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 */
8 struct 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 */
25 struct 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