1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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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 |