2154 lines
66 KiB
C++
2154 lines
66 KiB
C++
/*********************************************************************************************
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Copyright (c) Microsoft Corporation
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Module Name:
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WMI.cpp
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Abstract:
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Common functionlity for dealing with WMI.
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Author:
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Wipro Technologies
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Revision History:
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22-Dec-2000 : Created It.
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24-Apr-2001 : Closing the review comments given by client.
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*********************************************************************************************/
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#include "pch.h"
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#include "wmi.h"
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#include "resource.h"
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//
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// messages
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//
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#define INPUT_PASSWORD GetResString( IDS_STR_INPUT_PASSWORD )
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// error constants
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#define E_SERVER_NOTFOUND 0x800706ba
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//
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// private function prototype(s)
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//
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BOOL IsValidUserEx( LPCWSTR pwszUser );
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HRESULT GetSecurityArguments( IUnknown* pInterface,
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DWORD& dwAuthorization, DWORD& dwAuthentication );
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HRESULT SetInterfaceSecurity( IUnknown* pInterface,
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LPCWSTR pwszServer, LPCWSTR pwszUser,
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LPCWSTR pwszPassword, COAUTHIDENTITY** ppAuthIdentity );
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HRESULT WINAPI SetProxyBlanket( IUnknown* pInterface,
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DWORD dwAuthnSvc, DWORD dwAuthzSvc,
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LPWSTR pwszPrincipal, DWORD dwAuthLevel, DWORD dwImpLevel,
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RPC_AUTH_IDENTITY_HANDLE pAuthInfo, DWORD dwCapabilities );
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HRESULT WINAPI WbemAllocAuthIdentity( LPCWSTR pwszUser, LPCWSTR pwszPassword,
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LPCWSTR pwszDomain, COAUTHIDENTITY** ppAuthIdent );
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HRESULT RegQueryValueWMI( IWbemServices* pWbemServices,
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LPCWSTR pwszMethod, DWORD dwHDefKey,
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LPCWSTR pwszSubKeyName, LPCWSTR pwszValueName, _variant_t& varValue );
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/*********************************************************************************************
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Routine Description:
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Checks wether the User name is a valid one or not
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Arguments:
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[in] LPCWSTR : String containing the user name
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Return Value:
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TRUE on success
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FALSE on failure
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*********************************************************************************************/
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BOOL IsValidUserEx( LPCWSTR pwszUser )
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{
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// local variables
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CHString strUser;
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LONG lPos = 0;
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if ( pwszUser == NULL )
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{
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return TRUE;
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}
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try
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{
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// get user into local memory
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strUser = pwszUser;
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// user name should not be just '\'
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if ( strUser.CompareNoCase( L"\\" ) == 0 )
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{
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return FALSE;
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}
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// user name should not contain invalid characters
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if ( strUser.FindOneOf( L"/[]:|<>+=;,?*" ) != -1 )
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{
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return FALSE;
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}
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// SPECIAL CHECK
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// check for multiple '\' characters in the user name
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lPos = strUser.Find( L'\\' );
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if ( lPos != -1 )
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{
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// '\' character exists in the user name
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// strip off the user info upto first '\' character
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// check for one more '\' in the remaining string
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// if it exists, invalid user
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strUser = strUser.Mid( lPos + 1 );
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lPos = strUser.Find( L'\\' );
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if ( lPos != -1 )
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{
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return FALSE;
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}
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}
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}
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catch( ... )
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{
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SetLastError( E_OUTOFMEMORY );
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return FALSE;
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}
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// user name is valid
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return TRUE;
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}
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/*********************************************************************************************
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Routine Description:
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Checks wether the Server name is a valid one or not
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Arguments:
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[in] LPCWSTR : String containing the user name
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[out] BOOL : Is set to TRUE if the local system is being queried.
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Return Value:
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TRUE on success
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FALSE on failure
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*********************************************************************************************/
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BOOL IsValidServerEx( LPCWSTR pwszServer, BOOL& bLocalSystem )
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{
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// local variables
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CHString strTemp;
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if ( pwszServer == NULL )
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{
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return FALSE;
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}
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// kick-off
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bLocalSystem = FALSE;
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// get a local copy
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strTemp = pwszServer;
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// remove the forward slashes (UNC) if exist in the begining of the server name
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if ( IsUNCFormat( strTemp ) == TRUE )
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{
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strTemp = strTemp.Mid( 2 );
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if ( strTemp.GetLength() == 0 )
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{
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return FALSE;
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}
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}
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// now check if any '\' character appears in the server name. If so error
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if ( strTemp.Find( L'\\' ) != -1 )
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{
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return FALSE;
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}
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// now check if server name is '.' only which represent local system in WMI
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// else determine whether this is a local system or not
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if ( strTemp.CompareNoCase( L"." ) == 0 )
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{
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bLocalSystem = TRUE;
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}
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else
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{
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bLocalSystem = IsLocalSystem( strTemp );
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}
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// inform that server name is valid
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return TRUE;
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}
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/*********************************************************************************************
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Routine Description:
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Initializes the COM library
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Arguments:
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[in] IWbemLocator : pointer to the IWbemLocator
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Return Value:
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TRUE on success
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FALSE on failure
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*********************************************************************************************/
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BOOL InitializeCom( IWbemLocator** ppLocator )
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{
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// local variables
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HRESULT hr;
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BOOL bResult = FALSE;
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try
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{
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// assume that connection to WMI namespace is failed
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bResult = FALSE;
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// initialize the COM library
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SAFE_EXECUTE( CoInitializeEx( NULL, COINIT_APARTMENTTHREADED ) );
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// initialize the security
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SAFE_EXECUTE( CoInitializeSecurity( NULL, -1, NULL, NULL,
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RPC_C_AUTHN_LEVEL_NONE, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, 0 ) );
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// create the locator and get the pointer to the interface of IWbemLocator
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SAFE_RELEASE( *ppLocator ); // safe side
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SAFE_EXECUTE( CoCreateInstance( CLSID_WbemLocator, NULL, CLSCTX_INPROC_SERVER,
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IID_IWbemLocator, ( LPVOID* ) ppLocator ) );
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// initialization successful
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bResult = TRUE;
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}
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catch( _com_error& e )
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{
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// save the WMI error
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WMISaveError( e );
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}
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// return the result;
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return bResult;
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}
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/*********************************************************************************************
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Routine Description:
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This function makes a connection to WMI.
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Arguments:
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[in] IWbemLocator : pointer to the IWbemLocator
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[in] IWbemServices : pointer to the IWbemServices
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[in] LPCWSTR : string containing the server name
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[in] LPCWSTR : string containing the User name
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[in] LPCWSTR : string containing the password
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[in] COAUTHIDENTITY : pointer to AUTHIDENTITY structure
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[in] BOOL : set to TRUE if we should try to connect with
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current credentials
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[in] LPCWSTR : string containing the namespace to connect to
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[out] HRESULT : the hResult value returned
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[out] BOOL : set to TRUE if we are querying for the local system
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Return Value:
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TRUE on success
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FALSE on failure
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*********************************************************************************************/
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BOOL ConnectWmi( IWbemLocator* pLocator,
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IWbemServices** ppServices,
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LPCWSTR pwszServer, LPCWSTR pwszUser, LPCWSTR pwszPassword,
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COAUTHIDENTITY** ppAuthIdentity, BOOL bCheckWithNullPwd,
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LPCWSTR pwszNamespace, HRESULT* phr, BOOL* pbLocalSystem )
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{
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// local variables
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HRESULT hr;
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BOOL bResult = FALSE;
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BOOL bLocalSystem = FALSE;
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_bstr_t bstrServer;
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_bstr_t bstrNamespace;
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_bstr_t bstrUser, bstrPassword;
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// kick-off
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if ( pbLocalSystem != NULL )
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{
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*pbLocalSystem = FALSE;
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}
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// ...
