TCA_SKBEDIT_MASK
[TCA_SKBEDIT_MASK] = { .len = sizeof(u32) },
if (tb[TCA_SKBEDIT_MASK] != NULL) {
mask = nla_data(tb[TCA_SKBEDIT_MASK]);
nla_put_u32(skb, TCA_SKBEDIT_MASK, params->mask))