176 lines
3.9 KiB
C++
176 lines
3.9 KiB
C++
/*++
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Copyright (c) 2001 Microsoft Corporation
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Module Name :
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sslconfigchangeprovclient.cxx
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Abstract:
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SSL CONFIG CHANGE PROV client
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Receives SSL configuration change parameters detected by server side
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User of this class shold inherit it class and implement
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PipeListener() to process notifications
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Author:
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Jaroslav Dunajsky April-24-2001
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Environment:
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Win32 - User Mode
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Project:
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Stream Filter Worker Process
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--*/
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// BUGBUG - how to handle errors during pipe operations
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// if there is some data left over on pipe unread then all subsequent
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// users of the pipe will be toast. Should we just close and reopen pipe connection?
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// Well typically
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#include "precomp.hxx"
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HRESULT
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SSL_CONFIG_CHANGE_PROV_CLIENT::StartListeningForChanges(
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IN SSL_CONFIG_CHANGE_CALLBACK * pSslConfigChangeCallback,
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IN OPTIONAL PVOID pvParam
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)
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/*++
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Routine Description:
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Create thread to handle SSL configuration change notification
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Arguments:
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pSslConfigChangeCallback - callback function that receives change details
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pvParam - optional parameter that will be passed as first param to callback
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Return Value:
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HRESULT
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--*/
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{
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HRESULT hr = E_FAIL;
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IF_DEBUG( TRACE )
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{
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DBGPRINTF(( DBG_CONTEXT,
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"SSL_CONFIG_CHANGE_PROV_CLIENT::StartListeningForChanges()\n"
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));
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}
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if ( pSslConfigChangeCallback == NULL )
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{
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DBG_ASSERT( pSslConfigChangeCallback != NULL );
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return HRESULT_FROM_WIN32( ERROR_INVALID_PARAMETER );
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}
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//
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// store the callback function pointer, and first parameter
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//
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_pSslConfigChangeCallback = pSslConfigChangeCallback;
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_pSslConfigChangeCallbackParameter = pvParam;
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//
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// Initialize parent (it will handle all the pipe initialization)
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//
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return SSL_CONFIG_PIPE::PipeInitializeClient( WSZ_SSL_CONFIG_CHANGE_PIPE );
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}
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HRESULT
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SSL_CONFIG_CHANGE_PROV_CLIENT::StopListeningForChanges(
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VOID
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)
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/*++
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Routine Description:
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Close named pipe for SSL config change notifications
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Arguments:
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Return Value:
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HRESULT
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--*/
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{
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IF_DEBUG( TRACE )
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{
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DBGPRINTF(( DBG_CONTEXT,
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"SSL_CONFIG_CHANGE_PROV_CLIENT::StopListeningForChanges\n"
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));
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}
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return SSL_CONFIG_PIPE::PipeTerminateClient( );
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}
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//virtual
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HRESULT
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SSL_CONFIG_CHANGE_PROV_CLIENT::PipeListener(
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VOID
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)
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/*++
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Routine Description:
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Pipe listener on the client side handles SSL Config change notifications
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Function is started on private thread launched by
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base class SSL_CONFIG_PIPE during pipe initialization
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Arguments:
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Return Value:
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HRESULT
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--*/
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{
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SSL_CONFIG_PIPE_COMMAND Command;
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HRESULT hr = E_FAIL;
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DWORD dwSiteId;
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//
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// Listen on pipe to receive commands
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// and handle them
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//
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while ( TRUE )
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{
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hr = PipeReceiveCommand( &Command );
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if ( FAILED( hr ) )
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{
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//
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// failure may simply mean that
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// termination has started and
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// pipe handle was closed
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//
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DBG_ASSERT( QueryPipeIsTerminating() );
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goto Cleanup;
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}
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dwSiteId = Command.dwParameter1;
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//
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// make the callback
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//
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DBG_ASSERT( _pSslConfigChangeCallback != NULL );
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(* _pSslConfigChangeCallback) (
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_pSslConfigChangeCallbackParameter,
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static_cast<SSL_CONFIG_CHANGE_COMMAND_ID>
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( Command.dwCommandId ),
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dwSiteId );
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}
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return S_OK;
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Cleanup:
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DBG_ASSERT( FAILED( hr ) );
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return hr;
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}
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