Re: [Trustedjava-support] Unable to open TPM device file /dev/tpm0 through Trusted JAVA

[Ronald T. <ron...@ia...>]

Hello,

What's your platform? How did you configure the jTSS TCS and are there 
any other TSSes installed?

Ronald

On 04/09/2011 09:49 AM, waqar afridi wrote:
> Hello Dear List
>
> I am using Trusted JAVA to Extend a byte array to the PCR 11 of the 
> TPM but when I do I get the Following Error:
>
> ===========================================================================================
>
> 12:09:24:305 [WARN] TcTddlLinux::open (106):    Unable to open TPM 
> device file /dev/tpm.
> Reason: /dev/tpm (Device or resource busy)
>
> 12:09:24:306 [ERROR] TcTcsi::<clinit> (129):    TCS startup failed.
> 12:09:24:307 [ERROR] TcTcsi::<clinit> (129):
> TSS Error:
> error layer:                0x1000 (TDDL)
> error code (without layer): 0x87
> error code (full):          0x1087
> error message: The request could not be performed because of an IO 
> device error.
> additional info: Unable to open TPM device file /dev/tpm.
> Reason: /dev/tpm (Device or resource busy)
>
>
> iaik.tc.tss.api.exceptions.tcs.TcTddlException:
> TSS Error:
> error layer:                0x1000 (TDDL)
> error code (without layer): 0x87
> error code (full):          0x1087
> error message: The request could not be performed because of an IO 
> device error.
> additional info: Unable to open TPM device file /dev/tpm.
> Reason: /dev/tpm (Device or resource busy)
>
>
>     at iaik.tc.tss.impl.java.tddl.TcTddlLinux.open(TcTddlLinux.java:107)
>     at iaik.tc.tss.impl.java.tddl.TcTddl.getInstance(TcTddl.java:44)
>     at 
> iaik.tc.tss.impl.java.tcs.TcTcsCommon.isOrdinalSupported(TcTcsCommon.java:66)
>     at iaik.tc.tss.impl.java.tcs.tcsi.TcTcsi.<clinit>(TcTcsi.java:112)
>     at 
> iaik.tc.tss.impl.java.tsp.tcsbinding.local.TcTcsBindingLocal.TcsiOpenContext(TcTcsBindingLocal.java:177)
>     at 
> iaik.tc.tss.impl.java.tsp.internal.TcTspInternal.TspContextOpen_Internal(TcTspInternal.java:378)
>     at iaik.tc.tss.impl.java.tsp.TcContext.connect(TcContext.java:167)
>
> ===========================================================================================
>
> The Part of Code for PCR Extending is:
>
> ===========================================================================================
>
>     int pcrIndex = 11;
>     byte[] byteData = xmlFromNode.getBytes();
>
>     TcBlobData data = TcBlobData.newByteArray(byteData);
>
>     try
>     {
>         TcTssAbstractFactory factory = new TcTssLocalCallFactory();
>         TcIContext context = factory.newContextObject();
>
>         context.connect("localhost");
>         TcITpm tpm = context.getTpmObject();
>         TcTssPcrEvent event = new TcTssPcrEvent();
>         event.setPcrIndex(pcrIndex);
>         event.setEventType(TcTssConstants.TSS_EV_PLATFORM_SPECIFIC);
>         
> event.setVersionInfo(tpm.getCapabilityVersion(TcTssConstants.TSS_TPMCAP_VERSION, 
> null));
> //      event.setEvent(TcBlobData.newString(logEntry));
>
>         TcBlobData oldPcrContent = tpm.pcrRead(pcrIndex);
>
>         try
>         {
>             tpm.pcrExtend(pcrIndex, data.sha1(), event);
>         }
>
>         catch (TcTssException e)
>         {
>             if (e.getErrCode() == TcTssErrors.TSS_E_NOTIMPL)
>             {
>                 System.out.println("\n\nNote: This TSS has no event 
> log support\n\n");
>             }
>             else
>             {
>                 throw e;
>             }
>         }
>
>         context.closeContext();
>
>         System.out.println("\n\nExtendPcr succeeded\n\n");
>
>         if (event != null)
>         {
>             TcBlobData newPcrContentPlain = 
> TcBlobData.newUINT32(pcrIndex);
>             newPcrContentPlain.append(data.sha1());
>             
> newPcrContentPlain.append(TcBlobData.newUINT32(event.getEventType()));
>             newPcrContentPlain.append(event.getEvent());
>             oldPcrContent.append(newPcrContentPlain.sha1());
>         }
>         else
>         {
>             oldPcrContent.append(data.sha1());
>         }
>             System.out.println("expected new content of PCR " + 
> pcrIndex + ": "
>                     + oldPcrContent.sha1().toHexStringNoWrap());
>
>     }
>     catch (TcTssException e)
>     {
>         if (e.getErrLayer() == TcTssErrors.TSS_LAYER_TPM)
>         {
>             System.out.println("can't extend this pcr - wrong locality");
>         }
>         else
>         {
>             System.out.println("Error");
>         }
>         }
>     }
>
> ===========================================================================================
>
> I tried with both Hardware TPM and TPM Emulator but still getting the 
> Error, The above Error is of Software TPM (Both Error messages are 
> exactly the Same just for hardware TPM its tpm0)
>
> Any Idea or Hint what could be the Problem?
>
> Thanx in Advance
>
> -- 
> *Waqar Afridi*
>
>
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-- 
Dipl.-Ing. Ronald Tögl          phone +43 316/873-5502
Secure and Correct Systems      fax   +43 316/873-5520
IAIK                            ron...@ia...
Graz University of Technology   http://www.iaik.tugraz.at