47ffb9019f
Split kasan.c to incorporate label based kasan: hook.c: Implement compiler instrumentation function generic.c: Implementation software kasan algorithm Signed-off-by: wangmingrong <wangmingrong1@xiaomi.com>
154 lines
4.2 KiB
C
154 lines
4.2 KiB
C
/****************************************************************************
|
|
* mm/kasan/kasan.h
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __MM_KASAN_KASAN_H
|
|
#define __MM_KASAN_KASAN_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#ifndef CONFIG_MM_KASAN
|
|
# define kasan_is_poisoned(addr, size) false
|
|
# define kasan_poison(addr, size)
|
|
# define kasan_unpoison(addr, size)
|
|
# define kasan_register(addr, size)
|
|
# define kasan_init_early()
|
|
#else
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: kasan_is_poisoned
|
|
*
|
|
* Description:
|
|
* Check if the memory range is poisoned
|
|
*
|
|
* Input Parameters:
|
|
* addr - range start address
|
|
* size - range size
|
|
*
|
|
* Returned Value:
|
|
* true if the memory range is poisoned, false otherwise.
|
|
*
|
|
****************************************************************************/
|
|
|
|
bool kasan_is_poisoned(FAR const void *addr, size_t size);
|
|
|
|
/****************************************************************************
|
|
* Name: kasan_poison
|
|
*
|
|
* Description:
|
|
* Mark the memory range as inaccessible
|
|
*
|
|
* Input Parameters:
|
|
* addr - range start address
|
|
* size - range size
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void kasan_poison(FAR const void *addr, size_t size);
|
|
|
|
/****************************************************************************
|
|
* Name: kasan_unpoison
|
|
*
|
|
* Description:
|
|
* Mark the memory range as accessible
|
|
*
|
|
* Input Parameters:
|
|
* addr - range start address
|
|
* size - range size
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void kasan_unpoison(FAR const void *addr, size_t size);
|
|
|
|
/****************************************************************************
|
|
* Name: kasan_register
|
|
*
|
|
* Description:
|
|
* Monitor the memory range for invalid access check
|
|
*
|
|
* Input Parameters:
|
|
* addr - range start address
|
|
* size - range size
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
* Note:
|
|
* The size is shrinked for the shadow region
|
|
*
|
|
****************************************************************************/
|
|
|
|
void kasan_register(FAR void *addr, FAR size_t *size);
|
|
|
|
/****************************************************************************
|
|
* Name: kasan_init_early
|
|
*
|
|
* Description:
|
|
* Initialize the kasan early, setup g_region_init variable.
|
|
* This used for some platfroms clear bss late, and error use kasan before
|
|
* called kasan_register().
|
|
*
|
|
* Input Parameters:
|
|
* None.
|
|
*
|
|
* Returned Value:
|
|
* None.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void kasan_init_early(void);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* CONFIG_MM_KASAN */
|
|
|
|
#endif /* __MM_KASAN_KASAN_H */
|