netdev - Re: [RFC PATCH v4 11/14] selinux: Cache NetLabel secattrs in the socket's security struct

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Date:	Fri, 5 Sep 2008 19:12:02 +1000 (EST)
From:	James Morris <jmorris@...ei.org>
To:	Paul Moore <paul.moore@...com>
cc:	selinux@...ho.nsa.gov, netdev@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: Re: [RFC PATCH v4 11/14] selinux: Cache NetLabel secattrs in the
 socket's security struct

On Tue, 2 Sep 2008, Paul Moore wrote:

>  /**
> + * selinux_netlbl_sock_genattr - Generate the NetLabel socket secattr
> + * @sk: the socket
> + * @sid: the socket's SID
> + *
> + * Description:
> + * Generate the NetLabel security attributes for a socket, making full use of
> + * the socket's attribute cache.  Returns a pointer to the security attributes
> + * on success, negative values on failure.

Don't you mean NULL on failure?

> + *
> + */
> +static struct netlbl_lsm_secattr *selinux_netlbl_sock_genattr(struct sock *sk,
> +							      u32 sid)
> +{
> +	int rc;
> +	struct sk_security_struct *sksec = sk->sk_security;
> +	struct netlbl_lsm_secattr *secattr;
> +
> +	if (sksec->nlbl_secattr != NULL)
> +		return sksec->nlbl_secattr;
> +
> +	secattr = netlbl_secattr_alloc(GFP_ATOMIC);
> +	if (secattr == NULL)
> +		return NULL;
> +	rc = security_netlbl_sid_to_secattr(sid, secattr);
> +	if (rc != 0) {
> +		netlbl_secattr_free(secattr);
> +		return NULL;
> +	}
> +	sksec->nlbl_secattr = secattr;
> +
> +	return secattr;
> +}
> +

Acked-by: James Morris <jmorris@...ei.org>


-- 
James Morris
<jmorris@...ei.org>
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