linux-kernel - Re: [PATCH 1/1] security: introduce fs caps

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Date:	Tue, 14 Nov 2006 07:55:46 -0600
From:	"Bill O'Donnell" <billodo@....com>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	Chris Friedhoff <chris@...edhoff.org>,
	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org,
	Stephen Smalley <sds@...ho.nsa.gov>,
	James Morris <jmorris@...ei.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Andrew Morton <akpm@...l.org>,
	KaiGai Kohei <kaigai@...gai.gr.jp>,
	Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: [PATCH 1/1] security: introduce fs caps

On Mon, Nov 13, 2006 at 11:25:31PM -0600, Serge E. Hallyn wrote:
| Quoting Bill O'Donnell (billodo@....com):
| > On Thu, Nov 09, 2006 at 10:33:49AM +0100, Chris Friedhoff wrote:
| > | Page http://www.friedhoff.org/fscaps.html updated ...
| > | Kernel 2.6.18.2 updated ...
| > | System keeps on humming ...
| > | Is anyone else using/testing the patch? Please give feedback ...
| > 
| > Most likely a cockpit error, but I'm having trouble when I give the 
| > capability to ping (using the userexample from your fscaps page):
| > 
| > $ uname -a
| > Linux certify 2.6.19-rc3 #3 SMP PREEMPT Mon Nov 13 14:40:54 CST 2006 ia64
| > 
| > $ sudo chmod 711 /bin/ping
| > $ ping -c 1 localhost
| > ping: icmp open socket: Operation not permitted
| > 
| > $ sudo setfcaps cap_net_raw=ep /bin/ping           
| > /bin/ping: Function not implemented (errno=38)
| > 
| > Any help is appreciated.
| 
| Hmm, two things which come to mind are (a) do you have extended
| attributes compiled into your kernel and (b) is sudo properly set
| up.
| 
| But for (a) to be the case, you should be getting EOPNOTZSPUP (98),
| not ENOSYS (38).
| 
| Could you send me a copy of your .config, tell me which filesystem
| you are using, and send the /tmp/straceout after doing
| 
| 	strace -o/tmp/straceout -f setfcaps cap_net_raw=ep /bin/ping
| 
| as root?

.config and straceout attached.  The filesystem is ext3.  Will check if
sudo is properly configured.

Thanks,
Bill

-- 
Bill O'Donnell
SGI
651.683.3079
billodo@....com

View attachment ".config.certify" of type "text/plain" (28801 bytes)

View attachment "straceout" of type "text/plain" (2655 bytes)