windows-nt/Source/XPSP1/NT/admin/wmiprov/trustmon/trustprv.cpp

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2020-09-26 03:20:57 -05:00
//+----------------------------------------------------------------------------
//
// Windows 2000 Active Directory Service domain trust verification WMI provider
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 2000
//
// File: TrustPrv.cpp
//
// Contents: Trust Monitor provider WMI interface class implementation
//
// Classes: CTrustPrv
//
// History: 22-Mar-00 EricB created
//
//-----------------------------------------------------------------------------
#include "stdafx.h"
#include "dbg.cpp"
PCWSTR CLASSNAME_STRING_PROVIDER = L"Microsoft_TrustProvider";
PCWSTR CLASSNAME_STRING_TRUST = L"Microsoft_DomainTrustStatus";
PCWSTR CLASSNAME_STRING_LOCAL = L"Microsoft_LocalDomainInfo";
PCWSTR CSTR_PROP_TRUST_LIST_LIFETIME = L"TrustListLifetime"; // uint32
PCWSTR CSTR_PROP_TRUST_STATUS_LIFETIME = L"TrustStatusLifetime"; // uint32
PCWSTR CSTR_PROP_TRUST_CHECK_LEVEL = L"TrustCheckLevel"; // uint32
PCWSTR CSTR_PROP_RETURN_ALL_TRUSTS = L"ReturnAll"; // boolean
//WCHAR * const PROVIDER_CLASS_CHANGE_QUERY = L"select * from __InstanceOperationEvent where TargetInstance.__Relpath = \"Microsoft_TrustProvider=@\"";
WCHAR * const PROVIDER_CLASS_CHANGE_QUERY = L"select * from __InstanceOperationEvent where TargetInstance isa \"Microsoft_TrustProvider\"";
WCHAR * const PROVIDER_CLASS_INSTANCE = L"Microsoft_TrustProvider=@";
//+----------------------------------------------------------------------------
//
// class CTrustPrv
//
//-----------------------------------------------------------------------------
CTrustPrv::CTrustPrv(void) :
m_hMutex(NULL),
m_TrustCheckLevel(DEFAULT_TRUST_CHECK_LEVEL),
m_fReturnAllTrusts(TRUE),
m_fRegisteredForChanges(FALSE)
{
TRACE(L"CTrustPrv::CTrustPrv(0x%08x)\n", this);
m_liTrustEnumMaxAge.QuadPart = TRUSTMON_DEFAULT_ENUM_AGE;
m_liVerifyMaxAge.QuadPart = TRUSTMON_DEFAULT_VERIFY_AGE;
}
CTrustPrv::~CTrustPrv(void)
{
TRACE(L"CTrustPrv::~CTrustPrv\n");
if (m_hMutex)
{
CloseHandle(m_hMutex);
}
if (m_fRegisteredForChanges)
{
m_sipNamespace->CancelAsyncCall(this);
}
}
//+----------------------------------------------------------------------------
//
// Method: CTrustPrv::IWbemProviderInit::Initialize
//
// Synopsis: Initialize the provider object.
//
// Returns: WMI error codes
//
//-----------------------------------------------------------------------------
STDMETHODIMP
CTrustPrv::Initialize(
IN LPWSTR pszUser,
IN LONG lFlags,
IN LPWSTR pszNamespace,
IN LPWSTR pszLocale,
IN IWbemServices *pNamespace,
IN IWbemContext *pCtx,
IN IWbemProviderInitSink *pInitSink)
{
WBEM_VALIDATE_INTF_PTR(pNamespace);
WBEM_VALIDATE_INTF_PTR(pCtx);
WBEM_VALIDATE_INTF_PTR(pInitSink);
TRACE(L"\nCTrustPrv::Initialize\n");
HRESULT hr = WBEM_S_NO_ERROR;
do
{
m_hMutex = CreateMutex(NULL, FALSE, NULL);
BREAK_ON_NULL_(m_hMutex, hr, WBEM_E_OUT_OF_MEMORY);
m_sipNamespace = pNamespace;
CComPtr<IWbemClassObject> sipProviderInstance;
IWbemClassObject * pLocalClassDef = NULL;
//
// Get pointers to the class definition objects. If a failure, re-compile
// the MOF file and try once more.
