sen_ip6_direction
dir = ipa->ipa_info.sen_ip6_direction;
sp->sadb_protocol_direction = ipa->ipa_info.sen_ip6_direction;
flow->sen_ip6_direction = ftype->sadb_protocol_direction;
flowmask->sen_ip6_direction = 0xff;
sab->sadb_protocol_direction = flow->sen_ip6_direction;
ddst->sen_ip6_direction = direction;
ipa->ipa_info.sen_ip6_direction =
ipo->ipo_addr.sen_ip6_direction;
ipa->ipa_mask.sen_ip6_direction =
ipo->ipo_mask.sen_ip6_direction;