net/mac80211/drop.h

   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
  12 typedef 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 */
  72 enum ___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
  90 enum 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 */