[P4-dev] [External] Any code for http header processing

Sahil Gupta sg5414 at rit.edu
Tue May 5 17:13:34 EDT 2020


Thanks Ben,
I will look into it.

Is there any custom implementation of the application-level header
processing (not necessary HTTP)?
Any tutorial talking about any application-layer header parsing/ processing
would help me get started.


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05:00:35 PM

On Tue, May 5, 2020 at 4:54 PM Lewis, Ben <b.lewis at lancaster.ac.uk> wrote:

> As I understand it, P4 does not well suit variable length header
> processing, such as those present in HTTP.
>
>
>
> Andy Fingerhut talks about some of the challenges in P4 with variable
> length headers here:
> https://github.com/jafingerhut/p4-guide/tree/master/variable-length-header
>
>
>
> Regards
>
> Ben
>
>
>
> *From: *P4-dev <p4-dev-bounces at lists.p4.org> on behalf of Sahil Gupta <
> sg5414 at rit.edu>
> *Reply to: *"sg5414 at rit.edu" <sg5414 at rit.edu>
> *Date: *Tuesday, 5 May 2020 at 21:45
> *To: *p4-dev <p4-dev at lists.p4.org>
> *Subject: *[External] [P4-dev] Any code for http header processing
>
>
>
> *This email originated outside the University. Check before clicking links
> or attachments.*
>
> Hi all,
> 1. Is there any p4 code available in which HTTP header is parsed and some
> comparison is done on its field.
>
> 2. Also, looking for projects where some sort of FSM is implemented in
> match-action stages?
> Any help is appreciated.
>
> Thanks
>
> Sahil Gupta
>
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