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