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
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