Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1603439

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

From Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Newsgroups linux.kernel
Subject Re: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands
Date 2017-03-17 17:20 +0100
Message-ID <tm2LE-KO-25@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>
Organization linux.* mail to news gateway

Show all headers | View raw

On Fri, Mar 17, 2017 at 03:40:15PM +0000, Alexander.Steffen@infineon.com wrote:

> 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.

Jason

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

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

csiph-web