netns xfrm: xfrm_route_forward() in netns

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/xfrm.h

@@ -1050,7 +1050,9 @@ extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family);
 
 static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 {
-	return	!init_net.xfrm.policy_count[XFRM_POLICY_OUT] ||
+	struct net *net = dev_net(skb->dev);
+
+	return	!net->xfrm.policy_count[XFRM_POLICY_OUT] ||
 		(skb->dst->flags & DST_NOXFRM) ||
 		__xfrm_route_forward(skb, family);
 }

net/xfrm/xfrm_policy.c

@@ -2044,6 +2044,7 @@ EXPORT_SYMBOL(__xfrm_policy_check);
 
 int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 {
+	struct net *net = dev_net(skb->dev);
 	struct flowi fl;
 
 	if (xfrm_decode_session(skb, &fl, family) < 0) {
@@ -2052,7 +2053,7 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 		return 0;
 	}
 
-	return xfrm_lookup(&init_net, &skb->dst, &fl, NULL, 0) == 0;
+	return xfrm_lookup(net, &skb->dst, &fl, NULL, 0) == 0;
 }
 EXPORT_SYMBOL(__xfrm_route_forward);