| /* |
| * 802.1Q VLAN protocol definitions |
| * |
| * Copyright (C) 1999-2016, Broadcom Corporation |
| * |
| * Unless you and Broadcom execute a separate written software license |
| * agreement governing use of this software, this software is licensed to you |
| * under the terms of the GNU General Public License version 2 (the "GPL"), |
| * available at http://www.broadcom.com/licenses/GPLv2.php, with the |
| * following added to such license: |
| * |
| * As a special exception, the copyright holders of this software give you |
| * permission to link this software with independent modules, and to copy and |
| * distribute the resulting executable under terms of your choice, provided that |
| * you also meet, for each linked independent module, the terms and conditions of |
| * the license of that module. An independent module is a module which is not |
| * derived from this software. The special exception does not apply to any |
| * modifications of the software. |
| * |
| * Notwithstanding the above, under no circumstances may you combine this |
| * software in any way with any other Broadcom software provided under a license |
| * other than the GPL, without Broadcom's express prior written consent. |
| * |
| * |
| * <<Broadcom-WL-IPTag/Open:>> |
| * |
| * $Id: vlan.h 518342 2014-12-01 23:21:41Z $ |
| */ |
| |
| #ifndef _vlan_h_ |
| #define _vlan_h_ |
| |
| #ifndef _TYPEDEFS_H_ |
| #include <typedefs.h> |
| #endif |
| |
| /* This marks the start of a packed structure section. */ |
| #include <packed_section_start.h> |
| |
| #ifndef VLAN_VID_MASK |
| #define VLAN_VID_MASK 0xfff /* low 12 bits are vlan id */ |
| #endif |
| |
| #define VLAN_CFI_SHIFT 12 /* canonical format indicator bit */ |
| #define VLAN_PRI_SHIFT 13 /* user priority */ |
| |
| #define VLAN_PRI_MASK 7 /* 3 bits of priority */ |
| |
| #define VLAN_TPID_OFFSET 12 /* offset of tag protocol id field */ |
| #define VLAN_TCI_OFFSET 14 /* offset of tag ctrl info field */ |
| |
| #define VLAN_TAG_LEN 4 |
| #define VLAN_TAG_OFFSET (2 * ETHER_ADDR_LEN) /* offset in Ethernet II packet only */ |
| |
| #define VLAN_TPID 0x8100 /* VLAN ethertype/Tag Protocol ID */ |
| |
| struct vlan_header { |
| uint16 vlan_type; /* 0x8100 */ |
| uint16 vlan_tag; /* priority, cfi and vid */ |
| }; |
| |
| struct ethervlan_header { |
| uint8 ether_dhost[ETHER_ADDR_LEN]; |
| uint8 ether_shost[ETHER_ADDR_LEN]; |
| uint16 vlan_type; /* 0x8100 */ |
| uint16 vlan_tag; /* priority, cfi and vid */ |
| uint16 ether_type; |
| }; |
| |
| struct dot3_mac_llc_snapvlan_header { |
| uint8 ether_dhost[ETHER_ADDR_LEN]; /* dest mac */ |
| uint8 ether_shost[ETHER_ADDR_LEN]; /* src mac */ |
| uint16 length; /* frame length incl header */ |
| uint8 dsap; /* always 0xAA */ |
| uint8 ssap; /* always 0xAA */ |
| uint8 ctl; /* always 0x03 */ |
| uint8 oui[3]; /* RFC1042: 0x00 0x00 0x00 |
| * Bridge-Tunnel: 0x00 0x00 0xF8 |
| */ |
| uint16 vlan_type; /* 0x8100 */ |
| uint16 vlan_tag; /* priority, cfi and vid */ |
| uint16 ether_type; /* ethertype */ |
| }; |
| |
| #define ETHERVLAN_HDR_LEN (ETHER_HDR_LEN + VLAN_TAG_LEN) |
| |
| |
| /* This marks the end of a packed structure section. */ |
| #include <packed_section_end.h> |
| |
| #define ETHERVLAN_MOVE_HDR(d, s) \ |
| do { \ |
| struct ethervlan_header t; \ |
| t = *(struct ethervlan_header *)(s); \ |
| *(struct ethervlan_header *)(d) = t; \ |
| } while (0) |
| |
| #endif /* _vlan_h_ */ |
