+#ifdef LDAP_COMP_MATCH
+static int
+comp_list_candidates(
+ Operation *op,
+ BDB_LOCKER locker,
+ MatchingRuleAssertion* mra,
+ ComponentFilter *flist,
+ int ftype,
+ ID *ids,
+ ID *tmp,
+ ID *save )
+{
+ int rc = 0;
+ ComponentFilter *f;
+
+ Debug( LDAP_DEBUG_FILTER, "=> comp_list_candidates 0x%x\n", ftype, 0, 0 );
+ for ( f = flist; f != NULL; f = f->cf_next ) {
+ /* ignore precomputed scopes */
+ if ( f->cf_choice == SLAPD_FILTER_COMPUTED &&
+ f->cf_result == LDAP_SUCCESS ) {
+ continue;
+ }
+ BDB_IDL_ZERO( save );
+ rc = comp_candidates( op, locker, mra, f, save, tmp, save+BDB_IDL_UM_SIZE );
+
+ if ( rc != 0 ) {
+ if ( ftype == LDAP_COMP_FILTER_AND ) {
+ rc = 0;
+ continue;
+ }
+ break;
+ }
+
+ if ( ftype == LDAP_COMP_FILTER_AND ) {
+ if ( f == flist ) {
+ BDB_IDL_CPY( ids, save );
+ } else {
+ bdb_idl_intersection( ids, save );
+ }
+ if( BDB_IDL_IS_ZERO( ids ) )
+ break;
+ } else {
+ if ( f == flist ) {
+ BDB_IDL_CPY( ids, save );
+ } else {
+ bdb_idl_union( ids, save );
+ }
+ }
+ }
+
+ if( rc == LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_FILTER,
+ "<= comp_list_candidates: id=%ld first=%ld last=%ld\n",
+ (long) ids[0],
+ (long) BDB_IDL_FIRST(ids),
+ (long) BDB_IDL_LAST(ids) );
+
+ } else {
+ Debug( LDAP_DEBUG_FILTER,
+ "<= comp_list_candidates: undefined rc=%d\n",
+ rc, 0, 0 );
+ }
+
+ return rc;
+}
+
+static int
+comp_equality_candidates (
+ Operation *op,
+ BDB_LOCKER locker,
+ MatchingRuleAssertion *mra,
+ ComponentAssertion *ca,
+ ID *ids,
+ ID *tmp,
+ ID *stack)
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ DB *db;
+ int i;
+ int rc;
+ slap_mask_t mask;
+ struct berval prefix = {0, NULL};
+ struct berval *keys = NULL;
+ MatchingRule *mr = mra->ma_rule;
+ Syntax *sat_syntax;
+ ComponentReference* cr_list, *cr;
+ AttrInfo *ai;
+
+ BDB_IDL_ALL( bdb, ids );
+
+ if ( !ca->ca_comp_ref )
+ return 0;
+
+ ai = bdb_attr_mask( op->o_bd->be_private, mra->ma_desc );
+ if( ai ) {
+ cr_list = ai->ai_cr;
+ }
+ else {
+ return 0;
+ }
+ /* find a component reference to be indexed */
+ sat_syntax = ca->ca_ma_rule->smr_syntax;
+ for ( cr = cr_list ; cr ; cr = cr->cr_next ) {
+ if ( cr->cr_string.bv_len == ca->ca_comp_ref->cr_string.bv_len &&
+ strncmp( cr->cr_string.bv_val, ca->ca_comp_ref->cr_string.bv_val,cr->cr_string.bv_len ) == 0 )
+ break;
+ }
+
+ if ( !cr )
+ return 0;
+
+ rc = bdb_index_param( op->o_bd, mra->ma_desc, LDAP_FILTER_EQUALITY,
+ &db, &mask, &prefix );
+
+ if( rc != LDAP_SUCCESS ) {
+ return 0;
+ }
+
+ if( !mr ) {
+ return 0;
+ }
+
+ if( !mr->smr_filter ) {
+ return 0;
+ }
+
+ rc = (ca->ca_ma_rule->smr_filter)(
+ LDAP_FILTER_EQUALITY,
+ cr->cr_indexmask,
+ sat_syntax,
+ ca->ca_ma_rule,
+ &prefix,
+ &ca->ca_ma_value,
+ &keys, op->o_tmpmemctx );
+
+ if( rc != LDAP_SUCCESS ) {
+ return 0;
+ }
+
+ if( keys == NULL ) {
+ return 0;
+ }
+ for ( i= 0; keys[i].bv_val != NULL; i++ ) {
+ rc = bdb_key_read( op->o_bd, db, locker, &keys[i], tmp, NULL, 0 );
+
+ if( rc == DB_NOTFOUND ) {
+ BDB_IDL_ZERO( ids );
+ rc = 0;
+ break;
+ } else if( rc != LDAP_SUCCESS ) {
+ break;
+ }
+
+ if( BDB_IDL_IS_ZERO( tmp ) ) {
+ BDB_IDL_ZERO( ids );
+ break;
+ }
+
+ if ( i == 0 ) {
+ BDB_IDL_CPY( ids, tmp );
+ } else {
+ bdb_idl_intersection( ids, tmp );
+ }
+
+ if( BDB_IDL_IS_ZERO( ids ) )
+ break;
+ }
+ ber_bvarray_free_x( keys, op->o_tmpmemctx );
+
+ Debug( LDAP_DEBUG_TRACE,
+ "<= comp_equality_candidates: id=%ld, first=%ld, last=%ld\n",
+ (long) ids[0],
+ (long) BDB_IDL_FIRST(ids),
+ (long) BDB_IDL_LAST(ids) );
+ return( rc );
+}
+
+static int
+ava_comp_candidates (
+ Operation *op,
+ BDB_LOCKER locker,
+ AttributeAssertion *ava,
+ AttributeAliasing *aa,
+ ID *ids,
