[Click] click Digest, Vol 81, Issue 5

[Eddie Kohler]

A bit more: Back when the PlanetLab stuff was added, you would supply Click's 
configure script with the "--with-proper" argument; this would enable support 
for the root-ish RawSocket and Socket elements.

A click.spec file is in fact included in the top-level Click directory.

John, if RawSocket is in fact dead I would appreciate confirmation so I can 
remove it from the tree.

E

John Russell Lane wrote:
> Hi Holly,
> 
> We've been using Click for a while on PlanetLab ...
> 
> As you likely already know, PlanetLab (and Vini) run within VServers,
> which mean you have to do a little more work than usual to get packets
> into the Click router.  FromDevice/ToDevice/RawSocket* and anything
> that relies on root privileges are known *not* to work on PlanetLab
> and you're generally limited to a bound Socket listening and sending
> on a given port (though I heard once that it was possible to get the
> tap device working, I've not tried).
> 
> Though I think the base installation is a somewhat old Fedora Core 8,
> getting Click built on PL isn't particularly difficult and there is
> (IIRC) a click.spec file for it running around somewhere (in the Click
> distribution? ...).  The average PL box is highly loaded, though, so
> if you have access to a local Core 8 install or an environment like
> Emulab, it's much faster to build your things there (e.g., Emulab's
> FEDORA8-STD image seems to work well for our work).
> 
> There may be a few other annoyances/gotchas depending upon what you're
> looking to do; the PL users list might also be a good place to search
> for answers / ask questions.
> 
> jrl.
> 
> * Note: IIRC, there used to be support for RawSocket (the element) on
> PlanetLab such that it would open a socket for you and allow you to
> use it with the same semantics as on a normal machine (though you
> could only send receive on one port), provided that the IP/port
> information were not spoofed.  This may even be documented still
> somewhere, but to the best of my knowledge the feature was dropped in
> the latest PL upgrade a year or more ago.
> 
>> Date: Wed, 03 Mar 2010 09:52:12 +0100
>> From: Roberto Riggio <roberto.riggio at create-net.org>
>> Subject: Re: [Click] Click on Planet Lab
>> To: click at pdos.csail.mit.edu
>> Message-ID: <4B8E233C.1010507 at create-net.org>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> Hi,
>>
>> we are actually using click to run our multiradio mesh network
>> on planetlab+vini. Vini is useful in our case because it allows to have
>> performance isolation at the network level between the various slices.
>>
>> At the moment we are using some very simple topologies (string, circle).
>> The very interesting thing is that we can run the same code on planetlab
>> and on the actual wireless routers.
>>
>> We plan to put some online resources on the project website as soon as
>> we can cleanup scripts and codes (www.wing-project.org).
>>
>> R.
>>
>> On 03/02/2010 08:00 PM, Holly Esquivel wrote:
>>> Hello Fellow Click Users,
>>>
>>> I was wondering if anyone has had experience getting Click to run on
>>> Planet Lab nodes. I heard that it was possible but that was about it.
>>> Any advice you may have would be greatly appreciated as I get ready to
>>> try to it.
>>>
>>> Thanks!
>>>
>>> Sincerely,
>>> Holly
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