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// SPDX-License-Identifier: GPL-2.0-only
/*
* OCB mode implementation
*
* Copyright: (c) 2014 Czech Technical University in Prague
* (c) 2014 Volkswagen Group Research
* Copyright (C) 2022 Intel Corporation
* Author: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
* Funded by: Volkswagen Group Research
*/
#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->u.ocb.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->u.ocb.chandef, 0, sizeof(wdev->u.ocb.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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