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if ( phr != NULL )
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{
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*phr = NO_ERROR;
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}
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try
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{
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// clear the error
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SetLastError( WBEM_S_NO_ERROR );
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// assume that connection to WMI namespace is failed
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bResult = FALSE;
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// check whether locator object exists or not
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// if not exists, return
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if ( pLocator == NULL )
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{
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if ( phr != NULL )
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{
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*phr = WBEM_E_INVALID_PARAMETER;
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}
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// return failure
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return FALSE;
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}
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// validate the server name
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// NOTE: The error being raised in custom define for '0x800706ba' value
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// The message that will be displayed in "The RPC server is unavailable."
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if ( IsValidServerEx( pwszServer, bLocalSystem ) == FALSE )
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{
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_com_issue_error( E_SERVER_NOTFOUND );
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}
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// validate the user name
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if ( IsValidUserEx( pwszUser ) == FALSE )
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{
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_com_issue_error( ERROR_NO_SUCH_USER );
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}
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// prepare namespace
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bstrNamespace = pwszNamespace; // name space
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if ( pwszServer != NULL && bLocalSystem == FALSE )
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{
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// get the server name
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bstrServer = pwszServer;
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// prepare the namespace
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// NOTE: check for the UNC naming format of the server and do
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if ( IsUNCFormat( pwszServer ) == TRUE )
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{
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bstrNamespace = bstrServer + L"\\" + pwszNamespace;
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}
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else
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{
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bstrNamespace = L"\\\\" + bstrServer + L"\\" + pwszNamespace;
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}
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// user credentials
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if ( pwszUser != NULL && lstrlen( pwszUser ) != 0 )
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{
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// copy the user name
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bstrUser = pwszUser;
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// if password is empty string and if we need to check with
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// null password, then do not set the password and try
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bstrPassword = pwszPassword;
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if ( bCheckWithNullPwd == TRUE && bstrPassword.length() == 0 )
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{
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bstrPassword = (LPWSTR) NULL;
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}
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}
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}
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// release the existing services object ( to be in safer side )
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SAFE_RELEASE( *ppServices );
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// connect to the remote system's WMI
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// there is a twist here ...
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// do not trap the ConnectServer function failure into exception
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// instead handle that action manually
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// by default try the ConnectServer function as the information which we have
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// in our hands at this point. If the ConnectServer is failed,
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// check whether password variable has any contents are not ... if no contents
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// check with "" (empty) password ... this might pass in this situation ..
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// if this call is also failed ... nothing is there that we can do ... throw the exception
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hr = pLocator->ConnectServer( bstrNamespace,
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bstrUser, bstrPassword, 0L, 0L, NULL, NULL, ppServices );
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if ( FAILED( hr ) )
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{
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//
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// special case ...
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// check whether password exists or not
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// NOTE: do not check for 'WBEM_E_ACCESS_DENIED'
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// this error code says that user with the current credentials is not
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// having access permisions to the 'namespace'
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if ( hr == E_ACCESSDENIED )
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{
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// check if we tried to connect to the system using null password
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// if so, then try connecting to the remote system with empty string
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if ( bCheckWithNullPwd == TRUE &&
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bstrUser.length() != 0 && bstrPassword.length() == 0 )
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{
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// now invoke with ...
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hr = pLocator->ConnectServer( bstrNamespace,
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bstrUser, _bstr_t( L"" ), 0L, 0L, NULL, NULL, ppServices );
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}
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}
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else if ( hr == WBEM_E_LOCAL_CREDENTIALS )
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{
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// credentials were passed to the local system.
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// So ignore the credentials and try to reconnect
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bLocalSystem = TRUE;
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bstrUser = (LPWSTR) NULL;
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bstrPassword = (LPWSTR) NULL;
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bstrNamespace = pwszNamespace; // name space
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hr = pLocator->ConnectServer( bstrNamespace,
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NULL, NULL, 0L, 0L, NULL, NULL, ppServices );
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}
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// now check the result again .. if failed .. ummmm..
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if ( FAILED( hr ) )
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{
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_com_issue_error( hr );
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}
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else
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{
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bstrPassword = L"";
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}
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}
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// set the security at the interface level also
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SAFE_EXECUTE( SetInterfaceSecurity( *ppServices,
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pwszServer, bstrUser, bstrPassword, ppAuthIdentity ) );
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// connection to WMI is successful
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bResult = TRUE;
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// save the hr value if needed by the caller
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if ( phr != NULL )
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{
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*phr = WBEM_S_NO_ERROR;
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}
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}
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catch( _com_error& e )
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{
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// save the error
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WMISaveError( e );
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// save the hr value if needed by the caller
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if ( phr != NULL )
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{
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*phr = e.Error();
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}
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}
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// ...
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if ( pbLocalSystem != NULL )
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{
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*pbLocalSystem = bLocalSystem;
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}
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// return the result
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return bResult;
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}
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/*********************************************************************************************
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Routine Description:
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This function is a wrapper function for the ConnectWmi function.
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Arguments:
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[in] IWbemLocator : pointer to the IWbemLocator
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[in] IWbemServices : pointer to the IWbemServices
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[in] LPCWSTR : string containing the server name
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[in] LPCWSTR : string containing the User name
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[in] LPCWSTR : string containing the password
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[in] COAUTHIDENTITY : pointer to AUTHIDENTITY structure
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[in] BOOL : set to TRUE if we should try to connect with
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current credentials
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[in] LPCWSTR : string containing the namespace to connect to
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[out] HRESULT : the hResult value returned
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[out] BOOL : set to TRUE if we are querying for the local system
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Return Value:
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TRUE on success
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FALSE on failure
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*********************************************************************************************/
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BOOL ConnectWmiEx( IWbemLocator* pLocator,
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IWbemServices** ppServices,
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LPCWSTR pwszServer, CHString& strUserName, CHString& strPassword,
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COAUTHIDENTITY** ppAuthIdentity,
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BOOL bNeedPassword, LPCWSTR pwszNamespace, BOOL* pbLocalSystem )
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{
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// local variables
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HRESULT hr;
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DWORD dwSize = 0;
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BOOL bResult = FALSE;
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LPWSTR pwszPassword = NULL;
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CHString strBuffer = NULL_STRING;
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// clear the error .. if any
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SetLastError( WBEM_S_NO_ERROR );
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// sometime users want the utility to prompt for the password
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// check what user wants the utility to do
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if ( bNeedPassword == TRUE && strPassword.Compare( L"*" ) == 0 )
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{
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// user wants the utility to prompt for the password
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// so skip this part and let the flow directly jump the password acceptance part
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}
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else
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{
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// try to establish connection to the remote system with the credentials supplied
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if ( strUserName.GetLength() == 0 )
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{
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// user name is empty
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// so, it is obvious that password will also be empty
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// even if password is specified, we have to ignore that
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bResult = ConnectWmi( pLocator, ppServices,
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pwszServer, NULL, NULL, ppAuthIdentity, FALSE, pwszNamespace, &hr, pbLocalSystem );
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}
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else
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{
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// credentials were supplied
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// but password might not be specified ... so check and act accordingly
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LPCWSTR pwszTemp = NULL;
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BOOL bCheckWithNull = TRUE;
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if ( bNeedPassword == FALSE )
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{
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pwszTemp = strPassword;
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bCheckWithNull = FALSE;
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}
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// ...
