eth_type_trans(9)
NAME
eth_type_trans - determine the packet's protocol ID.
SYNOPSIS
__be16 eth_type_trans(struct sk_buff * skb, struct net_device * dev);
ARGUMENTS
- skb
- received socket data
- dev
- receiving network device
DESCRIPTION
The rule here is that we assume 802.3 if the type field is short enough
to be a length. This is normal practice and works for any Žnow in useŽ
protocol.