#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 |