rostests/kmtests/rtl/RtlException.c

   1 /*
   2  * PROJECT:         ReactOS kernel-mode tests
   3  * LICENSE:         GPLv2+ - See COPYING in the top level directory
   4  * PURPOSE:         Kernel-Mode Test Suite Exception test
   5  * PROGRAMMER:      Thomas Faber <thfabba@gmx.de>
   6  */
   7
   8 #include <kmt_test.h>
   9
  10 #define StartSeh()                  ExceptionStatus = STATUS_SUCCESS; _SEH2_TRY {
  11 #define EndSeh(ExpectedStatus) }    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER) { ExceptionStatus = _SEH2_GetExceptionCode(); } _SEH2_END; ok_eq_hex(ExceptionStatus, ExpectedStatus)
  12
  13 START_TEST(RtlException)
  14 {
  15     NTSTATUS ExceptionStatus;
  16     PCHAR Buffer[128];
  17     CHAR Value;
  18
  19     /* Access a valid pointer - must not trigger SEH */
  20     StartSeh()
  21         RtlFillMemory(Buffer, sizeof(Buffer), 0x12);
  22     EndSeh(STATUS_SUCCESS);
  23
  24     /* Read from a NULL pointer - must cause an access violation */
  25     StartSeh()
  26         Value = *(volatile CHAR *)NULL;
  27     EndSeh(STATUS_ACCESS_VIOLATION);
  28
  29     /* Write to a NULL pointer - must cause an access violation */
  30     StartSeh()
  31         *(volatile CHAR *)NULL = 5;
  32     EndSeh(STATUS_ACCESS_VIOLATION);
  33
  34     /* TODO: Find where MmBadPointer is defined - gives an unresolved external */
  35 #if 0 //def KMT_KERNEL_MODE
  36     /* Read from MmBadPointer - must cause an access violation */
  37     StartSeh()
  38         Value = *(volatile CHAR *)MmBadPointer;
  39     EndSeh(STATUS_ACCESS_VIOLATION);
  40
  41     /* Write to MmBadPointer - must cause an access violation */
  42     StartSeh()
  43         *(volatile CHAR *)MmBadPointer = 5;
  44     EndSeh(STATUS_ACCESS_VIOLATION);
  45 #endif
  46
  47     /* We cannot test this in kernel mode easily - the stack is just "somewhere"
  48      * in system space, and there's no guard page below it */
  49 #ifdef KMT_USER_MODE
  50     /* Overflow the stack - must cause a special exception */
  51     StartSeh()
  52         PCHAR Pointer;
  53
  54         while (1)
  55         {
  56             Pointer = _alloca(1024);
  57             *Pointer = 5;
  58         }
  59     EndSeh(STATUS_STACK_OVERFLOW);
  60 #endif
  61 }