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 
is_tcf_vlan(const struct tc_action * a)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 
tcf_vlan_action(const struct tc_action * a)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 
tcf_vlan_push_vid(const struct tc_action * a)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 
tcf_vlan_push_proto(const struct tc_action * a)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 
tcf_vlan_push_prio(const struct tc_action * a)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 #endif /* __NET_TC_VLAN_H */
82