Re: [PATCH] ath5k: set mac address in add_interface

[Dan Williams <dcbw@redhat.com>]

On Mon, 2008-12-15 at 17:12 +0100, Stefanik G=C3=A1bor wrote:
> On Mon, Dec 15, 2008 at 5:04 PM, Dan Williams <dcbw@redhat.com> wrote=
:
> > On Mon, 2008-12-15 at 16:47 +0100, Stefanik G=C3=A1bor wrote:
> >> This patch regressed support for aireplay-ng's "fragmentation atta=
ck" feature!
> >>
> >> Prior to the landing of this patch (as commit
> >> caeb36d73b23b52a0ea2a8368502ef8230fa67b3), applying the patch @
> >> http://patches.aircrack-ng.org/mac80211_2.6.28-rc4-wl_frag+ack_v2.=
patch
> >> allowed aireplay-ng's fragmentation attack to work with almost all
> >> mac80211 drivers, including ath5k. After the landing of this patch=
,
> >> the attack fails with "No answer, repeating...". (Regression found
> >> using git bisect, and verified by local backout of commit
> >> caeb36d73b23b52a0ea2a8368502ef8230fa67b3.)
> >
> > Unless I misunderstand...  but not all drivers will report their MA=
C
> > address until they have opened the device (ie, add_interface time),
> > because not all devices load firmware until the interface is opened=
, and
> > thus some cannot read their MAC address until that time.
> >
> > So aireplay-ng is broken if it relies on the device having a valid =
mac
> > address before the device is opened.
> >
> > Dan
> >
>=20
> That is not the problem - aireplay-ng operates on a monitor interface
> that is already up. Likely this patch somehow misses monitor
> interfaces.

Ah, ok.  Ignore my mail then :)

dan


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