67 lines
2.5 KiB
C
67 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
|
|
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
* conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
* of conditions and the following disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
|
|
* to endorse or promote products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef __LOS_RANDOM_H__
|
|
#define __LOS_RANDOM_H__
|
|
|
|
#include "los_typedef.h"
|
|
#include "sys/ioctl.h"
|
|
|
|
#ifdef __cplusplus
|
|
#if __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
#endif /* __cplusplus */
|
|
|
|
#define RAMDOM_IOC_MAGIC 'r'
|
|
#define RANDOM_SET_MAX _IO(RAMDOM_IOC_MAGIC, 1)
|
|
|
|
int DevRandomRegister(void);
|
|
int DevUrandomRegister(void);
|
|
|
|
typedef struct {
|
|
int (*support)(void); /* Whether hard random numbers are supported */
|
|
void (*init)(void); /* Initializing the hard random number generator */
|
|
void (*deinit)(void); /* Deinitializing the hard random number generator */
|
|
int (*read)(char *buffer, size_t buflen); /* Read hard random number */
|
|
int (*ioctl)(int cmd, unsigned long arg); /* Control hard random number generator */
|
|
} RandomOperations;
|
|
|
|
void RandomOperationsInit(const RandomOperations *r);
|
|
|
|
#ifdef __cplusplus
|
|
#if __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
#endif /* __cplusplus */
|
|
|
|
#endif
|