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RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands

From <Peter.Huewe@infineon.com>
Newsgroups linux.kernel
Subject RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands
Date 2017-03-17 17:40 +0100
Message-ID <tm350-Ro-17@gated-at.bofh.it> (permalink)
References <tgXjz-35T-3@gated-at.bofh.it> <tgXjA-35T-31@gated-at.bofh.it> <tm2si-kO-33@gated-at.bofh.it> <tm2LE-KO-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> 1. I've got a TPM that implements vendor-specific command codes. Those
> cannot be send to the TPM anymore, but are rejected with EINVAL.
>
>> 2. When upgrading the firmware on my TPM, it switches to a
>> non-standard communication mode for the upgrade process and does not
>> communicate using TPM2.0 commands during this time. Rejecting
>> non-TPM2.0 commands means upgrading won't be possible anymore.

>How non standard? Is the basic header even there? Are the lengths and status code right?

>This might be an argument to add a 'raw' ioctl or something specifically for this special case.

It follows the regular TPM command syntax and looks something like 1.2 commands.

Peter

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RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-17 17:00 +0100
  Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-03-17 17:20 +0100
    RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Peter.Huewe@infineon.com> - 2017-03-17 17:40 +0100
      RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-20 11:00 +0100
        Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-03-20 18:30 +0100
        Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Ken Goldman <kgold@linux.vnet.ibm.com> - 2017-03-20 23:50 +0100
          RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-21 17:00 +0100
  Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-03-17 21:50 +0100
    RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands <Alexander.Steffen@infineon.com> - 2017-03-20 11:00 +0100
      Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-03-27 07:30 +0200

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