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/**********************************************************************
* Copyright (c) 2013-2014 Red Hat, Inc.
*
* Developed by Daynix Computing LTD.
*
* Authors:
* Dmitry Fleytman <dmitry@daynix.com>
* Kirill Moizik <kirill@daynix.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**********************************************************************/
#pragma once
class CRegKey
{
public:
NTSTATUS Open(const CRegKey &ParentKey, const UNICODE_STRING &RegPath);
NTSTATUS Open(const UNICODE_STRING &RegPath)
{ return Open(CRegKey(), RegPath); }
template<typename TFunctor>
NTSTATUS ForEachSubKey(TFunctor Functor)
{
auto status = STATUS_SUCCESS;
for (ULONG Index = 0; status == STATUS_SUCCESS; Index++)
{
CWdmMemoryBuffer InfoBuffer;
status = QuerySubkeyInfo(Index, KeyBasicInformation, InfoBuffer);
if (NT_SUCCESS(status))
{
auto Info = reinterpret_cast<PKEY_BASIC_INFORMATION>(InfoBuffer.Ptr());
CStringHolder Name;
Name.Attach(Info->Name, static_cast<USHORT>(Info->NameLength));
Functor(Name);
}
}
if (status == STATUS_NO_MORE_ENTRIES)
{
return STATUS_SUCCESS;
}
return status;
}
~CRegKey()
{
if (m_Key != nullptr)
{
ZwClose(m_Key);
}
}
protected:
NTSTATUS QuerySubkeyInfo(ULONG Index,
KEY_INFORMATION_CLASS InfoClass,
CWdmMemoryBuffer &Buffer);
NTSTATUS QueryValueInfo(const UNICODE_STRING &ValueName,
KEY_VALUE_INFORMATION_CLASS InfoClass,
CWdmMemoryBuffer &Buffer);
HANDLE m_Key = nullptr;
};
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