Access domU from dom0

Access domU from dom0

[Abhishek Bichhawat]

[-- Attachment #1.1: Type: text/plain, Size: 276 bytes --]

Hi,

I was wondering if there was any technique to access the ports and
respective processes, which are listening on the ports, in the domU from the
dom0.

-- 
Thanks and Regards,
Abhishek Bichhawat
Visiting Scholar
Dept. of Computing
Macquarie University,
Sydney, Australia.

[-- Attachment #1.2: Type: text/html, Size: 755 bytes --]

[-- Attachment #2: Type: text/plain, Size: 137 bytes --]

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Re: [Xen-devel] Access domU from dom0

[Ian Campbell]

Please don't cross post (I have just added this advice to the
AskingXenDevelQuestions wiki page, which I recommend you read).

On Fri, 2011-06-03 at 08:44 +0100, Abhishek Bichhawat wrote:
> I was wondering if there was any technique to access the ports and
> respective processes, which are listening on the ports, in the domU
> from the dom0.

What sort of ports? That word has several meanings in a Xen system.
(e.g. network port, event channel). Please describe what you are trying
to achieve.

Ian.

Re: Access domU from dom0

[Abhishek Bichhawat]

[-- Attachment #1.1: Type: text/plain, Size: 1095 bytes --]

Sorry.

I was referring to the ports associated with the sockets on which network
connections are made.
The ports are the ones on which a process listens and waits for a packet to
arrive from the network.
I would like to get the details of these ports and monitor them in dom0 to
see what processes are accessing the internet and sending and receiving
packets.


On Fri, Jun 3, 2011 at 2:07 PM, Ian Campbell <Ian.Campbell@citrix.com>wrote:

> Please don't cross post (I have just added this advice to the
> AskingXenDevelQuestions wiki page, which I recommend you read).
>
> On Fri, 2011-06-03 at 08:44 +0100, Abhishek Bichhawat wrote:
> > I was wondering if there was any technique to access the ports and
> > respective processes, which are listening on the ports, in the domU
> > from the dom0.
>
> What sort of ports? That word has several meanings in a Xen system.
> (e.g. network port, event channel). Please describe what you are trying
> to achieve.
>
> Ian.
>
>
>


-- 
Thanks and Regards,
Abhishek Bichhawat
Visiting Scholar
Dept. of Computing
Macquarie University,
Sydney, Australia.

[-- Attachment #1.2: Type: text/html, Size: 1957 bytes --]

[-- Attachment #2: Type: text/plain, Size: 138 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Re: Access domU from dom0

[Ian Campbell]

Please don't top post.

On Fri, 2011-06-03 at 10:44 +0100, Abhishek Bichhawat wrote:
> Sorry.
> 
> I was referring to the ports associated with the sockets on which
> network connections are made.
> The ports are the ones on which a process listens and waits for a
> packet to arrive from the network.
> I would like to get the details of these ports and monitor them in
> dom0 to see what processes are accessing the internet and sending and
> receiving packets.

In general dom0 doesn't have much insight into the internals of other
guest OSes, which is what you would need in order to be able to match
network sockets to processes.

The Xen Introspection project (AKA xenaccess?) might have some of the
building blocks you need to make something like this work though. I'm
afraid I don't know any more about that project than its existence.

The other alternative would be an in guest daemon which collects and
exports this data, e.g. into xenstore.

Ian.

Re: Access domU from dom0

[Bryan D. Payne]

> The Xen Introspection project (AKA xenaccess?) might have some of the
> building blocks you need to make something like this work though. I'm
> afraid I don't know any more about that project than its existence.

You'll probably find the VMWall research paper to be useful here.

http://www.cc.gatech.edu/~abhinav/papers/raid08-vmwall.pdf

VMWall is effectively a firewall for domU that runs in dom0.  It uses
introspection of the guest to get the semantic information needed to
operate via dom0.

-bryan