[net-next-2.6.git] / net / ipv6 / netfilter.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 */
Commit	Line	Data
020b4c12 HW	1	#include <linux/config.h>
	2	#include <linux/init.h>
	3
	4	#ifdef CONFIG_NETFILTER
	5
	6	#include <linux/kernel.h>
	7	#include <linux/ipv6.h>
	8	#include <net/dst.h>
	9	#include <net/ipv6.h>
	10	#include <net/ip6_route.h>
	11
	12	int ip6_route_me_harder(struct sk_buff *skb)
	13	{
	14	struct ipv6hdr *iph = skb->nh.ipv6h;
	15	struct dst_entry *dst;
	16	struct flowi fl = {
	17	.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0,
	18	.nl_u =
	19	{ .ip6_u =
	20	{ .daddr = iph->daddr,
	21	.saddr = iph->saddr, } },
	22	.proto = iph->nexthdr,
	23	};
	24
	25	dst = ip6_route_output(skb->sk, &fl);
	26
	27	if (dst->error) {
	28	IP6_INC_STATS(IPSTATS_MIB_OUTNOROUTES);
	29	LIMIT_NETDEBUG(
	30	printk(KERN_DEBUG "ip6_route_me_harder: No more route.\n"));
	31	dst_release(dst);
	32	return -EINVAL;
	33	}
	34
	35	/* Drop old route. */
	36	dst_release(skb->dst);
	37
	38	skb->dst = dst;
	39	return 0;
	40	}
	41	EXPORT_SYMBOL(ip6_route_me_harder);
	42
	43	#endif /* CONFIG_NETFILTER */