Re: [Sipping] Testing the water: A transaction torture-tests draft

[Byron Campen <[e-mail]>]

	This is mostly Dialog-related weirdness (although there are a few  
transaction-level cases here). Most of the examples are things that  
can arise accidentally between compliant endpoints. I was thinking a  
draft that would focus exclusively on transaction-level cases,  
including cases where there is a broken/malicious endpoint sending  
complete garbage. (For instance, ACK in a NIT, response to an ACK,  
sending provisionals after a final response, mixed final responses,  
an INVITE collides with a previous ACK/200's transaction id, etc)

Best regards,
Byron Campen

> Hi Byron,
>
> are you thinking of something similar to the draft below?... or  
> something else?
>
> http://www.ietf.org/internet-drafts/draft-ietf-sipping-race- 
> examples-01.txt
>
> Cheers,
>
> Gonzalo
>
>
> Byron Campen wrote:
>>     I was thinking a torture-tests draft in the same spirit as RFC  
>> 4475 and draft-ietf-sipping-ipv6-torture-tests; an enumeration of  
>> test-cases that could cause trouble for an unsuspecting  
>> implementation, with exposition on what makes the case  
>> interesting, and how implementations should react. Of course, the  
>> tests themselves would read differently, since the contents of the  
>> messages won't matter apart from stuff like the method and branch  
>> params.
>> Best regards,
>> Byron Campen
>>>    From: Byron Campen <[e-mail]>
>>>
>>>    I have doing a lot of work lately on hardening a SIP stack, and I
>>>    have repeatedly come across bugs triggered not by syntactic  
>>> garbage
>>>    (malformed header-field-values and the like), but by semantic
>>>    garbage, usually in the form of transaction collisions. I'm  
>>> trying
>>>    to get a feel for working-group interest on the subject, so  
>>> let me
>>>    know what you think.
>>>
>>> It's obviously very valuable work.  What are you proposing?
>>>
>>> Dale
>>>
>>>
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>

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