX),
+				NULL, NULL, value, &vtmp, NULL ) )
+			{
+				return -1;
+			}
+			freeval = 1;
+
+		} else if ( ad == slap_schema.si_ad_objectClass
+				|| ad == slap_schema.si_ad_structuralObjectClass )
+		{
+			rwm_map( &dc->rwmap->rwm_oc, value, &vtmp, remap );
+			if ( BER_BVISNULL( &vtmp ) || BER_BVISEMPTY( &vtmp ) ) {
+				vtmp = *value;
+			}
+		
+		} else {
 			vtmp = *value;
 		}
-		
-	} else {
-		vtmp = *value;
-	}
 
-	filter_escape_value( &vtmp, mapped_value );
+		filter_escape_value( &vtmp, mapped_value );
 
-	if ( freeval ) {
-		ber_memfree( vtmp.bv_val );
+		if ( freeval ) {
+			ch_free( vtmp.bv_val );
+		}
 	}
 	
+	if ( mapping != NULL ) {
+		assert( mapping->m_dst_ad != NULL );
+		*adp = mapping->m_dst_ad;
+	}
+
 	return 0;
 }
 
 static int
 rwm_int_filter_map_rewrite(
-		dncookie		*dc,
-		Filter			*f,
-		struct berval		*fstr )
+	Operation		*op,
+	dncookie		*dc,
+	Filter			*f,
+	struct berval		*fstr )
 {
 	int		i;
 	Filter		*p;
+	AttributeDescription *ad;
 	struct berval	atmp,
 			vtmp,
-			tmp;
+			*tmp;
 	static struct berval
-			ber_bvfalse = BER_BVC( "(?=false)" ),
-			ber_bvtrue = BER_BVC( "(?=true)" ),
+			/* better than nothing... */
+			ber_bvfalse = BER_BVC( "(!(objectClass=*))" ),
+			ber_bvtf_false = BER_BVC( "(|)" ),
+			/* better than nothing... */
+			ber_bvtrue = BER_BVC( "(objectClass=*)" ),
+			ber_bvtf_true = BER_BVC( "(&)" ),
+#if 0
+			/* no longer needed; preserved for completeness */
 			ber_bvundefined = BER_BVC( "(?=undefined)" ),
+#endif
 			ber_bverror = BER_BVC( "(?=error)" ),
 			ber_bvunknown = BER_BVC( "(?=unknown)" ),
 			ber_bvnone = BER_BVC( "(?=none)" );
 	ber_len_t	len;
 
+	assert( fstr != NULL );
+	BER_BVZERO( fstr );
+
 	if ( f == NULL ) {
 		ber_dupbv( fstr, &ber_bvnone );
-		return -1;
+		return LDAP_OTHER;
 	}
 
-	switch ( f->f_choice ) {
+	if ( f->f_choice & SLAPD_FILTER_UNDEFINED ) {
+		goto computed;
+	}
+
+	switch ( f->f_choice & SLAPD_FILTER_MASK ) {
 	case LDAP_FILTER_EQUALITY:
-		if ( map_attr_value( dc, f->f_av_desc, &atmp,
+		ad = f->f_av_desc;
+		if ( map_attr_value( dc, &ad, &atmp,
 					&f->f_av_value, &vtmp, RWM_MAP ) )
 		{
-			return -1;
+			goto computed;
 		}
 
 		fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(=)" );
-		fstr->bv_val = malloc( fstr->bv_len + 1 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
-		ber_memfree( vtmp.bv_val );
+		ch_free( vtmp.bv_val );
 		break;
 
 	case LDAP_FILTER_GE:
-		if ( map_attr_value( dc, f->f_av_desc, &atmp,
+		ad = f->f_av_desc;
+		if ( map_attr_value( dc, &ad, &atmp,
 					&f->f_av_value, &vtmp, RWM_MAP ) )
 		{
-			return -1;
+			goto computed;
 		}
 
 		fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(>=)" );
-		fstr->bv_val = malloc( fstr->bv_len + 1 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s>=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
-		ber_memfree( vtmp.bv_val );
+		ch_free( vtmp.bv_val );
 		break;
 
