drop.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * mac80211 drop reason list
 4 *
 5 * Copyright (C) 2023-2024 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_UNUSABLE(R)	\
15	/* 0x00 == ___RX_DROP_UNUSABLE */	\
16	R(RX_DROP_U_MIC_FAIL)			\
17	R(RX_DROP_U_REPLAY)			\
18	R(RX_DROP_U_BAD_MMIE)			\
19	R(RX_DROP_U_DUP)			\
20	R(RX_DROP_U_SPURIOUS)			\
21	R(RX_DROP_U_DECRYPT_FAIL)		\
22	R(RX_DROP_U_NO_KEY_ID)			\
23	R(RX_DROP_U_BAD_CIPHER)			\
24	R(RX_DROP_U_OOM)			\
25	R(RX_DROP_U_NONSEQ_PN)			\
26	R(RX_DROP_U_BAD_KEY_COLOR)		\
27	R(RX_DROP_U_BAD_4ADDR)			\
28	R(RX_DROP_U_BAD_AMSDU)			\
29	R(RX_DROP_U_BAD_AMSDU_CIPHER)		\
30	R(RX_DROP_U_INVALID_8023)		\
31	/* 0x10 */				\
32	R(RX_DROP_U_RUNT_ACTION)		\
33	R(RX_DROP_U_UNPROT_ACTION)		\
34	R(RX_DROP_U_UNPROT_DUAL)		\
35	R(RX_DROP_U_UNPROT_UCAST_MGMT)		\
36	R(RX_DROP_U_UNPROT_MCAST_MGMT)		\
37	R(RX_DROP_U_UNPROT_BEACON)		\
38	R(RX_DROP_U_UNPROT_UNICAST_PUB_ACTION)	\
39	R(RX_DROP_U_UNPROT_ROBUST_ACTION)	\
40	R(RX_DROP_U_ACTION_UNKNOWN_SRC)		\
41	R(RX_DROP_U_REJECTED_ACTION_RESPONSE)	\
42	R(RX_DROP_U_EXPECT_DEFRAG_PROT)		\
43	R(RX_DROP_U_WEP_DEC_FAIL)		\
44	R(RX_DROP_U_NO_IV)			\
45	R(RX_DROP_U_NO_ICV)			\
46	R(RX_DROP_U_AP_RX_GROUPCAST)		\
47	R(RX_DROP_U_SHORT_MMIC)			\
48	/* 0x20 */				\
49	R(RX_DROP_U_MMIC_FAIL)			\
50	R(RX_DROP_U_SHORT_TKIP)			\
51	R(RX_DROP_U_TKIP_FAIL)			\
52	R(RX_DROP_U_SHORT_CCMP)			\
53	R(RX_DROP_U_SHORT_CCMP_MIC)		\
54	R(RX_DROP_U_SHORT_GCMP)			\
55	R(RX_DROP_U_SHORT_GCMP_MIC)		\
56	R(RX_DROP_U_SHORT_CMAC)			\
57	R(RX_DROP_U_SHORT_CMAC256)		\
58	R(RX_DROP_U_SHORT_GMAC)			\
59	R(RX_DROP_U_UNEXPECTED_VLAN_4ADDR)	\
60	R(RX_DROP_U_UNEXPECTED_STA_4ADDR)	\
61	R(RX_DROP_U_UNEXPECTED_VLAN_MCAST)	\
62	R(RX_DROP_U_NOT_PORT_CONTROL)		\
63	R(RX_DROP_U_UNEXPECTED_4ADDR_FRAME)	\
64	R(RX_DROP_U_BAD_BCN_KEYIDX)		\
65	/* 0x30 */				\
66	R(RX_DROP_U_BAD_MGMT_KEYIDX)		\
67	R(RX_DROP_U_UNKNOWN_ACTION_REJECTED)	\
68/* this line for the trailing \ - add before this */
69
70/* having two enums allows for checking ieee80211_rx_result use with sparse */
71enum ___mac80211_drop_reason {
72/* if we get to the end of handlers with RX_CONTINUE this will be the reason */
73	___RX_CONTINUE	= SKB_CONSUMED,
74
75/* this never gets used as an argument to kfree_skb_reason() */
76	___RX_QUEUED	= SKB_NOT_DROPPED_YET,
77
78#define ENUM(x) ___ ## x,
79	___RX_DROP_UNUSABLE = SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE <<
80		SKB_DROP_REASON_SUBSYS_SHIFT,
81	MAC80211_DROP_REASONS_UNUSABLE(ENUM)
82#undef ENUM
83};
84
85enum mac80211_drop_reason {
86	RX_CONTINUE	= (__force ieee80211_rx_result)___RX_CONTINUE,
87	RX_QUEUED	= (__force ieee80211_rx_result)___RX_QUEUED,
88	RX_DROP		= (__force ieee80211_rx_result)___RX_DROP_UNUSABLE,
89#define DEF(x) x = (__force ieee80211_rx_result)___ ## x,
90	MAC80211_DROP_REASONS_UNUSABLE(DEF)
91#undef DEF
92};
93
94#define RX_RES_IS_UNUSABLE(result)	\
95	(((__force u32)(result) & SKB_DROP_REASON_SUBSYS_MASK) == ___RX_DROP_UNUSABLE)
96
97#endif /* MAC80211_DROP_H */