Wireshark mailing list archives
Re: composite tvbuffs
From: "Scott Mueller" <smueller () osisoft com>
Date: Fri, 24 Sep 2010 17:33:25 -0700
Hello Stephen, Thank you for your response. I'm working with a multi-layered protocol that relies on TCP/IP, and in some cases the contiguous payload that I need to work with is spread out across several well-formed messages. In each of these messages, I parse out the headers in order to determine whether the payload contains all of the necessary information to dissect, or if I need to aggregate payloads from further messages, reassemble these, and then dissect when I have everything. I might be working with very large messages when adding stress to the software that generates this data, so I'm just trying to avoid allocating everything in a very large contiguous block. Thanks again, M. Scott Mueller -----Original Message----- From: wireshark-dev-bounces () wireshark org [mailto:wireshark-dev-bounces () wireshark org] On Behalf Of Stephen Fisher Sent: Friday, September 24, 2010 5:23 PM To: Developer support list for Wireshark Subject: Re: [Wireshark-dev] composite tvbuffs On Fri, Sep 24, 2010 at 01:12:17PM -0700, Scott Mueller wrote:
I have messages that are split up on a size boundary
What exactly do you mean? That within a captured packet in Wireshark, each message you need to dissect starts a certain byte positions or...?
This is great, because I then pass this into tvb_new_real_data and then dissect those "large" tvbuffs.
Or do they need to be reassembled across multiple packets?
Searching through the tvbuff.h header led me to the tvb_*composite* functions. Further searches on those functions resulted in an uncertainty as to whether or not these work.
I started to try using those quite a while back and didn't determine that they worked either, but I ended up needing to do my code a different way anyway. ________________________________________________________________________ ___ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- composite tvbuffs Scott Mueller (Sep 24)
- Re: composite tvbuffs Stephen Fisher (Sep 24)
- Re: composite tvbuffs Scott Mueller (Sep 24)
- Re: composite tvbuffs Stephen Fisher (Sep 24)
- Re: composite tvbuffs Scott Mueller (Sep 27)
- Re: composite tvbuffs Scott Mueller (Sep 27)
- Re: composite tvbuffs Scott Mueller (Sep 24)
- Re: composite tvbuffs Stephen Fisher (Sep 24)