Date: Fri, 17 Nov 2006 19:37:41 +0100
From: Chris Friedhoff <chris@friedhoff.org>
To: "Bill O'Donnell" <billodo@sgi.com>
Cc: KaiGai Kohei <kaigai@ak.jp.nec.com>, "Serge E. Hallyn" <serue@us.ibm.com>,
       linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org,
       Stephen Smalley <sds@tycho.nsa.gov>, James Morris <jmorris@namei.org>,
       Chris Wright <chrisw@sous-sol.org>, Andrew Morton <akpm@osdl.org>,
       KaiGai Kohei <kaigai@kaigai.gr.jp>,
       Alexey Dobriyan <adobriyan@gmail.com>
Subject: Re: [PATCH 1/1] security: introduce fs caps
Message-Id: <20061117193741.9be61ff1.chris@friedhoff.org>
In-Reply-To: <20061116144743.GA21497@sgi.com>
References: <20061108222453.GA6408@sergelap.austin.ibm.com>
	<20061109061021.GA32696@sergelap.austin.ibm.com>
	<20061109103349.e58e8f51.chris@friedhoff.org>
	<20061113215706.GA9658@sgi.com>
	<20061114052531.GA20915@sergelap.austin.ibm.com>
	<20061114135546.GA9953@sgi.com>
	<20061114152307.GA7534@sergelap.austin.ibm.com>
	<455B0357.2050400@ak.jp.nec.com>
	<20061115170633.GA21345@sgi.com>
	<20061115224923.539fe60a.chris@friedhoff.org>
	<20061116144743.GA21497@sgi.com>
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> Good quesion.  My gentoo ia32 machine uses libcap.so.1.10.  Probably a FAQ, 
> but is 1.92 actually older than 1.10?
looking at these locations, yes
http://www.me.kernel.org/pub/linux/libs/security/linux-privs/old/kernel-2.3/
http://ftp.kernel.org/pub/linux/libs/security/linux-privs/kernel-2.4/

> | Kaigai also provides a srpm package to compile.
> |  VFS Capability Support -> fscaps version 1.0 [SRPM]
> | (http://www.kaigai.gr.jp/pub/fscaps-1.0-kg.src.rpm)
> 
> I'll try that next.

I installed sles10 in qemu on my pentium-m laptop, compiled  a kernel
with fscap support and installed fscaps-1.0-kg.i386.rpm and got "Invalid
argument (errno=22)" error.
trace output is attached

# id
uid=0(root) gid=0(root) groups=0(root)
# uname -a
Linux sles10 2.6.19-rc3-fscaps-a #2 Fri Nov 17 09:17:40 CET 2006 i686
i686 i386 GNU/Linux
# rpm -q fscaps
fscaps-1.0-kg
# zgrep -i capa /proc/config.gz
CONFIG_SECURITY_FS_CAPABILITIES=y
# setfcaps cap_net_raw=ep /bin/ping
/bin/ping: Invalid argument (errno=22)
# setfcaps cap_sys_module=ep /sbin/modprobe
/sbin/modprobe: Invalid argument (errno=22)
# ls -l /lib/libcap.so*
lrwxrwxrwx 1 root root    11 Nov 17 09:51 /lib/libcap.so -> libcap.so.1
lrwxrwxrwx 1 root root    14 Nov 16 11:57 /lib/libcap.so.1 ->
libcap.so.1.92 -rwxr-xr-x 1 root root 10456 Jun 16
15:14 /lib/libcap.so.1.92


--------------------
Chris Friedhoff
chris@friedhoff.org


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