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 */ 29 struct hdr_ui { 30 __u8 dsap; 31 __u8 ssap; 32 __u8 ctrl; 33 __u8 orig[3]; 34 __be16 type; 35 }; 36 37 struct hdr_ni { 38 __u8 dsap; 39 __u8 ssap; 40 __be16 ctrl; 41 __u8 orig[3]; 42 __be16 type; 43 }; 44 45 struct 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 56 struct 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
