| Thomas Gleixner | 5b497af | 2019-05-29 07:18:09 -0700 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Simon Horman | 25cd9ba | 2014-10-06 05:05:13 -0700 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2014 Nicira, Inc. |
| Simon Horman | 25cd9ba | 2014-10-06 05:05:13 -0700 | [diff] [blame] | 4 | */ |
| 5 | |
| 6 | #ifndef _NET_MPLS_H |
| 7 | #define _NET_MPLS_H 1 |
| 8 | |
| 9 | #include <linux/if_ether.h> |
| 10 | #include <linux/netdevice.h> |
| 11 | |
| 12 | #define MPLS_HLEN 4 |
| 13 | |
| Jiri Benc | 9095e10 | 2016-09-30 19:08:06 +0200 | [diff] [blame] | 14 | struct mpls_shim_hdr { |
| 15 | __be32 label_stack_entry; |
| 16 | }; |
| 17 | |
| Simon Horman | 25cd9ba | 2014-10-06 05:05:13 -0700 | [diff] [blame] | 18 | static inline bool eth_p_mpls(__be16 eth_type) |
| 19 | { |
| 20 | return eth_type == htons(ETH_P_MPLS_UC) || |
| 21 | eth_type == htons(ETH_P_MPLS_MC); |
| 22 | } |
| 23 | |
| Jiri Benc | 9095e10 | 2016-09-30 19:08:06 +0200 | [diff] [blame] | 24 | static inline struct mpls_shim_hdr *mpls_hdr(const struct sk_buff *skb) |
| 25 | { |
| 26 | return (struct mpls_shim_hdr *)skb_network_header(skb); |
| 27 | } |
| Simon Horman | 25cd9ba | 2014-10-06 05:05:13 -0700 | [diff] [blame] | 28 | #endif |