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89 lines
2.7 KiB
89 lines
2.7 KiB
/* |
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* 802.1Q VLAN protocol definitions |
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* |
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* Copyright (C) 1999-2013, Broadcom Corporation |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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* |
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* $Id: vlan.h 382883 2013-02-04 23:26:09Z $ |
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*/ |
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#ifndef _vlan_h_ |
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#define _vlan_h_ |
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#ifndef _TYPEDEFS_H_ |
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#include <typedefs.h> |
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#endif |
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/* This marks the start of a packed structure section. */ |
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#include <packed_section_start.h> |
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#ifndef VLAN_VID_MASK |
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#define VLAN_VID_MASK 0xfff /* low 12 bits are vlan id */ |
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#endif |
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#define VLAN_CFI_SHIFT 12 /* canonical format indicator bit */ |
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#define VLAN_PRI_SHIFT 13 /* user priority */ |
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#define VLAN_PRI_MASK 7 /* 3 bits of priority */ |
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#define VLAN_TPID_OFFSET 12 /* offset of tag protocol id field */ |
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#define VLAN_TCI_OFFSET 14 /* offset of tag ctrl info field */ |
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#define VLAN_TAG_LEN 4 |
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#define VLAN_TAG_OFFSET (2 * ETHER_ADDR_LEN) /* offset in Ethernet II packet only */ |
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#define VLAN_TPID 0x8100 /* VLAN ethertype/Tag Protocol ID */ |
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struct vlan_header { |
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uint16 vlan_type; /* 0x8100 */ |
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uint16 vlan_tag; /* priority, cfi and vid */ |
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}; |
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struct ethervlan_header { |
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uint8 ether_dhost[ETHER_ADDR_LEN]; |
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uint8 ether_shost[ETHER_ADDR_LEN]; |
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uint16 vlan_type; /* 0x8100 */ |
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uint16 vlan_tag; /* priority, cfi and vid */ |
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uint16 ether_type; |
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}; |
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struct dot3_mac_llc_snapvlan_header { |
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uint8 ether_dhost[ETHER_ADDR_LEN]; /* dest mac */ |
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uint8 ether_shost[ETHER_ADDR_LEN]; /* src mac */ |
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uint16 length; /* frame length incl header */ |
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uint8 dsap; /* always 0xAA */ |
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uint8 ssap; /* always 0xAA */ |
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uint8 ctl; /* always 0x03 */ |
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uint8 oui[3]; /* RFC1042: 0x00 0x00 0x00 |
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* Bridge-Tunnel: 0x00 0x00 0xF8 |
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*/ |
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uint16 vlan_type; /* 0x8100 */ |
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uint16 vlan_tag; /* priority, cfi and vid */ |
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uint16 ether_type; /* ethertype */ |
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}; |
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#define ETHERVLAN_HDR_LEN (ETHER_HDR_LEN + VLAN_TAG_LEN) |
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/* This marks the end of a packed structure section. */ |
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#include <packed_section_end.h> |
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#define ETHERVLAN_MOVE_HDR(d, s) \ |
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do { \ |
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struct ethervlan_header t; \ |
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t = *(struct ethervlan_header *)(s); \ |
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*(struct ethervlan_header *)(d) = t; \ |
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} while (0) |
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#endif /* _vlan_h_ */
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