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#include <linux/config.h>
#include <linux/init.h>
#ifdef CONFIG_NETFILTER
#include <linux/kernel.h>
#include <linux/ipv6.h>
#include <net/dst.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
int ip6_route_me_harder(struct sk_buff *skb)
{
struct ipv6hdr *iph = skb->nh.ipv6h;
struct dst_entry *dst;
struct flowi fl = {
.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
.nl_u =
{ .ip6_u =
{ .daddr = iph->daddr,
.saddr = iph->saddr, } },
.proto = iph->nexthdr,
};
dst = ip6_route_output(skb->sk, &fl);
if (dst->error) {
IP6_INC_STATS(IPSTATS_MIB_OUTNOROUTES);
LIMIT_NETDEBUG(
printk(KERN_DEBUG "ip6_route_me_harder: No more route.\n"));
dst_release(dst);
return -EINVAL;
}
/* Drop old route. */
dst_release(skb->dst);
skb->dst = dst;
return 0;
}
EXPORT_SYMBOL(ip6_route_me_harder);
#endif /* CONFIG_NETFILTER */
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