xnu-7195.101.1.tar.gz

[apple/xnu.git] / san / kasan.h

diff --git a/san/kasan.h b/san/kasan.h
index 102a31468ab6e630537e401194baf9af857c5527..d7a43793b9651e9b9d03d027f37655e215a969e8 100644 (file)
--- a/san/kasan.h
+++ b/san/kasan.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
@@ -46,6 +46,7 @@ typedef uintptr_t uptr;
 
 #if KASAN
 
+#define KASAN_DEBUG  0
 #define KASAN_KALLOC 1
 #define KASAN_ZALLOC 1
 #define KASAN_DYNAMIC_BLACKLIST 1
@@ -101,18 +102,25 @@ void kasan_notify_address(vm_offset_t address, vm_size_t size);
 void kasan_notify_address_nopoison(vm_offset_t address, vm_size_t size);
 void kasan_unpoison_stack(vm_offset_t stack, vm_size_t size);
 void kasan_unpoison_curstack(bool whole_stack);
-void kasan_unpoison_fakestack(thread_t thread);
+bool kasan_check_shadow(vm_address_t base, vm_size_t sz, uint8_t shadow);
+void kasan_unpoison_cxx_array_cookie(void *ptr);
 
+void kasan_fakestack_drop(thread_t thread); /* mark all fakestack entries for thread as unused */
+void kasan_fakestack_gc(thread_t thread);   /* free and poison all unused fakestack objects for thread */
 void kasan_fakestack_suspend(void);
 void kasan_fakestack_resume(void);
 
+/* Initialization and check for uninitialized memory */
+void kasan_leak_init(vm_address_t addr, vm_size_t sz);
+void kasan_check_uninitialized(vm_address_t base, vm_size_t sz);
+
 struct kasan_test;
 void __kasan_runtests(struct kasan_test *, int numtests);
 
 
 typedef int (*pmap_traverse_callback)(vm_map_offset_t start,
-                                      vm_map_offset_t end,
-                                      void *context);
+    vm_map_offset_t end,
+    void *context);
 int kasan_traverse_mappings(pmap_traverse_callback, void *context);
 
 #if XNU_KERNEL_PRIVATE
@@ -123,9 +131,14 @@ void kasan_notify_address_zero(vm_offset_t, vm_size_t);
 #elif __x86_64__
 extern void kasan_map_low_fixed_regions(void);
 extern unsigned shadow_stolen_idx;
-extern vm_offset_t shadow_pnext, shadow_ptop;
 #endif
 #endif
+
+#if HIBERNATION
+// if we're building a kernel with hibernation support, hibernate_write_image depends on these symbols
+extern vm_offset_t shadow_pnext, shadow_ptop;
+#endif /* HIBERNATION */
+
 /*
  * Allocator hooks
  */
@@ -168,11 +181,11 @@ extern const uintptr_t __asan_shadow_memory_dynamic_address;
        ret func ## 2(__VA_ARGS__); \
        ret func ## 4(__VA_ARGS__); \
        ret func ## 8(__VA_ARGS__); \
-       ret func ## 16(__VA_ARGS__); \
+       ret func ## 16(__VA_ARGS__)
 
 __BEGIN_DECLS
 
-KASAN_DECLARE_FOREACH_WIDTH(void, __asan_report_load, uptr);
+    KASAN_DECLARE_FOREACH_WIDTH(void, __asan_report_load, uptr);
 KASAN_DECLARE_FOREACH_WIDTH(void, __asan_report_store, uptr);
 KASAN_DECLARE_FOREACH_WIDTH(void, __asan_store, uptr);
 KASAN_DECLARE_FOREACH_WIDTH(void, __asan_report_exp_load, uptr, int32_t);