From: Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: "Wilck, Martin" <martin.wilck-RJz4owOZxyXQFUHtdCDX3A@public.gmane.org>
Cc: "tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org"
<tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: Question on Linux TSS architecture design (kernel vs. user space access)
Date: Fri, 18 Dec 2015 13:57:34 +0200 [thread overview]
Message-ID: <20151218115734.GA5147@intel.com> (raw)
In-Reply-To: <20151218115137.GA4774-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
On Fri, Dec 18, 2015 at 01:51:37PM +0200, Jarkko Sakkinen wrote:
> On Fri, Dec 18, 2015 at 12:21:01PM +0100, Wilck, Martin wrote:
> > > The only way to restrict this would be to only allow root access to
> > > the keyctl commands affecting the TPM.
> >
> > I'll leave it to Jarkko to comment on that.
> > Btw, wouldn't the "keys, trusted" API need some sort of resource
> > management, too? And wouldn't it make sense to merge that all into a
> > single TPM resource pool?
>
> Well this should have been done when the syscall was originally
> introduced. I think the right long term solution would be to do resource
> swapping mechnaism (like the LRU mechanism that I described).
If you really want to block "dangerous" syscalls, IMHO the way to go is
seccomp like browsers do.
> /Jarkko
/Jarkko
------------------------------------------------------------------------------
next prev parent reply other threads:[~2015-12-18 11:57 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-13 15:42 [PATCH v2 0/3] TPM 2.0 trusted key features for v4.5 Jarkko Sakkinen
2015-12-13 15:42 ` Jarkko Sakkinen
2015-12-13 15:42 ` Jarkko Sakkinen
2015-12-13 15:42 ` [PATCH v2 1/3] keys, trusted: fix: *do not* allow duplicate key options Jarkko Sakkinen
2015-12-14 13:46 ` Mimi Zohar
2015-12-14 14:54 ` Jarkko Sakkinen
2015-12-13 15:42 ` [PATCH v2 2/3] keys, trusted: select hash algorithm for TPM2 chips Jarkko Sakkinen
2015-12-13 15:42 ` Jarkko Sakkinen
2015-12-13 15:42 ` [PATCH v2 3/3] keys, trusted: seal with a TPM2 authorization policy Jarkko Sakkinen
2015-12-14 13:49 ` Mimi Zohar
2015-12-14 14:56 ` Jarkko Sakkinen
[not found] ` <20151214095830.GA21291@intel.com>
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E682BF197@ABGEX74E.FSC.NET>
[not found] ` <20151214112501.GA26100@intel.com>
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E682BF19D@ABGEX74E.FSC.NET>
[not found] ` <20151215233237.GA31965@obsidianresearch.com>
[not found] ` <201512161652.tBGGqWPG019442@d03av04.boulder.ibm.com>
[not found] ` <20151216171633.GB32594@obsidianresearch.com>
[not found] ` <201512161721.tBGHLqXh009986@d03av03.boulder.ibm.com>
[not found] ` <20151216174523.GC32594@obsidianresearch.com>
[not found] ` <201512161804.tBGI47vu000331@d01av02.pok.ibm.com>
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E69407545@ABGEX74E.FSC.NET>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA5864641@EXCH2010A.sit.fraunhofer.de>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA5864641-wI35/lLZEdT5yyJIIHUSGGSU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2015-12-18 0:57 ` Question on Linux TSS architecture design (kernel vs. user space access) Jason Gunthorpe
[not found] ` <201512171523.tBHFNlJ6013434@d03av03.boulder.ibm.com>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA58648F1@EXCH2010A.sit.fraunhofer.de>
[not found] ` <201512171620.tBHGK3GE030569@d03av04.boulder.ibm.com>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA586493C@EXCH2010A.sit.fraunhofer.de>
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA586493C-wI35/lLZEdT5yyJIIHUSGGSU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2015-12-18 10:06 ` Wilck, Martin
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E6940754C-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 10:51 ` Jarkko Sakkinen
[not found] ` <20151218105148.GA12882-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 10:53 ` Jarkko Sakkinen
[not found] ` <20151218105323.GB12882-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 11:09 ` Wilck, Martin
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E6940754D-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 11:41 ` Jarkko Sakkinen
[not found] ` <20151218114131.GA3287-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 14:10 ` Ken Goldman
2015-12-21 13:22 ` Fuchs, Andreas
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA586A57C-wI35/lLZEdRyXeJKmmMAp2SU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2015-12-21 14:23 ` Stefan Berger
2015-12-22 21:23 ` Jason Gunthorpe
[not found] ` <20151222212348.GB9461-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-12-23 15:02 ` Ken Goldman
2015-12-24 11:42 ` Jarkko Sakkinen
[not found] ` <20151224114241.GA5119-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-24 15:09 ` Ken Goldman
2016-01-02 20:39 ` Jason Gunthorpe
[not found] ` <20160102203957.GA19490-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2016-01-03 13:53 ` Jarkko Sakkinen
[not found] ` <20160103135346.GA4047-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-01-04 16:22 ` Fuchs, Andreas
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA5877E95-wI35/lLZEdRyXeJKmmMAp2SU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2016-01-04 18:19 ` Jarkko Sakkinen
[not found] ` <20160104181915.GA15908-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-01-04 20:06 ` Mimi Zohar
2016-01-05 9:43 ` Fuchs, Andreas
[not found] ` <9F48E1A823B03B4790B7E6E69430724DA58784A8-wI35/lLZEdRyXeJKmmMAp2SU2VBt9E6NG9Ur7JDdleE@public.gmane.org>
2016-01-05 13:13 ` Mimi Zohar
2016-01-05 17:39 ` Jason Gunthorpe
2015-12-22 6:59 ` Jarkko Sakkinen
[not found] ` <20151222065917.GB7867-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2016-01-04 16:07 ` Fuchs, Andreas
2016-01-07 21:07 ` TPM2 resource manager vendor specific commands Ken Goldman
[not found] ` <201512171533.tBHFXn35003792@d03av02.boulder.ibm.com>
[not found] ` <201512171533.tBHFXn35003792-nNA/7dmquNI+UXBhvPuGgqsjOiXwFzmk@public.gmane.org>
2015-12-18 11:21 ` Question on Linux TSS architecture design (kernel vs. user space access) Wilck, Martin
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E6940754E-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 11:51 ` Jarkko Sakkinen
[not found] ` <20151218115137.GA4774-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-12-18 11:57 ` Jarkko Sakkinen [this message]
2015-12-18 13:40 ` Stefan Berger
[not found] ` <C5A28EF7B98F574C85C70238C8E9ECC04E69407545-bIoXcEM4pvRAuK1PVaBULA@public.gmane.org>
2015-12-18 15:03 ` Kenneth Goldman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20151218115734.GA5147@intel.com \
--to=jarkko.sakkinen-vuqaysv1563yd54fqh9/ca@public.gmane.org \
--cc=martin.wilck-RJz4owOZxyXQFUHtdCDX3A@public.gmane.org \
--cc=tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.