IPV6_DSTOPTS
put_cmsg(msg, SOL_IPV6, IPV6_DSTOPTS, len, ptr);
case IPV6_DSTOPTS:
if (cmsg->cmsg_type == IPV6_DSTOPTS) {
if (newtype != IPV6_DSTOPTS && opt->dst1opt)
ipv6_renew_option(IPV6_DSTOPTS, &opt2->dst1opt,
case IPV6_DSTOPTS:
case IPV6_DSTOPTS:
case IPV6_DSTOPTS:
opt.cmsg.exthdr.val = IPV6_DSTOPTS;