From: Paul Moore <paul.moore@hp.com>
To: etienne <etienne.basset@numericable.fr>
Cc: Casey Schaufler <casey@schaufler-ca.com>,
"Linux-Kernel" <linux-kernel@vger.kernel.org>,
linux-security-module@vger.kernel.org
Subject: Re: [PATCH] SMACK smacklabel : apply &MASK to IP inserted in /smack/netlabel
Date: Tue, 17 Feb 2009 18:54:17 -0500 [thread overview]
Message-ID: <200902171854.17203.paul.moore@hp.com> (raw)
In-Reply-To: <499B1ECF.2020809@numericable.fr>
On Tuesday 17 February 2009 03:32:15 pm etienne wrote:
> ----
> diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
> index 8e42800..5717150 100644
> --- a/security/smack/smackfs.c
> +++ b/security/smack/smackfs.c
> @@ -765,6 +765,7 @@ static ssize_t smk_write_netlbladdr(struct file *file,
> const char __user *buf, mask.s_addr |= bebits;
> bebits <<= 1;
> }
> + newname.sin_addr.s_addr &= mask.s_addr;
> /*
> * Only allow one writer at a time. Writes should be
> * quite rare and small in any case.
If you do this you can simplify some of the code in smack_host_label() by
removing the code which applies the mask to the stored addresses when
comparing addresses. There may be other places as well.
--
paul moore
linux @ hp
next prev parent reply other threads:[~2009-02-17 23:54 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.O38YY4pVfLlMFJNBI3mhgn+qOcQ@ifi.uio.no>
[not found] ` <fa.c87eBVWyCqqi9h1c54QlwKDAIbg@ifi.uio.no>
[not found] ` <fa.f7jv/+EnhNJziduAqQS3XHiU6/A@ifi.uio.no>
[not found] ` <fa.1A5YyyPb1uCn//vnk7baNJGI0IM@ifi.uio.no>
[not found] ` <fa.HFpMNTzIQ1+pODZB3+XkfnipCfo@ifi.uio.no>
[not found] ` <fa.3IBoeBnwT1eZcqeO6DAE1tHBYc4@ifi.uio.no>
2009-02-17 20:01 ` [PATCH] SMACK netfilter smacklabel socket match etienne
2009-02-17 20:32 ` [PATCH] SMACK smacklabel : apply &MASK to IP inserted in /smack/netlabel etienne
2009-02-17 23:54 ` Paul Moore [this message]
2009-02-18 6:01 ` Casey Schaufler
2009-02-18 7:25 ` etienne
2009-02-17 22:39 ` [PATCH] SMACK netfilter smacklabel socket match David Miller
2009-02-17 23:52 ` Paul Moore
2009-02-18 7:23 ` etienne
2009-02-18 15:05 ` Paul Moore
2009-02-18 17:09 ` Casey Schaufler
2009-02-18 19:35 ` etienne
2009-02-18 20:55 ` Paul Moore
2009-02-20 4:36 ` Casey Schaufler
2009-02-20 18:26 ` etienne
2009-02-18 18:29 ` etienne
2009-02-18 19:06 ` Casey Schaufler
2009-02-18 21:16 ` [PATCH] SMACK netlabel fixes etienne
2009-02-19 5:50 ` Casey Schaufler
2009-02-19 15:24 ` Paul Moore
2009-02-19 23:22 ` [PATCH] SMACK netlabel fixes v2 etienne
2009-02-20 16:11 ` Paul Moore
2009-02-18 19:18 ` [PATCH] SMACK netfilter smacklabel socket match Paul Moore
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