#define ARPHRD_IEEE80211_PRISM 802 /* IEEE 802.11 + Prism2 header */
#define ARPHRD_IEEE80211_RADIOTAP 803 /* IEEE 802.11 + radiotap header */
+#define ARPHRD_PHONET 820 /* PhoNet media type */
+#define ARPHRD_PHONET_PIPE 821 /* PhoNet pipe header */
+
#define ARPHRD_VOID 0xFFFF /* Void type, nothing is known */
#define ARPHRD_NONE 0xFFFE /* zero header length */
{
return (struct arphdr *)skb_network_header(skb);
}
+
+static inline int arp_hdr_len(struct net_device *dev)
+{
+ /* ARP header, plus 2 device addresses, plus 2 IP addresses. */
+ return sizeof(struct arphdr) + (dev->addr_len + sizeof(u32)) * 2;
+}
#endif
#endif /* _LINUX_IF_ARP_H */