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bResult = ConnectWmi( pLocator, ppServices, pwszServer,
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strUserName, pwszTemp, ppAuthIdentity, bCheckWithNull, pwszNamespace, &hr, pbLocalSystem );
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}
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// check the result ... if successful in establishing connection ... return
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if ( bResult == TRUE )
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{
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return TRUE;
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}
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// now check the kind of error occurred
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switch( hr )
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{
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case E_ACCESSDENIED:
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break;
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case WBEM_E_LOCAL_CREDENTIALS:
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// needs to do special processing
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break;
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case WBEM_E_ACCESS_DENIED:
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default:
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// NOTE: do not check for 'WBEM_E_ACCESS_DENIED'
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// this error code says that user with the current credentials is not
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// having access permisions to the 'namespace'
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WMISaveError( hr );
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return FALSE; // no use of accepting the password .. return failure
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break;
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}
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|
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// if failed in establishing connection to the remote terminal
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// even if the password is specifed, then there is nothing to do ... simply return failure
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if ( bNeedPassword == FALSE )
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{
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return FALSE;
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}
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}
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|
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// check whether user name is specified or not
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// if not, get the local system's current user name under whose credentials, the process
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// is running
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if ( strUserName.GetLength() == 0 )
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{
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// sub-local variables
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LPWSTR pwszUserName = NULL;
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|
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try
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{
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// get the required buffer
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pwszUserName = strUserName.GetBufferSetLength( MAX_STRING_LENGTH );
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}
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catch( ... )
|
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{
|
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SetLastError( E_OUTOFMEMORY );
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SaveLastError();
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return FALSE;
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}
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|
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// get the user name
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DWORD dwUserLength = MAX_STRING_LENGTH;
|
|
if ( GetUserNameEx( NameSamCompatible, pwszUserName, &dwUserLength ) == FALSE )
|
|
{
|
|
// error occured while trying to get the current user info
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// release the extra buffer allocated
|
|
strUserName.ReleaseBuffer();
|
|
}
|
|
|
|
try
|
|
{
|
|
// get the required buffer
|
|
pwszPassword = strPassword.GetBufferSetLength( MAX_STRING_LENGTH );
|
|
}
|
|
catch( ... )
|
|
{
|
|
SetLastError( E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// accept the password from the user
|
|
strBuffer.Format( INPUT_PASSWORD, strUserName );
|
|
WriteConsoleW( GetStdHandle( STD_ERROR_HANDLE ),
|
|
strBuffer, strBuffer.GetLength(), &dwSize, NULL );
|
|
|
|
bResult = GetPassword( pwszPassword, MAX_PASSWORD_LENGTH );
|
|
if ( bResult != TRUE )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// release the buffer allocated for password
|
|
strPassword.ReleaseBuffer();
|
|
|
|
// now again try to establish the connection using the currently
|
|
// supplied credentials
|
|
bResult = ConnectWmi( pLocator, ppServices, pwszServer,
|
|
strUserName, strPassword, ppAuthIdentity, FALSE, pwszNamespace, NULL, pbLocalSystem );
|
|
|
|
// return the failure
|
|
return bResult;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function gets the values for the security services.
|
|
|
|
Arguments:
|
|
|
|
[in] IUnknown : pointer to the IUnkown interface
|
|
[out] DWORD : to hold the authentication service value
|
|
[out] DWORD : to hold the authorization service value
|
|
|
|
Return Value:
|
|
|
|
HRESULT
|
|
*********************************************************************************************/
|
|
HRESULT GetSecurityArguments( IUnknown* pInterface,
|
|
DWORD& dwAuthorization, DWORD& dwAuthentication )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
DWORD dwAuthnSvc = 0, dwAuthzSvc = 0;
|
|
IClientSecurity* pClientSecurity = NULL;
|
|
|
|
// try to get the client security services values if possible
|
|
hr = pInterface->QueryInterface( IID_IClientSecurity, (void**) &pClientSecurity );
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
// got the client security interface
|
|
// now try to get the security services values
|
|
hr = pClientSecurity->QueryBlanket( pInterface,
|
|
&dwAuthnSvc, &dwAuthzSvc, NULL, NULL, NULL, NULL, NULL );
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
// we've got the values from the interface
|
|
dwAuthentication = dwAuthnSvc;
|
|
dwAuthorization = dwAuthzSvc;
|
|
}
|
|
|
|
// release the client security interface
|
|
SAFE_RELEASE( pClientSecurity );
|
|
}
|
|
|
|
// return always success
|
|
return S_OK;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function sets the interface security parameters.
|
|
|
|
Arguments:
|
|
|
|
[in] IUnknown : pointer to the IUnkown interface
|
|
[in] LPCWSTR : string containing the server name
|
|
[in] LPCWSTR : string containing the User name
|
|
[in] LPCWSTR : string containing the password
|
|
[in] COAUTHIDENTITY : pointer to AUTHIDENTITY structure
|
|
|
|
Return Value:
|
|
|
|
HRESULT
|
|
*********************************************************************************************/
|
|
HRESULT SetInterfaceSecurity( IUnknown* pInterface,
|
|
LPCWSTR pwszServer, LPCWSTR pwszUser,
|
|
LPCWSTR pwszPassword, COAUTHIDENTITY** ppAuthIdentity )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
CHString strUser;
|
|
CHString strDomain;
|
|
LPCWSTR pwszUserArg = NULL;
|
|
LPCWSTR pwszDomainArg = NULL;
|
|
DWORD dwAuthorization = RPC_C_AUTHZ_NONE;
|
|
DWORD dwAuthentication = RPC_C_AUTHN_WINNT;
|
|
|
|
// check the interface
|
|
if ( pInterface == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
// check the authentity strcuture ... if authentity structure is already ready
|
|
// simply invoke the 2nd version of SetInterfaceSecurity
|
|
if ( *ppAuthIdentity != NULL )
|
|
{
|
|
return SetInterfaceSecurity( pInterface, *ppAuthIdentity );
|
|
}
|
|
|
|
// get the current security argument value
|
|
/*hr = GetSecurityArguments( pInterface, dwAuthorization, dwAuthentication );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return hr;
|
|
}*/
|
|
|
|
// If we are doing trivial case, just pass in a null authenication structure
|
|
// for which the current logged in user's credentials will be considered
|
|
if ( pwszUser == NULL && pwszPassword == NULL )
|
|
{
|
|
// set the security
|
|
hr = SetProxyBlanket( pInterface, dwAuthentication, dwAuthorization,
|
|
NULL, RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE );
|
|
|
|
// return the result
|
|
return hr;
|
|
}
|
|
|
|
// parse and find out if the user name contains the domain name
|
|
// if contains, extract the domain value from it
|
|
LONG lPos = -1;
|
|
strDomain = L"";
|
|
strUser = pwszUser;
|
|
if ( ( lPos = strUser.Find( L'\\' ) ) != -1 )
|
|
{
|
|
// user name contains domain name ... domain\user format
|
|
strDomain = strUser.Left( lPos );
|
|
strUser = strUser.Mid( lPos + 1 );
|
|
}
|
|
else if ( ( lPos = strUser.Find( L'@' ) ) != -1 )
|
|
{
|
|
// NEED TO IMPLEMENT THIS ... IF NEEDED
|
|
// This implementation needs to be done if WMI does not support
|
|
// UPN name formats directly and if we have to split the
|
|
// name(user@domain)
|
|
}
|
|
else
|
|
{
|
|
// server itself is the domain
|
|
// NOTE: NEED TO DO SOME R & D ON BELOW COMMENTED LINE
|
|
// strDomain = pwszServer;
|
|
}
|
|
|
|
// get the domain info if it exists only
|
|
if ( strDomain.GetLength() != 0 )
|
|
{
|
|
pwszDomainArg = strDomain;
|
|
}
|
|
|
|
// get the user info if it exists only
|
|
if ( strUser.GetLength() != 0 )
|
|
{
|
|
pwszUserArg = strUser;
|
|
}
|
|
|
|
// check if authenication info is available or not ...
