• Eliad Peller's avatar
    mac80211: move TKIP TX IVs to public part of key struct · f8079d43
    Eliad Peller authored
    Some drivers/devices might want to set the IVs by
    themselves (and still let mac80211 generate MMIC).
    Specifically, this is needed when the device does
    offloading at certain times, and the driver has
    to make sure that the IVs of new tx frames (from
    the host) are synchronized with IVs that were
    potentially used during the offloading.
    Similarly to CCMP, move the TX IVs of TKIP keys to the
    public part of the key struct, and export a function
    to add the IV right into the crypto header.
    The public tx_pn field is defined as atomic64, so define
    TKIP_PN_TO_IV16/32 helper macros to convert it to iv16/32
    when needed.
    Since the iv32 used for the p1k cache is taken
    directly from the frame, we can safely remove
    iv16/32 from being protected by tkip.txlock.
    Signed-off-by: default avatarEliad Peller <eliadx.peller@intel.com>
    Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
    Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
debugfs_key.c 11.8 KB