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