public TPMContext(string deviceName, TPMWrapper tpm)
{
_deviceName = deviceName;
_tpm = tpm;
_authHandleManager = new AuthHandleManager(this);
_keyManager = new KeyManager(this);
}
public override void Init(Parameters param, TPMProvider tpmProvider, TPMWrapper tpmWrapper)
{
base.Init (param, tpmProvider, tpmWrapper);
_param = param;
_capArea = param.GetValueOf<CapabilityData.TPMCapabilityArea> ("capArea");
}
/// <summary>
/// Reads the configured tpm devices from the configuration and
/// sets up the corresponding tpm contexts
/// </summary>
private void SetupTPMContexts()
{
IConnectionsConfiguration connectionConfig = (IConnectionsConfiguration)ConfigurationManager.GetSection ("connections");
foreach (Iaik.Tc.TPM.Configuration.DotNetConfiguration.TPMDevice device in connectionConfig.TpmDevices)
{
try
{
_logger.InfoFormat ("Setting up tpm context '{0}'", device.TPMName);
TPMWrapper tpmDevice = new TPMWrapper ();
tpmDevice.Init (device.TPMType, device.Parameters);
TPMContext tpmContext = new TPMContext (device.TPMName, tpmDevice);
_tpmContexts.Add (device.TPMName, tpmContext);
_logger.InfoFormat ("Flushing device '{0}'", device.TPMName);
foreach (TPMResourceType resourceType in new TPMResourceType[] {
TPMResourceType.TPM_RT_AUTH, TPMResourceType.TPM_RT_KEY})
{
Parameters listLoadedHandlesParameters = new Parameters ();
listLoadedHandlesParameters.AddPrimitiveType ("capArea", CapabilityData.TPMCapabilityArea.TPM_CAP_HANDLE);
listLoadedHandlesParameters.AddPrimitiveType ("handle_type", resourceType);
TPMCommandRequest listLoadedHandlesRequest = new TPMCommandRequest (TPMCommandNames.TPM_CMD_GetCapability,
listLoadedHandlesParameters);
TPMCommandResponse response = tpmDevice.Process (listLoadedHandlesRequest);
if (response.Status == false)
throw new Exception ("An unknown tpm exception while flushing occured");
foreach (uint handle in response.Parameters.GetValueOf<HandleList> ("handles"))
{
Parameters flushParameters = new Parameters ();
flushParameters.AddValue ("handle", HandleFactory.Create (resourceType, handle));
TPMCommandRequest flushRequest = new TPMCommandRequest (TPMCommandNames.TPM_CMD_FlushSpecific, flushParameters);
TPMCommandResponse flushResponse = tpmDevice.Process (flushRequest);
if (flushResponse.Status == false)
throw new Exception ("Something went wrong while flushing");
}
}
_logger.InfoFormat ("Successfully setup tpm context '{0}' with type '{1}'", device.TPMName, device.TPMType);
}
catch (Exception ex)
{
_logger.FatalFormat ("Error setting up tpm device '{0}', the device will not be available ({1})", device.TPMName, ex);
}
///Set the Assembly search order for incoming Parameters so that core classes are always at first
Parameters.AssemblySearchOrder = new Assembly[]{
typeof(TPMWrapper).Assembly, //lib core
typeof(ITypedParameter).Assembly}; //lib common
}
}
public TpmKeymanager(TPMWrapper tpm)
{
_tpm = tpm;
}
public override void Init(Parameters param, TPMProvider provider, TPMWrapper tpmWrapper)
{
base.Init(param, provider, tpmWrapper);
_register = param.GetValueOf<UInt32>("pcrnum");
}
private static void ReadPCRs(TPMWrapper tpm)
{
uint i = 0;
ILog log = LogManager.GetLogger("ReadPCRs");
Parameters param = new Parameters();
param.AddPrimitiveType("capArea", CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY);
param.AddPrimitiveType("subCap", CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_PCR);
TPMCommandRequest request = new TPMCommandRequest(TPMCommandNames.TPM_CMD_GetCapability, param);
TPMCommandResponse response = tpm.Process(request);
uint maxPcrs = response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_PCR);
for(i=0; i<maxPcrs; ++i){
param = new Parameters();
param.AddPrimitiveType("pcrnum", i);
TPMCommandRequest req = new TPMCommandRequest(TPMCommandNames.TPM_CMD_PCRRead,param);
