1ENUM IEEE80211_FILTE(9) The basic mac80211 driver inte ENUM IEEE80211_FILTE(9)
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6 enum_ieee80211_filter_flags - hardware filter flags
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9 enum ieee80211_filter_flags {
10 FIF_PROMISC_IN_BSS,
11 FIF_ALLMULTI,
12 FIF_FCSFAIL,
13 FIF_PLCPFAIL,
14 FIF_BCN_PRBRESP_PROMISC,
15 FIF_CONTROL,
16 FIF_OTHER_BSS,
17 FIF_PSPOLL,
18 FIF_PROBE_REQ
19 };
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22 FIF_PROMISC_IN_BSS
23 promiscuous mode within your BSS, think of the BSS as your network
24 segment and then this corresponds to the regular ethernet device
25 promiscuous mode.
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27 FIF_ALLMULTI
28 pass all multicast frames, this is used if requested by the user or
29 if the hardware is not capable of filtering by multicast address.
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31 FIF_FCSFAIL
32 pass frames with failed FCS (but you need to set the
33 RX_FLAG_FAILED_FCS_CRC for them)
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35 FIF_PLCPFAIL
36 pass frames with failed PLCP CRC (but you need to set the
37 RX_FLAG_FAILED_PLCP_CRC for them
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39 FIF_BCN_PRBRESP_PROMISC
40 This flag is set during scanning to indicate to the hardware that
41 it should not filter beacons or probe responses by BSSID. Filtering
42 them can greatly reduce the amount of processing mac80211 needs to
43 do and the amount of CPU wakeups, so you should honour this flag if
44 possible.
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46 FIF_CONTROL
47 pass control frames (except for PS Poll) addressed to this station
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49 FIF_OTHER_BSS
50 pass frames destined to other BSSes
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52 FIF_PSPOLL
53 pass PS Poll frames
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55 FIF_PROBE_REQ
56 pass probe request frames
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59 These flags determine what the filter in hardware should be programmed
60 to let through and what should not be passed to the stack. It is always
61 safe to pass more frames than requested, but this has negative impact
62 on power consumption.
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65 Johannes Berg <johannes@sipsolutions.net>
66 Author.
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69Kernel Hackers Manual 2.6. June 2019 ENUM IEEE80211_FILTE(9)