1ENUM MAC80211_RX_FLA(9) The basic mac80211 driver inte ENUM MAC80211_RX_FLA(9)
2
6 enum_mac80211_rx_flags - receive flags
7
9 enum mac80211_rx_flags {
10 RX_FLAG_MMIC_ERROR,
11 RX_FLAG_DECRYPTED,
12 RX_FLAG_MACTIME_PLCP_START,
13 RX_FLAG_MMIC_STRIPPED,
14 RX_FLAG_IV_STRIPPED,
15 RX_FLAG_FAILED_FCS_CRC,
16 RX_FLAG_FAILED_PLCP_CRC,
17 RX_FLAG_MACTIME_START,
18 RX_FLAG_NO_SIGNAL_VAL,
19 RX_FLAG_AMPDU_DETAILS,
20 RX_FLAG_PN_VALIDATED,
21 RX_FLAG_DUP_VALIDATED,
22 RX_FLAG_AMPDU_LAST_KNOWN,
23 RX_FLAG_AMPDU_IS_LAST,
24 RX_FLAG_AMPDU_DELIM_CRC_ERROR,
25 RX_FLAG_AMPDU_DELIM_CRC_KNOWN,
26 RX_FLAG_MACTIME_END,
27 RX_FLAG_ONLY_MONITOR,
28 RX_FLAG_SKIP_MONITOR,
29 RX_FLAG_AMSDU_MORE,
30 RX_FLAG_RADIOTAP_VENDOR_DATA,
31 RX_FLAG_MIC_STRIPPED,
32 RX_FLAG_ALLOW_SAME_PN,
33 RX_FLAG_ICV_STRIPPED
34 };
35
37 RX_FLAG_MMIC_ERROR
38 Michael MIC error was reported on this frame. Use together with
39 RX_FLAG_MMIC_STRIPPED.
40 RX_FLAG_DECRYPTED
42 This frame was decrypted in hardware.
43 RX_FLAG_MACTIME_PLCP_START
45 The timestamp passed in the RX status (mactime field) is valid and
46 contains the time the SYNC preamble was received.
47 RX_FLAG_MMIC_STRIPPED
49 the Michael MIC is stripped off this frame, verification has been
50 done by the hardware.
51 RX_FLAG_IV_STRIPPED
53 The IV and ICV are stripped from this frame. If this flag is set,
54 the stack cannot do any replay detection hence the driver or
55 hardware will have to do that.
56 RX_FLAG_FAILED_FCS_CRC
58 Set this flag if the FCS check failed on the frame.
59 RX_FLAG_FAILED_PLCP_CRC
61 Set this flag if the PCLP check failed on the frame.
62 RX_FLAG_MACTIME_START
64 The timestamp passed in the RX status (mactime field) is valid and
65 contains the time the first symbol of the MPDU was received. This
66 is useful in monitor mode and for proper IBSS merging.
67 RX_FLAG_NO_SIGNAL_VAL
69 The signal strength value is not present. Valid only for data
70 frames (mainly A-MPDU)
71 RX_FLAG_AMPDU_DETAILS
73 A-MPDU details are known, in particular the reference number
74 (ampdu_reference) must be populated and be a distinct number for
75 each A-MPDU
76 RX_FLAG_PN_VALIDATED
78 Currently only valid for CCMP/GCMP frames, this flag indicates that
79 the PN was verified for replay protection. Note that this flag is
80 also currently only supported when a frame is also decrypted (ie.
81 RX_FLAG_DECRYPTED must be set)
82 RX_FLAG_DUP_VALIDATED
84 The driver should set this flag if it did de-duplication by itself.
85 RX_FLAG_AMPDU_LAST_KNOWN
87 last subframe is known, should be set on all subframes of a single
88 A-MPDU
89 RX_FLAG_AMPDU_IS_LAST
91 this subframe is the last subframe of the A-MPDU
92 RX_FLAG_AMPDU_DELIM_CRC_ERROR
94 A delimiter CRC error has been detected on this subframe
95 RX_FLAG_AMPDU_DELIM_CRC_KNOWN
97 The delimiter CRC field is known (the CRC is stored in the
98 ampdu_delimiter_crc field)
99 RX_FLAG_MACTIME_END
101 The timestamp passed in the RX status (mactime field) is valid and
102 contains the time the last symbol of the MPDU (including FCS) was
103 received.
104 RX_FLAG_ONLY_MONITOR
106 Report frame only to monitor interfaces without processing it in
107 any regular way. This is useful if drivers offload some frames but
108 still want to report them for sniffing purposes.
109 RX_FLAG_SKIP_MONITOR
111 Process and report frame to all interfaces except monitor
112 interfaces. This is useful if drivers offload some frames but still
113 want to report them for sniffing purposes.
114 RX_FLAG_AMSDU_MORE
116 Some drivers may prefer to report separate A-MSDU subframes instead
117 of a one huge frame for performance reasons. All, but the last MSDU
118 from an A-MSDU should have this flag set. E.g. if an A-MSDU has 3
119 frames, the first 2 must have the flag set, while the 3rd (last)
120 one must not have this flag set. The flag is used to deal with
121 retransmission/duplication recovery properly since A-MSDU subframes
122 share the same sequence number. Reported subframes can be either
123 regular MSDU or singly A-MSDUs. Subframes must not be interleaved
124 with other frames.
125 RX_FLAG_RADIOTAP_VENDOR_DATA
127 This frame contains vendor-specific radiotap data in the skb->data
128 (before the frame) as described by the struct
129 ieee80211_vendor_radiotap.
130 RX_FLAG_MIC_STRIPPED
132 The mic was stripped of this packet. Decryption was done by the
133 hardware
134 RX_FLAG_ALLOW_SAME_PN
136 Allow the same PN as same packet before. This is used for AMSDU
137 subframes which can have the same PN as the first subframe.
138 RX_FLAG_ICV_STRIPPED
140 The ICV is stripped from this frame. CRC checking must be done in
141 the hardware.
142
144 These flags are used with the flag member of struct
145 ieee80211_rx_status.
146
148 Johannes Berg <johannes@sipsolutions.net>
149 Author.
150
152Kernel Hackers Manual 3.10 June 2019 ENUM MAC80211_RX_FLA(9)