//
for (int i = 0; i <= 1; i++)
{
CComBSTR sbstrObjectName = CLASSNAME_STRING_TRUST;
hr = m_sipNamespace->GetObject(sbstrObjectName,
WBEM_FLAG_RETURN_WBEM_COMPLETE,
pCtx,
&m_sipClassDefTrustStatus,
NULL);
if (FAILED(hr))
{
TRACE(L"GetObject(%s) failed with error 0x%08x\n", sbstrObjectName, hr);
DoMofComp(NULL, NULL, NULL, 0);
continue;
}
sbstrObjectName = CLASSNAME_STRING_LOCAL;
hr = m_sipNamespace->GetObject(sbstrObjectName,
WBEM_FLAG_RETURN_WBEM_COMPLETE,
pCtx,
&pLocalClassDef,
NULL);
if (FAILED(hr))
{
TRACE(L"GetObject(%s) failed with error 0x%08x\n", sbstrObjectName, hr);
DoMofComp(NULL, NULL, NULL, 0);
continue;
}
sbstrObjectName = CLASSNAME_STRING_PROVIDER;
hr = m_sipNamespace->GetObject(sbstrObjectName,
WBEM_FLAG_RETURN_WBEM_COMPLETE,
pCtx,
&m_sipClassDefTrustProvider,
NULL);
if (FAILED(hr))
{
TRACE(L"GetObject(%s) failed with error 0x%08x\n", sbstrObjectName, hr);
DoMofComp(NULL, NULL, NULL, 0);
continue;
}
//
// Get the instance of the provider class to read its properties.
//
sbstrObjectName = PROVIDER_CLASS_INSTANCE;
hr = m_sipNamespace->GetObject(sbstrObjectName,
WBEM_FLAG_RETURN_WBEM_COMPLETE,
pCtx,
&sipProviderInstance,
NULL);
if (FAILED(hr))
{
TRACE(L"GetObject(%s) failed with error 0x%08x\n", sbstrObjectName, hr);
DoMofComp(NULL, NULL, NULL, 0);
}
else
{
i = 2; // success, don't loop again.
}
}
BREAK_ON_FAIL;
//
// Set this provider instance's runtime properties.
//
hr = SetProviderProps(sipProviderInstance);
BREAK_ON_FAIL;
//
// Initialize the domain object.
//
hr = m_DomainInfo.Init(pLocalClassDef);
BREAK_ON_FAIL;
//
// Register to recieve change notifications for the provider class
// properties.
//
CComBSTR bstrLang(L"WQL");
CComBSTR bstrClassQuery(PROVIDER_CLASS_CHANGE_QUERY);
hr = m_sipNamespace->ExecNotificationQueryAsync(bstrLang,
bstrClassQuery,
0,
NULL,
this);
BREAK_ON_FAIL;
m_fRegisteredForChanges = TRUE;
//
// Let CIMOM know we are initialized.
// Return value and SetStatus param should be consistent, so ignore
// the return value from SetStatus itself (in retail builds).
//
HRESULT hr2;
hr2 = pInitSink->SetStatus(WBEM_S_INITIALIZED, 0);
ASSERT(!FAILED(hr2));
} while (false);
if (FAILED(hr))
{
TRACE(L"hr = 0x%08x\n", hr);
pInitSink->SetStatus(WBEM_E_FAILED, 0);
}
return hr;
}
//+----------------------------------------------------------------------------
//
// Method: CTrustPrv::IWbemObjectSink::Indicate
//
// Synopsis: Recieves provider object instance change notifications from WMI.
//
//-----------------------------------------------------------------------------
STDMETHODIMP
CTrustPrv::Indicate(LONG lObjectCount,
IWbemClassObject ** rgpObjArray)
{
TRACE(L"\nCTrustPrv::Indicate++++++++++++++++\n");
if (1 > lObjectCount)
{
TRACE(L"\tno objects supplied!\n");
return WBEM_S_NO_ERROR;
}
VARIANT var;
HRESULT hr = (*rgpObjArray)->Get(L"TargetInstance", 0, &var, NULL, NULL);
if (FAILED(hr) || VT_UNKNOWN != var.vt || !var.punkVal)
{
TRACE(L"Error, could not get the target instance, hr = 0x%08x\n", hr);
return hr;
}
hr = SetProviderProps((IWbemClassObject *)var.punkVal);
VariantClear(&var);
return hr;
}
//+----------------------------------------------------------------------------
//
// Method: CTrustPrv::SetProviderProps
//
// Synopsis: Set the provider runtime instance values from the instance of
// the Microsoft_TrustProvider class.
