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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_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) */
- #define KASAN_GLOBAL_REDZONE 0xFA /* redzone for global variable */
- /*
- * 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
- /* Don't break randconfig/all*config builds */
- #ifndef KASAN_ABI_VERSION
- #define KASAN_ABI_VERSION 1
- #endif
- struct kasan_access_info {
- const void *access_addr;
- const void *first_bad_addr;
- size_t access_size;
- bool is_write;
- unsigned long ip;
- };
- /* The layout of struct dictated by compiler */
- struct kasan_source_location {
- const char *filename;
- int line_no;
- int column_no;
- };
- /* The layout of struct dictated by compiler */
- struct kasan_global {
- const void *beg; /* Address of the beginning of the global variable. */
- size_t size; /* Size of the global variable. */
- size_t size_with_redzone; /* Size of the variable + size of the red zone. 32 bytes aligned */
- const void *name;
- const void *module_name; /* Name of the module where the global variable is declared. */
- unsigned long has_dynamic_init; /* This needed for C++ */
- #if KASAN_ABI_VERSION >= 4
- struct kasan_source_location *location;
- #endif
- #if KASAN_ABI_VERSION >= 5
- char *odr_indicator;
- #endif
- };
- 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_report_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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