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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * mac80211 drop reason list
4 *
5 * Copyright (C) 2023-2024, 2026 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 R(RX_DROP_U_MESH_DS_BITS) \
69 R(RX_DROP_U_MESH_A3_MISMATCH) \
70 R(RX_DROP_U_MESH_NO_A4) \
71 R(RX_DROP_U_MESH_A4_MISMATCH) \
72 R(RX_DROP_U_MESH_UNEXP_DATA) \
73 R(RX_DROP_U_MESH_WRONG_ACTION) \
74 R(RX_DROP_U_MESH_UNEXP_MGMT) \
75 R(RX_DROP_U_SPURIOUS_NOTIF) \
76 R(RX_DROP_U_RUNT_DATA) \
77 R(RX_DROP_U_KEY_TAINTED) \
78 R(RX_DROP_U_UNPROTECTED) \
79 R(RX_DROP_U_MCAST_FRAGMENT) \
80 R(RX_DROP_U_DEFRAG_MISMATCH) \
81 R(RX_DROP_U_RUNT_MESH_DATA) \
82 /* 0x40 */ \
83 R(RX_DROP_U_MESH_NO_TTL) \
84 R(RX_DROP_U_MESH_RMC) \
85 R(RX_DROP_U_MESH_BAD_AE) \
86 R(RX_DROP_U_MESH_TTL_EXPIRED) \
87 R(RX_DROP_U_MESH_NOT_FORWARDING) \
88 R(RX_DROP_U_AMSDU_WITHOUT_DATA) \
89 R(RX_DROP_U_NULL_DATA) \
90 R(RX_DROP_U_UNEXPECTED_4ADDR) \
91 R(RX_DROP_U_PORT_CONTROL) \
92 R(RX_DROP_U_UNKNOWN_STA) \
93 R(RX_DROP_U_RUNT_BAR) \
94 R(RX_DROP_U_BAR_OUTSIDE_SESSION) \
95 R(RX_DROP_U_CTRL_FRAME) \
96 R(RX_DROP_U_RUNT_MGMT) \
97 R(RX_DROP_U_EXPECTED_MGMT) \
98 R(RX_DROP_U_NONBCAST_BEACON) \
99 /* 0x50 */ \
100 R(RX_DROP_U_MALFORMED_ACTION) \
101 R(RX_DROP_U_UNKNOWN_MCAST_ACTION) \
102 R(RX_DROP_U_UNEXPECTED_EXT_FRAME) \
103 R(RX_DROP_U_UNHANDLED_MGMT) \
104 R(RX_DROP_U_MCAST_DEAUTH) \
105 R(RX_DROP_U_UNHANDLED_DEAUTH) \
106 R(RX_DROP_U_MCAST_DISASSOC) \
107 R(RX_DROP_U_UNHANDLED_DISASSOC) \
108 R(RX_DROP_U_UNHANDLED_PREQ) \
109 R(RX_DROP_U_UNHANDLED_MGMT_STYPE) \
110 R(RX_DROP_U_NO_LINK) \
111 R(RX_DROP_U_DEFRAG_OVERFLOW) \
112/* this line for the trailing \ - add before this */
113
114/* having two enums allows for checking ieee80211_rx_result use with sparse */
115enum ___mac80211_drop_reason {
116/* if we get to the end of handlers with RX_CONTINUE this will be the reason */
117 ___RX_CONTINUE = SKB_CONSUMED,
118
119/* this never gets used as an argument to kfree_skb_reason() */
120 ___RX_QUEUED = SKB_NOT_DROPPED_YET,
121
122#define ENUM(x) ___ ## x,
123 ___RX_DROP_UNUSABLE = SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE <<
124 SKB_DROP_REASON_SUBSYS_SHIFT,
125 MAC80211_DROP_REASONS_UNUSABLE(ENUM)
126#undef ENUM
127};
128
129enum mac80211_drop_reason {
130 RX_CONTINUE = (__force ieee80211_rx_result)___RX_CONTINUE,
131 RX_QUEUED = (__force ieee80211_rx_result)___RX_QUEUED,
132#define DEF(x) x = (__force ieee80211_rx_result)___ ## x,
133 MAC80211_DROP_REASONS_UNUSABLE(DEF)
134#undef DEF
135};
136
137#define RX_RES_IS_UNUSABLE(result) \
138 (((__force u32)(result) & SKB_DROP_REASON_SUBSYS_MASK) == ___RX_DROP_UNUSABLE)
139
140#endif /* MAC80211_DROP_H */