projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 6e0bd6c3 RL |
2 | /* |
| 3 | * OCB mode implementation | |
| 4 | * | |
| 5 | * Copyright: (c) 2014 Czech Technical University in Prague | |
| 6 | * (c) 2014 Volkswagen Group Research | |
| 7b0a0e3c | 7 | * Copyright (C) 2022 Intel Corporation |
| 6e0bd6c3 RL |
8 | * Author: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> |
| 9 | * Funded by: Volkswagen Group Research | |
| 6e0bd6c3 RL |
10 | */ |
| 11 | ||
| 12 | #include <linux/ieee80211.h> | |
| 13 | #include <net/cfg80211.h> | |
| 14 | #include "nl80211.h" | |
| 15 | #include "core.h" | |
| 16 | #include "rdev-ops.h" | |
| 17 | ||
| 18 | int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev, | |
| 19 | struct net_device *dev, | |
| 20 | struct ocb_setup *setup) | |
| 21 | { | |
| 22 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
| 23 | int err; | |
| 24 | ||
| 25 | ASSERT_WDEV_LOCK(wdev); | |
| 26 | ||
| 27 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) | |
| 28 | return -EOPNOTSUPP; | |
| 29 | ||
| 1b9df2d2 OO |
30 | if (!rdev->ops->join_ocb) |
| 31 | return -EOPNOTSUPP; | |
| 32 | ||
| 6e0bd6c3 RL |
33 | if (WARN_ON(!setup->chandef.chan)) |
| 34 | return -EINVAL; | |
| 35 | ||
| 36 | err = rdev_join_ocb(rdev, dev, setup); | |
| 37 | if (!err) | |
| 7b0a0e3c | 38 | wdev->u.ocb.chandef = setup->chandef; |
| 6e0bd6c3 RL |
39 | |
| 40 | return err; | |
| 41 | } | |
| 42 | ||
| 43 | int cfg80211_join_ocb(struct cfg80211_registered_device *rdev, | |
| 44 | struct net_device *dev, | |
| 45 | struct ocb_setup *setup) | |
| 46 | { | |
| 47 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
| 48 | int err; | |
| 49 | ||
| 50 | wdev_lock(wdev); | |
| 51 | err = __cfg80211_join_ocb(rdev, dev, setup); | |
| 52 | wdev_unlock(wdev); | |
| 53 | ||
| 54 | return err; | |
| 55 | } | |
| 56 | ||
| 57 | int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, | |
| 58 | struct net_device *dev) | |
| 59 | { | |
| 60 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
| 61 | int err; | |
| 62 | ||
| 63 | ASSERT_WDEV_LOCK(wdev); | |
| 64 | ||
| 65 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) | |
| 66 | return -EOPNOTSUPP; | |
| 67 | ||
| 68 | if (!rdev->ops->leave_ocb) | |
| 69 | return -EOPNOTSUPP; | |
| 70 | ||
| 71 | err = rdev_leave_ocb(rdev, dev); | |
| 72 | if (!err) | |
| 7b0a0e3c | 73 | memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef)); |
| 6e0bd6c3 RL |
74 | |
| 75 | return err; | |
| 76 | } | |
| 77 | ||
| 78 | int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, | |
| 79 | struct net_device *dev) | |
| 80 | { | |
| 81 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
| 82 | int err; | |
| 83 | ||
| 84 | wdev_lock(wdev); | |
| 85 | err = __cfg80211_leave_ocb(rdev, dev); | |
| 86 | wdev_unlock(wdev); | |
| 87 | ||
| 88 | return err; | |
| 89 | } |