#ifndef __NET_TUN_PROTO_H
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#define __NET_TUN_PROTO_H
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#include <linux/kernel.h>
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/* One byte protocol values as defined by VXLAN-GPE and NSH. These will
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* hopefully get a shared IANA registry.
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*/
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#define TUN_P_IPV4 0x01
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#define TUN_P_IPV6 0x02
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#define TUN_P_ETHERNET 0x03
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#define TUN_P_NSH 0x04
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#define TUN_P_MPLS_UC 0x05
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static inline __be16 tun_p_to_eth_p(u8 proto)
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{
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switch (proto) {
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case TUN_P_IPV4:
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return htons(ETH_P_IP);
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case TUN_P_IPV6:
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return htons(ETH_P_IPV6);
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case TUN_P_ETHERNET:
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return htons(ETH_P_TEB);
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case TUN_P_NSH:
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return htons(ETH_P_NSH);
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case TUN_P_MPLS_UC:
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return htons(ETH_P_MPLS_UC);
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}
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return 0;
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}
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static inline u8 tun_p_from_eth_p(__be16 proto)
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{
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switch (proto) {
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case htons(ETH_P_IP):
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return TUN_P_IPV4;
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case htons(ETH_P_IPV6):
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return TUN_P_IPV6;
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case htons(ETH_P_TEB):
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return TUN_P_ETHERNET;
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case htons(ETH_P_NSH):
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return TUN_P_NSH;
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case htons(ETH_P_MPLS_UC):
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return TUN_P_MPLS_UC;
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}
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return 0;
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}
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#endif
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