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     ExRaiseStatus (STATUS_ACCESS_VIOLATION);
  33 }
  34
  35 /*
  36  * @implemented
  37  */
  38 VOID
  39 STDCALL
  40 ExRaiseDatatypeMisalignment (VOID)
  41 {
  42     /* Raise the Right Status */
  43     ExRaiseStatus (STATUS_DATATYPE_MISALIGNMENT);
  44 }
  45
  46 /*
  47  * @implemented
  48  */
  49 VOID
  50 STDCALL
  51 ExRaiseStatus(IN NTSTATUS Status)
  52 {
  53     EXCEPTION_RECORD ExceptionRecord;
  54
  55     DPRINT("ExRaiseStatus(%x)\n", Status);
  56
  57     /* Set up an Exception Record */
  58     ExceptionRecord.ExceptionRecord = NULL;
  59     ExceptionRecord.NumberParameters = 0;
  60     ExceptionRecord.ExceptionCode = Status;
  61     ExceptionRecord.ExceptionFlags = 0;
  62
  63     /* Call the Rtl Function */
  64     RtlRaiseException(&ExceptionRecord);
  65 }
  66
  67 /*
  68  * @implemented
  69  */
  70 VOID
  71 STDCALL
  72 ExRaiseException (PEXCEPTION_RECORD ExceptionRecord)
  73 {
  74     /* Call the Rtl function */
  75     RtlRaiseException(ExceptionRecord);
  76 }
  77
  78 /*
  79  * @implemented
  80  */
  81 LONG
  82 STDCALL
  83 ExSystemExceptionFilter(VOID)
  84 {
  85     return KeGetPreviousMode() != KernelMode ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH;
  86 }
  87
  88 /*
  89  * @unimplemented
  90  */
  91 VOID
  92 STDCALL
  93 ExRaiseHardError(IN NTSTATUS ErrorStatus,
  94                  IN ULONG NumberOfParameters,
  95                  IN PUNICODE_STRING UnicodeStringParameterMask OPTIONAL,
  96                  IN PVOID *Parameters,
  97                  IN HARDERROR_RESPONSE_OPTION ResponseOption,
  98                  OUT PHARDERROR_RESPONSE Response)
  99 {
 100     UNIMPLEMENTED;
 101 }
 102
 103 NTSTATUS
 104 STDCALL
 105 NtRaiseHardError(IN NTSTATUS ErrorStatus,
 106                  IN ULONG NumberOfParameters,
 107                  IN PUNICODE_STRING UnicodeStringParameterMask  OPTIONAL,
 108                  IN PVOID *Parameters,
 109                  IN HARDERROR_RESPONSE_OPTION ResponseOption,
 110                  OUT PHARDERROR_RESPONSE Response)
 111 {
 112     DPRINT1("Hard error %x\n", ErrorStatus);
 113
 114     /* Call the Executive Function (WE SHOULD PUT SEH HERE/CAPTURE!) */
 115     ExRaiseHardError(ErrorStatus,
 116                      NumberOfParameters,
 117                      UnicodeStringParameterMask,
 118                      Parameters,
 119                      ResponseOption,
 120                      Response);
 121
 122     /* Return Success */
 123     return STATUS_SUCCESS;
 124 }
 125
 126 NTSTATUS
 127 STDCALL
 128 NtSetDefaultHardErrorPort(IN HANDLE PortHandle)
 129 {
 130
 131     KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
 132     NTSTATUS Status = STATUS_UNSUCCESSFUL;
 133
 134     /* Check if we have the Privilege */
 135     if(!SeSinglePrivilegeCheck(SeTcbPrivilege, PreviousMode)) {
 136
 137         DPRINT1("NtSetDefaultHardErrorPort: Caller requires the SeTcbPrivilege privilege!\n");
 138         return STATUS_PRIVILEGE_NOT_HELD;
 139     }
 140
 141     /* Only called once during bootup, make sure we weren't called yet */
 142     if(!ExReadyForErrors) {
 143
 144         Status = ObReferenceObjectByHandle(PortHandle,
 145                                            0,
 146                                            LpcPortObjectType,
 147                                            PreviousMode,
 148                                            (PVOID*)&ExpDefaultErrorPort,
 149                                            NULL);
 150
 151         /* Check for Success */
 152         if(NT_SUCCESS(Status)) {
 153
 154             /* Save the data */
 155             ExpDefaultErrorPortProcess = PsGetCurrentProcess();
 156             ExReadyForErrors = TRUE;
 157         }
 158     }
 159
 160     return Status;
 161 }
 162
 163 /* EOF */