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+/* ava.c - routines for dealing with attribute value assertions */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * 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>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+
+#ifdef LDAP_COMP_MATCH
+#include "component.h"
+#endif
+
+void
+ava_free(
+ Operation *op,
+ AttributeAssertion *ava,
+ int freeit )
+{
+#ifdef LDAP_COMP_MATCH
+ if ( ava->aa_cf && ava->aa_cf->cf_ca->ca_comp_data.cd_mem_op )
+ nibble_mem_free ( ava->aa_cf->cf_ca->ca_comp_data.cd_mem_op );
+#endif
+ op->o_tmpfree( ava->aa_value.bv_val, op->o_tmpmemctx );
+ if ( ava->aa_desc->ad_flags & SLAP_DESC_TEMPORARY )
+ op->o_tmpfree( ava->aa_desc, op->o_tmpmemctx );
+ if ( freeit ) op->o_tmpfree( (char *) ava, op->o_tmpmemctx );
+}
+
+AttributeAssertion *
+ava_dup(
+ AttributeAssertion *ava,
+ void *memctx )
+{
+ BerMemoryFunctions *mf = &slap_sl_mfuncs;
+ AttributeAssertion *nava;
+
+ nava = mf->bmf_malloc( sizeof(AttributeAssertion), memctx );
+ *nava = *ava;
+ if ( ava->aa_desc->ad_flags & SLAP_DESC_TEMPORARY )
+ nava->aa_desc = slap_bv2tmp_ad( &ava->aa_desc->ad_cname, memctx );
+ ber_dupbv_x( &nava->aa_value, &ava->aa_value, memctx );
+ return nava;
+}
+
+int
+get_ava(
+ Operation *op,
+ BerElement *ber,
+ Filter *f,
+ unsigned usage,
+ const char **text )
+{
+ int rc;
+ ber_tag_t rtag;
+ struct berval type, value;
+ AttributeAssertion *aa;
+#ifdef LDAP_COMP_MATCH
+ AttributeAliasing* a_alias = NULL;
+#endif
+
+ rtag = ber_scanf( ber, "{mm}", &type, &value );
+
+ if( rtag == LBER_ERROR ) {
+ Debug( LDAP_DEBUG_ANY, " get_ava ber_scanf\n" );
+ *text = "Error decoding attribute value assertion";
+ return SLAPD_DISCONNECT;
+ }
+
+ aa = op->o_tmpalloc( sizeof( AttributeAssertion ), op->o_tmpmemctx );
+ aa->aa_desc = NULL;
+ aa->aa_value.bv_val = NULL;
+#ifdef LDAP_COMP_MATCH
+ aa->aa_cf = NULL;
+#endif
+
+ rc = slap_bv2ad( &type, &aa->aa_desc, text );
+
+ if( rc != LDAP_SUCCESS ) {
+ f->f_choice |= SLAPD_FILTER_UNDEFINED;
+ *text = NULL;
+ rc = slap_bv2undef_ad( &type, &aa->aa_desc, text,
+ SLAP_AD_PROXIED|SLAP_AD_NOINSERT );
+
+ if( rc != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_FILTER,
+ "get_ava: unknown attributeType %s\n", type.bv_val );
+ aa->aa_desc = slap_bv2tmp_ad( &type, op->o_tmpmemctx );
+ ber_dupbv_x( &aa->aa_value, &value, op->o_tmpmemctx );
+ f->f_ava = aa;
+ return LDAP_SUCCESS;
+ }
+ }
+
+ rc = asserted_value_validate_normalize(
+ aa->aa_desc, ad_mr(aa->aa_desc, usage),
+ usage, &value, &aa->aa_value, text, op->o_tmpmemctx );
+
+ if( rc != LDAP_SUCCESS ) {
+ f->f_choice |= SLAPD_FILTER_UNDEFINED;
+ Debug( LDAP_DEBUG_FILTER,
+ "get_ava: illegal value for attributeType %s\n", type.bv_val );
+ ber_dupbv_x( &aa->aa_value, &value, op->o_tmpmemctx );
+ *text = NULL;
+ rc = LDAP_SUCCESS;
+ }
+
+#ifdef LDAP_COMP_MATCH
+ if( is_aliased_attribute ) {
+ a_alias = is_aliased_attribute ( aa->aa_desc );
+ if ( a_alias ) {
+ rc = get_aliased_filter_aa ( op, aa, a_alias, text );
+ if( rc != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_FILTER,
+ "get_ava: Invalid Attribute Aliasing\n" );
+ return rc;
+ }
+ }
+ }
+#endif
+ f->f_ava = aa;
+ return LDAP_SUCCESS;
+}