From: Paul Moore <paul.moore@hp.com>
To: David Miller <davem@davemloft.net>
Cc: linux-security-module@vger.kernel.org, selinux@tycho.nsa.gov,
netdev@vger.kernel.org
Subject: Re: [RFC PATCH v1 1/3] lsm: Relocate the IPv4 security_inet_conn_request() hooks
Date: Fri, 13 Mar 2009 15:39:30 -0400 [thread overview]
Message-ID: <200903131539.30903.paul.moore@hp.com> (raw)
In-Reply-To: <20090313.115458.168786837.davem@davemloft.net>
On Friday 13 March 2009 02:54:58 pm David Miller wrote:
> From: Paul Moore <paul.moore@hp.com>
> Date: Thu, 12 Mar 2009 12:22:57 -0400
>
> > The current placement of the security_inet_conn_request() hooks do not
> > allow individual LSMs to override the IP options of the connection's
> > request_sock. This is a problem as both SELinux and Smack have the
> > ability to use labeled networking protocols which make use of IP options
> > to carry security attributes and the inability to set the IP options at
> > the start of the TCP handshake is problematic.
> >
> > This patch moves the IPv4 security_inet_conn_request() hooks past the
> > code where the request_sock's IP options are set/reset so that the LSM
> > can safely manipulate the IP options as needed. This patch intentionally
> > does not change the related IPv6 hooks as IPv6 based labeling protocols
> > which use IPv6 options are not currently implemented, once they are we
> > will have a better idea of the correct placement for the IPv6 hooks.
>
> This looks OK to me:
>
> Acked-by: David S. Miller <davem@davemloft.net>
Great, thanks for taking a look.
--
paul moore
linux @ hp
next prev parent reply other threads:[~2009-03-13 19:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-12 16:22 [RFC PATCH v1 0/3] Fix a problem with incoming TCP connections and NetLabel Paul Moore
2009-03-12 16:22 ` [RFC PATCH v1 1/3] lsm: Relocate the IPv4 security_inet_conn_request() hooks Paul Moore
2009-03-13 18:54 ` David Miller
2009-03-13 19:39 ` Paul Moore [this message]
2009-03-12 16:23 ` [RFC PATCH v1 2/3] netlabel: Label incoming TCP connections correctly in SELinux Paul Moore
2009-03-12 16:23 ` [RFC PATCH v1 3/3] netlabel: Label incoming TCP connections correctly in Smack Paul Moore
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