| /* | |
| * Copyright (c) 2014 Nicira, Inc. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of version 2 of the GNU General Public | |
| * License as published by the Free Software Foundation. | |
| * | |
| * This program is distributed in the hope that it will be useful, but | |
| * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * General Public License for more details. | |
| */ | |
| #ifndef _NET_MPLS_H | |
| #define _NET_MPLS_H 1 | |
| #include <linux/if_ether.h> | |
| #include <linux/netdevice.h> | |
| #define MPLS_HLEN 4 | |
| struct mpls_shim_hdr { | |
| __be32 label_stack_entry; | |
| }; | |
| static inline bool eth_p_mpls(__be16 eth_type) | |
| { | |
| return eth_type == htons(ETH_P_MPLS_UC) || | |
| eth_type == htons(ETH_P_MPLS_MC); | |
| } | |
| static inline struct mpls_shim_hdr *mpls_hdr(const struct sk_buff *skb) | |
| { | |
| return (struct mpls_shim_hdr *)skb_network_header(skb); | |
| } | |
| #endif |