42 static inline __always_inline int nat64(struct __sk_buff* skb, bool is_ethernet) {  in nat64()  argument
44     void* data = (void*)(long)skb->data;  in nat64()
45     const void* data_end = (void*)(long)skb->data_end;  in nat64()
50     if (is_ethernet && (skb->pkt_type != PACKET_HOST)) return TC_ACT_OK;  in nat64()
53     if (skb->protocol != htons(ETH_P_IPV6)) return TC_ACT_OK;  in nat64()
79             .iif = skb->ifindex,  in nat64()
135     if (bpf_skb_change_proto(skb, htons(ETH_P_IP), 0)) return TC_ACT_OK;  in nat64()
152     bpf_csum_update(skb, sum6);  in nat64()
155     data = (void*)(long)skb->data;  in nat64()
156     data_end = (void*)(long)skb->data_end;  in nat64()
183 (struct __sk_buff* skb) {
184     return nat64(skb, true);
188 (struct __sk_buff* skb) {
189     return nat64(skb, false);
195 (struct __sk_buff* skb) {
200 (struct __sk_buff* skb) {
201     void* data = (void*)(long)skb->data;
202     const void* data_end = (void*)(long)skb->data_end;
206     if (skb->protocol != htons(ETH_P_IP)) return TC_ACT_OK;
255             .iif = skb->ifindex,
293     if (bpf_skb_change_proto(skb, htons(ETH_P_IPV6), 0)) return TC_ACT_OK;
304     bpf_csum_update(skb, sum6);
307     data = (void*)(long)skb->data;
308     data_end = (void*)(long)skb->data_end;