 	case LDAP_FILTER_LE:
-		if ( map_attr_value( dc, f->f_av_desc, &atmp,
+		ad = f->f_av_desc;
+		if ( map_attr_value( dc, &ad, &atmp,
 					&f->f_av_value, &vtmp, RWM_MAP ) )
 		{
-			return -1;
+			goto computed;
 		}
 
 		fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(<=)" );
-		fstr->bv_val = malloc( fstr->bv_len + 1 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s<=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
-		ber_memfree( vtmp.bv_val );
+		ch_free( vtmp.bv_val );
 		break;
 
 	case LDAP_FILTER_APPROX:
-		if ( map_attr_value( dc, f->f_av_desc, &atmp,
+		ad = f->f_av_desc;
+		if ( map_attr_value( dc, &ad, &atmp,
 					&f->f_av_value, &vtmp, RWM_MAP ) )
 		{
-			return -1;
+			goto computed;
 		}
 
 		fstr->bv_len = atmp.bv_len + vtmp.bv_len + STRLENOF( "(~=)" );
-		fstr->bv_val = malloc( fstr->bv_len + 1 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s~=%s)",
-			atmp.bv_val, vtmp.bv_val );
+			atmp.bv_val, vtmp.bv_len ? vtmp.bv_val : "" );
 
-		ber_memfree( vtmp.bv_val );
+		ch_free( vtmp.bv_val );
 		break;
 
 	case LDAP_FILTER_SUBSTRINGS:
-		if ( map_attr_value( dc, f->f_sub_desc, &atmp,
+		ad = f->f_sub_desc;
+		if ( map_attr_value( dc, &ad, &atmp,
 					NULL, NULL, RWM_MAP ) )
 		{
-			return -1;
+			goto computed;
 		}
 
 		/* cannot be a DN ... */
 
 		fstr->bv_len = atmp.bv_len + STRLENOF( "(=*)" );
-		fstr->bv_val = malloc( fstr->bv_len + 128 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 128 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 			atmp.bv_val );
@@ -530,9 +594,9 @@ rwm_int_filter_map_rewrite(
 
 			snprintf( &fstr->bv_val[len - 2], vtmp.bv_len + 3,
 				/* "(attr=" */ "%s*)",
-				vtmp.bv_val );
+				vtmp.bv_len ? vtmp.bv_val : "" );
 
-			ber_memfree( vtmp.bv_val );
+			ch_free( vtmp.bv_val );
 		}
 
 		if ( f->f_sub_any != NULL ) {
@@ -545,8 +609,8 @@ rwm_int_filter_map_rewrite(
 
 				snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 					/* "(attr=[init]*[any*]" */ "%s*)",
-					vtmp.bv_val );
-				ber_memfree( vtmp.bv_val );
+					vtmp.bv_len ? vtmp.bv_val : "" );
+				ch_free( vtmp.bv_val );
 			}
 		}
 
@@ -560,22 +624,23 @@ rwm_int_filter_map_rewrite(
 
 			snprintf( &fstr->bv_val[len - 1], vtmp.bv_len + 3,
 				/* "(attr=[init*][any*]" */ "%s)",
-				vtmp.bv_val );
+				vtmp.bv_len ? vtmp.bv_val : "" );
 
-			ber_memfree( vtmp.bv_val );
+			ch_free( vtmp.bv_val );
 		}
 
 		break;
 
 	case LDAP_FILTER_PRESENT:
-		if ( map_attr_value( dc, f->f_desc, &atmp,
+		ad = f->f_desc;
+		if ( map_attr_value( dc, &ad, &atmp,
 					NULL, NULL, RWM_MAP ) )
 		{
-			return -1;
+			goto computed;
 		}
 
 		fstr->bv_len = atmp.bv_len + STRLENOF( "(=*)" );
-		fstr->bv_val = malloc( fstr->bv_len + 1 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s=*)",
 			atmp.bv_val );
@@ -585,25 +650,27 @@ rwm_int_filter_map_rewrite(
 	case LDAP_FILTER_OR:
 	case LDAP_FILTER_NOT:
 		fstr->bv_len = STRLENOF( "(%)" );
-		fstr->bv_val = malloc( fstr->bv_len + 128 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 128 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%c)",
 			f->f_choice == LDAP_FILTER_AND ? '&' :
 			f->f_choice == LDAP_FILTER_OR ? '|' : '!' );
 
 		for ( p = f->f_list; p != NULL; p = p->f_next ) {
+			int	rc;
+
 			len = fstr->bv_len;
 
