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#ifndef __MM_KASAN_KASAN_H
#define __MM_KASAN_KASAN_H
#include <linux/kasan.h>
#define KASAN_SHADOW_SCALE_SIZE (1UL << KASAN_SHADOW_SCALE_SHIFT)
#define KASAN_SHADOW_MASK (KASAN_SHADOW_SCALE_SIZE - 1)
#define KASAN_FREE_PAGE 0xFF /* page was freed */
#define KASAN_FREE_PAGE 0xFF /* page was freed */
#define KASAN_PAGE_REDZONE 0xFE /* redzone for kmalloc_large allocations */
#define KASAN_KMALLOC_REDZONE 0xFC /* redzone inside slub object */
#define KASAN_KMALLOC_FREE 0xFB /* object was freed (kmem_cache_free/kfree) */
/*
* Stack redzone shadow values
* (Those are compiler's ABI, don't change them)
*/
#define KASAN_STACK_LEFT 0xF1
#define KASAN_STACK_MID 0xF2
#define KASAN_STACK_RIGHT 0xF3
#define KASAN_STACK_PARTIAL 0xF4
struct kasan_access_info {
const void *access_addr;
const void *first_bad_addr;
size_t access_size;
bool is_write;
unsigned long ip;
};
void kasan_report_error(struct kasan_access_info *info);
void kasan_report_user_access(struct kasan_access_info *info);
static inline const void *kasan_shadow_to_mem(const void *shadow_addr)
{
return (void *)(((unsigned long)shadow_addr - KASAN_SHADOW_OFFSET)
<< KASAN_SHADOW_SCALE_SHIFT);
}
static inline bool kasan_enabled(void)
{
return !current->kasan_depth;
}
void kasan_report(unsigned long addr, size_t size,
bool is_write, unsigned long ip);
#endif
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