From: <Peter.Huewe@infineon.com>
To: <jgunthorpe@obsidianresearch.com>, <Alexander.Steffen@infineon.com>
Cc: <James.Bottomley@HansenPartnership.com>,
<linux-kernel@vger.kernel.org>, <dhowells@redhat.com>,
<linux-security-module@vger.kernel.org>,
<tpmdd-devel@lists.sourceforge.net>
Subject: RE: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands
Date: Fri, 17 Mar 2017 16:35:50 +0000 [thread overview]
Message-ID: <bca2bee3c1b84100ac72238425ac4791@MUCSE612.infineon.com> (raw)
In-Reply-To: <20170317161614.GA28082@obsidianresearch.com>
> 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
WARNING: multiple messages have this Message-ID (diff)
From: Peter.Huewe@infineon.com (Peter.Huewe at infineon.com)
To: linux-security-module@vger.kernel.org
Subject: [tpmdd-devel] [PATCH v3 2/7] tpm: validate TPM 2.0 commands
Date: Fri, 17 Mar 2017 16:35:50 +0000 [thread overview]
Message-ID: <bca2bee3c1b84100ac72238425ac4791@MUCSE612.infineon.com> (raw)
In-Reply-To: <20170317161614.GA28082@obsidianresearch.com>
> 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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WARNING: multiple messages have this Message-ID (diff)
From: <Peter.Huewe-d0qZbvYSIPpWk0Htik3J/w@public.gmane.org>
To: jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org,
Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w@public.gmane.org
Cc: James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org,
dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v3 2/7] tpm: validate TPM 2.0 commands
Date: Fri, 17 Mar 2017 16:35:50 +0000 [thread overview]
Message-ID: <bca2bee3c1b84100ac72238425ac4791@MUCSE612.infineon.com> (raw)
In-Reply-To: <20170317161614.GA28082-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
> 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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next prev parent reply other threads:[~2017-03-17 16:35 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-03 15:19 [PATCH v3 0/7] in-kernel resource manager Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 1/7] tpm: move length validation to tpm_transmit() Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 2/7] tpm: validate TPM 2.0 commands Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-17 15:40 ` [tpmdd-devel] " Alexander.Steffen
2017-03-17 15:40 ` Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w
2017-03-17 15:40 ` [tpmdd-devel] " Alexander.Steffen at infineon.com
2017-03-17 16:16 ` Jason Gunthorpe
2017-03-17 16:16 ` Jason Gunthorpe
2017-03-17 16:35 ` Peter.Huewe [this message]
2017-03-17 16:35 ` Peter.Huewe-d0qZbvYSIPpWk0Htik3J/w
2017-03-17 16:35 ` [tpmdd-devel] " Peter.Huewe at infineon.com
2017-03-20 9:54 ` Alexander.Steffen
2017-03-20 9:54 ` Alexander.Steffen
2017-03-20 9:54 ` Alexander.Steffen at infineon.com
2017-03-20 17:23 ` Jason Gunthorpe
2017-03-20 17:23 ` Jason Gunthorpe
2017-03-20 17:23 ` [tpmdd-devel] " Jason Gunthorpe
2017-03-20 19:42 ` Ken Goldman
2017-03-20 19:42 ` Ken Goldman
2017-03-20 19:42 ` [tpmdd-devel] " Ken Goldman
2017-03-21 15:44 ` Alexander.Steffen
2017-03-21 15:44 ` Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w
2017-03-21 15:44 ` [tpmdd-devel] " Alexander.Steffen at infineon.com
2017-03-17 20:42 ` Jarkko Sakkinen
2017-03-17 20:42 ` Jarkko Sakkinen
2017-03-17 20:42 ` [tpmdd-devel] " Jarkko Sakkinen
2017-03-20 9:56 ` Alexander.Steffen
2017-03-20 9:56 ` Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w
2017-03-20 9:56 ` [tpmdd-devel] " Alexander.Steffen at infineon.com
2017-03-27 5:25 ` Jarkko Sakkinen
2017-03-27 5:25 ` Jarkko Sakkinen
2017-03-27 5:25 ` [tpmdd-devel] " Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 3/7] tpm: export tpm2_flush_context_cmd Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 4/7] tpm: infrastructure for TPM spaces Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-17 15:41 ` [tpmdd-devel] " Alexander.Steffen
2017-03-17 15:41 ` Alexander.Steffen-d0qZbvYSIPpWk0Htik3J/w
2017-03-17 15:41 ` [tpmdd-devel] " Alexander.Steffen at infineon.com
2017-03-17 20:44 ` Jarkko Sakkinen
2017-03-17 20:44 ` Jarkko Sakkinen
2017-03-17 20:44 ` [tpmdd-devel] " Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 5/7] tpm: split out tpm-dev.c into tpm-dev.c and tpm-common-dev.c Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 6/7] tpm: expose spaces via a device link /dev/tpmrm<n> Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-03 15:19 ` [PATCH v3 7/7] tpm2: add session handle context saving and restoring to the space code Jarkko Sakkinen
2017-03-03 15:19 ` Jarkko Sakkinen
2017-03-06 21:07 ` [PATCH v3 0/7] in-kernel resource manager Jarkko Sakkinen
2017-03-06 21:07 ` Jarkko Sakkinen
2017-03-11 8:55 ` Jarkko Sakkinen
2017-03-11 8:55 ` Jarkko Sakkinen
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