projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 8ae4cebd | 1 | /* if_ether.h 4.4 83/03/15 */ |
| 66b2ba82 SL |
2 | |
| 3 | /* | |
| 4 | * Structure of a 10Mb/s Ethernet header. | |
| 5 | */ | |
| 3fa8d9bb SL |
6 | struct ether_header { |
| 7 | u_char ether_dhost[6]; | |
| 8 | u_char ether_shost[6]; | |
| 9 | u_short ether_type; | |
| 66b2ba82 SL |
10 | }; |
| 11 | ||
| b332a7f5 SL |
12 | #define ETHERPUP_PUPTYPE 0x0400 /* PUP protocol */ |
| 13 | #define ETHERPUP_IPTYPE 0x0800 /* IP protocol */ | |
| 8ae4cebd | 14 | #define ETHERPUP_ARPTYPE 0x0806 /* Addr. resolution protocol */ |
| 66b2ba82 SL |
15 | |
| 16 | /* | |
| 3fa8d9bb SL |
17 | * The ETHERPUP_NTRAILER packet types starting at ETHERPUP_TRAIL have |
| 18 | * (type-ETHERPUP_TRAIL)*512 bytes of data followed | |
| 66b2ba82 SL |
19 | * by a PUP type (as given above) and then the (variable-length) header. |
| 20 | */ | |
| b332a7f5 | 21 | #define ETHERPUP_TRAIL 0x1000 /* Trailer PUP */ |
| 3fa8d9bb SL |
22 | #define ETHERPUP_NTRAILER 16 |
| 23 | ||
| 24 | #define ETHERMTU 1500 | |
| 25 | #define ETHERMIN (60-14) | |
| 8ae4cebd SL |
26 | |
| 27 | u_char etherbroadcastaddr[6]; /* 6 bytes of 0xFF */ | |
| 28 | ||
| 29 | /* | |
| 30 | * Ethernet Address Resolution Protocol. | |
| 31 | * | |
| 32 | * See RFC 826 for protocol description. Structure below is adapted | |
| 33 | * to resolving internet addresses. Field names used correspond to | |
| 34 | * RFC 826. | |
| 35 | */ | |
| 36 | struct ether_arp { | |
| 37 | u_short arp_hrd; /* format of hardware address */ | |
| 38 | #define ARPHRD_ETHER 1 /* ethernet hardware address */ | |
| 39 | u_short arp_pro; /* format of proto. address (ETHERPUP_IPTYPE) */ | |
| 40 | u_char arp_hln; /* length of hardware address (6) */ | |
| 41 | u_char arp_pln; /* length of protocol address (4) */ | |
| 42 | u_short arp_op; | |
| 43 | #define ARPOP_REQUEST 1 /* request to resolve address */ | |
| 44 | #define ARPOP_REPLY 2 /* response to previous request */ | |
| 45 | u_char arp_sha[6]; /* sender hardware address */ | |
| 46 | u_char arp_spa[4]; /* sender protocol address */ | |
| 47 | u_char arp_tha[6]; /* target hardware address */ | |
| 48 | u_char arp_tpa[4]; /* target protocol address */ | |
| 49 | }; | |
| 50 | ||
| 51 | #ifdef KERNEL | |
| 52 | /* | |
| 53 | * Structure shared between the ethernet driver modules and | |
| 54 | * the address resolution code. For example, each ec_softc or il_softc | |
| 55 | * begins with this structure. | |
| 56 | */ | |
| 57 | struct arpcom { | |
| 58 | struct ifnet ac_if; /* network-visible interface */ | |
| 59 | u_char ac_enaddr[6]; /* ethernet hardware address */ | |
| 60 | struct arpcom *ac_ac; /* link to next ether driver */ | |
| 61 | }; | |
| 62 | ||
| 63 | struct in_addr arpmyaddr(); | |
| 64 | struct arptab *arptnew(); | |
| 65 | #endif |