Commit | Line | Data |
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fa20e0e3 JB |
1 | #ifndef __NET_TUN_PROTO_H |
2 | #define __NET_TUN_PROTO_H | |
3 | ||
949d6b40 JK |
4 | #include <linux/if_ether.h> |
5 | #include <linux/types.h> | |
fa20e0e3 JB |
6 | |
7 | /* One byte protocol values as defined by VXLAN-GPE and NSH. These will | |
8 | * hopefully get a shared IANA registry. | |
9 | */ | |
10 | #define TUN_P_IPV4 0x01 | |
11 | #define TUN_P_IPV6 0x02 | |
12 | #define TUN_P_ETHERNET 0x03 | |
13 | #define TUN_P_NSH 0x04 | |
14 | #define TUN_P_MPLS_UC 0x05 | |
15 | ||
16 | static inline __be16 tun_p_to_eth_p(u8 proto) | |
17 | { | |
18 | switch (proto) { | |
19 | case TUN_P_IPV4: | |
20 | return htons(ETH_P_IP); | |
21 | case TUN_P_IPV6: | |
22 | return htons(ETH_P_IPV6); | |
23 | case TUN_P_ETHERNET: | |
24 | return htons(ETH_P_TEB); | |
25 | case TUN_P_NSH: | |
26 | return htons(ETH_P_NSH); | |
27 | case TUN_P_MPLS_UC: | |
28 | return htons(ETH_P_MPLS_UC); | |
29 | } | |
30 | return 0; | |
31 | } | |
32 | ||
33 | static inline u8 tun_p_from_eth_p(__be16 proto) | |
34 | { | |
35 | switch (proto) { | |
36 | case htons(ETH_P_IP): | |
37 | return TUN_P_IPV4; | |
38 | case htons(ETH_P_IPV6): | |
39 | return TUN_P_IPV6; | |
40 | case htons(ETH_P_TEB): | |
41 | return TUN_P_ETHERNET; | |
42 | case htons(ETH_P_NSH): | |
43 | return TUN_P_NSH; | |
44 | case htons(ETH_P_MPLS_UC): | |
45 | return TUN_P_MPLS_UC; | |
46 | } | |
47 | return 0; | |
48 | } | |
49 | ||
50 | #endif |