-			if ( rwm_int_filter_map_rewrite( dc, p, &vtmp ) )
-			{
-				return -1;
+			rc = rwm_int_filter_map_rewrite( op, dc, p, &vtmp );
+			if ( rc != LDAP_SUCCESS ) {
+				return rc;
 			}
 			
 			fstr->bv_len += vtmp.bv_len;
 			fstr->bv_val = ch_realloc( fstr->bv_val, fstr->bv_len + 1 );
 
 			snprintf( &fstr->bv_val[len-1], vtmp.bv_len + 2, 
-				/*"("*/ "%s)", vtmp.bv_val );
+				/*"("*/ "%s)", vtmp.bv_len ? vtmp.bv_val : "" );
 
 			ch_free( vtmp.bv_val );
 		}
@@ -612,10 +679,11 @@ rwm_int_filter_map_rewrite(
 
 	case LDAP_FILTER_EXT: {
 		if ( f->f_mr_desc ) {
-			if ( map_attr_value( dc, f->f_mr_desc, &atmp,
+			ad = f->f_mr_desc;
+			if ( map_attr_value( dc, &ad, &atmp,
 						&f->f_mr_value, &vtmp, RWM_MAP ) )
 			{
-				return -1;
+				goto computed;
 			}
 
 		} else {
@@ -628,37 +696,51 @@ rwm_int_filter_map_rewrite(
 			( f->f_mr_dnattrs ? STRLENOF( ":dn" ) : 0 ) +
 			( f->f_mr_rule_text.bv_len ? f->f_mr_rule_text.bv_len + 1 : 0 ) +
 			vtmp.bv_len + STRLENOF( "(:=)" );
-		fstr->bv_val = malloc( fstr->bv_len + 1 );
+		fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
 
 		snprintf( fstr->bv_val, fstr->bv_len + 1, "(%s%s%s%s:=%s)",
 			atmp.bv_val,
 			f->f_mr_dnattrs ? ":dn" : "",
 			!BER_BVISEMPTY( &f->f_mr_rule_text ) ? ":" : "",
 			!BER_BVISEMPTY( &f->f_mr_rule_text ) ? f->f_mr_rule_text.bv_val : "",
-			vtmp.bv_val );
-		ber_memfree( vtmp.bv_val );
-		} break;
+			vtmp.bv_len ? vtmp.bv_val : "" );
+		ch_free( vtmp.bv_val );
+		break;
+	}
+
+	case -1:
+computed:;
+		filter_free_x( op, f, 0 );
+		f->f_choice = SLAPD_FILTER_COMPUTED;
+		f->f_result = SLAPD_COMPARE_UNDEFINED;
+		/* fallthru */
 
 	case SLAPD_FILTER_COMPUTED:
 		switch ( f->f_result ) {
 		case LDAP_COMPARE_FALSE:
-			tmp = ber_bvfalse;
+		/* FIXME: treat UNDEFINED as FALSE */
+		case SLAPD_COMPARE_UNDEFINED:
+			if ( dc->rwmap->rwm_flags & RWM_F_SUPPORT_T_F ) {
+				tmp = &ber_bvtf_false;
+				break;
+			}
+			tmp = &ber_bvfalse;
 			break;
 
 		case LDAP_COMPARE_TRUE:
-			tmp = ber_bvtrue;
-			break;
-			
-		case SLAPD_COMPARE_UNDEFINED:
-			tmp = ber_bvundefined;
+			if ( dc->rwmap->rwm_flags & RWM_F_SUPPORT_T_F ) {
+				tmp = &ber_bvtf_true;
+				break;
+			}
+			tmp = &ber_bvtrue;
 			break;
 			
 		default:
-			tmp = ber_bverror;
+			tmp = &ber_bverror;
 			break;
 		}
 
-		ber_dupbv( fstr, &tmp );
+		ber_dupbv( fstr, tmp );
 		break;
 		
 	default:
@@ -666,23 +748,23 @@ rwm_int_filter_map_rewrite(
 		break;
 	}
 
-	return 0;
+	return LDAP_SUCCESS;
 }
 
 int
 rwm_filter_map_rewrite(
-		dncookie		*dc,
-		Filter			*f,
-		struct berval		*fstr )
+	Operation		*op,
+	dncookie		*dc,
+	Filter			*f,
+	struct berval		*fstr )
 {
 	int		rc;
 	dncookie 	fdc;
 	struct berval	ftmp;
 
