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

#ifndef _XT_TCPMSS_H
#define _XT_TCPMSS_H

#include <linux/types.h>

struct xt_tcpmss_info {
	__u16 mss;
};

#define XT_TCPMSS_CLAMP_PMTU 0xffff

#endif /* _XT_TCPMSS_H */