From owner-freebsd-hackers@FreeBSD.ORG  Sun Jul 24 08:40:33 2011
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 2AADE1065674
	for <freebsd-hackers@freebsd.org>; Sun, 24 Jul 2011 08:40:33 +0000 (UTC)
	(envelope-from exorcistkiller@gmail.com)
Received: from sam.nabble.com (sam.nabble.com [216.139.236.26])
	by mx1.freebsd.org (Postfix) with ESMTP id 0A2318FC15
	for <freebsd-hackers@freebsd.org>; Sun, 24 Jul 2011 08:40:32 +0000 (UTC)
Received: from [192.168.236.26] (helo=sam.nabble.com)
	by sam.nabble.com with esmtp (Exim 4.72)
	(envelope-from <exorcistkiller@gmail.com>) id 1QkuEi-0005ZB-7E
	for freebsd-hackers@freebsd.org; Sun, 24 Jul 2011 01:40:32 -0700
Date: Sun, 24 Jul 2011 01:40:32 -0700 (PDT)
From: exorcistkiller <exorcistkiller@gmail.com>
To: freebsd-hackers@freebsd.org
Message-ID: <1311496832217-4627557.post@n5.nabble.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Subject: Add setacl system call?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 24 Jul 2011 08:40:33 -0000

Hi, I'm working on a course project in which I need to add 3 system calls.
One of which is setacl(char *name, int type, int idnum, int perms), which
set acl for a file specified by name. I used newfs as in
ftp://ftp.tw.freebsd.org/pub/FreeBSD/FreeBSD-current/src/sbin/newfs/ to make
this new filesystem, named myfs (which really is UFS2) and mounted it. 

My question is: 
1) where to start with? 
2) Is this filesystem actually a userland UFS and I can use functions in
libufs(3)?
3) What about functions in ufs_acl.c? Should the acls be stored on the
extended attributes blocks? Does FreeBSD 8.2 support it?

I know I'm asking stupid questions, but a small hint might help me a lot.
Thank you so much..

--
View this message in context: http://freebsd.1045724.n5.nabble.com/Add-setacl-system-call-tp4627557p4627557.html
Sent from the freebsd-hackers mailing list archive at Nabble.com.