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From: Holger Schurig <holgerschurig@gmail.com>
To: linux-wireless@vger.kernel.org
Cc: Johannes Berg <johannes@sipsolutions.net>,
	David Miller <davem@davemloft.net>,
	daniel@caiaq.de, linux-kernel@vger.kernel.org, dcbw@redhat.com,
	m.hirsch@raumfeld.com, netdev@vger.kernel.org,
	libertas-dev@lists.infradead.org, stable@kernel.org
Subject: Re: [PATCH] wireless: wext: allocate space for NULL-termination for 32byte SSIDs
Date: Tue, 15 Dec 2009 11:30:58 +0100	[thread overview]
Message-ID: <200912151130.59103.holgerschurig@gmail.com> (raw)
In-Reply-To: <1260871634.3692.6.camel@johannes.local>

> drivers/net/wireless/libertas$ grep lbs_deb_ * | grep ssid
> |grep '%s' 
> assoc.c:	lbs_deb_join("current SSID '%s', ssid length %u\n",
> assoc.c:	lbs_deb_join("requested ssid '%s', ssid length %u\n",
> assoc.c:	lbs_deb_join("ADHOC_START: SSID '%s', ssid
>               length %u\n", 
> scan.c:		lbs_deb_wext("set_scan, essid '%s'\n",

All those lines are gone once my cfg80211 lands.

Do you know any way to make sparse moan about them?


BTW: the libertas firmware sometimes treat an SSID as a 
zero-terminated string. There are some firmware commands that 
accept just an u8[32] bytes for the SSID, but not an ssid_len, 
e.g. in the CMD_802_11_AD_HOC_START command.

You therefore can't connect to the otherwise legitimate SSID of 
TEST\0\0\0.

-- 
http://www.holgerschurig.de

  parent reply	other threads:[~2009-12-15 10:32 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1260650850-16163-1-git-send-email-daniel@caiaq.de>
2009-12-15  9:43 ` [PATCH] wireless: wext: allocate space for NULL-termination for 32byte SSIDs David Miller
2009-12-15 10:03   ` Johannes Berg
2009-12-15 10:05     ` Johannes Berg
2009-12-15 10:07     ` Johannes Berg
2009-12-15 10:20       ` Daniel Mack
2009-12-15 10:31         ` Johannes Berg
2009-12-15 10:37           ` Daniel Mack
2009-12-15 10:30       ` Holger Schurig [this message]
2009-12-15 10:35         ` Johannes Berg
2009-12-16  6:54           ` Albert Cahalan
2009-12-16  8:19             ` Johannes Berg
2009-12-16  8:26             ` Holger Schurig
2009-12-16  3:58     ` Daniel Mack
2009-12-16  8:20       ` Johannes Berg

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