1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | |
3 | #ifndef _LINUX_DROPREASON_H |
4 | #define _LINUX_DROPREASON_H |
5 | #include <net/dropreason-core.h> |
6 | |
7 | /** |
8 | * enum skb_drop_reason_subsys - subsystem tag for (extended) drop reasons |
9 | */ |
10 | enum skb_drop_reason_subsys { |
11 | /** @SKB_DROP_REASON_SUBSYS_CORE: core drop reasons defined above */ |
12 | SKB_DROP_REASON_SUBSYS_CORE, |
13 | |
14 | /** |
15 | * @SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE: mac80211 drop reasons |
16 | * for unusable frames, see net/mac80211/drop.h |
17 | */ |
18 | SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE, |
19 | |
20 | /** |
21 | * @SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR: mac80211 drop reasons |
22 | * for frames still going to monitor, see net/mac80211/drop.h |
23 | */ |
24 | SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR, |
25 | |
26 | /** |
27 | * @SKB_DROP_REASON_SUBSYS_OPENVSWITCH: openvswitch drop reasons, |
28 | * see net/openvswitch/drop.h |
29 | */ |
30 | SKB_DROP_REASON_SUBSYS_OPENVSWITCH, |
31 | |
32 | /** @SKB_DROP_REASON_SUBSYS_NUM: number of subsystems defined */ |
33 | SKB_DROP_REASON_SUBSYS_NUM |
34 | }; |
35 | |
36 | struct drop_reason_list { |
37 | const char * const *reasons; |
38 | size_t n_reasons; |
39 | }; |
40 | |
41 | /* Note: due to dynamic registrations, access must be under RCU */ |
42 | extern const struct drop_reason_list __rcu * |
43 | drop_reasons_by_subsys[SKB_DROP_REASON_SUBSYS_NUM]; |
44 | |
45 | void drop_reasons_register_subsys(enum skb_drop_reason_subsys subsys, |
46 | const struct drop_reason_list *list); |
47 | void drop_reasons_unregister_subsys(enum skb_drop_reason_subsys subsys); |
48 | |
49 | #endif |
50 | |