diff options
Diffstat (limited to 'sys/net/ethernet.h')
| -rw-r--r-- | sys/net/ethernet.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/sys/net/ethernet.h b/sys/net/ethernet.h index 78e23aa..42401cc 100644 --- a/sys/net/ethernet.h +++ b/sys/net/ethernet.h @@ -1,7 +1,7 @@ /* * Fundamental constants relating to ethernet. * - * $Id: ethernet.h,v 1.4 1996/12/19 15:42:52 wollman Exp $ + * $Id: ethernet.h,v 1.5 1996/12/19 18:12:06 bde Exp $ * */ @@ -60,6 +60,24 @@ struct ether_addr { u_char octet[ETHER_ADDR_LEN]; }; +#define ETHERTYPE_PUP 0x0200 /* PUP protocol */ +#define ETHERTYPE_IP 0x0800 /* IP protocol */ +#define ETHERTYPE_ARP 0x0806 /* Addr. resolution protocol */ +#define ETHERTYPE_REVARP 0x8035 /* reverse Addr. resolution protocol */ +#define ETHERTYPE_LOOPBACK 0x9000 /* used to test interfaces */ +/* XXX - add more useful types here */ + +/* + * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have + * (type-ETHERTYPE_TRAIL)*512 bytes of data followed + * by an ETHER type (as given above) and then the (variable-length) header. + */ +#define ETHERTYPE_TRAIL 0x1000 /* Trailer packet */ +#define ETHERTYPE_NTRAILER 16 + +#define ETHERMTU (ETHER_MAX_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN) +#define ETHERMIN (ETHER_MIN_LEN-ETHER_HDR_LEN-ETHER_CRC_LEN) + #ifndef KERNEL #include <sys/cdefs.h> |
