/*
* General entry point.
*
* Here the NAT64 implementation validates that the
* incoming packet is IPv4 or IPv6. If it isn't, it silently drops the packet.
* If it's one of those two, it calls it's respective function, since the IPv6
* header is handled differently than an IPv4 header.
*/
unsigned int nat64_tg(struct sk_buff *skb,
const struct xt_action_param *par)
{
if (par->family == NFPROTO_IPV4)
return nat64_tg4(skb, par);
else if (par->family == NFPROTO_IPV6)
return nat64_tg6(skb, par);
else
return NF_ACCEPT;
}
static netdev_tx_t nat64_netdev_xmit(struct sk_buff *skb, struct net_device *dev)
{
switch(ntohs(skb->protocol)) {
case ETH_P_IP:
nat64_tg4(skb);
break;
case ETH_P_IPV6:
nat64_tg6(skb);
break;
}
kfree_skb(skb);
return NETDEV_TX_OK;
}
