ip6t_ah.h

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#ifndef _IP6T_AH_H
#define _IP6T_AH_H

#include <linux/types.h>

struct ip6t_ah {
    __u32 spis[2];          /* Security Parameter Index */
    __u32 hdrlen;           /* Header Length */
    __u8  hdrres;           /* Test of the Reserved Filed */
    __u8  invflags;         /* Inverse flags */
};

#define IP6T_AH_SPI 0x01
#define IP6T_AH_LEN 0x02
#define IP6T_AH_RES 0x04

/* Values for "invflags" field in struct ip6t_ah. */
#define IP6T_AH_INV_SPI     0x01    /* Invert the sense of spi. */
#define IP6T_AH_INV_LEN     0x02    /* Invert the sense of length. */
#define IP6T_AH_INV_MASK    0x03    /* All possible flags. */

#endif /*_IP6T_AH_H*/