-	rc = rwm_int_filter_map_rewrite( dc, f, fstr );
+	rc = rwm_int_filter_map_rewrite( op, dc, f, fstr );
 
-#ifdef ENABLE_REWRITE
-	if ( rc != LDAP_SUCCESS ) {
+	if ( rc != 0 ) {
 		return rc;
 	}
 
@@ -693,25 +775,22 @@ rwm_filter_map_rewrite(
 
 	switch ( rewrite_session( fdc.rwmap->rwm_rw, fdc.ctx, 
 				( !BER_BVISEMPTY( &ftmp ) ? ftmp.bv_val : "" ), 
-				fdc.conn, &fstr->bv_val )) {
+				fdc.conn, &fstr->bv_val ) )
+	{
 	case REWRITE_REGEXEC_OK:
 		if ( !BER_BVISNULL( fstr ) ) {
 			fstr->bv_len = strlen( fstr->bv_val );
-			free( ftmp.bv_val );
+			if ( fstr->bv_val != ftmp.bv_val ) {
+				ch_free( ftmp.bv_val );
+			}
 
 		} else {
 			*fstr = ftmp;
 		}
 
-#ifdef NEW_LOGGING
-		LDAP_LOG( BACK_LDAP, DETAIL1, 
-			"[rw] %s: \"%s\" -> \"%s\"\n",
-			dc->ctx, ftmp.bv_val, fstr->bv_val );		
-#else /* !NEW_LOGGING */
 		Debug( LDAP_DEBUG_ARGS,
 			"[rw] %s: \"%s\" -> \"%s\"\n",
-			dc->ctx, ftmp.bv_val, fstr->bv_val );		
-#endif /* !NEW_LOGGING */
+			fdc.ctx, ftmp.bv_val, fstr->bv_val );		
 		rc = LDAP_SUCCESS;
 		break;
  		
@@ -732,7 +811,6 @@ rwm_filter_map_rewrite(
 		break;
 	}
 
-#endif /* ENABLE_REWRITE */
 	return rc;
 }
 
@@ -744,7 +822,7 @@ rwm_filter_map_rewrite(
  * routines may be macros with args
  */
 int
-rwm_dnattr_rewrite(
+rwm_referral_rewrite(
 	Operation		*op,
 	SlapReply		*rs,
 	void			*cookie,
@@ -758,38 +836,65 @@ rwm_dnattr_rewrite(
 	int			i, last;
 
 	dncookie		dc;
-	struct berval		dn, ndn, *pndn = NULL;
+	struct berval		dn = BER_BVNULL,
+				ndn = BER_BVNULL;
 
-	assert( a_vals );
+	assert( a_vals != NULL );
 
 	/*
-	 * Rewrite the bind dn if needed
+	 * Rewrite the dn if needed
 	 */
 	dc.rwmap = rwmap;
-#ifdef ENABLE_REWRITE
 	dc.conn = op->o_conn;
 	dc.rs = rs;
 	dc.ctx = (char *)cookie;
-#else
-	dc.tofrom = ((int *)cookie)[0];
-	dc.normalized = 0;
-#endif
 