//
//-----------------------------------------------------------------------------
HRESULT
CTrustPrv::SetProviderProps(IWbemClassObject * pClass)
{
WBEM_VALIDATE_INTF_PTR(pClass);
TRACE(L"\nCTrustPrv::SetProviderProps\n");
HRESULT hr = WBEM_S_NO_ERROR;
do
{
VARIANT var;
hr = pClass->Get(CSTR_PROP_TRUST_LIST_LIFETIME, 0, &var, NULL, NULL);
BREAK_ON_FAIL;
SetTrustListLifetime(var.lVal);
VariantClear(&var);
hr = pClass->Get(CSTR_PROP_TRUST_STATUS_LIFETIME, 0, &var, NULL, NULL);
BREAK_ON_FAIL;
SetTrustStatusLifetime(var.lVal);
VariantClear(&var);
hr = pClass->Get(CSTR_PROP_TRUST_CHECK_LEVEL, 0, &var, NULL, NULL);
BREAK_ON_FAIL;
SetTrustCheckLevel(var.lVal);
VariantClear(&var);
hr = pClass->Get(CSTR_PROP_RETURN_ALL_TRUSTS, 0, &var, NULL, NULL);
BREAK_ON_FAIL;
SetReturnAll(var.boolVal);
VariantClear(&var);
} while (false);
return hr;
}
//+----------------------------------------------------------------------------
//
// Function: GetClass
//
// Synopsis: Determines if the first element of the passed in path is one
// of the valid class names.
//
// Returns: TrustMonClass enum value.
//
//-----------------------------------------------------------------------------
TrustMonClass
GetClass(BSTR strClass)
{
if (_wcsnicmp(strClass, CLASSNAME_STRING_PROVIDER, wcslen(CLASSNAME_STRING_PROVIDER)) == 0)
{
TRACE(L"GetClass returning %s\n", CLASSNAME_STRING_PROVIDER);
return CLASS_PROVIDER;
}
else
{
if (_wcsnicmp(strClass, CLASSNAME_STRING_TRUST, wcslen(CLASSNAME_STRING_TRUST)) == 0)
{
TRACE(L"GetClass returning %s\n", CLASSNAME_STRING_TRUST);
return CLASS_TRUST;
}
else
{
if (_wcsnicmp(strClass, CLASSNAME_STRING_LOCAL, wcslen(CLASSNAME_STRING_LOCAL)) == 0)
{
TRACE(L"GetClass returning %s\n", CLASSNAME_STRING_LOCAL);
return CLASS_LOCAL;
}
else
{
TRACE(L"GetClass returning NO_CLASS\n");
return NO_CLASS;
}
}
}
}
//+----------------------------------------------------------------------------
//
// Method: CTrustPrv::IWbemServices::GetObjectAsync
//
// Synopsis: Return the instance named by strObjectPath.
//
// Returns: WMI error codes
//
//-----------------------------------------------------------------------------
STDMETHODIMP
CTrustPrv::GetObjectAsync(
IN const BSTR strObjectPath,
IN long lFlags,
IN IWbemContext * pCtx,
IN IWbemObjectSink * pResponseHandler)
{
HRESULT hr = WBEM_S_NO_ERROR;
CTrustInfo * pTrust;
BOOL fReverted = FALSE;
TRACE(L"\nCTrustsPrv::GetObjectAsync:\n"
L"\tObject param = %s, flags = 0x%08x\n", strObjectPath, lFlags);
do
{
WBEM_VALIDATE_IN_STRING_PTR(strObjectPath);
WBEM_VALIDATE_INTF_PTR(pCtx);
WBEM_VALIDATE_INTF_PTR(pResponseHandler);
//
// Determine which class is being requested.
