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From Diwaker Gupta <diwa...@maginatics.com>
Subject Re: Thrift TBufferedTransport total message length
Date Wed, 05 Sep 2012 01:26:01 GMT
Nevo,

Do you mind sharing the code? We use TFramedTransport as well and have
been thinking about a Wireshark decoder ourselves.

cheers,
Diwaker

On Fri, Aug 31, 2012 at 11:49 AM, Nevo Hed <nhed+thriftusr@aereo.com> wrote:
> Hi Prabhakar
>
> I wrote a pcap-based capture-decode that is very simplistic with the main
> caveats that
>  A) Only handles TFramedTransport  (thats the only one we use, as we use
> TNonblockingServer)
>  B) Does *not* reassemble messages from TCP packets, so the messages need
> to be small
>
> I intended to clean it up and release one of these days ... as I did not
> implement TBufferedTransport, I can't really help, but what I find curious
> about your question is that you state that you use TDebugProtocol,
> but TDebugProtocol needs to be template-instantiated with a known type ...
> so how do you make it work for an arbitrary type seen on the wire?   (my
> program produce TDebugProtocol-LIKE output)
>
> Thanks!
>   -Nevo
>
>
>
>
> On Thu, Aug 23, 2012 at 2:06 PM, Prabhakar Henry
> <prabhakarh2000@gmail.com>wrote:
>
>> Hi,
>>
>> I am using Thrift 0.6.x version and I am writing a Thrift decoder ( using
>> TDebugProtocol)  to decode and print in text Thrift packets sent over
>> TCP which are captured by PCAP. I have access to the Thrift Definitions.
>>
>> I see two types of transports used TBufferedTransport and TFramedTransport.
>>
>> I need to know the total length of the Thrift payload so that I can
>> reassembly fragmented packets and decode.
>>
>> For TFramedTransport, I see that Thrift writes a 4 byte total payload
>> length just before encoding the Thrift payload. I am able to
>> For TBufferedTransport, I dont see a 4 byte total length. So I am unable to
>> reassemble the entire payload for decoding.
>>
>> Any suggestions on how to know the total payload length for
>> TBufferedTransport or does Thrift provide any way of handling cases like
>> this.
>>
>> regards,
>> Prabhakar
>>



-- 
http://maginatics.com

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