-	for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ );
+	for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ )
+		;
+	last--;
+	
 	if ( pa_nvals != NULL ) {
-		pndn = &ndn;
-
 		if ( *pa_nvals == NULL ) {
-			*pa_nvals = ch_malloc( last * sizeof(struct berval) );
-			memset( *pa_nvals, 0, last * sizeof(struct berval) );
+			*pa_nvals = ch_malloc( ( last + 2 ) * sizeof(struct berval) );
+			memset( *pa_nvals, 0, ( last + 2 ) * sizeof(struct berval) );
 		}
 	}
-	last--;
 
 	for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
+		struct berval	olddn = BER_BVNULL,
+				oldval;
 		int		rc;
+		LDAPURLDesc	*ludp;
+
+		oldval = a_vals[i];
+		rc = ldap_url_parse( oldval.bv_val, &ludp );
+		if ( rc != LDAP_URL_SUCCESS ) {
+			/* leave attr untouched if massage failed */
+			if ( pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
+				ber_dupbv( &(*pa_nvals)[i], &oldval );
+			}
+			continue;
+		}
+
+		/* FIXME: URLs like "ldap:///dc=suffix" if passed
+		 * thru ldap_url_parse() and ldap_url_desc2str() 
+		 * get rewritten as "ldap:///dc=suffix??base";
+		 * we don't want this to occur... */
+		if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
+			ludp->lud_scope = LDAP_SCOPE_DEFAULT;
+		}
+
+		ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
+
+		dn = olddn;
+		if ( pa_nvals ) {
+			ndn = olddn;
+			rc = rwm_dn_massage_pretty_normalize( &dc, &olddn,
+					&dn, &ndn );
+		} else {
+			rc = rwm_dn_massage_pretty( &dc, &olddn, &dn );
+		}
 
-		rc = rwm_dn_massage( &dc, &a_vals[i], &dn, pndn );
 		switch ( rc ) {
 		case LDAP_UNWILLING_TO_PERFORM:
 			/*
@@ -812,21 +917,177 @@ rwm_dnattr_rewrite(
 			break;
 		
 		case LDAP_SUCCESS:
-			if ( !BER_BVISNULL( &dn ) && dn.bv_val != a_vals[i].bv_val ) {
-				ch_free( a_vals[i].bv_val );
-				a_vals[i] = dn;
+			if ( !BER_BVISNULL( &dn ) && dn.bv_val != olddn.bv_val ) {
+				char	*newurl;
+
+				ludp->lud_dn = dn.bv_val;
+				newurl = ldap_url_desc2str( ludp );
+				ludp->lud_dn = olddn.bv_val;
+				ch_free( dn.bv_val );
+				if ( newurl == NULL ) {
+					/* FIXME: leave attr untouched
+					 * even if ldap_url_desc2str failed...
+					 */
+					break;
+				}
+
+				ber_str2bv( newurl, 0, 1, &a_vals[i] );
+				LDAP_FREE( newurl );
+
 				if ( pa_nvals ) {
+					ludp->lud_dn = ndn.bv_val;
+					newurl = ldap_url_desc2str( ludp );
+					ludp->lud_dn = olddn.bv_val;
+					ch_free( ndn.bv_val );
+					if ( newurl == NULL ) {
+						/* FIXME: leave attr untouched
+						 * even if ldap_url_desc2str failed...
+						 */
+						ch_free( a_vals[i].bv_val );
+						a_vals[i] = oldval;
+						break;
+					}
+
 					if ( !BER_BVISNULL( &(*pa_nvals)[i] ) ) {
 						ch_free( (*pa_nvals)[i].bv_val );
 					}
-					(*pa_nvals)[i] = *pndn;
+					ber_str2bv( newurl, 0, 1, &(*pa_nvals)[i] );
+					LDAP_FREE( newurl );
 				}
+
+				ch_free( oldval.bv_val );
+				ludp->lud_dn = olddn.bv_val;
 			}
 			break;
 
