diff --git a/include/net/raw.h b/include/net/raw.h
index 6c14a65..67cc643 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -19,6 +19,7 @@
 
 
 #include <net/protocol.h>
+#include <linux/icmp.h>
 
 extern struct proto raw_prot;
 
@@ -56,4 +57,15 @@
 void raw_hash_sk(struct sock *sk);
 void raw_unhash_sk(struct sock *sk);
 
+struct raw_sock {
+	/* inet_sock has to be the first member */
+	struct inet_sock   inet;
+	struct icmp_filter filter;
+};
+
+static inline struct raw_sock *raw_sk(const struct sock *sk)
+{
+	return (struct raw_sock *)sk;
+}
+
 #endif	/* _RAW_H */