1#ifndef _IP6T_AH_H 2#define _IP6T_AH_H 3 4struct ip6t_ah 5{ 6 u_int32_t spis[2]; /* Security Parameter Index */ 7 u_int32_t hdrlen; /* Header Length */ 8 u_int8_t hdrres; /* Test of the Reserved Filed */ 9 u_int8_t invflags; /* Inverse flags */ 10}; 11 12#define IP6T_AH_SPI 0x01 13#define IP6T_AH_LEN 0x02 14#define IP6T_AH_RES 0x04 15 16/* Values for "invflags" field in struct ip6t_ah. */ 17#define IP6T_AH_INV_SPI 0x01 /* Invert the sense of spi. */ 18#define IP6T_AH_INV_LEN 0x02 /* Invert the sense of length. */ 19#define IP6T_AH_INV_MASK 0x03 /* All possible flags. */ 20 21#endif /*_IP6T_AH_H*/ 22