/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __LINUX_BRIDGE_EBT_802_3_H #define __LINUX_BRIDGE_EBT_802_3_H #include <linux/types.h> #include <linux/if_ether.h> #define EBT_802_3_SAP 0x01 #define EBT_802_3_TYPE 0x02 #define EBT_802_3_MATCH "802_3" /* * If frame has DSAP/SSAP value 0xaa you must check the SNAP type * to discover what kind of packet we're carrying. */ #define CHECK_TYPE 0xaa /* * Control field may be one or two bytes. If the first byte has * the value 0x03 then the entire length is one byte, otherwise it is two. * One byte controls are used in Unnumbered Information frames. * Two byte controls are used in Numbered Information frames. */ #define IS_UI 0x03 #define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3) /* ui has one byte ctrl, ni has two */ struct hdr_ui { __u8 dsap; __u8 ssap; __u8 ctrl; __u8 orig[3]; __be16 type; }; struct hdr_ni { __u8 dsap; __u8 ssap; __be16 ctrl; __u8 orig[3]; __be16 type; }; struct ebt_802_3_hdr { __u8 daddr[ETH_ALEN]; __u8 saddr[ETH_ALEN]; __be16 len; union { struct hdr_ui ui; struct hdr_ni ni; } llc; }; struct ebt_802_3_info { __u8 sap; __be16 type; __u8 bitmask; __u8 invflags; }; #endif /* __LINUX_BRIDGE_EBT_802_3_H */

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