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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 423 | giacomo | 1 | #ifndef __LINUX_BRIDGE_EBT_802_3_H |
| 2 | #define __LINUX_BRIDGE_EBT_802_3_H |
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| 3 | |||
| 4 | #define EBT_802_3_SAP 0x01 |
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| 5 | #define EBT_802_3_TYPE 0x02 |
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| 6 | |||
| 7 | #define EBT_802_3_MATCH "802_3" |
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| 8 | |||
| 9 | /* |
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| 10 | * If frame has DSAP/SSAP value 0xaa you must check the SNAP type |
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| 11 | * to discover what kind of packet we're carrying. |
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| 12 | */ |
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| 13 | #define CHECK_TYPE 0xaa |
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| 14 | |||
| 15 | /* |
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| 16 | * Control field may be one or two bytes. If the first byte has |
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| 17 | * the value 0x03 then the entire length is one byte, otherwise it is two. |
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| 18 | * One byte controls are used in Unnumbered Information frames. |
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| 19 | * Two byte controls are used in Numbered Information frames. |
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| 20 | */ |
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| 21 | #define IS_UI 0x03 |
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| 22 | |||
| 23 | #define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3) |
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| 24 | |||
| 25 | /* ui has one byte ctrl, ni has two */ |
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| 26 | struct hdr_ui { |
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| 27 | uint8_t dsap; |
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| 28 | uint8_t ssap; |
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| 29 | uint8_t ctrl; |
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| 30 | uint8_t orig[3]; |
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| 31 | uint16_t type; |
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| 32 | }; |
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| 33 | |||
| 34 | struct hdr_ni { |
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| 35 | uint8_t dsap; |
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| 36 | uint8_t ssap; |
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| 37 | uint16_t ctrl; |
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| 38 | uint8_t orig[3]; |
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| 39 | uint16_t type; |
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| 40 | }; |
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| 41 | |||
| 42 | struct ebt_802_3_hdr { |
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| 43 | uint8_t daddr[6]; |
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| 44 | uint8_t saddr[6]; |
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| 45 | uint16_t len; |
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| 46 | union { |
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| 47 | struct hdr_ui ui; |
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| 48 | struct hdr_ni ni; |
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| 49 | } llc; |
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| 50 | }; |
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| 51 | |||
| 52 | struct ebt_802_3_info |
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| 53 | { |
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| 54 | uint8_t sap; |
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| 55 | uint16_t type; |
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| 56 | uint8_t bitmask; |
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| 57 | uint8_t invflags; |
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| 58 | }; |
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| 59 | |||
| 60 | #endif |