diff options
Diffstat (limited to 'net/wireless/ocb.c')
-rw-r--r-- | net/wireless/ocb.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/net/wireless/ocb.c b/net/wireless/ocb.c new file mode 100644 index 000000000..29afaf3da --- /dev/null +++ b/net/wireless/ocb.c @@ -0,0 +1,92 @@ +// 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; + + if (!wdev->u.ocb.chandef.chan) + return -ENOTCONN; + + 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; +} |