long CNetMgr::OnNetMsg(WPARAM wParam, LPARAM lParam, const GUID *pGuid)
{_STT();
CNetCom *pNc = (CNetCom*)lParam;
if ( pNc == NULL ) return E_FAIL;
// Authenticate the connection
if ( !OnAuthenticate( pNc ) ) return E_FAIL;
// Hook NetCmd messages
if ( pGuid != NULL && IsEqualGUID( NetCmd::IID, *pGuid ) )
{
// Save network error if any
if ( pNc->GetNetError() )
SetNetError( pNc->GetNetError() );
// Cleanup if node is disconnecting
// +++ This doesn't work because it causes the calling
// class to delete itself. For now, Cleanup() must be
// called from the outside. This is just to remind me
// to come up with something.
// if ( wParam == NetCmd::efDisconnect ) Cleanup();
} // end if
// Check for update request
if ( ( wParam & CNetMsg::fWantUpdate ) != 0 )
{ AddUpdateNotification( pNc->Tx()->GetConnectionId(), pGuid,
wParam & CNetMsg::fMask );
} // end if
// Check for remove notification command
if ( ( wParam & CNetMsg::fCancelUpdate ) != 0 )
{ RemoveUpdateNotification( pNc->Tx()->GetConnectionId(), pGuid,
wParam & CNetMsg::fMask );
// Don't process this message
return S_OK;
} // end if
// Turn off internal flags
wParam &= CNetMsg::fCmdMask;
pNc->SMsg().dwFunction &= CNetMsg::fCmdMask;
// Pass on the message
return MMessage( wParam, lParam, pGuid );
}
BOOL CNetCmd::vMsg( const GUID *pNode, const GUID *pClass, DWORD dwFunction, CReg *pParams, DWORD dwBuffers, LPVOID *pArgs )
{_STT();
// Verify we have authority to send this message
if ( !OnTxAuthenticate( pNode, pClass, dwFunction ) )
return FALSE;
// Get destination
CNetCom *pNc = GetNode( pNode );
if ( pNc == NULL || !pNc->IsValid() )
return FALSE;
// Copy message data
CNetMsg::SMsg msg;
ZeroMemory( &msg, sizeof( msg ) );
msg.dwFunction = dwFunction;
// Encode params
CPipe params;
if ( pParams ) pParams->SaveRegFile( ¶ms, NULL, "" );
// Calculate the total size needed
DWORD dwBlocks = 3; if ( params.GetBufferSize() ) dwBlocks++;
DWORD dwTotalSize = ( sizeof( CNetMsg::SAddress ) * 2 ) +
sizeof( CNetMsg::SMsg ) +
params.GetBufferSize();
DWORD i;
LPVOID *ptrExtra = pArgs;
for ( i = 0; i < dwBuffers; i++ )
{ RULIB_TRY
{ DWORD dwType = *(LPDWORD)( ptrExtra );
LPBYTE pPtr = *(LPBYTE*)( ptrExtra + 1 );
DWORD dwSize = *(LPDWORD)( ptrExtra + 2 );
dwBlocks++;
// Zero means NULL terminated
if ( dwSize == 0 && pPtr != NULL ) dwSize = strlen( (LPCTSTR)pPtr );
dwTotalSize += dwSize;
ptrExtra += 3;
} // end try
RULIB_CATCH_ALL { return FALSE; }
} // end for
// Lock the tx buffer
CTlLocalLock ll( *pNc->Tx() );
if ( !ll.IsLocked() ) return FALSE;
// Initialze the packet
pNc->Tx()->InitPacket( NETMSG_PACKETTYPE, dwBlocks, dwTotalSize );
CNetMsg::SAddress addr;
// Destination information
memcpy( &addr.guidNode, pNc->Rx()->Address(), sizeof( GUID ) );
if ( pClass ) memcpy( &addr.guidClass, pClass, sizeof( GUID ) );
else ZeroMemory( &addr.guidClass, sizeof( addr.guidClass ) );
pNc->Tx()->AddPacketData( NETMSGDT_DSTADDRESS, &addr, sizeof( addr ) );
// Source information
memcpy( &addr.guidNode, pNc->Tx()->Address(), sizeof( GUID ) );
ZeroMemory( &addr.guidClass, sizeof( addr.guidClass ) );
pNc->Tx()->AddPacketData( NETMSGDT_SRCADDRESS, &addr, sizeof( addr ) );
// Add message
pNc->Tx()->AddPacketData( NETMSGDT_MSG, &msg, sizeof( msg ) );
// Add params if any
if ( params.GetBufferSize() )
pNc->Tx()->AddPacketData( NETMSGDT_PARAMS, params.GetBuffer(), params.GetBufferSize() );
// Add the data to the packet
ptrExtra = pArgs;
for ( i = 0; i < dwBuffers; i++ )
{ RULIB_TRY
{ DWORD dwType = *(LPDWORD)( ptrExtra );
LPBYTE pPtr = *(LPBYTE*)( ptrExtra + 1 );
DWORD dwSize = *(LPDWORD)( ptrExtra + 2 );
// Zero means NULL terminated
if ( dwSize == 0 && pPtr != NULL ) dwSize = strlen( (LPCTSTR)pPtr );
// Add packet data block
pNc->Tx()->AddPacketData( dwType, pPtr, dwSize );
ptrExtra += 3;
} // end try
RULIB_CATCH_ALL { return FALSE; }
} // end for
// Make it official
return pNc->Tx()->EndPacket();
}