[PATCH] MFP: Clear IGTK

[Masashi Honma]

(2010/02/15 19:26), Kel Modderman wrote:
> ioctl[SIOCSIWENCODEEXT]: Invalid argument
> Driver did not support SIOCSIWENCODEEXT
> wpa_driver_wext_set_key: alg=0 key_idx=5 set_tx=0 seq_len=0 key_len=0
> ioctl[SIOCSIWENCODEEXT]: Invalid argument
> Driver did not support SIOCSIWENCODEEXT
> ---
>
> This has caused a small amount of concern and questions about why these
> new messages appear in wpa_supplicant 0.6.10 and not in 0.6.9. Is this
> something not all drivers support?

The fourth and fifth keys are used for IEEE 802.11w (management frame
protection). As far as I know, only ath9k driver supports this.

If you are not using IEEE 802.11w, you can erase these messages with
commenting out CONFIG_IEEE80211W=y option.

Regards,
Masashi Honma.