eth_type_trans (9) Linux Manual Page

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.

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