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Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug |
Date: |
Wed, 24 Oct 2012 17:21:47 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121016 Thunderbird/16.0.1 |
Il 24/10/2012 16:18, Corey Bryant ha scritto:
>
>
> On 10/18/2012 11:15 AM, Paolo Bonzini wrote:
>> Il 17/10/2012 15:15, Eduardo Otubo ha scritto:
>>> With the inclusion of the new "double whitelist" seccomp filter, Qemu
>>> won't be able to execve() in runtime, thus, no hotplug net devices
>>> allowed.
>>>
>>> Signed-off-by: Eduardo Otubo <address@hidden>
>>
>> Please check this in net_init_tap instead. When using libvirt, hotplug
>> is done with a completely different mechanism that involves
>> file-descriptor passing and does not require executing a helper.
>>
>> Paolo
>>
>
> Are you sure net_init_tap() is the right place for this check?
Yes, assuming there is a global that says whether the seccomp sandbox is
in effect. Even something like "if (sandbox_active && !tap->has_fd)
error(...)" can be enough.
Paolo
- Re: [Qemu-devel] [PATCH 3/4] Support for "double whitelist" filters, (continued)
Re: [Qemu-devel] [PATCH 3/4] Support for "double whitelist" filters, Corey Bryant, 2012/10/19
[Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Eduardo Otubo, 2012/10/17
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/18
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Paolo Bonzini, 2012/10/18
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/24
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/24
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug,
Paolo Bonzini <=
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/24
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Paolo Bonzini, 2012/10/24
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/24
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/24
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Paolo Bonzini, 2012/10/25
- Re: [Qemu-devel] [PATCH 4/4] Warning messages on net devices hotplug, Corey Bryant, 2012/10/26
Re: [Qemu-devel] [PATCH 1/4] Adding new syscalls (bugzilla 855162), Corey Bryant, 2012/10/19