// A valid class object path has the form: class_name.key_name="key_value"
//
TrustMonClass Class = GetClass(strObjectPath);
if (NO_CLASS == Class)
{
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
// Isolate the class name from the key name
//
PWSTR pwzInstance;
PWSTR pwzKeyName = wcschr(strObjectPath, L'.');
if (pwzKeyName)
{
// A request without a key name is only valid for a class that
// is defined to have zero or only one dynamic instance (singleton).
//
// Isolate the key name from the class name
//
*pwzKeyName = L'\0'; // overwrite the period with a null
pwzKeyName++; // point to the first char of the key name
}
switch (Class)
{
case CLASS_PROVIDER:
//
// The provider class has no dynamic instances, return a copy of the
// static instance.
//
fReverted = TRUE; // never impersonated
hr = CreateAndSendProv(pResponseHandler);
BREAK_ON_FAIL(hr);
break;
case CLASS_TRUST:
//
// There can be zero or more trusts. Thus the key name and value must
// be specified.
//
CoImpersonateClient();
if (!pwzKeyName)
{
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
pwzInstance = wcschr(pwzKeyName, L'=');
if (!pwzInstance || L'\"' != pwzInstance[1])
{
// No equal sign found or the following char not a quote.
//
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
*pwzInstance = L'\0'; // isolate the key name.
if (_wcsicmp(pwzKeyName, CSTR_PROP_TRUSTED_DOMAIN) != 0)
{
// Key name not correct.
//
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
pwzInstance++; // point to the first quote
if (L'\0' == pwzInstance[1] || L'\"' == pwzInstance[1])
{
// No char following the quote or the next char a second quote
//
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
pwzInstance++; // point to the first char of the instance value;
PWSTR pwzInstEnd;
pwzInstEnd = wcschr(pwzInstance, L'\"');
if (!pwzInstEnd)
{
// No terminating quote.
//
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
*pwzInstEnd = L'\0'; // replace ending quote with a null
if (m_DomainInfo.IsTrustListStale(m_liTrustEnumMaxAge))
{
hr = m_DomainInfo.EnumerateTrusts();
}
BREAK_ON_FAIL(hr);
pTrust = m_DomainInfo.FindTrust(pwzInstance);
BREAK_ON_NULL_(pTrust, hr, WBEM_E_INVALID_OBJECT_PATH);
//
// Verify the trust.
//
if (pTrust->IsVerificationStale(m_liVerifyMaxAge))
{
pTrust->Verify(GetTrustCheckLevel());
}
CoRevertToSelf();
fReverted = TRUE;
//
// Create a new instance of the object
//
hr = CreateAndSendTrustInst(*pTrust,
m_sipClassDefTrustStatus,
pResponseHandler);
BREAK_ON_FAIL(hr);
break;
case CLASS_LOCAL:
//
// The local domain info class has only one instance, return that.
//
fReverted = TRUE; // never impersonated
hr = m_DomainInfo.CreateAndSendInst(pResponseHandler);
BREAK_ON_FAIL(hr);
break;
default:
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
} while(FALSE);
if (!fReverted)
{
CoRevertToSelf();
}
return pResponseHandler->SetStatus(WBEM_STATUS_COMPLETE, hr, NULL, NULL);
}
//+----------------------------------------------------------------------------
//
// Method: CTrustPrv::IWbemServices::CreateInstanceEnumAsync
//
// Synopsis: Start an asyncronous enumeration of the instances of the class.
//
// Returns: WMI error codes
//
//-----------------------------------------------------------------------------
STDMETHODIMP
CTrustPrv::CreateInstanceEnumAsync(
IN const BSTR strClass,
IN long lFlags,
IN IWbemContext *pCtx,
IN IWbemObjectSink *pResponseHandler)
{
TRACE(L"\nCTrustsPrv::CreateInstanceEnumAsync:\n"
L"\tClass param = %s, flags = 0x%08x\n", strClass, lFlags);
HRESULT hr = WBEM_S_NO_ERROR;
do
{
WBEM_VALIDATE_IN_STRING_PTR(strClass);
WBEM_VALIDATE_INTF_PTR(pCtx);
WBEM_VALIDATE_INTF_PTR(pResponseHandler);
//
// Determine which class is being requested.
// A valid class object path has the form: class_name.key_name="key_value"
//
TrustMonClass Class = GetClass(strClass);
if (NO_CLASS == Class)
{
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
CAsyncCallWorker * pWorker;
switch (Class)
{
case CLASS_PROVIDER:
//
// The provider class has no dynamic instances, return a copy of the
// static instance.
