44 lines
858 B
C
44 lines
858 B
C
|
#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 */
|