fb288770e8
IPPROTO_IPV6 level socket option IPV6_CHECKSUM enabled and the checksum check fails, drop the message. Without this fix, an ICMP6 message was sent indicating a parameter problem. Thanks to bz@ for suggesting a way to simplify this fix. Reviewed by: bz@ MFC after: 1 week Sponsored by: Netflix, Inc. Differential Revision: https://reviews.freebsd.org/D19969
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include System include files.
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