K 10
svn:author
V 2
kp
K 8
svn:date
V 27
2021-01-05T20:04:11.258091Z
K 7
svn:log
V 584
pf tests: Verify (tcp) checksum modification on unaligned options

It turns out pf incorrectly updates the TCP checksum if the TCP option
we're modifying is not 2-byte algined with respect to the start of the
packet.

Create a TCP packet with such an option and throw it through a scrub
rule, which will update timestamps and modify the packet.

PR:		240416
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D27688

(cherry picked from commit 2d3fda5fa1dc99aa8788e5f8d8bb71e682101063)

Git Hash:   5c712c8748f304f57e18b09f890b46d5f3d13a2e
Git Author: kp@FreeBSD.org
END