conn_lookup(struct conntrack *ct, const struct conn_key *key,
            long long now, struct conn **conn_out, bool *reply)
{
    uint32_t hash = conn_key_hash(key, ct->hash_basis);
    return conn_key_lookup(ct, key, hash, now, conn_out, reply);
}
conn_lookup(struct conntrack *ct, const struct conn_key *key,
            long long now, struct conn **conn_out, bool *reply)
{
    uint32_t hash = conn_key_hash(key, ct->hash_basis);
    return conn_key_lookup(ct, key, hash, now, conn_out, reply);
}