[quagga-dev 8841] Re: [quagga-users 12469] Re: Possible OSPF issue.

Jerry Scharf scharf at isc.org
Wed Sep 14 00:10:57 BST 2011


I am a tester with the Open Source Routing Forum. We have a Mu Dynamics 
box and we plan to "fuzz" test all the protocols against it. We have 
worked on BGP so far and are seeing some issues turn up.

We will be getting to OSPF in a couple weeks and will keep the lists 
informed as to how it progresses.

When someone decides to start tackling the bugs we find, I would like to 
work with them to come up with the best way to give them reproducible 
test cases and how to test proposed code changes.

We are at the beginning of the effort and want to come up with a process 
that is going to work for everyone and make as much progress as possible 
in improving the code base.


On 09/13/2011 10:53 AM, mike wrote:
> On 09/13/2011 05:51 AM, Paul Jakma wrote:
>> On Mon, 12 Sep 2011, Nathan Gibbs wrote:
>>> When auditing our environment with an nmap protocol scan.
>>> nmap -sO
>>> I've seen all the OSPF daemons fall over.
>>> It doesn't matter if they are vendor supplied or compiled from source.
>> Which version?
>>> Anyone else seeing this?
>>> Is it a bug or a feature?
>> These would be bugs.
>>> Is there a way to mitigate this?
>> Identify where it crashes so it can be fixed. E.g. by running an ospfd
>> under gdb and getting a backtrace once it has crashed/asserted.
> I asked this in the not too recent past wether quagga ospf exchanges 
> have ever been 'fuzzed', and never got a response. I would like to 
> suggest that there should be some sort of test suite that includes 
> throwing both structured and unstructured randomized noise at the 
> deamons on their routing protocol ports in order to help shake out 
> issues in error handling and boundary checking.
> Mike-
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