arpt_mangle.h

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#ifndef _ARPT_MANGLE_H
#define _ARPT_MANGLE_H
#include <linux/netfilter_arp/arp_tables.h>

#define ARPT_MANGLE_ADDR_LEN_MAX sizeof(struct in_addr)
struct arpt_mangle
{
    char src_devaddr[ARPT_DEV_ADDR_LEN_MAX];
    char tgt_devaddr[ARPT_DEV_ADDR_LEN_MAX];
    union {
        struct in_addr src_ip;
    } u_s;
    union {
        struct in_addr tgt_ip;
    } u_t;
    u_int8_t flags;
    int target;
};

#define ARPT_MANGLE_SDEV 0x01
#define ARPT_MANGLE_TDEV 0x02
#define ARPT_MANGLE_SIP 0x04
#define ARPT_MANGLE_TIP 0x08
#define ARPT_MANGLE_MASK 0x0f

#endif /* _ARPT_MANGLE_H */