|
|
// initialize the security authenication information ... UNICODE VERSION STRUCTURE
|
|
if ( ppAuthIdentity == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
else if ( *ppAuthIdentity == NULL )
|
|
{
|
|
hr = WbemAllocAuthIdentity( pwszUserArg, pwszPassword, pwszDomainArg, ppAuthIdentity );
|
|
if ( hr != S_OK )
|
|
{
|
|
return hr;
|
|
}
|
|
}
|
|
|
|
// set the security information to the interface
|
|
hr = SetProxyBlanket( pInterface, dwAuthentication, dwAuthorization, NULL,
|
|
RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, *ppAuthIdentity, EOAC_NONE );
|
|
|
|
// return the result
|
|
return hr;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function sets the interface security parameters.
|
|
|
|
Arguments:
|
|
|
|
[in] IUnknown : pointer to the IUnkown interface
|
|
[in] COAUTHIDENTITY : pointer to AUTHIDENTITY structure
|
|
|
|
Return Value:
|
|
|
|
HRESULT
|
|
*********************************************************************************************/
|
|
HRESULT SetInterfaceSecurity( IUnknown* pInterface, COAUTHIDENTITY* pAuthIdentity )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
LPWSTR pwszDomain = NULL;
|
|
DWORD dwAuthorization = RPC_C_AUTHZ_NONE;
|
|
DWORD dwAuthentication = RPC_C_AUTHN_WINNT;
|
|
|
|
// check the interface
|
|
if ( pInterface == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
// get the current security argument value
|
|
hr = GetSecurityArguments( pInterface, dwAuthorization, dwAuthentication );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return hr;
|
|
}
|
|
|
|
// set the security information to the interface
|
|
hr = SetProxyBlanket( pInterface, dwAuthentication, dwAuthorization, NULL,
|
|
RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, pAuthIdentity, EOAC_NONE );
|
|
|
|
// return the result
|
|
return hr;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function sets the authentication information (the security blanket)
|
|
that will be used to make calls.
|
|
|
|
Arguments:
|
|
|
|
[in] IUnknown : pointer to the IUnkown interface
|
|
[in] DWORD : contains the authentication service to use
|
|
[in] DWORD : contains the authorization service to use
|
|
[in] LPWSTR : the server principal name to use
|
|
[in] DWORD : contains the authentication level to use
|
|
[in] DWORD : contains the impersonation level to use
|
|
[in] RPC_AUTH_IDENTITY_HANDLE : pointer to the identity of the client
|
|
[in] DWORD : contains the capability flags
|
|
|
|
Return Value:
|
|
|
|
HRESULT
|
|
*********************************************************************************************/
|
|
HRESULT WINAPI SetProxyBlanket( IUnknown* pInterface,
|
|
DWORD dwAuthnSvc, DWORD dwAuthzSvc,
|
|
LPWSTR pwszPrincipal, DWORD dwAuthLevel, DWORD dwImpLevel,
|
|
RPC_AUTH_IDENTITY_HANDLE pAuthInfo, DWORD dwCapabilities )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
IUnknown * pUnknown = NULL;
|
|
IClientSecurity * pClientSecurity = NULL;
|
|
|
|
// get the IUnknown interface ... to check whether this is a valid interface or not
|
|
hr = pInterface->QueryInterface( IID_IUnknown, (void **) &pUnknown );
|
|
if ( hr != S_OK )
|
|
{
|
|
return hr;
|
|
}
|
|
|
|
// now get the client security interface
|
|
hr = pInterface->QueryInterface( IID_IClientSecurity, (void **) &pClientSecurity );
|
|
if ( hr != S_OK )
|
|
{
|
|
SAFE_RELEASE( pUnknown );
|
|
return hr;
|
|
}
|
|
|
|
//
|
|
// Can't set pAuthInfo if cloaking requested, as cloaking implies
|
|
// that the current proxy identity in the impersonated thread (rather
|
|
// than the credentials supplied explicitly by the RPC_AUTH_IDENTITY_HANDLE)
|
|
// is to be used.
|
|
// See MSDN info on CoSetProxyBlanket for more details.
|
|
//
|
|
if ( dwCapabilities & (EOAC_STATIC_CLOAKING | EOAC_DYNAMIC_CLOAKING) )
|
|
{
|
|
pAuthInfo = NULL;
|
|
}
|
|
|
|
// now set the security
|
|
hr = pClientSecurity->SetBlanket( pInterface, dwAuthnSvc, dwAuthzSvc, pwszPrincipal,
|
|
dwAuthLevel, dwImpLevel, pAuthInfo, dwCapabilities );
|
|
if( FAILED( hr ) )
|
|
{
|
|
SAFE_RELEASE( pUnknown );
|
|
SAFE_RELEASE( pClientSecurity );
|
|
return hr;
|
|
}
|
|
|
|
// release the security interface
|
|
SAFE_RELEASE( pClientSecurity );
|
|
|
|
// we should check the auth identity structure. if exists .. set for IUnknown also
|
|
if ( pAuthInfo != NULL )
|
|
{
|
|
hr = pUnknown->QueryInterface( IID_IClientSecurity, (void **) &pClientSecurity );
|
|
if ( hr == S_OK )
|
|
{
|
|
// set security authentication
|
|
hr = pClientSecurity->SetBlanket( pUnknown, dwAuthnSvc, dwAuthzSvc, pwszPrincipal,
|
|
dwAuthLevel, dwImpLevel, pAuthInfo, dwCapabilities );
|
|
|
|
// release
|
|
SAFE_RELEASE( pClientSecurity );
|
|
}
|
|
else if ( hr == E_NOINTERFACE )
|
|
{
|
|
hr = S_OK; // ignore no interface errors
|
|
}
|
|
}
|
|
|
|
// release the IUnknown
|
|
SAFE_RELEASE( pUnknown );
|
|
|
|
// return the result
|
|
return hr;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function allocates memory for the AUTHIDENTITY structure.
