2020-09-08 10:21:39 +08:00
|
|
|
/*
|
2021-03-11 18:43:57 +08:00
|
|
|
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
|
|
|
|
|
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
|
2020-09-08 10:21:39 +08:00
|
|
|
*
|
|
|
|
|
* 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_USER_GET_H
|
|
|
|
|
#define _LOS_USER_GET_H
|
|
|
|
|
|
|
|
|
|
#include "los_typedef.h"
|
|
|
|
|
#include "arm_user_get.h"
|
|
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
#if __cplusplus
|
|
|
|
|
extern "C" {
|
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* @brief Get data from userspace into kernelspace
|
|
|
|
|
*
|
|
|
|
|
* This function validates that usermode has access to src before copying the
|
|
|
|
|
* data.
|
|
|
|
|
*
|
|
|
|
|
* @param dst The destination buffer in kernel space.
|
|
|
|
|
* @param src The source buffer in user space.
|
|
|
|
|
*
|
|
|
|
|
* @note The data type is simple such as char, short, int, long in 32bits platform.
|
|
|
|
|
*
|
|
|
|
|
* @return Return -EFAULT if error. Return 0 if success.
|
|
|
|
|
*/
|
|
|
|
|
#define LOS_GetUser(dst, src) _arm_get_user((dst), (src), sizeof(*(dst)), sizeof(*(src)))
|
|
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
#if __cplusplus
|
|
|
|
|
}
|
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
|
|
|
|
#endif /* _LOS_USER_GET_H */
|
