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 18 struct 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 25 struct 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 32 static 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 44 static 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 56 static 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 ¶ms->tcft_enc_metadata->u.tun_info; 63 #else 64 return NULL; 65 #endif 66 } 67 #endif /* __NET_TC_TUNNEL_KEY_H */ 68