[ndnSIM] Full name requested, but Data packet does not have wire format error

[Spyridon (Spyros) Mastorakis]

Hi Elisa,

I tried to reproduce the error, but everything works fine for me.

Could you please send me as an attachment the source code of your scenario, so that I reproduce the error?

Thank you.

--
Spyridon (Spyros) Mastorakis
Personal Website: http://cs.ucla.edu/~mastorakis/
Internet Research Laboratory
PhD Computer Science
UCLA




> On Jun 23, 2015, at 5:18 PM, Elisa Mannes <elisam at inf.ufpr.br> wrote:
> 
> Hi Spyros,
> 
> Thank you for your hint. I've managed to isolate the problem, now I wonder if you have some thoughts on how to fix it. Here is what is happening:
> 
> I am changing signature field in each Data packet to match nonce value of its Interest (it is a workaround I need). I am placing this code on forwarder.cc, Forwarder::onIncomingInterest(Face& inFace, const Interest& interest) method, before the node send data to face in case of a cache hit:
> 
> ndn::Signature signature;
> ndn::SignatureInfo signatureInfo(static_cast< ::ndn::tlv::SignatureTypeValue>(interest.getNonce()));
> 
> signature.setInfo(signatureInfo);
> signature.setValue(Block(interest.getNonce()));
> 
> I am doing something wrong here, since I've commented these lines and the error is gone. Do you spot anything unusual?
> 
> Thanks!
> 
> On Tue, Jun 23, 2015 at 10:38 AM, Spiros Mastorakis <spiros.mastorakis at gmail.com> wrote:
> Hi Elisa,
> 
> as it is mentioned in the error message, the data packets may have not been signed properly or their wire format has not been created properly.
> 
> Do you have any specific reasons that you would like to acquire the full name of a data packet? Have you modified any parts of the ndnSIM codebase?
> 
> Thanks,
> Spyros
> 
> On Tuesday, June 23, 2015, Elisa Mannes <elisam at inf.ufpr.br> wrote:
> Hello all,
> 
> ​I am simulating a simple producer/consumer scenario with 2914.r0-conv-annotated topology and I am getting the following error:​
> 
> terminate called after throwing an instance of 'ndn::Data::Error'
>   what():  Full name requested, but Data packet does not have wire format (e.g., not signed)
> 
> This error happens when the same consumer requests the same file in a short period of time.
> 
> I found a related problem here http://gerrit.named-data.net/#/c/1484/1/tests/other/cs-smoketest.cpp but I am not sure how to solve my problem with this information. I am using ndnSim 2.0. Could you help me?
> 
> Thanks in advance,
> Elisa
>