1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2#ifndef _XT_TCPUDP_H
3#define _XT_TCPUDP_H
4
5#include <linux/types.h>
6
7/* TCP matching stuff */
8struct xt_tcp {
9 __u16 spts[2]; /* Source port range. */
10 __u16 dpts[2]; /* Destination port range. */
11 __u8 option; /* TCP Option iff non-zero*/
12 __u8 flg_mask; /* TCP flags mask byte */
13 __u8 flg_cmp; /* TCP flags compare byte */
14 __u8 invflags; /* Inverse flags */
15};
16
17/* Values for "inv" field in struct ipt_tcp. */
18#define XT_TCP_INV_SRCPT 0x01 /* Invert the sense of source ports. */
19#define XT_TCP_INV_DSTPT 0x02 /* Invert the sense of dest ports. */
20#define XT_TCP_INV_FLAGS 0x04 /* Invert the sense of TCP flags. */
21#define XT_TCP_INV_OPTION 0x08 /* Invert the sense of option test. */
22#define XT_TCP_INV_MASK 0x0F /* All possible flags. */
23
24/* UDP matching stuff */
25struct xt_udp {
26 __u16 spts[2]; /* Source port range. */
27 __u16 dpts[2]; /* Destination port range. */
28 __u8 invflags; /* Inverse flags */
29};
30
31/* Values for "invflags" field in struct ipt_udp. */
32#define XT_UDP_INV_SRCPT 0x01 /* Invert the sense of source ports. */
33#define XT_UDP_INV_DSTPT 0x02 /* Invert the sense of dest ports. */
34#define XT_UDP_INV_MASK 0x03 /* All possible flags. */
35
36
37#endif
38