| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (c) 2014 Nicira, Inc. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [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 | |
| 14 | struct mpls_shim_hdr { |
| 15 | __be32 label_stack_entry; |
| 16 | }; |
| 17 | |
| 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 | |
| 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 | } |
| 28 | #endif |