Return-path: Received: from nf-out-0910.google.com ([64.233.182.189]:21691 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756851AbYDAOz7 (ORCPT ); Tue, 1 Apr 2008 10:55:59 -0400 Received: by nf-out-0910.google.com with SMTP id g13so858802nfb.21 for ; Tue, 01 Apr 2008 07:55:57 -0700 (PDT) To: Mark Hagger Subject: Re: [PATCH] b43: Enable quantum cryptography support Date: Tue, 1 Apr 2008 16:56:13 +0200 Cc: Michael Buesch , John Linville , linux-wireless@vger.kernel.org, bcm43xx-dev@lists.berlios.de References: <200804011613.06749.mb@bu3sch.de> <1207061419.2879.298.camel@giga.cambridge.m-spatial.com> In-Reply-To: <1207061419.2879.298.camel@giga.cambridge.m-spatial.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Message-Id: <200804011656.15040.IvDoorn@gmail.com> (sfid-20080401_155602_867506_275AE8B0) From: Ivo van Doorn Sender: linux-wireless-owner@vger.kernel.org List-ID: On Tuesday 01 April 2008, Mark Hagger wrote: > Excellent, did you manage to implement the time travel support mode as > well? Most likely not, that only works on Ralink hardware, and rt2x00 will support that with the 2.2.0 release. Ivo > On Tue, 2008-04-01 at 16:13 +0200, Michael Buesch wrote: > > This patch enables support for quantum cryptography on latest b43 devices. > > The quantum cryptography algorithm is 100% backward compatible with the > > standard CCMP algorithm, so no additional changes to the mac80211 stack > > are needed. While staying compatible, it makes the unbreakable(!) WLAN connection > > possible. Of course, that's only the case, if both ends use b43-qcrypto. > > In the case where one STA uses legacy encryption, the card will automatically > > detect this and switch back to plain old CCMP. > > > > Signed-off-by: Michael Buesch > > > > --- > > > > John, please queue this patch for linux-3.6.26 > > > > > > Index: wireless-testing/drivers/net/wireless/b43/b43.h > > =================================================================== > > --- wireless-testing.orig/drivers/net/wireless/b43/b43.h 2008-03-22 15:44:00.000000000 +0100 > > +++ wireless-testing/drivers/net/wireless/b43/b43.h 2008-04-01 15:53:40.000000000 +0200 > > @@ -270,6 +270,7 @@ enum { > > #define B43_HF_ANTSELMODE 0x000200000000ULL /* Antenna selection mode (rev >= 13 only) */ > > #define B43_HF_MLADVW 0x001000000000ULL /* N PHY ML ADV workaround (rev >= 13 only) */ > > #define B43_HF_PR45960W 0x080000000000ULL /* PR 45960 workaround (rev >= 13 only) */ > > +#define B43_HF_QUANTUMCRYPT 0x100000000000ULL /* Enable quantum cryptography in firmware. */ > > > > /* MacFilter offsets. */ > > #define B43_MACFILTER_SELF 0x0000 > > @@ -439,6 +440,7 @@ enum { > > B43_SEC_ALGO_AES, > > B43_SEC_ALGO_WEP104, > > B43_SEC_ALGO_AES_LEGACY, > > + B43_SEC_ALGO_QUANTUM, > > }; > > > > struct b43_dmaring; > > Index: wireless-testing/drivers/net/wireless/b43/main.c > > =================================================================== > > --- wireless-testing.orig/drivers/net/wireless/b43/main.c 2008-03-27 17:11:38.000000000 +0100 > > +++ wireless-testing/drivers/net/wireless/b43/main.c 2008-04-01 15:53:41.000000000 +0200 > > @@ -3215,6 +3215,13 @@ static int b43_op_set_key(struct ieee802 > > break; > > case ALG_CCMP: > > algorithm = B43_SEC_ALGO_AES; > > + if (dev->dev->id.revision >= 20080401) { > > + /* Latest devices can do quantum cryptography > > + * to encrypt/decrypt the data stream. > > + * This is 100% backward compatible with the traditional > > + * CCMP algorithm. */ > > + algorithm = B43_SEC_ALGO_QUANTUM; > > + } > > break; > > default: > > B43_WARN_ON(1); > > @@ -3254,6 +3261,10 @@ static int b43_op_set_key(struct ieee802 > > b43_hf_write(dev, > > b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); > > } > > + if (algorithm == B43_SEC_ALGO_QUANTUM) { > > + b43_hf_write(dev, b43_hf_read(dev) > > + | B43_HF_QUANTUMCRYPT); > > + } > > key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; > > break; > > case DISABLE_KEY: { > > > > > ________________________________________________________________________ > This email has been scanned for all known viruses by the MessageLabs SkyScan service. > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >