2 * 802.1Q VLAN protocol definitions
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24 * $Id: vlan.h 241182 2011-02-17 21:50:03Z $
35 #include <packed_section_start.h>
37 #define VLAN_VID_MASK 0xfff
38 #define VLAN_CFI_SHIFT 12
39 #define VLAN_PRI_SHIFT 13
41 #define VLAN_PRI_MASK 7
43 #define VLAN_TAG_LEN 4
44 #define VLAN_TAG_OFFSET (2 * ETHER_ADDR_LEN)
46 #define VLAN_TPID 0x8100
48 struct ethervlan_header {
49 uint8 ether_dhost[ETHER_ADDR_LEN];
50 uint8 ether_shost[ETHER_ADDR_LEN];
56 #define ETHERVLAN_HDR_LEN (ETHER_HDR_LEN + VLAN_TAG_LEN)
60 #include <packed_section_end.h>
62 #define ETHERVLAN_MOVE_HDR(d, s) \
64 struct ethervlan_header t; \
65 t = *(struct ethervlan_header *)(s); \
66 *(struct ethervlan_header *)(d) = t; \