| /* |
| * 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; |
| } |