Re: vTPM NVM, loadkey and trousers questions

[Erdem Bayer <ebayer@bayer.gen.tr>]

Hi

See post in [0] about loading keys into vTPM on infineon 1.2 TPMs. IMO, 
you also need this patch.

Could you send any progress about this NVM issue. This is one of my 
biggest problems in vTPM and I want to see if anyone gets it work.

Thank you
Erdem Bayer

[0] http://lists.xensource.com/archives/html/xen-devel/2008-02/msg01092.html

Tim Feld wrote On 26-08-2008 23:58:
> Hi everyone,
>
> I am using Xen 3.2.1 with the vtpm-12-patch.diff patch posted in [0]. My TPM is an Infineon 1.2. In total I have got three different questions:
>
> 1. NVM loading problem at VM creation
> When I am creating a VM the last few lines of the vtpm_manager output are:
> TPMD[245]: tpm/tpm_startup.c:45: Info: TPM_Startup(1)
> Loading NVM.
>         Sending LoadNVM command
> ERROR[VTPM]: Failed to load NVM
> .INFO[VTPM]: [VTPM Listener]: VTPM Listener waiting for messages.
>         Reading LoadNVM header
>
> For every VM a new tpmd instance is created, ignoring the setting in my VM config file. In /var/vtpm are only two folders (fifos, socks) and two files (VTPM, vtpm.db). I am missing the one for non volatile memory. Any ideas what might be wrong here?
>
>
> 2. Using IAIK jTSS in VM (http://trustedjava.sourceforge.net/)
> I want to use the jTSS in my VMs. Some simple operations like taking ownership, extending a PCR and creating keys are working, but there seems to be a problem when it comes to loading keys. 
> For example, if I try to bind data after taking ownership using the jtpmtools example (jtt.sh bind) the operation fails. Java stack trace is:
> iaik.tc.tss.api.exceptions.tcs.TcTpmException: 
>
> TSS Error:
> error layer:                0x00 (TPM)
> error code (without layer): 0x1f
> error code (full):          0x1f
> error message: An IO error occurred transmitting information to the TPM
>
>         at iaik.tc.tss.impl.java.tcs.pbg.TcTpmCmdCommon.handleRetCode(TcTpmCmdCommon.java:73)
>         at iaik.tc.tss.impl.java.tcs.pbg.TcTpmCmdDeprMisc.TpmLoadKey(TcTpmCmdDeprMisc.java:222)
>         at iaik.tc.tss.impl.java.tcs.kcmgr.TcTcsKeyManager.LoadKeyByBlob(TcTcsKeyManager.java:72)
>         at iaik.tc.tss.impl.java.tcs.tcsi.TcTcsi.TcsipLoadKeyByBlob(TcTcsi.java:535)
>
> A lot of vtpm_manager output is produced. The last few lines are:
> TPMD[6]: tpm/tpm_cmd_handler.c:4162: Debug: tpm_handle_command()
> TPMD[6]: tpm/tpm_cmd_handler.c:3466: Debug: [TPM_TAG_RQU_AUTH1_COMMAND]
> TPMD[6]: tpm/tpm_cmd_handler.c:3654: Debug: [TPM_ORD_LoadKey]
> TPMD[6]: tpm/tpm_storage.c:526: Info: TPM_LoadKey()
> TPMD[6]: tpm/tpm_storage.c:528: Debug: [ parentHandle=40000000 ]
> TPMD[6]: tpm/tpm_cmd_handler.c:4117: Info: TPM command succeeded
> ERROR[VTPM]: [Backend Listener]: Error reading from DMI. Aborting... 
> INFO[VTPM]: [Backend Listener]: Backend Listener waiting for messages.
>
> Let me know, if you need the whole output. From my understanding it says "TPM command succeeded". What's the matter with "Error reading from DMI"? On my real TPM the command is working. 
>
> I also tried a self written application using jTSS. When trying to load a key vtpm_managers output finishes with:
> TPMD[1]: tpm/tpm_cmd_handler.c:4162: Debug: tpm_handle_command()
> TPMD[1]: tpm/tpm_cmd_handler.c:3466: Debug: [TPM_TAG_RQU_AUTH1_COMMAND]
> TPMD[1]: tpm/tpm_cmd_handler.c:3654: Debug: [TPM_ORD_LoadKey]
> TPMD[1]: tpm/tpm_storage.c:526: Info: TPM_LoadKey()
> TPMD[1]: tpm/tpm_storage.c:528: Debug: [ parentHandle=40000000 ]
> TPMD[1]: tpm/tpm_cmd_handler.c:4110: Info: TPM command failed: (0x0c) The key handle presented was invalid.
> TPMD[1]: tpm/tpm_eviction.c:56: Info: TPM_FlushSpecific()
> TPMD[1]: tpm/tpm_eviction.c:57: Debug: [ handle=02000000 resourceType=00000002 ]
> TPMD[1]: tpmd.c:227: Debug: Sent[14]: 0 0 0 1 0 c4 0 0 0 a 0 0 0 c 
>
> INFO[VTPM]: [Backend Listener]: Sending DMI's response to guest.
> INFO[VTPM]: [Backend Listener]: Backend Listener waiting for messages.
>
> Again this program is running well on a real TPM and I created the key which is tried to load before.
>
>
> 3. Trousers 0.2.9
> IAIK provides a java wrapper to use the TPM. Unfortunately this is only working with trousers version 0.2.9. Using trousers 0.3.1 the tpm tools like tpm_version are working. But as mentioned, the wrapper is only compatible with 0.2.9.  
> Using that version (no matter if I apply IFX patch or not) the result of tpm_version is: 
> Tspi_Context_Connect failed: 0x00003004 - layer=tsp, code=0004 (4), Internal software error
> TCSD's output:
> TCSD svrside.c:272 accepted socket 6
> TCSD tcsd_threads.c:225 Rx'd packet
> TCSD tcsd_wrap.c:4060 Dispatching ordinal 1
> TCSD tcsd_wrap.c:366 thread b7c7eb90 servicing a tcs_wrap_OpenContext request
> TCSD tcsd_threads.c:252 Sending 0x21 bytes back
> TCS tcs_utils.c:1317 Socket connection closed.
> TCSD tcsd_threads.c:264 Thread exiting.
> TCS tcscm.c:40 Closing context A0907600
> TCS tcscm.c:52 Context A0907600 closed
>
> When I start tcsd the following output appears:
> TDDL tddl.c:105 Calling write to driver
> TDDL tddl.c:116 ioctl: (25) Inappropriate ioctl for device
> TDDL tddl.c:117 Falling back to Read/Write device support.
>
> Does anyone know if 0.2.9 is just outdated or should it be working and there is something else wrong?
>
> Any hints are very welcome!
>
> Thanks in advance
> Tim
>
> [0]http://lists.xensource.com/archives/html/xense-devel/2007-04/msg00005.html
>
>