1/*
 2 * Copyright (c) 2016, Amir Vadai <amir@vadai.me>
 3 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
 4 *
 5 * This program is free software; you can redistribute it and/or modify
 6 * it under the terms of the GNU General Public License as published by
 7 * the Free Software Foundation; either version 2 of the License, or
 8 * (at your option) any later version.
 9 */
10
11#ifndef __NET_TC_TUNNEL_KEY_H
12#define __NET_TC_TUNNEL_KEY_H
13
14#include <net/act_api.h>
15#include <linux/tc_act/tc_tunnel_key.h>
16#include <net/dst_metadata.h>
17
18struct tcf_tunnel_key_params {
19	struct rcu_head		rcu;
20	int			tcft_action;
21	int			action;
22	struct metadata_dst     *tcft_enc_metadata;
23};
24
25struct tcf_tunnel_key {
26	struct tc_action	      common;
27	struct tcf_tunnel_key_params __rcu *params;
28};
29
30#define to_tunnel_key(a) ((struct tcf_tunnel_key *)a)
31
32static inline bool is_tcf_tunnel_set(const struct tc_action *a)
33{
34#ifdef CONFIG_NET_CLS_ACT
35	struct tcf_tunnel_key *t = to_tunnel_key(a);
36	struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
37
38	if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY)
39		return params->tcft_action == TCA_TUNNEL_KEY_ACT_SET;
40#endif
41	return false;
42}
43
44static inline bool is_tcf_tunnel_release(const struct tc_action *a)
45{
46#ifdef CONFIG_NET_CLS_ACT
47	struct tcf_tunnel_key *t = to_tunnel_key(a);
48	struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
49
50	if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY)
51		return params->tcft_action == TCA_TUNNEL_KEY_ACT_RELEASE;
52#endif
53	return false;
54}
55
56static inline struct ip_tunnel_info *tcf_tunnel_info(const struct tc_action *a)
57{
58#ifdef CONFIG_NET_CLS_ACT
59	struct tcf_tunnel_key *t = to_tunnel_key(a);
60	struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
61
62	return &params->tcft_enc_metadata->u.tun_info;
63#else
64	return NULL;
65#endif
66}
67#endif /* __NET_TC_TUNNEL_KEY_H */