 		default:
 			/* leave attr untouched if massage failed */
 			if ( pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
+				ber_dupbv( &(*pa_nvals)[i], &a_vals[i] );
+			}
+			break;
+		}
+		ldap_free_urldesc( ludp );
+	}
+	
+	return 0;
+}
+
+/*
+ * I don't like this much, but we need two different
+ * functions because different heap managers may be
+ * in use in back-ldap/meta to reduce the amount of
+ * calls to malloc routines, and some of the free()
+ * routines may be macros with args
+ */
+int
+rwm_dnattr_rewrite(
+	Operation		*op,
+	SlapReply		*rs,
+	void			*cookie,
+	BerVarray		a_vals,
+	BerVarray		*pa_nvals )
+{
+	slap_overinst		*on = (slap_overinst *) op->o_bd->bd_info;
+	struct ldaprwmap	*rwmap = 
+			(struct ldaprwmap *)on->on_bi.bi_private;
+
+	int			i, last;
+
+	dncookie		dc;
+	struct berval		dn = BER_BVNULL,
+				ndn = BER_BVNULL;
+	BerVarray		in;
+
+	if ( a_vals ) {
+		in = a_vals;
+
+	} else {
+		if ( pa_nvals == NULL || *pa_nvals == NULL ) {
+			return LDAP_OTHER;
+		}
+		in = *pa_nvals;
+	}
+
+	/*
+	 * Rewrite the dn if needed
+	 */
+	dc.rwmap = rwmap;
+	dc.conn = op->o_conn;
+	dc.rs = rs;
+	dc.ctx = (char *)cookie;
+
+	for ( last = 0; !BER_BVISNULL( &in[last] ); last++ );
+	last--;
+	if ( pa_nvals != NULL ) {
+		if ( *pa_nvals == NULL ) {
+			*pa_nvals = ch_malloc( ( last + 2 ) * sizeof(struct berval) );
+			memset( *pa_nvals, 0, ( last + 2 ) * sizeof(struct berval) );
+		}
+	}
+
+	for ( i = 0; !BER_BVISNULL( &in[i] ); i++ ) {
+		int		rc;
+
+		if ( a_vals ) {
+			dn = in[i];
+			if ( pa_nvals ) {
+				ndn = (*pa_nvals)[i];
+				rc = rwm_dn_massage_pretty_normalize( &dc, &in[i], &dn, &ndn );
+			} else {
+				rc = rwm_dn_massage_pretty( &dc, &in[i], &dn );
+			}
+		} else {
+			ndn = in[i];
+			rc = rwm_dn_massage_normalize( &dc, &in[i], &ndn );
+		}
+
+		switch ( rc ) {
+		case LDAP_UNWILLING_TO_PERFORM:
+			/*
+			 * FIXME: need to check if it may be considered 
+			 * legal to trim values when adding/modifying;
+			 * it should be when searching (e.g. ACLs).
+			 */
+			ch_free( in[i].bv_val );
+			if (last > i ) {
+				in[i] = in[last];
+				if ( a_vals && pa_nvals ) {
+					(*pa_nvals)[i] = (*pa_nvals)[last];
+				}
+			}
+			BER_BVZERO( &in[last] );
+			if ( a_vals && pa_nvals ) {
+				BER_BVZERO( &(*pa_nvals)[last] );
+			}
+			last--;
+			break;
+		
+		case LDAP_SUCCESS:
+			if ( a_vals ) {
+				if ( !BER_BVISNULL( &dn ) && dn.bv_val != a_vals[i].bv_val ) {
+					ch_free( a_vals[i].bv_val );
+					a_vals[i] = dn;
+
+					if ( pa_nvals ) {
+						if ( !BER_BVISNULL( &(*pa_nvals)[i] ) ) {
+							ch_free( (*pa_nvals)[i].bv_val );
+						}
+						(*pa_nvals)[i] = ndn;
+					}
+				}
+				
+			} else {
+				if ( !BER_BVISNULL( &ndn ) && ndn.bv_val != (*pa_nvals)[i].bv_val ) {
+					ch_free( (*pa_nvals)[i].bv_val );
+					(*pa_nvals)[i] = ndn;
+				}
+			}
+			break;
+
+		default:
+			/* leave attr untouched if massage failed */
+			if ( a_vals && pa_nvals && BER_BVISNULL( &(*pa_nvals)[i] ) ) {
 				dnNormalize( 0, NULL, NULL, &a_vals[i], &(*pa_nvals)[i], NULL );
 			}
 			break;
@@ -836,11 +1097,88 @@ rwm_dnattr_rewrite(
 	return 0;
 }
 
