testrng.c

来自「freescale ppc sec2加解密单元驱动」· C语言 代码 · 共 69 行

/****************************************************************************
 * testRng.c - random number generation test for SEC2 device driver
 ****************************************************************************
 * Copyright (c) 2004-2005 Freescale Semiconductor
 * All Rights Reserved. Proprietary and Confidential.
 *
 * NOTICE: The information contained in this file is proprietary
 * to Freescale Semiconductor, and is being made available to
 * Freescale's customers under strict license agreements.
 * Use or disclosure of this information is permissible only
 * under the terms of the existing license agreement.
 ***************************************************************************/

/* Revision History:
 * 1.1.0 Dec 05,2004 sec - prep for linux-compatible driver release
 * 1.2   02-Feb-2005 sec - fix warnings
 */
#include <stdio.h>
#include "sec2drvTest.h"
#include "Sec2.h"

#define RNG_TESTSIZE (160)
extern int waitCompletion(char *testname, int iostat, void *req);
extern  volatile char proceed;
extern void armCompletion(void *req);
extern int SEC2_ioctl(register int ioctlCode, register void *param);

static unsigned char rngBuf[RNG_TESTSIZE];


int testRng(int fd)
{
    RNG_REQ rngReq;
    int  status;
    int  algoType;

    /* RNG test */
    printf("\n*** Test RNG ***\n");

    memset(&rngReq, 0, sizeof(rngReq));
    memset(rngBuf, 0, RNG_TESTSIZE);

    rngReq.opId     = DPD_RNG_GETRN;
    rngReq.rngBytes = RNG_TESTSIZE;
    algoType = 1;      /*DRV_IPSEC_RNG_NUM*/
    rngReq.rngData  = rngBuf;
        
    armCompletion(&rngReq);
    status = SEC2_ioctl(IOCTL_PROC_REQ, (int*)&rngReq);

    if (status == waitCompletion("testRng(): data extraction test", status, (void*)&rngReq))
    {
        return status;
    }
    
    /* check random buffer content for nonzero */
    if (rngBuf[0]) {
        printf("*** Test RNG Data ***\n");
        status = 0;
    } else {
        printf("*** Test RNG Failed ***\n");
        status = -1;
    }

    return status;
}