-unsigned int nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
- unsigned int dataoff, u_int8_t protocol)
-{
- struct ipv6hdr *ip6h = skb->nh.ipv6h;
- unsigned int csum = 0;
-
- switch (skb->ip_summed) {
- case CHECKSUM_HW:
- if (hook != NF_IP6_PRE_ROUTING && hook != NF_IP6_LOCAL_IN)
- break;
- if (!csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
- skb->len - dataoff, protocol,
- csum_sub(skb->csum,
- skb_checksum(skb, 0,
- dataoff, 0)))) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- break;
- }
- /* fall through */
- case CHECKSUM_NONE:
- skb->csum = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
- skb->len - dataoff,
- protocol,
- csum_sub(0,
- skb_checksum(skb, 0,
- dataoff, 0)));
- csum = __skb_checksum_complete(skb);
- }
- return csum;
-}
-
-EXPORT_SYMBOL(nf_ip6_checksum);
-
-static struct nf_afinfo nf_ip6_afinfo = {
- .family = AF_INET6,
- .checksum = nf_ip6_checksum,
- .saveroute = nf_ip6_saveroute,
- .reroute = nf_ip6_reroute,
- .route_key_size = sizeof(struct ip6_rt_info),