projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fa20e0e3 JB |
1 | #ifndef __NET_TUN_PROTO_H |
| 2 | #define __NET_TUN_PROTO_H | |
| 3 | ||
| 4 | #include <linux/kernel.h> | |
| 5 | ||
| 6 | /* One byte protocol values as defined by VXLAN-GPE and NSH. These will | |
| 7 | * hopefully get a shared IANA registry. | |
| 8 | */ | |
| 9 | #define TUN_P_IPV4 0x01 | |
| 10 | #define TUN_P_IPV6 0x02 | |
| 11 | #define TUN_P_ETHERNET 0x03 | |
| 12 | #define TUN_P_NSH 0x04 | |
| 13 | #define TUN_P_MPLS_UC 0x05 | |
| 14 | ||
| 15 | static inline __be16 tun_p_to_eth_p(u8 proto) | |
| 16 | { | |
| 17 | switch (proto) { | |
| 18 | case TUN_P_IPV4: | |
| 19 | return htons(ETH_P_IP); | |
| 20 | case TUN_P_IPV6: | |
| 21 | return htons(ETH_P_IPV6); | |
| 22 | case TUN_P_ETHERNET: | |
| 23 | return htons(ETH_P_TEB); | |
| 24 | case TUN_P_NSH: | |
| 25 | return htons(ETH_P_NSH); | |
| 26 | case TUN_P_MPLS_UC: | |
| 27 | return htons(ETH_P_MPLS_UC); | |
| 28 | } | |
| 29 | return 0; | |
| 30 | } | |
| 31 | ||
| 32 | static inline u8 tun_p_from_eth_p(__be16 proto) | |
| 33 | { | |
| 34 | switch (proto) { | |
| 35 | case htons(ETH_P_IP): | |
| 36 | return TUN_P_IPV4; | |
| 37 | case htons(ETH_P_IPV6): | |
| 38 | return TUN_P_IPV6; | |
| 39 | case htons(ETH_P_TEB): | |
| 40 | return TUN_P_ETHERNET; | |
| 41 | case htons(ETH_P_NSH): | |
| 42 | return TUN_P_NSH; | |
| 43 | case htons(ETH_P_MPLS_UC): | |
| 44 | return TUN_P_MPLS_UC; | |
| 45 | } | |
| 46 | return 0; | |
| 47 | } | |
| 48 | ||
| 49 | #endif |