|
|
|
|
Arguments:
|
|
|
|
[in] LPCWSTR : string containing the user name
|
|
[in] LPCWSTR : string containing the password
|
|
[in] LPCWSTR : string containing the domain name
|
|
[out] COAUTHIDENTITY : pointer to the pointer to AUTHIDENTITY structure
|
|
|
|
Return Value:
|
|
|
|
HRESULT
|
|
*********************************************************************************************/
|
|
HRESULT WINAPI WbemAllocAuthIdentity( LPCWSTR pwszUser, LPCWSTR pwszPassword,
|
|
LPCWSTR pwszDomain, COAUTHIDENTITY** ppAuthIdent )
|
|
{
|
|
// local variables
|
|
COAUTHIDENTITY* pAuthIdent = NULL;
|
|
|
|
// validate the input parameter
|
|
if ( ppAuthIdent == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
// allocation thru COM API
|
|
pAuthIdent = ( COAUTHIDENTITY* ) CoTaskMemAlloc( sizeof( COAUTHIDENTITY ) );
|
|
if ( NULL == pAuthIdent )
|
|
{
|
|
return WBEM_E_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// init with 0's
|
|
ZeroMemory( ( void* ) pAuthIdent, sizeof( COAUTHIDENTITY ) );
|
|
|
|
//
|
|
// Allocate needed memory and copy in data. Cleanup if anything goes wrong
|
|
|
|
// user
|
|
if ( pwszUser != NULL )
|
|
{
|
|
// allocate memory for user
|
|
LONG lLength = wcslen( pwszUser );
|
|
pAuthIdent->User = ( LPWSTR ) CoTaskMemAlloc( (lLength + 1) * sizeof( WCHAR ) );
|
|
if ( pAuthIdent->User == NULL )
|
|
{
|
|
WbemFreeAuthIdentity( &pAuthIdent );
|
|
return WBEM_E_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// set the length and do copy contents
|
|
pAuthIdent->UserLength = lLength;
|
|
wcscpy( pAuthIdent->User, pwszUser );
|
|
}
|
|
|
|
// domain
|
|
if ( pwszDomain != NULL )
|
|
{
|
|
// allocate memory for domain
|
|
LONG lLength = wcslen( pwszDomain );
|
|
pAuthIdent->Domain = ( LPWSTR ) CoTaskMemAlloc( (lLength + 1) * sizeof( WCHAR ) );
|
|
if ( pAuthIdent->Domain == NULL )
|
|
{
|
|
WbemFreeAuthIdentity( &pAuthIdent );
|
|
return WBEM_E_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// set the length and do copy contents
|
|
pAuthIdent->DomainLength = lLength;
|
|
wcscpy( pAuthIdent->Domain, pwszDomain );
|
|
}
|
|
|
|
// passsord
|
|
if ( pwszPassword != NULL )
|
|
{
|
|
// allocate memory for passsord
|
|
LONG lLength = wcslen( pwszPassword );
|
|
pAuthIdent->Password = ( LPWSTR ) CoTaskMemAlloc( (lLength + 1) * sizeof( WCHAR ) );
|
|
if ( pAuthIdent->Password == NULL )
|
|
{
|
|
WbemFreeAuthIdentity( &pAuthIdent );
|
|
return WBEM_E_OUT_OF_MEMORY;
|
|
}
|
|
|
|
// set the length and do copy contents
|
|
pAuthIdent->PasswordLength = lLength;
|
|
wcscpy( pAuthIdent->Password, pwszPassword );
|
|
}
|
|
|
|
// type of the structure
|
|
pAuthIdent->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
|
|
|
|
// final set the address to out parameter
|
|
*ppAuthIdent = pAuthIdent;
|
|
|
|
// return result
|
|
return S_OK;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function releases the memory allocated for the AUTHIDENTITY structure.
|
|
|
|
Arguments:
|
|
|
|
[in] COAUTHIDENTITY : pointer to the pointer to AUTHIDENTITY structure
|
|
|
|
Return Value:
|
|
|
|
None
|
|
*********************************************************************************************/
|
|
VOID WINAPI WbemFreeAuthIdentity( COAUTHIDENTITY** ppAuthIdentity )
|
|
{
|
|
// make sure we have a pointer, then walk the structure members and cleanup.
|
|
if ( *ppAuthIdentity != NULL )
|
|
{
|
|
// free the memory allocated for user
|
|
if ( (*ppAuthIdentity)->User != NULL )
|
|
{
|
|
CoTaskMemFree( (*ppAuthIdentity)->User );
|
|
}
|
|
|
|
// free the memory allocated for password
|
|
if ( (*ppAuthIdentity)->Password != NULL )
|
|
{
|
|
CoTaskMemFree( (*ppAuthIdentity)->Password );
|
|
}
|
|
|
|
// free the memory allocated for domain
|
|
if ( (*ppAuthIdentity)->Domain != NULL )
|
|
{
|
|
CoTaskMemFree( (*ppAuthIdentity)->Domain );
|
|
}
|
|
|
|
// final the structure
|
|
CoTaskMemFree( *ppAuthIdentity );
|
|
}
|
|
|
|
// set to NULL
|
|
*ppAuthIdentity = NULL;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function saves the description of the last error returned by WMI
|
|
|
|
Arguments:
|
|
|
|
HRESULT : The last return value from WMI
|
|
|
|
Return Value:
|
|
|
|
NONE
|
|
*********************************************************************************************/
|
|
VOID WMISaveError( HRESULT hrError )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
CHString strBuffer = NULL_STRING;
|
|
IWbemStatusCodeText* pWbemStatus = NULL;
|
|
|
|
// if the error is win32 based, choose FormatMessage to get the message
|
|
switch( hrError )
|
|
{
|
|
case E_ACCESSDENIED: // Message: "Access Denied"
|
|
case ERROR_NO_SUCH_USER: // Message: "The specified user does not exist."
|
|
{
|
|
// change the error message to "Logon failure: unknown user name or bad password."
|
|
if ( hrError == E_ACCESSDENIED )
|
|
{
|
|
hrError = ERROR_LOGON_FAILURE;
|
|
}
|
|
|
|
// ...
