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. */