aboutsummaryrefslogtreecommitdiffstats
path: root/include/net/mpls.h
blob: ccaf238e8ea70d6c53a14d7a8385c4ab8b2fd777 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2014 Nicira, Inc.
 */

#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