IABSD.fr/src

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• Author : bluhm
  Date : 2022-08-15 16:15:36
  Hash : 0b448d84
  Message : Run IPv6 hop-by-hop options processing in parallel. The ip6_hbhchcheck() code is MP safe and moves from ip6_local() to ip6_ours(). If there are any options, store the chain offset and next protocol in a mbuf tag. When dequeuing without tag, it is a regular IPv6 header. As mbuf tags degrade performance, use them only if a hop-by-hop header is present. Such packets are rare and pf drops them by default. OK mvs@