| #ifndef __LINUX_BRIDGE_EBT_802_3_H |
| #define __LINUX_BRIDGE_EBT_802_3_H |
| |
| #include <linux/types.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[6]; |
| __u8 saddr[6]; |
| __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 |