ETH_TYPE_TRANS(9) Network device support 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 ´now in use´
protocol.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 ETH_TYPE_TRANS(9)