/*
 * OCB mode implementation
 *
 * Copyright: (c) 2014 Czech Technical University in Prague
 *            (c) 2014 Volkswagen Group Research
 * Author:    Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
 * Funded by: Volkswagen Group Research
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#include "nl80211.h"
#include "core.h"
#include "rdev-ops.h"

int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
			struct net_device *dev,
			struct ocb_setup *setup)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	ASSERT_WDEV_LOCK(wdev);

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
		return -EOPNOTSUPP;

	if (!rdev->ops->join_ocb)
		return -EOPNOTSUPP;

	if (WARN_ON(!setup->chandef.chan))
		return -EINVAL;

	err = rdev_join_ocb(rdev, dev, setup);
	if (!err)
		wdev->chandef = setup->chandef;

	return err;
}

int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
		      struct net_device *dev,
		      struct ocb_setup *setup)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	wdev_lock(wdev);
	err = __cfg80211_join_ocb(rdev, dev, setup);
	wdev_unlock(wdev);

	return err;
}

int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
			 struct net_device *dev)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	ASSERT_WDEV_LOCK(wdev);

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
		return -EOPNOTSUPP;

	if (!rdev->ops->leave_ocb)
		return -EOPNOTSUPP;

	err = rdev_leave_ocb(rdev, dev);
	if (!err)
		memset(&wdev->chandef, 0, sizeof(wdev->chandef));

	return err;
}

int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
		       struct net_device *dev)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	wdev_lock(wdev);
	err = __cfg80211_leave_ocb(rdev, dev);
	wdev_unlock(wdev);

	return err;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=caa2858cd51c54fabd48c486b1b150ead539b872'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/net?id=caa2858cd51c54fabd48c486b1b150ead539b872'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/bridge?id=caa2858cd51c54fabd48c486b1b150ead539b872'>bridge</a>/<a href='/cgit.cgi/linux/net-next.git/log/net/bridge/br_netlink_tunnel.c?id=caa2858cd51c54fabd48c486b1b150ead539b872'>br_netlink_tunnel.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/net/bridge/br_netlink_tunnel.c?id=caa2858cd51c54fabd48c486b1b150ead539b872&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2017-02-08 14:39:19 -0500'>2017-02-08</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_netlink_tunnel.c?id=8ef9594764617e3fd4500205b080b53c45c14c4b'>bridge: vlan tunnel id info range fill size calc cleanups</a></td><td>Roopa Prabhu</td><td>1</td><td><span class='deletions'>-18</span>/<span class='insertions'>+16</span></td></tr>
<tr><td><span title='2017-02-07 14:14:12 -0500'>2017-02-07</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_netlink_tunnel.c?id=a8cab863a75f2d353588d4c3c37dc37c77b96c83'>bridge: remove unnecessary check for vtbegin in br_fill_vlan_tinfo_range</a></td><td>Roopa Prabhu</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td><span title='2017-02-07 14:05:30 -0500'>2017-02-07</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_netlink_tunnel.c?id=bb580ad698aeb4e5455d701c228c50355f84c056'>bridge: tunnel: fix attribute checks in br_parse_vlan_tunnel_info</a></td><td>Nikolay Aleksandrov</td><td>1</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td><span title='2017-02-03 15:21:22 -0500'>2017-02-03</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/net/bridge/br_netlink_tunnel.c?id=efa5356b0d9753b9d7e63e41459eba106cce30f3'>bridge: per vlan dst_metadata netlink support</a></td><td>Roopa Prabhu</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+296</span></td></tr>