On Wed, Sep 03, 2008 at 10:42:09AM -0500, David Young wrote: > On Wed, Sep 03, 2008 at 04:51:54PM +0200, Quentin Garnier wrote: > > On Wed, Sep 03, 2008 at 09:39:31AM -0500, David Young wrote: > > > On Wed, Sep 03, 2008 at 05:52:45AM +0200, Quentin Garnier wrote: > > > > Hi, > > > > > > > > I've been working on importing support for RALink 2860 devices from > > > > OpenBSD, because that's the WLAN chip the EeeBox has. > > > > > > > > Like wi(4), this chip is able to do encryption and decryption in the > > > > hardware. Like wi(4), it has the issue that the net80211 layer isn't > > > > too keen on the idea. > > > > > > Actually, the net80211 layer *is* keen on the idea. Maybe it appears > > > otherwise. Can you say more about that? > > > > Do you remember the workaround wi(4) has to use not to see F_DROPUNENC > > kill all frames? > > > > You called it grotty in the first place :) > > http://mail-index.netbsd.org/tech-net/2007/11/26/0005.html > > It is grotty. I do not think that it should be repeated. Fair enough. I agree. > > I guess the problem is that just like for wi, the crypto headers are > > lost. > > I guess so. Does the Ralink adapter clear the crypto bit, > IEEE80211_FC1_WEP, or leave it set? Does it indicate the key number It leaves it set. Exactly like wi(4) > by using, for example, bits in the rx descriptor? Is it possible to It might. I can't be affirmative without testing, but the chip- sepcific header of the frame has 2 bits named KeyIndex in the Ralink linux driver. > program the Ralink adapter to decrypt without removing the WEP header? I didn't find anything remotely connected to that in the register definitions in the Ralink linux driver. > I think that the best option is probably to let software do WEP. I can probably do that. > Second best option may be to add a capability flag to net80211 > (IEEE80211_C_xxx)that tells it that the h/w does the WEP decapsulation, > then fiddle a bit with ieee80211_input(). Maybe. I'll try cooking something up. -- Quentin Garnier - cube%cubidou.net@localhost - cube%NetBSD.org@localhost "See the look on my face from staying too long in one place [...] every time the morning breaks I know I'm closer to falling" KT Tunstall, Saving My Face, Drastic Fantastic, 2007.
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