//
hr = CreateAndSendProv(pResponseHandler);
BREAK_ON_FAIL(hr);
hr = pResponseHandler->SetStatus(WBEM_STATUS_COMPLETE, hr, NULL, NULL);
BREAK_ON_FAIL(hr);
break;
case CLASS_TRUST:
//
// Spawn the worker thread to enum and return the trust instances.
// Note that the class definition pointer is not add-ref'd here
// because it is add-ref'd separately in the CAsyncCallWorker ctor.
//
pWorker = new CAsyncCallWorker(this,
lFlags,
m_sipClassDefTrustStatus,
pResponseHandler);
BREAK_ON_NULL_(pWorker, hr, WBEM_E_OUT_OF_MEMORY);
uintptr_t hThread;
hThread = _beginthread(CAsyncCallWorker::CreateInstEnum, 0, (PVOID)pWorker);
BREAK_ON_NULL_(hThread != -1, hr, WBEM_E_OUT_OF_MEMORY);
break;
case CLASS_LOCAL:
//
// The local domain info class has only one instance, return that.
//
hr = m_DomainInfo.CreateAndSendInst(pResponseHandler);
BREAK_ON_FAIL(hr);
hr = pResponseHandler->SetStatus(WBEM_STATUS_COMPLETE, hr, NULL, NULL);
BREAK_ON_FAIL(hr);
break;
default:
hr = WBEM_E_INVALID_OBJECT_PATH;
BREAK_ON_FAIL(hr);
}
} while(FALSE);
if (FAILED(hr))
{
return pResponseHandler->SetStatus(WBEM_STATUS_COMPLETE, hr, NULL, NULL);
}
return hr;
}
//+----------------------------------------------------------------------------
//
// Method: CTrustPrv::CreateAndSendProv
//
// Synopsis: Return the provider parameters.
//
//-----------------------------------------------------------------------------
HRESULT
CTrustPrv::CreateAndSendProv(IWbemObjectSink * pResponseHandler)
{
TRACE(L"CTrustsPrv::CreateAndSendProv:\n");
HRESULT hr = WBEM_S_NO_ERROR;
do
{
CComPtr<IWbemClassObject> ipNewInst;
VARIANT var;
VariantInit(&var);
//
// Create a new instance of the WMI class object
//
hr = m_sipClassDefTrustProvider->SpawnInstance(0, &ipNewInst);
BREAK_ON_FAIL;
// Set the TrustListLifetime property value
var.lVal = (long)GetTrustListLifetime();
var.vt = VT_I4;
hr = ipNewInst->Put(CSTR_PROP_TRUST_LIST_LIFETIME, 0, &var, 0);
TRACE(L"\tTrustListLifetime %d\n", var.bstrVal);
BREAK_ON_FAIL;
// Set the TrustStatusLifetime property value
var.lVal = (long)GetTrustStatusLifetime();
hr = ipNewInst->Put(CSTR_PROP_TRUST_STATUS_LIFETIME, 0, &var, 0);
TRACE(L"\tTrustStatusLifetime %d\n", var.bstrVal);
BREAK_ON_FAIL;
// Set the TrustCheckLevel property value
var.lVal = (long)GetTrustCheckLevel();
hr = ipNewInst->Put(CSTR_PROP_TRUST_CHECK_LEVEL, 0, &var, 0);
TRACE(L"\tTrustCheckLevel %d\n", var.bstrVal);
BREAK_ON_FAIL;
// Set the ReturnAll property value
var.boolVal = (GetReturnAll()) ? VARIANT_TRUE : VARIANT_FALSE;
var.vt = VT_BOOL;
hr = ipNewInst->Put(CSTR_PROP_RETURN_ALL_TRUSTS, 0, &var, 0);
TRACE(L"\tReturnAll %d\n", var.bstrVal);
BREAK_ON_FAIL;
//
// Send the object to the caller
//
// [In] param, no need to addref.
IWbemClassObject * pNewInstance = ipNewInst;
hr = pResponseHandler->Indicate(1, &pNewInstance);
BREAK_ON_FAIL;
} while(FALSE);
return hr;
}