[thirdparty/kernel/linux.git] / include / net / mpls.h

/* 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
Commit	Line	Data
5b497af4	1	/* SPDX-License-Identifier: GPL-2.0-only */
25cd9ba0 SH	2	/*
25cd9ba0 SH	3	* Copyright (c) 2014 Nicira, Inc.
25cd9ba0 SH	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
9095e10e JB	14	struct mpls_shim_hdr {
	15	__be32 label_stack_entry;
	16	};
	17
25cd9ba0 SH	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
9095e10e JB	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	}
25cd9ba0	28	#endif