1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * mac80211 drop reason list
4 *
5 * Copyright (C) 2023 Intel Corporation
6 */
7
8#ifndef MAC80211_DROP_H
9#define MAC80211_DROP_H
10#include <net/dropreason.h>
11
12typedef unsigned int __bitwise ieee80211_rx_result;
13
14#define MAC80211_DROP_REASONS_MONITOR(R)	\
15	R(RX_DROP_M_UNEXPECTED_4ADDR_FRAME)	\
16	R(RX_DROP_M_BAD_BCN_KEYIDX)		\
17	R(RX_DROP_M_BAD_MGMT_KEYIDX)		\
18/* this line for the trailing \ - add before this */
19
20#define MAC80211_DROP_REASONS_UNUSABLE(R)	\
21	/* 0x00 == ___RX_DROP_UNUSABLE */	\
22	R(RX_DROP_U_MIC_FAIL)			\
23	R(RX_DROP_U_REPLAY)			\
24	R(RX_DROP_U_BAD_MMIE)			\
25	R(RX_DROP_U_DUP)			\
26	R(RX_DROP_U_SPURIOUS)			\
27	R(RX_DROP_U_DECRYPT_FAIL)		\
28	R(RX_DROP_U_NO_KEY_ID)			\
29	R(RX_DROP_U_BAD_CIPHER)			\
30	R(RX_DROP_U_OOM)			\
31	R(RX_DROP_U_NONSEQ_PN)			\
32	R(RX_DROP_U_BAD_KEY_COLOR)		\
33	R(RX_DROP_U_BAD_4ADDR)			\
34	R(RX_DROP_U_BAD_AMSDU)			\
35	R(RX_DROP_U_BAD_AMSDU_CIPHER)		\
36	R(RX_DROP_U_INVALID_8023)		\
37	/* 0x10 */				\
38	R(RX_DROP_U_RUNT_ACTION)		\
39	R(RX_DROP_U_UNPROT_ACTION)		\
40	R(RX_DROP_U_UNPROT_DUAL)		\
41	R(RX_DROP_U_UNPROT_UCAST_MGMT)		\
42	R(RX_DROP_U_UNPROT_MCAST_MGMT)		\
43	R(RX_DROP_U_UNPROT_BEACON)		\
44	R(RX_DROP_U_UNPROT_UNICAST_PUB_ACTION)	\
45	R(RX_DROP_U_UNPROT_ROBUST_ACTION)	\
46	R(RX_DROP_U_ACTION_UNKNOWN_SRC)		\
47	R(RX_DROP_U_REJECTED_ACTION_RESPONSE)	\
48	R(RX_DROP_U_EXPECT_DEFRAG_PROT)		\
49	R(RX_DROP_U_WEP_DEC_FAIL)		\
50	R(RX_DROP_U_NO_IV)			\
51	R(RX_DROP_U_NO_ICV)			\
52	R(RX_DROP_U_AP_RX_GROUPCAST)		\
53	R(RX_DROP_U_SHORT_MMIC)			\
54	/* 0x20 */				\
55	R(RX_DROP_U_MMIC_FAIL)			\
56	R(RX_DROP_U_SHORT_TKIP)			\
57	R(RX_DROP_U_TKIP_FAIL)			\
58	R(RX_DROP_U_SHORT_CCMP)			\
59	R(RX_DROP_U_SHORT_CCMP_MIC)		\
60	R(RX_DROP_U_SHORT_GCMP)			\
61	R(RX_DROP_U_SHORT_GCMP_MIC)		\
62	R(RX_DROP_U_SHORT_CMAC)			\
63	R(RX_DROP_U_SHORT_CMAC256)		\
64	R(RX_DROP_U_SHORT_GMAC)			\
65	R(RX_DROP_U_UNEXPECTED_VLAN_4ADDR)	\
66	R(RX_DROP_U_UNEXPECTED_STA_4ADDR)	\
67	R(RX_DROP_U_UNEXPECTED_VLAN_MCAST)	\
68	R(RX_DROP_U_NOT_PORT_CONTROL)		\
69/* this line for the trailing \ - add before this */
70
71/* having two enums allows for checking ieee80211_rx_result use with sparse */
72enum ___mac80211_drop_reason {
73/* if we get to the end of handlers with RX_CONTINUE this will be the reason */
74	___RX_CONTINUE	= SKB_CONSUMED,
75
76/* this never gets used as an argument to kfree_skb_reason() */
77	___RX_QUEUED	= SKB_NOT_DROPPED_YET,
78
79#define ENUM(x) ___ ## x,
80	___RX_DROP_MONITOR = SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR <<
81		SKB_DROP_REASON_SUBSYS_SHIFT,
82	MAC80211_DROP_REASONS_MONITOR(ENUM)
83
84	___RX_DROP_UNUSABLE = SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE <<
85		SKB_DROP_REASON_SUBSYS_SHIFT,
86	MAC80211_DROP_REASONS_UNUSABLE(ENUM)
87#undef ENUM
88};
89
90enum mac80211_drop_reason {
91	RX_CONTINUE	 = (__force ieee80211_rx_result)___RX_CONTINUE,
92	RX_QUEUED	 = (__force ieee80211_rx_result)___RX_QUEUED,
93	RX_DROP_MONITOR	 = (__force ieee80211_rx_result)___RX_DROP_MONITOR,
94#define DEF(x) x = (__force ieee80211_rx_result)___ ## x,
95	MAC80211_DROP_REASONS_MONITOR(DEF)
96	MAC80211_DROP_REASONS_UNUSABLE(DEF)
97#undef DEF
98};
99
100#define RX_RES_IS_UNUSABLE(result)	\
101	(((__force u32)(result) & SKB_DROP_REASON_SUBSYS_MASK) == ___RX_DROP_UNUSABLE)
102
103#endif /* MAC80211_DROP_H */
104