2010/5/25 Huy Le <lehuy0406@xxxxxxxxx>: > On 05/24/2010 06:26 PM, Gábor Stefanik wrote: > > 2010/5/25 Gábor Stefanik <netrolller.3d@xxxxxxxxx>: > > > On Tue, May 25, 2010 at 3:02 AM, Huy Le <lehuy0406@xxxxxxxxx> wrote: > > > Hi, > > Currently I try aircrack-ng with b43 driver but it is fail at this statement > due to the following statement: > > ioctl( fd, SIOCGIWFREQ, &wrq ) < 0 > > This happens because we do not have ioctl for b43 driver. I just want to ask > if there is any way to work around. > > > Confirmed with ath9k. Apparently rdev->channel is NULL for monitor > interfaces. > > > I meant wdev->channel - it got changed recently. > > > > > > Thanks. > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-) > > > > > > Thanks for your respond. However, I can't get what you meant. I am trying > aircrack-ng and I found in the source of aircrack-ng that they call ioctl( > fd, SIOCGIWFREQ, &wrq ). But the driver of b43 doesn't support ioctl, so > this call is failed. Is there any solution for me? My wireless card is > BCM4312 [14e4:4315] > > Thanks. > Well, b43 supports ioctls using cfg80211, at least if cfg80211 wext compat support is enabled in the kernel configuration. The problem is something else - since the change from rdev->channel to wdev->channel, monitor interfaces do not have a valid channel pointer in either rdev or wdev. The same problem exists on ath9k and ath5k, and probably anything that uses mac80211. Attached is a C source for a test app that shows whether SIOCGIWFREQ completes successfully. Compile it using "gcc iwfreqtest.c -o iwfreqtest", the run as "iwfreqtest <name of interface>". It seems to consistently fail on monitor interfaces, and succeed on anything else. -- Vista: [V]iruses, [I]ntruders, [S]pyware, [T]rojans and [A]dware. :-)
Attachment:
iwfreqtest.c
Description: Binary data
