1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us> 4 */ 5 6 #ifndef __NET_TC_VLAN_H 7 #define __NET_TC_VLAN_H 8 9 #include <net/act_api.h> 10 #include <linux/tc_act/tc_vlan.h> 11 12 struct tcf_vlan_params { 13 int tcfv_action; 14 unsigned char tcfv_push_dst[ETH_ALEN]; 15 unsigned char tcfv_push_src[ETH_ALEN]; 16 u16 tcfv_push_vid; 17 __be16 tcfv_push_proto; 18 u8 tcfv_push_prio; 19 bool tcfv_push_prio_exists; 20 struct rcu_head rcu; 21 }; 22 23 struct tcf_vlan { 24 struct tc_action common; 25 struct tcf_vlan_params __rcu *vlan_p; 26 }; 27 #define to_vlan(a) ((struct tcf_vlan *)a) 28 29 static inline bool is_tcf_vlan(const struct tc_action *a) 30 { 31 #ifdef CONFIG_NET_CLS_ACT 32 if (a->ops && a->ops->id == TCA_ID_VLAN) 33 return true; 34 #endif 35 return false; 36 } 37 38 static inline u32 tcf_vlan_action(const struct tc_action *a) 39 { 40 u32 tcfv_action; 41 42 rcu_read_lock(); 43 tcfv_action = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_action; 44 rcu_read_unlock(); 45 46 return tcfv_action; 47 } 48 49 static inline u16 tcf_vlan_push_vid(const struct tc_action *a) 50 { 51 u16 tcfv_push_vid; 52 53 rcu_read_lock(); 54 tcfv_push_vid = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_vid; 55 rcu_read_unlock(); 56 57 return tcfv_push_vid; 58 } 59 60 static inline __be16 tcf_vlan_push_proto(const struct tc_action *a) 61 { 62 __be16 tcfv_push_proto; 63 64 rcu_read_lock(); 65 tcfv_push_proto = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_proto; 66 rcu_read_unlock(); 67 68 return tcfv_push_proto; 69 } 70 71 static inline u8 tcf_vlan_push_prio(const struct tc_action *a) 72 { 73 u8 tcfv_push_prio; 74 75 rcu_read_lock(); 76 tcfv_push_prio = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_prio; 77 rcu_read_unlock(); 78 79 return tcfv_push_prio; 80 } 81 82 static inline void tcf_vlan_push_eth(unsigned char *src, unsigned char *dest, 83 const struct tc_action *a) 84 { 85 rcu_read_lock(); 86 memcpy(dest, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_dst, ETH_ALEN); 87 memcpy(src, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_src, ETH_ALEN); 88 rcu_read_unlock(); 89 } 90 91 #endif /* __NET_TC_VLAN_H */ 92