--- /dev/null
+#ifndef __NETNS_CORE_H__
+#define __NETNS_CORE_H__
+
+struct ctl_table_header;
+struct prot_inuse;
+
+struct netns_core {
+ /* core sysctls */
+ struct ctl_table_header *sysctl_hdr;
+
+ int sysctl_somaxconn;
+
+ struct prot_inuse __percpu *inuse;
+};
+
+#endif