1 files changed, 27 insertions, 13 deletions

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index ac912bb21747..d60ddcb0bfe2 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -91,29 +91,35 @@ struct sit_net {
  * Must be invoked with rcu_read_lock
  */
 static struct ip_tunnel *ipip6_tunnel_lookup(struct net *net,
-		struct net_device *dev, __be32 remote, __be32 local)
+					     struct net_device *dev,
+					     __be32 remote, __be32 local,
+					     int sifindex)
 {
 	unsigned int h0 = HASH(remote);
 	unsigned int h1 = HASH(local);
 	struct ip_tunnel *t;
 	struct sit_net *sitn = net_generic(net, sit_net_id);
+	int ifindex = dev ? dev->ifindex : 0;
 
 	for_each_ip_tunnel_rcu(t, sitn->tunnels_r_l[h0 ^ h1]) {
 		if (local == t->parms.iph.saddr &&
 		    remote == t->parms.iph.daddr &&
-		    (!dev || !t->parms.link || dev->ifindex == t->parms.link) &&
+		    (!dev || !t->parms.link || ifindex == t->parms.link ||
+		     sifindex == t->parms.link) &&
 		    (t->dev->flags & IFF_UP))
 			return t;
 	}
 	for_each_ip_tunnel_rcu(t, sitn->tunnels_r[h0]) {
 		if (remote == t->parms.iph.daddr &&
-		    (!dev || !t->parms.link || dev->ifindex == t->parms.link) &&
+		    (!dev || !t->parms.link || ifindex == t->parms.link ||
+		     sifindex == t->parms.link) &&
 		    (t->dev->flags & IFF_UP))
 			return t;
 	}
 	for_each_ip_tunnel_rcu(t, sitn->tunnels_l[h1]) {
 		if (local == t->parms.iph.saddr &&
-		    (!dev || !t->parms.link || dev->ifindex == t->parms.link) &&
+		    (!dev || !t->parms.link || ifindex == t->parms.link ||
+		     sifindex == t->parms.link) &&
 		    (t->dev->flags & IFF_UP))
 			return t;
 	}
@@ -486,6 +492,7 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 	const int code = icmp_hdr(skb)->code;
 	unsigned int data_len = 0;
 	struct ip_tunnel *t;
+	int sifindex;
 	int err;
 
 	switch (type) {
@@ -517,10 +524,9 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 
 	err = -ENOENT;
 
-	t = ipip6_tunnel_lookup(dev_net(skb->dev),
-				skb->dev,
-				iph->daddr,
-				iph->saddr);
+	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;
+	t = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
+				iph->daddr, iph->saddr, sifindex);
 	if (!t)
 		goto out;
 
@@ -633,10 +639,12 @@ static int ipip6_rcv(struct sk_buff *skb)
 {
 	const struct iphdr *iph = ip_hdr(skb);
 	struct ip_tunnel *tunnel;
+	int sifindex;
 	int err;
 
+	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;
 	tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
-				     iph->saddr, iph->daddr);
+				     iph->saddr, iph->daddr, sifindex);
 	if (tunnel) {
 		struct pcpu_sw_netstats *tstats;
 
@@ -704,10 +712,13 @@ static int sit_tunnel_rcv(struct sk_buff *skb, u8 ipproto)
 {
 	const struct iphdr *iph;
 	struct ip_tunnel *tunnel;
+	int sifindex;
+
+	sifindex = netif_is_l3_master(skb->dev) ? IPCB(skb)->iif : 0;
 
 	iph = ip_hdr(skb);
 	tunnel = ipip6_tunnel_lookup(dev_net(skb->dev), skb->dev,
-				     iph->saddr, iph->daddr);
+				     iph->saddr, iph->daddr, sifindex);
 	if (tunnel) {
 		const struct tnl_ptk_info *tpi;
 
@@ -1848,19 +1859,22 @@ err_alloc_dev:
 	return err;
 }
 
-static void __net_exit sit_exit_net(struct net *net)
+static void __net_exit sit_exit_batch_net(struct list_head *net_list)
 {
 	LIST_HEAD(list);
+	struct net *net;
 
 	rtnl_lock();
-	sit_destroy_tunnels(net, &list);
+	list_for_each_entry(net, net_list, exit_list)
+		sit_destroy_tunnels(net, &list);
+
 	unregister_netdevice_many(&list);
 	rtnl_unlock();
 }
 
 static struct pernet_operations sit_net_ops = {
 	.init = sit_init_net,
-	.exit = sit_exit_net,
+	.exit_batch = sit_exit_batch_net,
 	.id   = &sit_net_id,
 	.size = sizeof(struct sit_net),
 };