1 files changed, 31 insertions, 0 deletions

diff --git a/include/net/timewait_sock.h b/include/net/timewait_sock.h
new file mode 100644
index 000000000000..2544281e1d5e
--- /dev/null
+++ b/include/net/timewait_sock.h
@@ -0,0 +1,31 @@
+/*
+ * NET          Generic infrastructure for Network protocols.
+ *
+ * Authors:     Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ *              This program is free software; you can redistribute it and/or
+ *              modify it under the terms of the GNU General Public License
+ *              as published by the Free Software Foundation; either version
+ *              2 of the License, or (at your option) any later version.
+ */
+#ifndef _TIMEWAIT_SOCK_H
+#define _TIMEWAIT_SOCK_H
+
+#include <linux/slab.h>
+#include <net/sock.h>
+
+struct timewait_sock_ops {
+        kmem_cache_t    *twsk_slab;
+        unsigned int    twsk_obj_size;
+        int             (*twsk_unique)(struct sock *sk,
+                                       struct sock *sktw, void *twp);
+};
+
+static inline int twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
+{
+        if (sk->sk_prot->twsk_prot->twsk_unique != NULL)
+                return sk->sk_prot->twsk_prot->twsk_unique(sk, sktw, twp);
+        return 0;
+}
+
+#endif /* _TIMEWAIT_SOCK_H */