|
|
SetLastError( hrError );
|
|
SaveLastError();
|
|
return;
|
|
}
|
|
}
|
|
|
|
try
|
|
{
|
|
// get the pointer to buffer
|
|
LPWSTR pwszBuffer = NULL;
|
|
pwszBuffer = strBuffer.GetBufferSetLength( MAX_STRING_LENGTH );
|
|
|
|
// get the wbem specific status code text
|
|
hr = CoCreateInstance( CLSID_WbemStatusCodeText,
|
|
NULL, CLSCTX_INPROC_SERVER, IID_IWbemStatusCodeText, (LPVOID*) &pWbemStatus );
|
|
|
|
// check whether we got the interface or not
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
// get the error message
|
|
BSTR bstr = NULL;
|
|
hr = pWbemStatus->GetErrorCodeText( hrError, 0, 0, &bstr );
|
|
if ( SUCCEEDED( hr ) )
|
|
{
|
|
// get the error message in proper format
|
|
GetCompatibleStringFromUnicode( bstr, pwszBuffer, MAX_STRING_LENGTH );
|
|
|
|
//
|
|
// supress all the new-line characters and add '.' at the end ( if not exists )
|
|
LPWSTR pwszTemp = NULL;
|
|
pwszTemp = wcstok( pwszBuffer, L"\r\n" );
|
|
if ( *( pwszTemp + lstrlenW( pwszTemp ) - 1 ) != L'.' )
|
|
{
|
|
lstrcatW( pwszTemp, L"." );
|
|
}
|
|
|
|
// free the BSTR
|
|
SysFreeString( bstr );
|
|
bstr = NULL;
|
|
|
|
// now release status code interface
|
|
SAFE_RELEASE( pWbemStatus );
|
|
}
|
|
else
|
|
{
|
|
// failed to get the error message ... get the com specific error message
|
|
_com_issue_error( hrError );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// failed to get the error message ... get the com specific error message
|
|
_com_issue_error( hrError );
|
|
}
|
|
|
|
// release the buffer
|
|
strBuffer.ReleaseBuffer();
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
try
|
|
{
|
|
// get the error message
|
|
strBuffer.ReleaseBuffer();
|
|
if ( e.ErrorMessage() != NULL )
|
|
strBuffer = e.ErrorMessage();
|
|
}
|
|
catch( ... )
|
|
{
|
|
SetLastError( E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
}
|
|
}
|
|
catch( ... )
|
|
{
|
|
SetLastError( E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return;
|
|
}
|
|
|
|
// set the reason
|
|
strBuffer += L"\n";
|
|
SetReason( strBuffer );
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : property name
|
|
[out] _variant_t : value of the property
|
|
|
|
Return Value:
|
|
|
|
HRESULT
|
|
*********************************************************************************************/
|
|
HRESULT PropertyGet( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, _variant_t& varValue )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
VARIANT vtValue;
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
try
|
|
{
|
|
// initialize the variant and then get the value of the specified property
|
|
VariantInit( &vtValue );
|
|
hr = pWmiObject->Get( _bstr_t( pwszProperty ), 0, &vtValue, NULL, NULL );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
// clear the variant variable
|
|
VariantClear( &vtValue );
|
|
|
|
// failed to get the value for the property
|
|
return hr;
|
|
}
|
|
|
|
// set the value
|
|
varValue = vtValue;
|
|
|
|
// clear the variant variable
|
|
VariantClear( &vtValue );
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
return e.Error();
|
|
}
|
|
|
|
// inform success
|
|
return S_OK;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object in string format
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[out] CHString : variable to hold the retrieved property
|
|
[in] LPCWSTR : string containing the default value for the property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL PropertyGet( IWbemClassObject* pWmiObject,
|
|
LPCWSTR pwszProperty, CHString& strValue, LPCWSTR pwszDefault )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
_variant_t var;
|
|
|
|
// first copy the default value
|
|
strValue = pwszDefault;
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the property value
|
|
hr = PropertyGet( pWmiObject, pwszProperty, var );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
try
|
|
{
|
|
// get the value
|
|
if ( var.vt != VT_NULL && var.vt != VT_EMPTY )
|
|
{
|
|
strValue = (LPCWSTR) _bstr_t( var );
|
|
}
|
|
}
|
|
catch( ... )
|
|
{
|
|
SetLastError( E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object in dword format
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[out] DWORD : variable to hold the retrieved property
|
|
[in] DWORD : dword containing the default value for the property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL PropertyGet( IWbemClassObject* pWmiObject,
|
|
LPCWSTR pwszProperty, DWORD& dwValue, DWORD dwDefault )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
_variant_t var;
|
|
|
|
// first set the defaul value
|
|
dwValue = dwDefault;
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value of the property
|
|
hr = PropertyGet( pWmiObject, pwszProperty, var );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the process id from the variant
|
|
if ( var.vt != VT_NULL && var.vt != VT_EMPTY )
|
|
{
|
|
dwValue = (LONG) var;
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object in bool format
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[out] BOOL : variable to hold the retrieved property
|
|
[in] BOOL : bool containing the default value for the property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL PropertyGet( IWbemClassObject* pWmiObject,
|
|
LPCWSTR pwszProperty, BOOL& bValue, BOOL bDefault )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
_variant_t var;
|
|
|
|
// first set the default value
|
|
bValue = bDefault;
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value of the property
|
|
hr = PropertyGet( pWmiObject, pwszProperty, var );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the process id from the variant
|
|
if ( var.vt != VT_NULL && var.vt != VT_EMPTY )
|
|
{
|
|
bValue = var.boolVal;
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object in ulongulong format
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[out] ULONGULONG : variable to hold the retrieved property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL PropertyGet( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, ULONGLONG& ullValue )
|
|
{
|
|
// local variables
|
|
CHString str;
|
|
|
|
// first set the default value
|
|
ullValue = 1;
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value of the property
|
|
if ( PropertyGet( pWmiObject, pwszProperty, str, _T( "0" ) ) == FALSE )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the 64-bit value
|
|
ullValue = _wtoi64( str );
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object in wbemtime format
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[out] WBEMTime : variable to hold the retrieved property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL PropertyGet( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, WBEMTime& wbemtime )
|
|
{
|
|
// local variables
|
|
CHString str;
|
|
|
|
// Clear method sets the time in the WBEMTime object to an invalid time.
|
|
wbemtime.Clear();
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value of the property
|
|
if ( PropertyGet( pWmiObject, pwszProperty, str, _T( "0" ) ) == FALSE )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
try
|
|
{
|
|
// convert into the time value
|
|
wbemtime = _bstr_t( str );
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
return FALSE;
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Gets the value of the property from the WMI class object in systemtime format
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[out] WBEMTime : variable to hold the retrieved property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
|
|
*********************************************************************************************/
|
|
BOOL PropertyGet( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, SYSTEMTIME& systime )
|
|
{
|
|
// local variables
|
|
CHString strTime;
|
|
|
|
// check with object and property passed to the function are valid or not
|
|
// if not, return failure
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value of the property
|
|
// 16010101000000.000000+000 is the default time
|
|
if ( PropertyGet( pWmiObject, pwszProperty, strTime, _T( "16010101000000.000000+000" ) ) == FALSE )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// prepare the systemtime structure
|
|
// yyyymmddHHMMSS.mmmmmmsUUU
|
|
systime.wYear = (WORD) AsLong( strTime.Left( 4 ), 10 );
|
|
systime.wMonth = (WORD) AsLong( strTime.Mid( 4, 2 ), 10 );
|
|
systime.wDayOfWeek = 0;
|
|
systime.wDay = (WORD) AsLong( strTime.Mid( 6, 2 ), 10 );
|
|
systime.wHour = (WORD) AsLong( strTime.Mid( 8, 2 ), 10 );
|
|
systime.wMinute = (WORD) AsLong( strTime.Mid( 10, 2 ), 10 );
|
|
systime.wSecond = (WORD) AsLong( strTime.Mid( 12, 2 ), 10 );
|
|
systime.wMilliseconds = (WORD) AsLong( strTime.Mid( 15, 6 ), 10 );
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Sets the value of the property to the WMI class object
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[in] WBEMTime : variable holding the property to set
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
HRESULT PropertyPut( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, _variant_t& varValue )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
VARIANT var;
|
|
|
|
// check the input value
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
try
|
|
{
|
|
// put the value
|
|
var = varValue;
|
|
hr = pWmiObject->Put( _bstr_t( pwszProperty ), 0, &var, 0 );
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
hr = e.Error();
|
|
}
|
|
|
|
// return the result
|
|
return hr;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Sets the string value of the property to the WMI class object
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[in] LPCWSTR : variable holding the property to set
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
HRESULT PropertyPut( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, LPCWSTR pwszValue )
|
|
{
|
|
// local variables
|
|
HRESULT hr = S_OK;
|
|
_variant_t varValue;
|
|
|
|
// check the input value
|
|
if ( pWmiObject == NULL || pwszProperty == NULL || pwszValue == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
try
|
|
{
|
|
varValue = pwszValue;
|
|
PropertyPut( pWmiObject, pwszProperty, varValue );
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
hr = e.Error();
|
|
}
|
|
|
|
// return
|
|
return hr;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
Sets the dword value of the property to the WMI class object
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemClassObject : pointer to the WBEM class object
|
|
[in] LPCWSTR : the name of the property to retrieve
|
|
[in] DWORD : variable holding the property to set
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
HRESULT PropertyPut( IWbemClassObject* pWmiObject, LPCWSTR pwszProperty, DWORD dwValue )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
_variant_t varValue;
|
|
|
|
// check the input value
|
|
if ( pWmiObject == NULL || pwszProperty == NULL )
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
try
|
|
{
|
|
varValue = ( LONG ) dwValue;
|
|
PropertyPut( pWmiObject, pwszProperty, varValue );
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
hr = e.Error();
|
|
}
|
|
|
|
// return
|
|
return hr;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function retrieves the value of the property from the specified registry key.
