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From: Holger Schurig <holgerschurig-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Johannes Berg <johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org>,
	David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
	daniel-rDUAYElUppE@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dcbw-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	m.hirsch-5g8ninUHluJWk0Htik3J/w@public.gmane.org,
	netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	libertas-dev-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	stable-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.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-YfaajirXv2244ywRPIzf9A@public.gmane.org>

> 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
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  parent reply	other threads:[~2009-12-15 10:30 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-12 20:47 [PATCH] wireless: wext: allocate space for NULL-termination for 32byte SSIDs Daniel Mack
2009-12-15  9:43 ` David Miller
2009-12-15 10:03   ` Johannes Berg
2009-12-15 10:05     ` Johannes Berg
2009-12-15 10:07     ` Johannes Berg
     [not found]       ` <1260871634.3692.6.camel-YfaajirXv2244ywRPIzf9A@public.gmane.org>
2009-12-15 10:20         ` Daniel Mack
     [not found]           ` <20091215102035.GJ28375-ahpEBR4enfnCULTFXS99ULNAH6kLmebB@public.gmane.org>
2009-12-15 10:31             ` Johannes Berg
2009-12-15 10:37               ` Daniel Mack
2009-12-15 10:30         ` Holger Schurig [this message]
     [not found]           ` <200912151130.59103.holgerschurig-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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
2009-12-15 10:16 ` Albert Cahalan
2009-12-15 16:29 ` Marcel Holtmann

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