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 struct metadata_dst *tcft_enc_metadata; 22 }; 23 24 struct tcf_tunnel_key { 25 struct tc_action common; 26 struct tcf_tunnel_key_params __rcu *params; 27 }; 28 29 #define to_tunnel_key(a) ((struct tcf_tunnel_key *)a) 30 31 static inline bool is_tcf_tunnel_set(const struct tc_action *a) 32 { 33 #ifdef CONFIG_NET_CLS_ACT 34 struct tcf_tunnel_key *t = to_tunnel_key(a); 35 struct tcf_tunnel_key_params *params = rtnl_dereference(t->params); 36 37 if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY) 38 return params->tcft_action == TCA_TUNNEL_KEY_ACT_SET; 39 #endif 40 return false; 41 } 42 43 static inline bool is_tcf_tunnel_release(const struct tc_action *a) 44 { 45 #ifdef CONFIG_NET_CLS_ACT 46 struct tcf_tunnel_key *t = to_tunnel_key(a); 47 struct tcf_tunnel_key_params *params = rtnl_dereference(t->params); 48 49 if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY) 50 return params->tcft_action == TCA_TUNNEL_KEY_ACT_RELEASE; 51 #endif 52 return false; 53 } 54 55 static inline struct ip_tunnel_info *tcf_tunnel_info(const struct tc_action *a) 56 { 57 #ifdef CONFIG_NET_CLS_ACT 58 struct tcf_tunnel_key *t = to_tunnel_key(a); 59 struct tcf_tunnel_key_params *params = rtnl_dereference(t->params); 60 61 return ¶ms->tcft_enc_metadata->u.tun_info; 62 #else 63 return NULL; 64 #endif 65 } 66 #endif /* __NET_TC_TUNNEL_KEY_H */ 67