1ENUM IEEE80211_KEY_F(9) Advanced driver interface ENUM IEEE80211_KEY_F(9)
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6 enum_ieee80211_key_flags - key flags
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9 enum ieee80211_key_flags {
10 IEEE80211_KEY_FLAG_GENERATE_IV_MGMT,
11 IEEE80211_KEY_FLAG_GENERATE_IV,
12 IEEE80211_KEY_FLAG_GENERATE_MMIC,
13 IEEE80211_KEY_FLAG_PAIRWISE,
14 IEEE80211_KEY_FLAG_SW_MGMT_TX,
15 IEEE80211_KEY_FLAG_PUT_IV_SPACE,
16 IEEE80211_KEY_FLAG_RX_MGMT,
17 IEEE80211_KEY_FLAG_RESERVE_TAILROOM
18 };
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21 IEEE80211_KEY_FLAG_GENERATE_IV_MGMT
22 This flag should be set by the driver for a CCMP/GCMP key to
23 indicate that is requires IV generation only for managment frames
24 (MFP).
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26 IEEE80211_KEY_FLAG_GENERATE_IV
27 This flag should be set by the driver to indicate that it requires
28 IV generation for this particular key. Setting this flag does not
29 necessarily mean that SKBs will have sufficient tailroom for ICV or
30 MIC.
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32 IEEE80211_KEY_FLAG_GENERATE_MMIC
33 This flag should be set by the driver for a TKIP key if it requires
34 Michael MIC generation in software.
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36 IEEE80211_KEY_FLAG_PAIRWISE
37 Set by mac80211, this flag indicates that the key is pairwise
38 rather then a shared key.
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40 IEEE80211_KEY_FLAG_SW_MGMT_TX
41 This flag should be set by the driver for a CCMP/GCMP key if it
42 requires CCMP/GCMP encryption of management frames (MFP) to be done
43 in software.
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45 IEEE80211_KEY_FLAG_PUT_IV_SPACE
46 This flag should be set by the driver if space should be prepared
47 for the IV, but the IV itself should not be generated. Do not set
48 together with IEEE80211_KEY_FLAG_GENERATE_IV on the same key.
49 Setting this flag does not necessarily mean that SKBs will have
50 sufficient tailroom for ICV or MIC.
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52 IEEE80211_KEY_FLAG_RX_MGMT
53 This key will be used to decrypt received management frames. The
54 flag can help drivers that have a hardware crypto implementation
55 that doesn´t deal with management frames properly by allowing them
56 to not upload the keys to hardware and fall back to software
57 crypto. Note that this flag deals only with RX, if your crypto
58 engine can´t deal with TX you can also set the
59 IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in SW.
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61 IEEE80211_KEY_FLAG_RESERVE_TAILROOM
62 This flag should be set by the driver for a key to indicate that
63 sufficient tailroom must always be reserved for ICV or MIC, even
64 when HW encryption is enabled.
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67 These flags are used for communication about keys between the driver
68 and mac80211, with the flags parameter of struct ieee80211_key_conf.
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71 Johannes Berg <johannes@sipsolutions.net>
72 Author.
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75Kernel Hackers Manual 2.6. June 2019 ENUM IEEE80211_KEY_F(9)