|To:||Denis Vlasenko <vda@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>|
|Subject:||Re: [RFC] acx100 inclusion in mainline; generic 802.11 stack|
|From:||Sam Leffler <sam@xxxxxxxxx>|
|Date:||Mon, 6 Sep 2004 11:13:31 -0700|
|Cc:||jgarzik@xxxxxxxxx, netdev@xxxxxxxxxxx, acx100-devel@xxxxxxxxxxxxxxxxxxxxx, Jean Tourrilhes <jt@xxxxxxxxxxxxxxxxxx>, Jouni Malinen <jkmaline@xxxxxxxxx>, prism54-devel@xxxxxxxxxxx|
On Aug 31, 2004, at 11:11 AM, Denis Vlasenko wrote:
To correct this oft-repeated misinformation: "Atheros has one" is wrong. There is a freely available device-independent 802.11 protocol stack that is dual BSD/GPL licensed. The only relationship between this code and Atheros is that the madwifi project uses it to support Atheros hardware under Linux. Atheros holds no copyrights on any of the net80211 code.
As to it being derived from BSD, that is correct but misleading. The 1st generation of this code was done for netbsd but the current code is very different and has been developed almost exclusively in Linux for over a year (though I'm now trying to find time to backport to FreeBSD).
The net80211 code is actively used in netbsd to support 6+ drivers and a similar number in freebsd. There is a fairly complete implementation of the 802.11 protocols (fragmentation isn't there but will be soon) including 11g, WPA/11i, WME and WSM (coming soon). WPA/802.11i supplicant support using wpa_supplicant has been available for a while and a hostapd-based authenticator will hit CVS shortly. The management API for Linux is based on wireless extensions (WE is insufficient so like everyone else you'll find lots of private ioctls).
I've suggested this code as a good starting point for a "generic 802.11 stack" but received only misinformed responses. Folks who are unaware of the work should take a look at it.
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