[RFC] pcapng: record received RSS hash in pcap file

[Ben Magistro]

Tested with Wireshark 4.1.0rc0-599-g708da4852678 (and older version to
confirm no issues)

Tested-by: Ben Magistro <koncept1 at gmail.com>

On Fri, Oct 21, 2022 at 4:05 PM Stephen Hemminger <
stephen at networkplumber.org> wrote:

> On Tue, 26 Jul 2022 14:36:19 -0700
> Stephen Hemminger <stephen at networkplumber.org> wrote:
>
> > There is an option for recording RSS hash with packets in the
> > pcapng standard. This implements this for all received packets.
> >
> > There is a corner case that can not be addressed with current
> > DPDK API's. If using rte_flow() and some hardware it is possible
> > to write a flow rule that uses another hash function like XOR.
> > But there is no API that records this, or provides the algorithm
> > info on a per-packet basis.
> >
> > The current version of wireshark does not display the recorded
> > hash option. But if we build it they will come.
>
> Support for displaying RSS hash in record has been merged into
> Wireshark for 4.1 release.
>
> Could this please be acked and merged.
>
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