/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _UAPI__LINUX_BRIDGE_EBT_802_3_H
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#define _UAPI__LINUX_BRIDGE_EBT_802_3_H
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#define EBT_802_3_SAP 0x01
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#define EBT_802_3_TYPE 0x02
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#define EBT_802_3_MATCH "802_3"
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/*
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* If frame has DSAP/SSAP value 0xaa you must check the SNAP type
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* to discover what kind of packet we're carrying.
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*/
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#define CHECK_TYPE 0xaa
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/*
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* Control field may be one or two bytes. If the first byte has
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* the value 0x03 then the entire length is one byte, otherwise it is two.
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* One byte controls are used in Unnumbered Information frames.
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* Two byte controls are used in Numbered Information frames.
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*/
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#define IS_UI 0x03
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#define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3)
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/* ui has one byte ctrl, ni has two */
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struct hdr_ui {
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__u8 dsap;
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__u8 ssap;
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__u8 ctrl;
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__u8 orig[3];
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__be16 type;
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};
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struct hdr_ni {
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__u8 dsap;
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__u8 ssap;
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__be16 ctrl;
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__u8 orig[3];
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__be16 type;
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};
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struct ebt_802_3_hdr {
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__u8 daddr[ETH_ALEN];
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__u8 saddr[ETH_ALEN];
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__be16 len;
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union {
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struct hdr_ui ui;
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struct hdr_ni ni;
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} llc;
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};
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struct ebt_802_3_info {
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__u8 sap;
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__be16 type;
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__u8 bitmask;
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__u8 invflags;
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};
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#endif /* _UAPI__LINUX_BRIDGE_EBT_802_3_H */
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