/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the PKIX-C library.
 *
 * The Initial Developer of the Original Code is
 * Sun Microsystems, Inc.
 * Portions created by the Initial Developer are
 * Copyright 2004-2007 Sun Microsystems, Inc.  All Rights Reserved.
 *
 * Contributor(s):
 *   Sun Microsystems, Inc.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */
/*
 * pkix_ekuchecker.h
 *
 * User Defined Object Type Extended Key Usage Definition
 *
 */

#ifndef _PKIX_EKUCHECKER_H
#define _PKIX_EKUCHECKER_H

#include "pkix_pl_common.h"

#ifdef __cplusplus
extern "C" {
#endif

/*
 * FUNCTION: PKIX_PL_EkuChecker_Create
 *
 * DESCRIPTION:
 *  Create a CertChainChecker with EkuCheckerState and add it into
 *  PKIX_ProcessingParams object.
 *
 * PARAMETERS
 *  "params"
 *      a PKIX_ProcessingParams links to PKIX_ComCertSelParams where a list of
 *      Extended Key Usage OIDs specified by application can be retrieved for
 *      verification.
 *  "ekuChecker" 
 *      Address of created ekuchecker.
 *  "plContext"
 *      Platform-specific context pointer.
 *
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 *
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a UserDefinedModules Error if the function fails in a non-fatal
 *  way.
 *  Returns a Fatal Error
 */
PKIX_Error *
PKIX_EkuChecker_Create(
        PKIX_ProcessingParams *params,
        PKIX_CertChainChecker **ekuChecker,
        void *plContext);

/*
 * FUNCTION: PKIX_PL_EkuChecker_GetRequiredEku
 *
 * DESCRIPTION:
 *  This function retrieves application specified ExtenedKeyUsage(s) from
 *  ComCertSetparams and converts its OID representations to SECCertUsageEnum.
 *  The result is stored and returned in bit mask at "pRequiredExtKeyUsage".
 *
 * PARAMETERS
 *  "certSelector"
 *      a PKIX_CertSelector links to PKIX_ComCertSelParams where a list of
 *      Extended Key Usage OIDs specified by application can be retrieved for
 *      verification. Must be non-NULL.
 *  "pRequiredExtKeyUsage"
 *      Address where the result is returned. Must be non-NULL.
 *  "plContext"
 *      Platform-specific context pointer.
 *
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 *
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a UserDefinedModules Error if the function fails in a non-fatal
 *  way.
 *  Returns a Fatal Error
 */
PKIX_Error *
pkix_EkuChecker_GetRequiredEku(
        PKIX_CertSelector *certSelector,
        PKIX_UInt32 *pRequiredExtKeyUsage,
        void *plContext);

/* see source file for function documentation */
PKIX_Error *pkix_EkuChecker_RegisterSelf(void *plContext);

#ifdef __cplusplus
}
#endif

#endif /* _PKIX_PL_EKUCHECKER_H */