TPMCommandResponse resp = tpm.Process(req);
byte[] val = resp.Parameters.GetValueOf<byte[]>("value");
log.InfoFormat("Answer for PCR {0} is: 0x{1}", resp.Parameters.GetValueOf<UInt32>("pcrnum"),
ByteHelper.ByteArrayToHexString(val));
}
// TPMCommandRequest req = new TPMCommandRequest(TPMCommandNames.TPM_CMD_PCRRead, null);
// TPMCommand com = TPMCommandFactory.Create(req);
// com.Init(param, tpm);
// com.Process();
//Console.WriteLine ("Hello World!");
}
private static void ReadCapabilities(TPMWrapper tpm)
{
ILog log = LogManager.GetLogger("ReadCapabilities");
// Read out each capability property
foreach(CapabilityData.TPMSubCapProperty subCap in Enum.GetValues(typeof(CapabilityData.TPMSubCapProperty)))
{
Parameters param = new Parameters();
param.AddPrimitiveType("capArea", CapabilityData.TPMCapabilityArea.TPM_CAP_PROPERTY);
param.AddPrimitiveType("subCap", subCap);
TPMCommandRequest request = new TPMCommandRequest(TPMCommandNames.TPM_CMD_GetCapability, param);
TPMCommandResponse response = tpm.Process(request);
switch(subCap)
{
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_PCR:
log.InfoFormat("Number of PCRs is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_PCR));
break;
//case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_DIR:
// log.InfoFormat("Number of DIR is {0} and should be 1 because command is deprecated", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_DIR));
// break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MANUFACTURER:
log.InfoFormat("Manufacturer ID is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_MANUFACTURER));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_KEYS:
log.InfoFormat("Number of free keyslots is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_KEYS));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_AUTHSESS:
log.InfoFormat("Number of max Auth Sessions is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_MAX_AUTHSESS));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_TRANSESS:
log.InfoFormat("Number of max Trans Sessions is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_MAX_TRANSESS));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_KEYS:
log.InfoFormat("Number of max keys (without EK and SRK) is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_MAX_KEYS));
break;
case CapabilityData.TPMSubCapProperty.TPM_CAP_PROP_MAX_SESSIONS:
log.InfoFormat("Number of max Sessions is {0}", response.Parameters.GetValueOf<uint>(CapabilityData.PARAM_PROP_MAX_SESSIONS));
break;
default:
throw new NotSupportedException("Defined cap or subcap are not supported");
}
}
}
private static AuthHandle EstablishOIAP(TPMWrapper tpm)
{
ILog log = LogManager.GetLogger ("EstablishOIAP");
for (int i = 0; i < 2; i++)
{
TPMCommandRequest request = new TPMCommandRequest (TPMCommandNames.TPM_CMD_OIAP, new Parameters ());
TPMCommandResponse response = tpm.Process (request);
AuthHandle myAuthHandle = response.Parameters.GetValueOf<AuthHandle> ("auth_handle");
// Parameters parameters = new Parameters ();
// parameters.AddValue ("handle", myAuthHandle);
// TPMCommandRequest requestFlush = new TPMCommandRequest (TPMCommandNames.TPM_CMD_FLUSH_SPECIFIC, parameters);
// tpm.Process (requestFlush);
//return myAuthHandle;
}
Parameters listHandlesParameters = new Parameters ();
listHandlesParameters.AddPrimitiveType ("capArea", CapabilityData.TPMCapabilityArea.TPM_CAP_HANDLE);
listHandlesParameters.AddPrimitiveType ("handle_type", TPMResourceType.TPM_RT_AUTH);
TPMCommandRequest listHandlesRequest = new TPMCommandRequest (TPMCommandNames.TPM_CMD_GetCapability, listHandlesParameters);
TPMCommandResponse listHandlesResponse = tpm.Process (listHandlesRequest);
HandleList loadedKeyHandles = listHandlesResponse.Parameters.GetValueOf<HandleList> ("handles");
return null;
}