+ ID *tmp,
+ ID *stack )
+{
+ MatchingRuleAssertion mra;
+
+ mra.ma_rule = ava->aa_desc->ad_type->sat_equality;
+ if ( !mra.ma_rule ) {
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ BDB_IDL_ALL( bdb, ids );
+ return 0;
+ }
+ mra.ma_desc = aa->aa_aliased_ad;
+ mra.ma_rule = ava->aa_desc->ad_type->sat_equality;
+
+ return comp_candidates ( op, locker, &mra, ava->aa_cf, ids, tmp, stack );
+}
+
+static int
+comp_candidates (
+ Operation *op,
+ BDB_LOCKER locker,
+ MatchingRuleAssertion *mra,
+ ComponentFilter *f,
+ ID *ids,
+ ID *tmp,
+ ID *stack)
+{
+ int rc;
+
+ if ( !f ) return LDAP_PROTOCOL_ERROR;
+
+ Debug( LDAP_DEBUG_FILTER, "comp_candidates\n", 0, 0, 0 );
+ switch ( f->cf_choice ) {
+ case SLAPD_FILTER_COMPUTED:
+ rc = f->cf_result;
+ break;
+ case LDAP_COMP_FILTER_AND:
+ rc = comp_list_candidates( op, locker, mra, f->cf_and, LDAP_COMP_FILTER_AND, ids, tmp, stack );
+ break;
+ case LDAP_COMP_FILTER_OR:
+ rc = comp_list_candidates( op, locker, mra, f->cf_or, LDAP_COMP_FILTER_OR, ids, tmp, stack );
+ break;
+ case LDAP_COMP_FILTER_NOT:
+ /* No component indexing supported for NOT filter */
+ Debug( LDAP_DEBUG_FILTER, "\tComponent NOT\n", 0, 0, 0 );
+ {
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ BDB_IDL_ALL( bdb, ids );
+ }
+ rc = LDAP_PROTOCOL_ERROR;
+ break;
+ case LDAP_COMP_FILTER_ITEM:
+ rc = comp_equality_candidates( op, locker, mra, f->cf_ca, ids, tmp, stack );
+ break;
+ default:
+ {
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ BDB_IDL_ALL( bdb, ids );
+ }
+ rc = LDAP_PROTOCOL_ERROR;
+ }
+
+ return( rc );
+}
+#endif
+
+static int
+ext_candidates(
+ Operation *op,
+ BDB_LOCKER locker,
+ MatchingRuleAssertion *mra,
+ ID *ids,
+ ID *tmp,
+ ID *stack)
+{
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+
+#ifdef LDAP_COMP_MATCH
+ /*
+ * Currently Only Component Indexing for componentFilterMatch is supported
+ * Indexing for an extensible filter is not supported yet
+ */
+ if ( mra->ma_cf ) {
+ return comp_candidates ( op, locker, mra, mra->ma_cf, ids, tmp, stack);
+ }
+#endif
+ if ( mra->ma_desc == slap_schema.si_ad_entryDN ) {
+ int rc;
+ EntryInfo *ei;
+
+ BDB_IDL_ZERO( ids );
+ if ( mra->ma_rule == slap_schema.si_mr_distinguishedNameMatch ) {
+ ei = NULL;
+ rc = bdb_cache_find_ndn( op, locker, &mra->ma_value, &ei );
+ if ( rc == LDAP_SUCCESS )
+ bdb_idl_insert( ids, ei->bei_id );
+ if ( ei )
+ bdb_cache_entryinfo_unlock( ei );
+ return 0;
+ } else if ( mra->ma_rule && mra->ma_rule->smr_match ==
+ dnRelativeMatch && dnIsSuffix( &mra->ma_value,
+ op->o_bd->be_nsuffix )) {
+ int scope;
+ if ( mra->ma_rule == slap_schema.si_mr_dnSuperiorMatch ) {
+ struct berval pdn;
+ ei = NULL;
+ dnParent( &mra->ma_value, &pdn );
+ bdb_cache_find_ndn( op, locker, &pdn, &ei );
+ if ( ei ) {
+ bdb_cache_entryinfo_unlock( ei );
+ while ( ei && ei->bei_id ) {
+ bdb_idl_insert( ids, ei->bei_id );
+ ei = ei->bei_parent;
+ }
+ }
+ return 0;
+ }
+ if ( mra->ma_rule == slap_schema.si_mr_dnSubtreeMatch )
+ scope = LDAP_SCOPE_SUBTREE;
+ else if ( mra->ma_rule == slap_schema.si_mr_dnOneLevelMatch )
+ scope = LDAP_SCOPE_ONELEVEL;
+ else if ( mra->ma_rule == slap_schema.si_mr_dnSubordinateMatch )
+ scope = LDAP_SCOPE_SUBORDINATE;
+ else
+ scope = LDAP_SCOPE_BASE;
+ if ( scope > LDAP_SCOPE_BASE ) {
+ ei = NULL;
+ rc = bdb_cache_find_ndn( op, locker, &mra->ma_value, &ei );
+ if ( ei )
+ bdb_cache_entryinfo_unlock( ei );
+ if ( rc == LDAP_SUCCESS ) {
+ int sc = op->ors_scope;
+ op->ors_scope = scope;
+ rc = bdb_dn2idl( op, locker, &mra->ma_value, ei, ids,
+ stack );
+ op->ors_scope = sc;
+ }
+ return 0;
+ }
+ }
+ }
+
+ BDB_IDL_ALL( bdb, ids );
+ return 0;
+}
+