NEXTHDR_ESP
if (likely(ipv6_hdr->nexthdr == NEXTHDR_ESP ||
if (exthdr->nexthdr == NEXTHDR_ESP)
if (nexthdr != NEXTHDR_NONE && nexthdr != NEXTHDR_ESP)
if (nexthdr == NEXTHDR_ESP) {
if (fh->nexthdr == NEXTHDR_ESP || fh->nexthdr == NEXTHDR_AUTH)