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemServices : pointer to the IWbemServices object
|
|
[in] LPCWSTR : the name of the method to execute
|
|
[in] DWORD : the key in the registry whose value has to be retrieved
|
|
[in] LPCWSTR : the name of the subkey to retrieve
|
|
[in] LPCWSTR : the name of the value to retrieve
|
|
[in] _variant_t : variable holding the property value retrieved
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
HRESULT RegQueryValueWMI( IWbemServices* pWbemServices,
|
|
LPCWSTR pwszMethod, DWORD dwHDefKey,
|
|
LPCWSTR pwszSubKeyName, LPCWSTR pwszValueName, _variant_t& varValue )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
BOOL bResult = FALSE;
|
|
DWORD dwReturnValue = 0;
|
|
IWbemClassObject* pClass = NULL;
|
|
IWbemClassObject* pMethod = NULL;
|
|
IWbemClassObject* pInParams = NULL;
|
|
IWbemClassObject* pInParamsInstance = NULL;
|
|
IWbemClassObject* pOutParamsInstance = NULL;
|
|
|
|
// check the input value
|
|
if (pWbemServices == NULL || pwszMethod == NULL || pwszSubKeyName == NULL || pwszValueName == NULL)
|
|
{
|
|
return WBEM_E_INVALID_PARAMETER;
|
|
}
|
|
|
|
try
|
|
{
|
|
// get the registry class object
|
|
SAFE_EXECUTE( pWbemServices->GetObject(
|
|
_bstr_t( WMI_REGISTRY ), WBEM_FLAG_RETURN_WBEM_COMPLETE, NULL, &pClass, NULL ) );
|
|
if ( pClass == NULL ) // check the object .. safety sake
|
|
{
|
|
_com_issue_error( STG_E_UNKNOWN );
|
|
}
|
|
|
|
// get the method reference required
|
|
SAFE_EXECUTE( pClass->GetMethod( pwszMethod, 0, &pInParams, NULL ) );
|
|
if ( pInParams == NULL ) // check the object .. safety sake
|
|
{
|
|
_com_issue_error( STG_E_UNKNOWN );
|
|
}
|
|
|
|
// create the instance for the in parameters
|
|
SAFE_EXECUTE( pInParams->SpawnInstance( 0, &pInParamsInstance ) );
|
|
if ( pInParamsInstance == NULL )
|
|
{
|
|
_com_issue_error( STG_E_UNKNOWN );
|
|
}
|
|
|
|
// set the input values
|
|
PropertyPut( pInParamsInstance, _bstr_t( WMI_REGISTRY_IN_HDEFKEY ), dwHDefKey );
|
|
PropertyPut( pInParamsInstance, _bstr_t( WMI_REGISTRY_IN_SUBKEY ), pwszSubKeyName );
|
|
PropertyPut( pInParamsInstance, _bstr_t( WMI_REGISTRY_IN_VALUENAME ), pwszValueName );
|
|
|
|
// now execute the method
|
|
SAFE_EXECUTE( pWbemServices->ExecMethod( _bstr_t( WMI_REGISTRY ),
|
|
_bstr_t( pwszMethod ), 0, NULL, pInParamsInstance, &pOutParamsInstance, NULL ) );
|
|
if ( pOutParamsInstance == NULL ) // check the object .. safety sake
|
|
{
|
|
_com_issue_error( STG_E_UNKNOWN );
|
|
}
|
|
|
|
// now check the return value of the method from the output params object
|
|
bResult = PropertyGet( pOutParamsInstance,
|
|
_bstr_t( WMI_REGISTRY_OUT_RETURNVALUE ), dwReturnValue );
|
|
if ( bResult == FALSE || dwReturnValue != 0 )
|
|
{
|
|
_com_issue_error( STG_E_UNKNOWN );
|
|
}
|
|
|
|
// now everything is sucess .. get the required value
|
|
if ( lstrcmp( pwszMethod, WMI_REGISTRY_M_DWORDVALUE ) == 0 )
|
|
{
|
|
PropertyGet( pOutParamsInstance, _bstr_t( WMI_REGISTRY_OUT_VALUE_DWORD ), varValue );
|
|
}
|
|
else
|
|
{
|
|
PropertyGet( pOutParamsInstance, _bstr_t( WMI_REGISTRY_OUT_VALUE ), varValue );
|
|
}
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
return e.Error();
|
|
}
|
|
|
|
// release the interfaces
|
|
SAFE_RELEASE( pClass );
|
|
SAFE_RELEASE( pMethod );
|
|
SAFE_RELEASE( pInParams );
|
|
SAFE_RELEASE( pInParamsInstance );
|
|
SAFE_RELEASE( pOutParamsInstance );
|
|
|
|
// return success
|
|
return S_OK;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function retrieves the string value of the property from the specified registry key.
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemServices : pointer to the IWbemServices object
|
|
[in] DWORD : the key in the registry whose value has to be retrieved
|
|
[in] LPCWSTR : the name of the subkey to retrieve
|
|
[in] LPCWSTR : the name of the value to retrieve
|
|
[out] CHString : variable holding the property value retrieved
|
|
[in] LPCWSTR : the default value for this property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL RegQueryValueWMI( IWbemServices* pWbemServices,
|
|
DWORD dwHDefKey, LPCWSTR pwszSubKeyName,
|
|
LPCWSTR pwszValueName, CHString& strValue, LPCWSTR pwszDefault )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
_variant_t varValue;
|
|
|
|
try
|
|
{
|
|
// set the default value
|
|
if ( pwszDefault != NULL )
|
|
{
|
|
strValue = pwszDefault;
|
|
}
|
|
|
|
// check the input
|
|
if ( pWbemServices == NULL || pwszSubKeyName == NULL || pwszValueName == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value
|
|
hr = RegQueryValueWMI( pWbemServices,
|
|
WMI_REGISTRY_M_STRINGVALUE, dwHDefKey, pwszSubKeyName, pwszValueName, varValue );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value from the variant
|
|
// get the value
|
|
if ( varValue.vt != VT_NULL && varValue.vt != VT_EMPTY )
|
|
{
|
|
strValue = (LPCWSTR) _bstr_t( varValue );
|
|
}
|
|
}
|
|
catch( ... )
|
|
{
|
|
SetLastError( E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// return success
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function retrieves the dword value of the property from the specified registry key.
