1#ifndef _UAPI__LINUX_BRIDGE_EBT_802_3_H
2#define _UAPI__LINUX_BRIDGE_EBT_802_3_H
3
4#include <linux/types.h>
5#include <linux/if_ether.h>
6
7#define EBT_802_3_SAP 0x01
8#define EBT_802_3_TYPE 0x02
9
10#define EBT_802_3_MATCH "802_3"
11
12/*
13 * If frame has DSAP/SSAP value 0xaa you must check the SNAP type
14 * to discover what kind of packet we're carrying.
15 */
16#define CHECK_TYPE 0xaa
17
18/*
19 * Control field may be one or two bytes.  If the first byte has
20 * the value 0x03 then the entire length is one byte, otherwise it is two.
21 * One byte controls are used in Unnumbered Information frames.
22 * Two byte controls are used in Numbered Information frames.
23 */
24#define IS_UI 0x03
25
26#define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3)
27
28/* ui has one byte ctrl, ni has two */
29struct hdr_ui {
30	__u8 dsap;
31	__u8 ssap;
32	__u8 ctrl;
33	__u8 orig[3];
34	__be16 type;
35};
36
37struct hdr_ni {
38	__u8 dsap;
39	__u8 ssap;
40	__be16 ctrl;
41	__u8  orig[3];
42	__be16 type;
43};
44
45struct ebt_802_3_hdr {
46	__u8  daddr[ETH_ALEN];
47	__u8  saddr[ETH_ALEN];
48	__be16 len;
49	union {
50		struct hdr_ui ui;
51		struct hdr_ni ni;
52	} llc;
53};
54
55
56struct ebt_802_3_info {
57	__u8  sap;
58	__be16 type;
59	__u8  bitmask;
60	__u8  invflags;
61};
62
63#endif /* _UAPI__LINUX_BRIDGE_EBT_802_3_H */
64