mpls: Per-device MPLS state
Add per-device MPLS state to supported interfaces. Use the presence of
this state in mpls_route_add to determine that this is a supported
interface.
Use the presence of mpls_dev to drop packets that arrived on an
unsupported interface - previously they were allowed through.
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Robert Shearman <rshearma@brocade.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mpls/internal.h b/net/mpls/internal.h
index fb6de920..8090cb3 100644
--- a/net/mpls/internal.h
+++ b/net/mpls/internal.h
@@ -22,6 +22,9 @@
u8 bos;
};
+struct mpls_dev {
+};
+
struct sk_buff;
static inline struct mpls_shim_hdr *mpls_hdr(const struct sk_buff *skb)