diff options
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/if_ether.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sys/netinet/if_ether.h b/sys/netinet/if_ether.h index fa991bd4d27..a8b6673c2d8 100644 --- a/sys/netinet/if_ether.h +++ b/sys/netinet/if_ether.h @@ -1,4 +1,4 @@ -/* $OpenBSD: if_ether.h,v 1.11 2000/02/10 05:49:28 jason Exp $ */ +/* $OpenBSD: if_ether.h,v 1.12 2000/03/07 18:15:47 chris Exp $ */ /* $NetBSD: if_ether.h,v 1.22 1996/05/11 13:00:00 mycroft Exp $ */ /* @@ -49,6 +49,21 @@ struct ether_addr { */ #define ETHER_ADDR_LEN 6 +/* + * The number of bytes in the type field. + */ +#define ETHER_TYPE_LEN 2 + +/* + * The number of bytes in the trailing CRC field. + */ +#define ETHER_CRC_LEN 4 + +/* + * The length of the combined header. + */ +#define ETHER_HDR_LEN (ETHER_ADDR_LEN*2+ETHER_TYPE_LEN) + struct ether_header { u_int8_t ether_dhost[ETHER_ADDR_LEN]; u_int8_t ether_shost[ETHER_ADDR_LEN]; @@ -59,9 +74,11 @@ struct ether_header { #define ETHERTYPE_IP 0x0800 /* IP protocol */ #define ETHERTYPE_ARP 0x0806 /* address resolution protocol */ #define ETHERTYPE_REVARP 0x8035 /* reverse addr resolution protocol */ +#define ETHERTYPE_8021Q 0x8100 /* IEEE 802.1Q VLAN tagging */ #define ETHERTYPE_IPV6 0x86DD /* IPv6 protocol */ #define ETHERTYPE_PPPOEDISC 0x8863 /* PPP Over Ethernet Discovery Stage */ #define ETHERTYPE_PPPOE 0x8864 /* PPP Over Ethernet Session Stage */ +#define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */ /* * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have |