1. 根目录:
2. include
3. linux
4. netfilter
5. xt_cluster.h

#ifndef _XT_CLUSTER_MATCH_H
#define _XT_CLUSTER_MATCH_H

#include <linux/types.h>

enum xt_cluster_flags {
	XT_CLUSTER_F_INV	= (1 << 0)
};

struct xt_cluster_match_info {
	__u32 total_nodes;
	__u32 node_mask;
	__u32 hash_seed;
	__u32 flags;
};

#define XT_CLUSTER_NODES_MAX	32

#endif /* _XT_CLUSTER_MATCH_H */