Hi,
> This patch prevents a NULL pointer dereferencing in AP mode:
> ieee80211_if_config will set conf->bssid only if device is of type STA
> or IBSS.
> I see it using following commands right after module loading (with rt61)
> # iwconfig wlan0 mode Master
> # ifconfig wlan0 up
The patch seems to fix the problem at a wrong place. rt2x00 has broken
add_interface handler - it allows adding of AP interface even though the
driver doesn't support AP mode. It is add_interface callback that should
be fixed in rt2x00.
Well rt2x00 does support AP mode, our latest CVS tree (patches for
wireless-dev are in progress) has even shown a working configuration
for some users.
So add_interface is correct at allowing the AP interface, perhaps some
more steps
are required to make it completely work, but it is work in progress.
The check in the patch most likely won't be needed even after AP mode
support is added to rt2x00 - the driver needs to handle AP mode
differently so config_interface callback will be rewritten anyway.
I'll make a check to see if the bssid is NULL or invalid in the
config_bssid() function,
and make sure that in AP mode the MAC is written as BSSID.
Ivo
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