halap.c

一个免费的SMART CARD OS系统。

/* ============================================================================
   Project Name : jayaCard
   Module Name  : proto/hal/simu/halap.c
   Version : $Id: halap.c,v 1.7 2004/01/11 09:56:33 dgil Exp $

	Description: Manage Attack protection setting(s)

    The Original Code is jayaCard code.

    The Initial Developer of the Original Code is Gilles Dumortier.

    Portions created by the Initial Developer are Copyright (C) 2002-2004 the
    Initial Developer. All Rights Reserved.

    Contributor(s):

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; see http://www.gnu.org/licenses/gpl.html

   History Rev	Description
   020203 dgil	wrote it from scratch
   ============================================================================
*/

#include "precomp.h"

#if defined(JAYA_ATTACK_PROTECTION)
/* =========================================================================
	__hal_enter_attackprotection()

	Secure: use a local or a global semaphore to check the call has not been
 	bypassed.

	Secure: after attack protection set, check it (read register or do any
	action to test the protection is working).
   ========================================================================= */

jbyte __hal_enter_attackprotection(jbyte ap)
{
	if (ap==JSEC_OK) {
		/* start attack protection */
		ap++;

		LOG("HARDWARE","*** HAL_ENTER_ATTACKPROTECTION()");

		/* check attack protection is working */
		ap++;

		/* signal the semaphore the work has been done */
		return ap;
	}
	HAL_HALT();
	return JSEC_FAIL;
}

/* =========================================================================
	__hal_leave_attackprotection()
   ========================================================================= */

void __hal_leave_attackprotection(void)
{
	LOG("HARDWARE","*** HAL_LEAVE_ATTACKPROTECTION()");
}

#endif

/* =========================================================================
	That's all folks !
   ========================================================================= */