iproute2/include/linux/tc_act/tc_connmark.h

#ifndef __UAPI_TC_CONNMARK_H
#define __UAPI_TC_CONNMARK_H

#include <linux/types.h>
#include <linux/pkt_cls.h>

#define TCA_ACT_CONNMARK 14

struct tc_connmark {
	tc_gen;
	__u16 zone;
};

enum {
	TCA_CONNMARK_UNSPEC,
	TCA_CONNMARK_PARMS,
	TCA_CONNMARK_TM,
	__TCA_CONNMARK_MAX
};
#define TCA_CONNMARK_MAX (__TCA_CONNMARK_MAX - 1)

#endif