| Rostislav Lisovy | 6e0bd6c | 2014-11-03 10:33:18 +0100 | [diff] [blame] | 1 | /* |
| 2 | * OCB mode implementation |
| 3 | * |
| 4 | * Copyright: (c) 2014 Czech Technical University in Prague |
| 5 | * (c) 2014 Volkswagen Group Research |
| 6 | * Author: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> |
| 7 | * Funded by: Volkswagen Group Research |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/ieee80211.h> |
| 15 | #include <net/cfg80211.h> |
| 16 | #include "nl80211.h" |
| 17 | #include "core.h" |
| 18 | #include "rdev-ops.h" |
| 19 | |
| 20 | int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev, |
| 21 | struct net_device *dev, |
| 22 | struct ocb_setup *setup) |
| 23 | { |
| 24 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 25 | int err; |
| 26 | |
| 27 | ASSERT_WDEV_LOCK(wdev); |
| 28 | |
| 29 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) |
| 30 | return -EOPNOTSUPP; |
| 31 | |
| Ola Olsson | 1b9df2d | 2015-11-09 22:02:09 +0100 | [diff] [blame] | 32 | if (!rdev->ops->join_ocb) |
| 33 | return -EOPNOTSUPP; |
| 34 | |
| Rostislav Lisovy | 6e0bd6c | 2014-11-03 10:33:18 +0100 | [diff] [blame] | 35 | if (WARN_ON(!setup->chandef.chan)) |
| 36 | return -EINVAL; |
| 37 | |
| 38 | err = rdev_join_ocb(rdev, dev, setup); |
| 39 | if (!err) |
| 40 | wdev->chandef = setup->chandef; |
| 41 | |
| 42 | return err; |
| 43 | } |
| 44 | |
| 45 | int cfg80211_join_ocb(struct cfg80211_registered_device *rdev, |
| 46 | struct net_device *dev, |
| 47 | struct ocb_setup *setup) |
| 48 | { |
| 49 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 50 | int err; |
| 51 | |
| 52 | wdev_lock(wdev); |
| 53 | err = __cfg80211_join_ocb(rdev, dev, setup); |
| 54 | wdev_unlock(wdev); |
| 55 | |
| 56 | return err; |
| 57 | } |
| 58 | |
| 59 | int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, |
| 60 | struct net_device *dev) |
| 61 | { |
| 62 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 63 | int err; |
| 64 | |
| 65 | ASSERT_WDEV_LOCK(wdev); |
| 66 | |
| 67 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) |
| 68 | return -EOPNOTSUPP; |
| 69 | |
| 70 | if (!rdev->ops->leave_ocb) |
| 71 | return -EOPNOTSUPP; |
| 72 | |
| 73 | err = rdev_leave_ocb(rdev, dev); |
| 74 | if (!err) |
| 75 | memset(&wdev->chandef, 0, sizeof(wdev->chandef)); |
| 76 | |
| 77 | return err; |
| 78 | } |
| 79 | |
| 80 | int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, |
| 81 | struct net_device *dev) |
| 82 | { |
| 83 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
| 84 | int err; |
| 85 | |
| 86 | wdev_lock(wdev); |
| 87 | err = __cfg80211_leave_ocb(rdev, dev); |
| 88 | wdev_unlock(wdev); |
| 89 | |
| 90 | return err; |
| 91 | } |