ref: 15d1425b276495a82621a8d075176a59a512cdf3
dir: /sys/src/cmd/ip/arp.h/
/* * this file used by (at least) the kernel, arpd, snoopy, tboot */ typedef struct Arppkt Arppkt; typedef struct Arpentry Arpentry; typedef struct Arpstats Arpstats; /* Format of ethernet arp request */ struct Arppkt { uchar d[6]; uchar s[6]; uchar type[2]; uchar hrd[2]; uchar pro[2]; uchar hln; uchar pln; uchar op[2]; uchar sha[6]; uchar spa[4]; uchar tha[6]; uchar tpa[4]; }; #define ARPSIZE 42 /* Format of request from starp to user level arpd */ struct Arpentry { uchar etaddr[6]; uchar ipaddr[4]; }; /* Arp cache statistics */ struct Arpstats { int hit; int miss; int failed; }; #define ET_ARP 0x0806 #define ET_RARP 0x8035 #define ARP_REQUEST 1 #define ARP_REPLY 2 #define RARP_REQUEST 3 #define RARP_REPLY 4