K 10
svn:author
V 2
ae
K 8
svn:date
V 27
2019-12-13T11:47:58.979205Z
K 7
svn:log
V 300
Make TCP options parsing stricter.

Rework tcpopts_parse() to be more strict. Use const pointer. Add length
checks for specific TCP options. The main purpose of the change is
avoiding of possible out of mbuf's data access.

Reported by:	Maxime Villard
Reviewed by:	melifaro, emaste
MFC after:	1 week

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