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