4 /* TCP matching stuff */
7 u_int16_t spts[2]; /* Source port range. */
8 u_int16_t dpts[2]; /* Destination port range. */
9 u_int8_t option; /* TCP Option iff non-zero*/
10 u_int8_t flg_mask; /* TCP flags mask byte */
11 u_int8_t flg_cmp; /* TCP flags compare byte */
12 u_int8_t invflags; /* Inverse flags */
15 /* Values for "inv" field in struct ipt_tcp. */
16 #define XT_TCP_INV_SRCPT 0x01 /* Invert the sense of source ports. */
17 #define XT_TCP_INV_DSTPT 0x02 /* Invert the sense of dest ports. */
18 #define XT_TCP_INV_FLAGS 0x04 /* Invert the sense of TCP flags. */
19 #define XT_TCP_INV_OPTION 0x08 /* Invert the sense of option test. */
20 #define XT_TCP_INV_MASK 0x0F /* All possible flags. */
22 /* UDP matching stuff */
25 u_int16_t spts[2]; /* Source port range. */
26 u_int16_t dpts[2]; /* Destination port range. */
27 u_int8_t invflags; /* Inverse flags */
30 /* Values for "invflags" field in struct ipt_udp. */
31 #define XT_UDP_INV_SRCPT 0x01 /* Invert the sense of source ports. */
32 #define XT_UDP_INV_DSTPT 0x02 /* Invert the sense of dest ports. */
33 #define XT_UDP_INV_MASK 0x03 /* All possible flags. */