reactos/ntoskrnl/ex/error.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS kernel
   4  * FILE:            ntoskrnl/ex/error.c
   5  * PURPOSE:         Error Functions and Status/Exception Dispatching/Raising
   6  *
   7  * PROGRAMMERS:     Alex Ionescu (alex@relsoft.net) - Created File
   8  */
   9
  10 /* INCLUDES *****************************************************************/
  11
  12 #include <ntoskrnl.h>
  13 #define NDEBUG
  14 #include <internal/debug.h>
  15
  16 /* GLOBALS ****************************************************************/
  17
  18 BOOLEAN ExReadyForErrors = FALSE;
  19 PEPORT ExpDefaultErrorPort = NULL;
  20 PEPROCESS ExpDefaultErrorPortProcess = NULL;
  21
  22 /* FUNCTIONS ****************************************************************/
  23
  24 /*
  25  * @implemented
  26  */
  27 VOID
  28 STDCALL
  29 ExRaiseAccessViolation(VOID)
  30 {
  31     /* Raise the Right Status */
  32     RtlRaiseStatus(STATUS_ACCESS_VIOLATION);
  33 }
  34
  35 /*
  36  * @implemented
  37  */
  38 VOID
  39 STDCALL
  40 ExRaiseDatatypeMisalignment (VOID)
  41 {
  42     /* Raise the Right Status */
  43     RtlRaiseStatus(STATUS_DATATYPE_MISALIGNMENT);
  44 }
  45
  46 /*
  47  * @implemented
  48  */
  49 LONG
  50 STDCALL
  51 ExSystemExceptionFilter(VOID)
  52 {
  53     return KeGetPreviousMode() != KernelMode ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
  54 }
  55
  56 /*
  57  * @unimplemented
  58  */
  59 VOID
  60 STDCALL
  61 ExRaiseHardError(IN NTSTATUS ErrorStatus,
  62                  IN ULONG NumberOfParameters,
  63                  IN ULONG UnicodeStringParameterMask,
  64                  IN PULONG_PTR Parameters,
  65                  IN ULONG ValidResponseOptions,
  66                  OUT PULONG Response)
  67 {
  68     UNIMPLEMENTED;
  69 }
  70
  71 NTSTATUS
  72 STDCALL
  73 NtRaiseHardError(IN NTSTATUS ErrorStatus,
  74                  IN ULONG NumberOfParameters,
  75                  IN ULONG UnicodeStringParameterMask,
  76                  IN PULONG_PTR Parameters,
  77                  IN ULONG ValidResponseOptions,
  78                  OUT PULONG Response)
  79 {
  80     DPRINT1("Hard error %x\n", ErrorStatus);
  81
  82     /* Call the Executive Function (WE SHOULD PUT SEH HERE/CAPTURE!) */
  83     ExRaiseHardError(ErrorStatus,
  84                      NumberOfParameters,
  85                      UnicodeStringParameterMask,
  86                      Parameters,
  87                      ValidResponseOptions,
  88                      Response);
  89
  90     /* Return Success */
  91     return STATUS_SUCCESS;
  92 }
  93
  94 NTSTATUS
  95 STDCALL
  96 NtSetDefaultHardErrorPort(IN HANDLE PortHandle)
  97 {
  98
  99     KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
 100     NTSTATUS Status = STATUS_UNSUCCESSFUL;
 101
 102     /* Check if we have the Privilege */
 103     if(!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode)) {
 104
 105         DPRINT1("NtSetDefaultHardErrorPort: Caller requires the SeTcbPrivilege privilege!\n");
 106         return STATUS_PRIVILEGE_NOT_HELD;
 107     }
 108
 109     /* Only called once during bootup, make sure we weren't called yet */
 110     if(!ExReadyForErrors) {
 111
 112         Status = ObReferenceObjectByHandle(PortHandle,
 113                                            0,
 114                                            LpcPortObjectType,
 115                                            PreviousMode,
 116                                            (PVOID*)&ExpDefaultErrorPort,
 117                                            NULL);
 118
 119         /* Check for Success */
 120         if(NT_SUCCESS(Status)) {
 121
 122             /* Save the data */
 123             ExpDefaultErrorPortProcess = PsGetCurrentProcess();
 124             ExReadyForErrors = TRUE;
 125         }
 126     }
 127
 128     return Status;
 129 }
 130
 131 /* EOF */