/*
 * SELinux interface to the NetLabel subsystem
 *
 * Author: Paul Moore <paul@paul-moore.com>
 *
 */

/*
 * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
 *
 * This program is free software;  you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY;  without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 * the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program;  if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#ifndef _SELINUX_NETLABEL_H_
#define _SELINUX_NETLABEL_H_

#include <linux/types.h>
#include <linux/fs.h>
#include <linux/net.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <net/request_sock.h>

#include "avc.h"
#include "objsec.h"

#ifdef CONFIG_NETLABEL
void selinux_netlbl_cache_invalidate(void);

void selinux_netlbl_err(struct sk_buff *skb, u16 family, int error,
			int gateway);

void selinux_netlbl_sk_security_free(struct sk_security_struct *sksec);
void selinux_netlbl_sk_security_reset(struct sk_security_struct *sksec);

int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
				 u16 family,
				 u32 *type,
				 u32 *sid);
int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
				 u16 family,
				 u32 sid);

int selinux_netlbl_inet_conn_request(struct request_sock *req, u16 family);
void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family);
int selinux_netlbl_socket_post_create(struct sock *sk, u16 family);
int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
				struct sk_buff *skb,
				u16 family,
				struct common_audit_data *ad);
int selinux_netlbl_socket_setsockopt(struct socket *sock,
				     int level,
				     int optname);
int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr);

#else
static inline void selinux_netlbl_cache_invalidate(void)
{
	return;
}

static inline void selinux_netlbl_err(struct sk_buff *skb,
				      u16 family,
				      int error,
				      int gateway)
{
	return;
}

static inline void selinux_netlbl_sk_security_free(
					       struct sk_security_struct *sksec)
{
	return;
}

static inline void selinux_netlbl_sk_security_reset(
					       struct sk_security_struct *sksec)
{
	return;
}

static inline int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
					       u16 family,
					       u32 *type,
					       u32 *sid)
{
	*type = NETLBL_NLTYPE_NONE;
	*sid = SECSID_NULL;
	return 0;
}
static inline int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
					       u16 family,
					       u32 sid)
{
	return 0;
}

static inline int selinux_netlbl_conn_setsid(struct sock *sk,
					     struct sockaddr *addr)
{
	return 0;
}

static inline int selinux_netlbl_inet_conn_request(struct request_sock *req,
						   u16 family)
{
	return 0;
}
static inline void selinux_netlbl_inet_csk_clone(struct sock *sk, u16 family)
{
	return;
}
static inline int selinux_netlbl_socket_post_create(struct sock *sk,
						    u16 family)
{
	return 0;
}
static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
					      struct sk_buff *skb,
					      u16 family,
					      struct common_audit_data *ad)
{
	return 0;
}
static inline int selinux_netlbl_socket_setsockopt(struct socket *sock,
						   int level,
						   int optname)
{
	return 0;
}
static inline int selinux_netlbl_socket_connect(struct sock *sk,
						struct sockaddr *addr)
{
	return 0;
}
#endif /* CONFIG_NETLABEL */

#endif
5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Tejun Heo &lt;tj@kernel.org&gt;</td><td class='right'>2017-01-26 16:47:28 -0500</td></tr>
<tr><th>committer</th><td>Tejun Heo &lt;tj@kernel.org&gt;</td><td class='right'>2017-01-26 16:47:28 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/dccp/ccids/lib/tfrc.c?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>07cd12945551b63ecb1a349d50a6d69d1d6feb4a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/dccp/ccids/lib/tfrc.c?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>75f65eba7eac9277971082a2d5a4cf1370562c0c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/dccp/ccids/lib/tfrc.c?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>net/dccp/ccids/lib/tfrc.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/dccp/ccids/lib/tfrc.c?id=7ce7d89f48834cefece7804d38fc5d85382edf77'>7ce7d89f48834cefece7804d38fc5d85382edf77</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/dccp/ccids/lib/tfrc.c?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a&amp;id2=7ce7d89f48834cefece7804d38fc5d85382edf77'>diff</a>)</td></tr></table>
<div class='commit-subject'>cgroup: don't online subsystems before cgroup_name/path() are operational</div><div class='commit-msg'>While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out
cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems
before the new cgroup is associated with it kernfs_node.  This is fine
for cgroup proper but cgroup_name/path() depend on the associated
kernfs_node and if a subsystem makes the new cgroup_subsys_state
visible, which they're allowed to after onlining, it can lead to NULL
dereference.

The current code performs cgroup creation and subsystem onlining in
cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems
visible afterwards.  There's no reason to online the subsystems early
and we can simply drop cgroup_apply_control_enable() call from
cgroup_create() so that the subsystems are onlined and made visible at
the same time.

Signed-off-by: Tejun Heo &lt;tj@kernel.org&gt;
Reported-by: Konstantin Khlebnikov &lt;khlebnikov@yandex-team.ru&gt;
Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") 
Cc: stable@vger.kernel.org # v4.6+
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>Diffstat</a> (limited to 'net/dccp/ccids/lib/tfrc.c')</div><table summary='diffstat' class='diffstat'>