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