You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
170 lines
3.7 KiB
170 lines
3.7 KiB
/*++
|
|
|
|
Copyright (c) 2000-2001 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
query.c
|
|
|
|
Abstract:
|
|
|
|
This module contains the NT service to query the debug print enable
|
|
for a specified component and level.
|
|
|
|
Author:
|
|
|
|
David N. Cutler (davec) 29-Jan-2000
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#include "kdp.h"
|
|
#pragma hdrstop
|
|
|
|
#pragma alloc_text (PAGE, NtSetDebugFilterState)
|
|
|
|
NTSTATUS
|
|
NtQueryDebugFilterState(
|
|
IN ULONG ComponentId,
|
|
IN ULONG Level
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This function queries the debug print enable for a specified component
|
|
level.
|
|
|
|
Arguments:
|
|
|
|
ComponentId - Supplies the component id.
|
|
|
|
Level - Supplies the debug filter level number or mask.
|
|
|
|
Return Value:
|
|
|
|
STATUS_INVALID_PARAMETER_1 is returned if the component id is not
|
|
valid.
|
|
|
|
TRUE is returned if output is enabled for the specified component
|
|
and level or is enabled for the system.
|
|
|
|
FALSE is returned if output is not enabled for the specified component
|
|
and level and is not enabled for the system.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
ULONG Mask;
|
|
PULONG Value;
|
|
|
|
//
|
|
// If the component id is out of range, then return an invalid parameter
|
|
// status. Otherwise, if output is enabled for the specified component
|
|
// and level or is enabled for the system, then return TRUE. Otherwise,
|
|
// return FALSE.
|
|
//
|
|
|
|
Value = &Kd_WIN2000_Mask;
|
|
if (ComponentId < KdComponentTableSize) {
|
|
Value = KdComponentTable[ComponentId];
|
|
|
|
} else if (ComponentId != -1) {
|
|
return STATUS_INVALID_PARAMETER_1;
|
|
}
|
|
|
|
if (Level > 31) {
|
|
Mask = Level;
|
|
|
|
} else {
|
|
Mask = 1 << Level;
|
|
}
|
|
|
|
if (((Mask & Kd_WIN2000_Mask) == 0) &&
|
|
((Mask & *Value) == 0)) {
|
|
return FALSE;
|
|
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
NTSTATUS
|
|
NtSetDebugFilterState(
|
|
IN ULONG ComponentId,
|
|
IN ULONG Level,
|
|
IN BOOLEAN State
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This function sets the state of the debug print enable for a specified
|
|
component and level. The debug print enable state for the system is set
|
|
by specifying the distinguished value -1 for the component id.
|
|
|
|
Arguments:
|
|
|
|
ComponentId - Supplies the component id.
|
|
|
|
Level - Supplies the debug filter level number or mask.
|
|
|
|
State - Supplies a boolean value that determines the new state.
|
|
|
|
Return Value:
|
|
|
|
STATUS_ACCESS_DENIED is returned if the required privilege is not held.
|
|
|
|
STATUS_INVALID_PARAMETER_1 is returned if the component id is not
|
|
valid.
|
|
|
|
STATUS_SUCCESS is returned if the debug print enable state is set for
|
|
the specified component.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
ULONG Enable;
|
|
ULONG Mask;
|
|
PULONG Value;
|
|
|
|
//
|
|
// If the required privilege is not held, then return a status of access
|
|
// denied. Otherwise, if the component id is out of range, then return an
|
|
// invalid parameter status. Otherwise, the debug print enable state is
|
|
// set for the specified component and a success status is returned.
|
|
//
|
|
|
|
if (SeSinglePrivilegeCheck(SeDebugPrivilege, KeGetPreviousMode()) != FALSE) {
|
|
Value = &Kd_WIN2000_Mask;
|
|
if (ComponentId < KdComponentTableSize) {
|
|
Value = KdComponentTable[ComponentId];
|
|
|
|
} else if (ComponentId != - 1) {
|
|
return STATUS_INVALID_PARAMETER_1;
|
|
}
|
|
|
|
if (Level > 31) {
|
|
Mask = Level;
|
|
|
|
} else {
|
|
Mask = 1 << Level;
|
|
}
|
|
|
|
Enable = Mask;
|
|
if (State == FALSE) {
|
|
Enable = 0;
|
|
}
|
|
|
|
*Value = (*Value & ~Mask) | Enable;
|
|
return STATUS_SUCCESS;
|
|
|
|
} else {
|
|
return STATUS_ACCESS_DENIED;
|
|
}
|
|
}
|