kern/56588: ESP's extended sequence number support

[andrew.cagney%gmail.com@localhost]

>Number:         56588
>Category:       kern
>Synopsis:       ESP's extended sequence number support
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 28 23:30:00 +0000 2021
>Originator:     Andrew Cagney
>Release:        mainline
>Organization:
>Environment:
NetBSD netbsdw 9.2 NetBSD 9.2 (GENERIC) #0: Wed May 12 13:15:55 UTC 2021  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/i386/compile/GENERIC i386

>Description:
It looks like ESP/AH's extended sequence numbers, per:
 https://www.rfc-editor.org/rfc/rfc4303#section-2.2.1
isn't supported; looking at the kernel esp/ah headers they are hard wired to 32-bits.
>How-To-Repeat:

>Fix: