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From: Corey Bryant <coreyb@linux.vnet.ibm.com>
To: Will Drewry <wad@chromium.org>, Paolo Bonzini <pbonzini@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>, Paul Moore <pmoore@redhat.com>,
	qemu-devel@nongnu.org, Eduardo Otubo <otubo@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] [RFC] [PATCHv2 2/2] Adding basic calls to libseccomp in vl.c
Date: Mon, 02 Jul 2012 10:20:56 -0400	[thread overview]
Message-ID: <4FF1AE48.70801@linux.vnet.ibm.com> (raw)
In-Reply-To: <CABqD9hYFF6TRohk4ErEaa9WeXZ_GUW3Qf97jKkmwEaxHQD7iwA@mail.gmail.com>



On 07/01/2012 10:18 PM, Will Drewry wrote:
> On Sun, Jul 1, 2012 at 8:25 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> Il 18/06/2012 23:53, Corey Bryant ha scritto:
>>>>
>>>> Can each thread have separate seccomp whitelists? For example CPU
>>>> threads should not need pretty much anything but the I/O thread needs
>>>> I/O.
>>>>
>>>
>>> No, seccomp filters are defined and enforced at the process level.
>>
>> Perhaps we can add (at the kernel level) a way for seccomp filters to
>> examine the current tid.

Sorry for the confusion.  I corrected my statement in a later thread 
based on Will's input: 
http://lists.nongnu.org/archive/html/qemu-devel/2012-06/msg03212.html

>
> seccomp filters are attached to the task_struct and apply per "thread"
> or per process since they both get their own task_structs.  (For
> Linux, process==thread with shared resources.)  Filter programs are
> also inherited across clone/fork, so it's possible to install a
> "global" filter program which applies which is inherited during thread
> creation, then apply per-thread refinements by stacking on additional
> filters (at the cost of additional evaluation time).
>
> hth!
> will
>

Thanks!

-- 
Regards,
Corey

  reply	other threads:[~2012-07-02 14:31 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-13 19:20 [Qemu-devel] [RFC] [PATCHv2 0/2] Sandboxing Qemu guests with Libseccomp Eduardo Otubo
2012-06-13 19:20 ` [Qemu-devel] [RFC] [PATCHv2 1/2] Adding support for libseccomp in configure Eduardo Otubo
2012-06-13 19:45   ` Blue Swirl
2012-06-13 19:20 ` [Qemu-devel] [RFC] [PATCHv2 2/2] Adding basic calls to libseccomp in vl.c Eduardo Otubo
2012-06-13 19:56   ` Blue Swirl
2012-06-13 20:33     ` Daniel P. Berrange
2012-06-15 19:04       ` Blue Swirl
2012-06-18  8:33         ` Daniel P. Berrange
2012-06-18 15:22           ` Corey Bryant
2012-06-18 20:18             ` Blue Swirl
2012-06-18 21:53               ` Corey Bryant
     [not found]                 ` <CABqD9hYKLf9D37XsF6nvNmtJ=0wJ39Yu_A-JeWxDJ_8haBmEWA@mail.gmail.com>
     [not found]                   ` <4FE08025.6030406@linux.vnet.ibm.com>
     [not found]                     ` <CABqD9ha32FAuikpDojzO91Jg8Q6VTY340LShKzpvTx6FN_uacQ@mail.gmail.com>
2012-06-19 16:51                       ` Corey Bryant
2012-07-01 13:25                 ` Paolo Bonzini
2012-07-02  2:18                   ` Will Drewry
2012-07-02 14:20                     ` Corey Bryant [this message]
2012-06-13 20:30   ` Daniel P. Berrange
2012-06-15 19:06     ` Blue Swirl
2012-06-15 21:02       ` Paul Moore
2012-06-15 21:23         ` Blue Swirl
2012-06-15 21:36           ` Paul Moore
2012-06-16  6:46             ` Blue Swirl
2012-06-18 17:41               ` Corey Bryant
2012-06-19 11:04               ` Avi Kivity
2012-06-19 18:58                 ` Blue Swirl
2012-06-21  8:04                   ` Avi Kivity
     [not found]                     ` <4FEB7A4D.7050608@redhat.com>
     [not found]                       ` <CAAu8pHtYmoJ7WCK7LAOj_j2YU-nAgiLTg7q4qXL3Vu-kPRpZnw@mail.gmail.com>
2012-07-02 18:05                         ` Corey Bryant
2012-07-03 19:15                           ` Blue Swirl
2012-06-15 21:44           ` Eric Blake
2012-06-18  8:31         ` Daniel P. Berrange
2012-06-18  8:38           ` Daniel P. Berrange
2012-06-18 13:52           ` Paul Moore
2012-06-18 13:55             ` Daniel P. Berrange
2012-06-18 14:02               ` Paul Moore
2012-06-18 20:13               ` Eduardo Otubo
2012-06-18 20:23                 ` Blue Swirl
2012-06-18 15:29           ` Corey Bryant
2012-06-18 20:15           ` Blue Swirl
2012-06-19  9:23             ` Daniel P. Berrange
2012-06-19 18:44               ` Blue Swirl
2012-06-18  8:26       ` Daniel P. Berrange
2012-06-13 20:37   ` Daniel P. Berrange
2012-06-13 20:31 ` [Qemu-devel] [RFC] [PATCHv2 0/2] Sandboxing Qemu guests with Libseccomp Paul Moore
2012-06-14 21:59   ` [Qemu-devel] [libseccomp-discuss] " Kees Cook
2012-06-15 13:54     ` Paul Moore
2012-10-29 15:11       ` Corey Bryant
2012-10-29 15:32         ` Daniel P. Berrange
2012-10-29 15:40           ` Paul Moore
2012-10-29 15:51             ` Corey Bryant

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