ENUM IEEE80211_KEY_F(9)             Advanced driver interface             ENUM IEEE80211_KEY_F(9)



NAME
       enum_ieee80211_key_flags - key flags

SYNOPSIS
       enum ieee80211_key_flags {
         IEEE80211_KEY_FLAG_GENERATE_IV_MGMT,
         IEEE80211_KEY_FLAG_GENERATE_IV,
         IEEE80211_KEY_FLAG_GENERATE_MMIC,
         IEEE80211_KEY_FLAG_PAIRWISE,
         IEEE80211_KEY_FLAG_SW_MGMT_TX,
         IEEE80211_KEY_FLAG_PUT_IV_SPACE,
         IEEE80211_KEY_FLAG_RX_MGMT,
         IEEE80211_KEY_FLAG_RESERVE_TAILROOM
       };

CONSTANTS
       IEEE80211_KEY_FLAG_GENERATE_IV_MGMT
           This flag should be set by the driver for a CCMP/GCMP key to indicate that is requires
           IV generation only for managment frames (MFP).

       IEEE80211_KEY_FLAG_GENERATE_IV
           This flag should be set by the driver to indicate that it requires IV generation for
           this particular key. Setting this flag does not necessarily mean that SKBs will have
           sufficient tailroom for ICV or MIC.

       IEEE80211_KEY_FLAG_GENERATE_MMIC
           This flag should be set by the driver for a TKIP key if it requires Michael MIC
           generation in software.

       IEEE80211_KEY_FLAG_PAIRWISE
           Set by mac80211, this flag indicates that the key is pairwise rather then a shared
           key.

       IEEE80211_KEY_FLAG_SW_MGMT_TX
           This flag should be set by the driver for a CCMP/GCMP key if it requires CCMP/GCMP
           encryption of management frames (MFP) to be done in software.

       IEEE80211_KEY_FLAG_PUT_IV_SPACE
           This flag should be set by the driver if space should be prepared for the IV, but the
           IV itself should not be generated. Do not set together with
           IEEE80211_KEY_FLAG_GENERATE_IV on the same key. Setting this flag does not necessarily
           mean that SKBs will have sufficient tailroom for ICV or MIC.

       IEEE80211_KEY_FLAG_RX_MGMT
           This key will be used to decrypt received management frames. The flag can help drivers
           that have a hardware crypto implementation that doesn't deal with management frames
           properly by allowing them to not upload the keys to hardware and fall back to software
           crypto. Note that this flag deals only with RX, if your crypto engine can't deal with
           TX you can also set the IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in
           SW.

       IEEE80211_KEY_FLAG_RESERVE_TAILROOM
           This flag should be set by the driver for a key to indicate that sufficient tailroom
           must always be reserved for ICV or MIC, even when HW encryption is enabled.

DESCRIPTION
       These flags are used for communication about keys between the driver and mac80211, with
       the flags parameter of struct ieee80211_key_conf.

AUTHOR
       Johannes Berg <johannes AT sipsolutions.net>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   ENUM IEEE80211_KEY_F(9)