1 files changed, 31 insertions, 21 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 25661f9..026caef 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -188,11 +188,29 @@ static void ip6_dst_destroy(struct dst_entry *dst)
 {
 	struct rt6_info *rt = (struct rt6_info *)dst;
 	struct inet6_dev *idev = rt->rt6i_idev;
+	struct inet_peer *peer = rt->rt6i_peer;
 
 	if (idev != NULL) {
 		rt->rt6i_idev = NULL;
 		in6_dev_put(idev);
 	}
+	if (peer) {
+		BUG_ON(!(rt->rt6i_flags & RTF_CACHE));
+		rt->rt6i_peer = NULL;
+		inet_putpeer(peer);
+	}
+}
+
+void rt6_bind_peer(struct rt6_info *rt, int create)
+{
+	struct inet_peer *peer;
+
+	if (WARN_ON(!(rt->rt6i_flags & RTF_CACHE)))
+		return;
+
+	peer = inet_getpeer_v6(&rt->rt6i_dst.addr, create);
+	if (peer && cmpxchg(&rt->rt6i_peer, NULL, peer) != NULL)
+		inet_putpeer(peer);
 }
 
 static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
@@ -558,11 +576,7 @@ struct rt6_info *rt6_lookup(struct net *net, const struct in6_addr *daddr,
 {
 	struct flowi fl = {
 		.oif = oif,
-		.nl_u = {
-			.ip6_u = {
-				.daddr = *daddr,
-			},
-		},
+		.fl6_dst = *daddr,
 	};
 	struct dst_entry *dst;
 	int flags = strict ? RT6_LOOKUP_F_IFACE : 0;
@@ -778,13 +792,9 @@ void ip6_route_input(struct sk_buff *skb)
 	int flags = RT6_LOOKUP_F_HAS_SADDR;
 	struct flowi fl = {
 		.iif = skb->dev->ifindex,
-		.nl_u = {
-			.ip6_u = {
-				.daddr = iph->daddr,
-				.saddr = iph->saddr,
-				.flowlabel = (* (__be32 *) iph)&IPV6_FLOWINFO_MASK,
-			},
-		},
+		.fl6_dst = iph->daddr,
+		.fl6_src = iph->saddr,
+		.fl6_flowlabel = (* (__be32 *) iph)&IPV6_FLOWINFO_MASK,
 		.mark = skb->mark,
 		.proto = iph->nexthdr,
 	};
@@ -1463,12 +1473,8 @@ static struct rt6_info *ip6_route_redirect(struct in6_addr *dest,
 	struct ip6rd_flowi rdfl = {
 		.fl = {
 			.oif = dev->ifindex,
-			.nl_u = {
-				.ip6_u = {
-					.daddr = *dest,
-					.saddr = *src,
-				},
-			},
+			.fl6_dst = *dest,
+			.fl6_src = *src,
 		},
 	};
 
@@ -1945,8 +1951,12 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
 	struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops);
 	struct neighbour *neigh;
 
-	if (rt == NULL)
+	if (rt == NULL) {
+		if (net_ratelimit())
+			pr_warning("IPv6:  Maximum number of routes reached,"
+				   " consider increasing route/max_size.\n");
 		return ERR_PTR(-ENOMEM);
+	}
 
 	dev_hold(net->loopback_dev);
 	in6_dev_hold(idev);
@@ -2461,8 +2471,6 @@ static int ip6_route_dev_notify(struct notifier_block *this,
 
 #ifdef CONFIG_PROC_FS
 
-#define RT6_INFO_LEN (32 + 4 + 32 + 4 + 32 + 40 + 5 + 1)
-
 struct rt6_proc_arg
 {
 	char *buffer;
@@ -2741,6 +2749,7 @@ static void __net_exit ip6_route_net_exit(struct net *net)
 	kfree(net->ipv6.ip6_prohibit_entry);
 	kfree(net->ipv6.ip6_blk_hole_entry);
 #endif
+	dst_entries_destroy(&net->ipv6.ip6_dst_ops);
 }
 
 static struct pernet_operations ip6_route_net_ops = {
@@ -2832,5 +2841,6 @@ void ip6_route_cleanup(void)
 	xfrm6_fini();
 	fib6_gc_cleanup();
 	unregister_pernet_subsys(&ip6_route_net_ops);
+	dst_entries_destroy(&ip6_dst_blackhole_ops);
 	kmem_cache_destroy(ip6_dst_ops_template.kmem_cachep);
 }