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemServices : pointer to the IWbemServices object
|
|
[in] DWORD : the key in the registry whose value has to be retrieved
|
|
[in] LPCWSTR : the name of the subkey to retrieve
|
|
[in] LPCWSTR : the name of the value to retrieve
|
|
[out] DWORD : variable holding the property value retrieved
|
|
[in] DWORD : the default value for this property
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL RegQueryValueWMI( IWbemServices* pWbemServices,
|
|
DWORD dwHDefKey, LPCWSTR pwszSubKeyName,
|
|
LPCWSTR pwszValueName, DWORD& dwValue, DWORD dwDefault )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
_variant_t varValue;
|
|
|
|
try
|
|
{
|
|
// set the default value
|
|
dwValue = dwDefault;
|
|
|
|
// check the input
|
|
if ( pWbemServices == NULL || pwszSubKeyName == NULL || pwszValueName == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value
|
|
hr = RegQueryValueWMI( pWbemServices, WMI_REGISTRY_M_DWORDVALUE, dwHDefKey,
|
|
pwszSubKeyName, pwszValueName, varValue );
|
|
if ( FAILED( hr ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// get the value from the variant
|
|
// get the value
|
|
if ( varValue.vt != VT_NULL && varValue.vt != VT_EMPTY )
|
|
{
|
|
dwValue = (LONG) varValue;
|
|
}
|
|
}
|
|
catch( ... )
|
|
{
|
|
SetLastError( E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// return success
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function gets the version of the system from which we are trying to retrieve
|
|
information from.
|
|
|
|
Arguments:
|
|
|
|
[in] IWbemServices : pointer to the IWbemServices object
|
|
[in] COAUTHIDENTITY : pointer to the pointer to AUTHIDENTITY structure
|
|
|
|
Return Value:
|
|
|
|
DWORD - Target version of the machine
|
|
*********************************************************************************************/
|
|
DWORD GetTargetVersionEx( IWbemServices* pWbemServices, COAUTHIDENTITY* pAuthIdentity )
|
|
{
|
|
// local variables
|
|
HRESULT hr;
|
|
LONG lPos = 0;
|
|
DWORD dwMajor = 0;
|
|
DWORD dwMinor = 0;
|
|
DWORD dwVersion = 0;
|
|
ULONG ulReturned = 0;
|
|
CHString strVersion;
|
|
IWbemClassObject* pWbemObject = NULL;
|
|
IEnumWbemClassObject* pWbemInstances = NULL;
|
|
|
|
// check the input value
|
|
if ( pWbemServices == NULL )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
try
|
|
{
|
|
// get the OS information
|
|
SAFE_EXECUTE( pWbemServices->CreateInstanceEnum(
|
|
_bstr_t( CLASS_CIMV2_Win32_OperatingSystem ), 0, NULL, &pWbemInstances ) );
|
|
|
|
// set the security on the enumerated object
|
|
SAFE_EXECUTE( SetInterfaceSecurity( pWbemInstances, pAuthIdentity ) );
|
|
|
|
// get the enumerated objects information
|
|
// NOTE: This needs to be traversed only one time.
|
|
SAFE_EXECUTE( pWbemInstances->Next( WBEM_INFINITE, 1, &pWbemObject, &ulReturned ) );
|
|
|
|
// to be on safer side ... check the count of objects returned
|
|
if ( ulReturned == 0 )
|
|
{
|
|
// release the interfaces
|
|
SAFE_RELEASE( pWbemObject );
|
|
SAFE_RELEASE( pWbemInstances );
|
|
return 0;
|
|
}
|
|
|
|
// now get the os version value
|
|
if ( PropertyGet( pWbemObject, L"Version", strVersion ) == FALSE )
|
|
{
|
|
// release the interfaces
|
|
SAFE_RELEASE( pWbemObject );
|
|
SAFE_RELEASE( pWbemInstances );
|
|
return 0;
|
|
}
|
|
|
|
// release the interfaces .. we dont need them furthur
|
|
SAFE_RELEASE( pWbemObject );
|
|
SAFE_RELEASE( pWbemInstances );
|
|
|
|
//
|
|
// now determine the os version
|
|
dwMajor = dwMinor = 0;
|
|
|
|
// get the major version
|
|
lPos = strVersion.Find( L'.' );
|
|
if ( lPos == -1 )
|
|
{
|
|
// the version string itself is version ... THIS WILL NEVER HAPPEN
|
|
dwMajor = AsLong( strVersion, 10 );
|
|
}
|
|
else
|
|
{
|
|
// major version
|
|
dwMajor = AsLong( strVersion.Mid( 0, lPos ), 10 );
|
|
|
|
// get the minor version
|
|
strVersion = strVersion.Mid( lPos + 1 );
|
|
lPos = strVersion.Find( L'.' );
|
|
if ( lPos == -1 )
|
|
{
|
|
dwMinor = AsLong( strVersion, 10 );
|
|
}
|
|
else
|
|
{
|
|
dwMinor = AsLong( strVersion.Mid( 0, lPos ), 10 );
|
|
}
|
|
}
|
|
|
|
// mix the version info
|
|
dwVersion = dwMajor * 1000 + dwMinor;
|
|
}
|
|
catch( _com_error& e )
|
|
{
|
|
WMISaveError( e );
|
|
return 0;
|
|
}
|
|
|
|
// return
|
|
return dwVersion;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function retrieves a property from the safe array.
|
|
|
|
Arguments:
|
|
|
|
[in] SAFEARRAY : pointer to the array of elements
|
|
[in] LONG : index to retrieve the data from
|
|
[out] CHString : variable to hold the return value
|
|
[in] VARTYPE : The type of variable to retrieve from the array
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL GetPropertyFromSafeArray( SAFEARRAY *pSafeArray, LONG lIndex, CHString& strValue,
|
|
VARTYPE vartype )
|
|
{
|
|
// check the inputs
|
|
if ( pSafeArray == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
try
|
|
{
|
|
// sub-local variables
|
|
VARIANT var;
|
|
|
|
// get the value
|
|
V_VT( &var ) = vartype;
|
|
SafeArrayGetElement( pSafeArray, &lIndex, &V_UI1( &var ) );
|
|
|
|
// add the information to the dynamic array
|
|
switch( vartype )
|
|
{
|
|
case VT_BSTR:
|
|
strValue = V_BSTR( &var );
|
|
break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
catch( ... )
|
|
{
|
|
return FALSE; // failure
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
/*********************************************************************************************
|
|
Routine Description:
|
|
|
|
This function retrieves a property from the safe array.
|
|
|
|
Arguments:
|
|
|
|
[in] SAFEARRAY : pointer to the array of elements
|
|
[in] LONG : index to retrieve the data from
|
|
[out] IWbemClassObject : variable to hold the return value
|
|
[in] VARTYPE : The type of variable to retrieve from the array
|
|
|
|
Return Value:
|
|
|
|
TRUE on success
|
|
FALSE on failure
|
|
*********************************************************************************************/
|
|
BOOL GetPropertyFromSafeArray( SAFEARRAY *pSafeArray, LONG lIndex,
|
|
IWbemClassObject **pScriptObject, VARTYPE vartype )
|
|
{
|
|
// check the inputs
|
|
if ( pSafeArray == NULL )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
try
|
|
{
|
|
// sub-local variables
|
|
VARIANT var;
|
|
|
|
// get the value
|
|
V_VT( &var ) = vartype;
|
|
SafeArrayGetElement( pSafeArray, &lIndex, &V_UI1( &var ) );
|
|
|
|
// add the information to the dynamic array
|
|
switch( vartype )
|
|
{
|
|
case VT_UNKNOWN:
|
|
*pScriptObject = (IWbemClassObject *) var.punkVal;
|
|
break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
}
|
|
catch( ... )
|
|
{
|
|
return FALSE; // failure
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|