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DPATES / IPTables-IPv4-0.98 / include / linux / netfilter_ipv4 / ipt_TCPMSS.h 
#ifndef _IPT_TCPMSS_H
#define _IPT_TCPMSS_H

struct ipt_tcpmss_info {
	u_int16_t mss;
};

#define IPT_TCPMSS_CLAMP_PMTU 0xffff

#endif /*_IPT_TCPMSS_H*/