From: Guus Sliepen <guus@meshlink.io>
Date: Sun, 18 Oct 2015 18:30:48 +0000 (+0200)
Subject: Fix the logic for determining whether a packets has an acceptable ack seqno.
X-Git-Url: http://git.meshlink.io/?a=commitdiff_plain;h=0c29e6bb0a943f9d06067628f894495dcc01c5ba;hp=0c29e6bb0a943f9d06067628f894495dcc01c5ba;p=utcp

Fix the logic for determining whether a packets has an acceptable ack seqno.

snd.last accurately tracks the last possible seqno that can be acked, so
use it. This fixes a case where retransmitted ACKs of a FIN were not handled
correctly.
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