+int
+rwm_referral_result_rewrite(
+	dncookie		*dc,
+	BerVarray		a_vals )
+{
+	int		i, last;
+
+	for ( last = 0; !BER_BVISNULL( &a_vals[last] ); last++ );
+	last--;
+
+	for ( i = 0; !BER_BVISNULL( &a_vals[i] ); i++ ) {
+		struct berval	dn,
+				olddn = BER_BVNULL;
+		int		rc;
+		LDAPURLDesc	*ludp;
+
+		rc = ldap_url_parse( a_vals[i].bv_val, &ludp );
+		if ( rc != LDAP_URL_SUCCESS ) {
+			/* leave attr untouched if massage failed */
+			continue;
+		}
+
+		/* FIXME: URLs like "ldap:///dc=suffix" if passed
+		 * thru ldap_url_parse() and ldap_url_desc2str()
+		 * get rewritten as "ldap:///dc=suffix??base";
+		 * we don't want this to occur... */
+		if ( ludp->lud_scope == LDAP_SCOPE_BASE ) {
+			ludp->lud_scope = LDAP_SCOPE_DEFAULT;
+		}
+
+		ber_str2bv( ludp->lud_dn, 0, 0, &olddn );
+
+		dn = olddn;
+		rc = rwm_dn_massage_pretty( dc, &olddn, &dn );
+		switch ( rc ) {
+		case LDAP_UNWILLING_TO_PERFORM:
+			/*
+			 * FIXME: need to check if it may be considered 
+			 * legal to trim values when adding/modifying;
+			 * it should be when searching (e.g. ACLs).
+			 */
+			ch_free( a_vals[i].bv_val );
+			if ( last > i ) {
+				a_vals[i] = a_vals[last];
+			}
+			BER_BVZERO( &a_vals[last] );
+			last--;
+			i--;
+			break;
+
+		default:
+			/* leave attr untouched if massage failed */
+			if ( !BER_BVISNULL( &dn ) && olddn.bv_val != dn.bv_val ) {
+				char	*newurl;
+
+				ludp->lud_dn = dn.bv_val;
+				newurl = ldap_url_desc2str( ludp );
+				if ( newurl == NULL ) {
+					/* FIXME: leave attr untouched
+					 * even if ldap_url_desc2str failed...
+					 */
+					break;
+				}
+
+				ch_free( a_vals[i].bv_val );
+				ber_str2bv( newurl, 0, 1, &a_vals[i] );
+				LDAP_FREE( newurl );
+				ludp->lud_dn = olddn.bv_val;
+			}
+			break;
+		}
+
+		ldap_free_urldesc( ludp );
+	}
+
+	return 0;
+}
+
 int
 rwm_dnattr_result_rewrite(
 	dncookie		*dc,
-	BerVarray		a_vals
-)
+	BerVarray		a_vals )
 {
 	int		i, last;
 
@@ -851,7 +1189,8 @@ rwm_dnattr_result_rewrite(
 		struct berval	dn;
 		int		rc;
 		
-		rc = rwm_dn_massage( dc, &a_vals[i], &dn, NULL );
+		dn = a_vals[i];
+		rc = rwm_dn_massage_pretty( dc, &a_vals[i], &dn );
 		switch ( rc ) {
 		case LDAP_UNWILLING_TO_PERFORM:
 			/*
@@ -859,7 +1198,7 @@ rwm_dnattr_result_rewrite(
 			 * legal to trim values when adding/modifying;
 			 * it should be when searching (e.g. ACLs).
 			 */
-			LBER_FREE( &a_vals[i].bv_val );
+			ch_free( a_vals[i].bv_val );
 			if ( last > i ) {
 				a_vals[i] = a_vals[last];
 			}
@@ -870,7 +1209,7 @@ rwm_dnattr_result_rewrite(
 		default:
 			/* leave attr untouched if massage failed */
 			if ( !BER_BVISNULL( &dn ) && a_vals[i].bv_val != dn.bv_val ) {
-				LBER_FREE( a_vals[i].bv_val );
+				ch_free( a_vals[i].bv_val );
 				a_vals[i] = dn;
 			}
 			break;
@@ -880,6 +1219,16 @@ rwm_dnattr_result_rewrite(
 	return 0;
 }
 
+void
+rwm_mapping_dst_free( void *v_mapping )
+{
+	struct ldapmapping *mapping = v_mapping;
+
+	if ( BER_BVISEMPTY( &mapping[0].m_dst ) ) {
+		rwm_mapping_free( &mapping[ -1 ] );
+	}
+}
+
 void
 rwm_mapping_free( void *v_mapping )
 {