#ifndef _IP6T_ESP_H #define _IP6T_ESP_H struct ip6t_esp { u_int32_t spis[2]; /* Security Parameter Index */ u_int8_t invflags; /* Inverse flags */ }; /* Values for "invflags" field in struct ip6t_esp. */ #define IP6T_ESP_INV_SPI 0x01 /* Invert the sense of spi. */ #define IP6T_ESP_INV_MASK 0x01 /* All possible flags. */ #endif /*_IP6T_ESP_H*/