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 
tcf_vlan_action(const struct tc_action * a)29 static inline u32 tcf_vlan_action(const struct tc_action *a)
30 {
31 	u32 tcfv_action;
32 
33 	rcu_read_lock();
34 	tcfv_action = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_action;
35 	rcu_read_unlock();
36 
37 	return tcfv_action;
38 }
39 
tcf_vlan_push_vid(const struct tc_action * a)40 static inline u16 tcf_vlan_push_vid(const struct tc_action *a)
41 {
42 	u16 tcfv_push_vid;
43 
44 	rcu_read_lock();
45 	tcfv_push_vid = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_vid;
46 	rcu_read_unlock();
47 
48 	return tcfv_push_vid;
49 }
50 
tcf_vlan_push_proto(const struct tc_action * a)51 static inline __be16 tcf_vlan_push_proto(const struct tc_action *a)
52 {
53 	__be16 tcfv_push_proto;
54 
55 	rcu_read_lock();
56 	tcfv_push_proto = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_proto;
57 	rcu_read_unlock();
58 
59 	return tcfv_push_proto;
60 }
61 
tcf_vlan_push_prio(const struct tc_action * a)62 static inline u8 tcf_vlan_push_prio(const struct tc_action *a)
63 {
64 	u8 tcfv_push_prio;
65 
66 	rcu_read_lock();
67 	tcfv_push_prio = rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_prio;
68 	rcu_read_unlock();
69 
70 	return tcfv_push_prio;
71 }
72 
tcf_vlan_push_eth(unsigned char * src,unsigned char * dest,const struct tc_action * a)73 static inline void tcf_vlan_push_eth(unsigned char *src, unsigned char *dest,
74 				     const struct tc_action *a)
75 {
76 	rcu_read_lock();
77 	memcpy(dest, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_dst, ETH_ALEN);
78 	memcpy(src, rcu_dereference(to_vlan(a)->vlan_p)->tcfv_push_src, ETH_ALEN);
79 	rcu_read_unlock();
80 }
81 
82 #endif /* __NET_TC_VLAN_H */
83