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authorHarald Welte <laforge@netfilter.org>2005-08-09 19:39:00 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2005-08-29 15:35:01 -0700
commit020b4c12dbe3868d792a01d7c1470cd837abe10f (patch)
tree4c5963a206f67eda6f8ff74ac33f7ed7e4acc164 /net/ipv6/netfilter.c
parent089af26c706d1473f641c909fee7c878d29c1f1a (diff)
[NETFILTER]: Move ipv4 specific code from net/core/netfilter.c to net/ipv4/netfilter.c
Netfilter cleanup - Move ipv4 code from net/core/netfilter.c to net/ipv4/netfilter.c - Move ipv6 netfilter code from net/ipv6/ip6_output.c to net/ipv6/netfilter.c Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/netfilter.c')
-rw-r--r--net/ipv6/netfilter.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/net/ipv6/netfilter.c b/net/ipv6/netfilter.c
new file mode 100644
index 000000000000..5656d0959aba
--- /dev/null
+++ b/net/ipv6/netfilter.c
@@ -0,0 +1,43 @@
+#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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