LXR linux/include/net/tc_act/tc_tunnel

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright (c) 2016, Amir Vadai <amir@vadai.me>
   4 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
   5 */
   6
   7#ifndef __NET_TC_TUNNEL_KEY_H
   8#define __NET_TC_TUNNEL_KEY_H
   9
  10#include <net/act_api.h>
  11#include <linux/tc_act/tc_tunnel_key.h>
  12#include <net/dst_metadata.h>
  13
  14struct tcf_tunnel_key_params {
  15        struct rcu_head         rcu;
  16        int                     tcft_action;
  17        struct metadata_dst     *tcft_enc_metadata;
  18};
  19
  20struct tcf_tunnel_key {
  21        struct tc_action              common;
  22        struct tcf_tunnel_key_params __rcu *params;
  23};
  24
  25#define to_tunnel_key(a) ((struct tcf_tunnel_key *)a)
  26
  27static inline bool is_tcf_tunnel_set(const struct tc_action *a)
  28{
  29#ifdef CONFIG_NET_CLS_ACT
  30        struct tcf_tunnel_key *t = to_tunnel_key(a);
  31        struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
  32
  33        if (a->ops && a->ops->id == TCA_ID_TUNNEL_KEY)
  34                return params->tcft_action == TCA_TUNNEL_KEY_ACT_SET;
  35#endif
  36        return false;
  37}
  38
  39static inline bool is_tcf_tunnel_release(const struct tc_action *a)
  40{
  41#ifdef CONFIG_NET_CLS_ACT
  42        struct tcf_tunnel_key *t = to_tunnel_key(a);
  43        struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
  44
  45        if (a->ops && a->ops->id == TCA_ID_TUNNEL_KEY)
  46                return params->tcft_action == TCA_TUNNEL_KEY_ACT_RELEASE;
  47#endif
  48        return false;
  49}
  50
  51static inline struct ip_tunnel_info *tcf_tunnel_info(const struct tc_action *a)
  52{
  53#ifdef CONFIG_NET_CLS_ACT
  54        struct tcf_tunnel_key *t = to_tunnel_key(a);
  55        struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);
  56
  57        return &params->tcft_enc_metadata->u.tun_info;
  58#else
  59        return NULL;
  60#endif
  61}
  62#endif /* __NET_TC_TUNNEL_KEY_H */
  63