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From: Holger Schurig <hs4233@mail.mn-solutions.de>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-wireless@vger.kernel.org
Subject: Re: Questions about cfg80211's cfg80211_connect_params->crypto settings
Date: Mon, 26 Oct 2009 13:11:47 +0100	[thread overview]
Message-ID: <200910261311.47164.hs4233@mail.mn-solutions.de> (raw)
In-Reply-To: <1256548953.28230.19.camel@johannes.local>

> > sme->crypto.wpa_versions
> 
> > sme->crypto.n_ciphers_pairwise, sme->crypto.ciphers_pairwise
> 
> > sme->crypto.n_akm_suites, sme->crypto.akm_suites
> 
> All these pretty much exist for hw that doesn't want to use the
> IE(s) contained in the connect parameters. If you send an assoc
> request with those IEs, you can safely ignore the parameters
> here. It's just there so one doesn't have to parse the IEs.

Okay, then I conclude that it's save to ignore

  sme->privacy
  sme->crypto.wpa_versions
  sme->crypto.n_ciphers_pairwise
  sme->crypto.ciphers_pairwise
  sme->crypto.n_akm_suites
  sme->crypto.akm_suites

inside .connect() if I check sme->crypto.cipher_suite for

  WLAN_CIPHER_SUITE_WEP40
  WLAN_CIPHER_SUITE_WEP104
  WLAN_CIPHER_SUITE_TKIP
  WLAN_CIPHER_SUITE_CCMP
  0  (meaning no encryption/WEP obfuscation)




lbs_cfg_connect() calls lbs_associate() which hands the complete 
sme->ie to as a TLV to the firmware. However, I don't do any 
parsing of sme->ie by myself.

-- 
http://www.holgerschurig.de

  reply	other threads:[~2009-10-26 12:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-26  8:47 Questions about cfg80211's cfg80211_connect_params->crypto settings Holger Schurig
2009-10-26  9:22 ` Johannes Berg
2009-10-26 12:11   ` Holger Schurig [this message]
2009-10-26 12:22     ` Johannes Berg
2009-10-26 12:59       ` Holger Schurig
2009-10-26 13:03         ` Johannes Berg
2009-10-26 19:57 ` Dan Williams

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