projects / linux-2.6-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 | |
| 076fc877 | 7 | * Copyright (C) 2022-2023 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 | ||
| 076fc877 JB |
18 | int cfg80211_join_ocb(struct cfg80211_registered_device *rdev, |
| 19 | struct net_device *dev, | |
| 20 | struct ocb_setup *setup) | |
| 6e0bd6c3 RL |
21 | { |
| 22 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
| 23 | int err; | |
| 24 | ||
| 076fc877 | 25 | lockdep_assert_wiphy(wdev->wiphy); |
| 6e0bd6c3 RL |
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 | ||
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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 | ||
| 076fc877 JB |
43 | int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, |
| 44 | struct net_device *dev) | |
| 6e0bd6c3 RL |
45 | { |
| 46 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
| 47 | int err; | |
| 48 | ||
| 076fc877 | 49 | lockdep_assert_wiphy(wdev->wiphy); |
| 6e0bd6c3 RL |
50 | |
| 51 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) | |
| 52 | return -EOPNOTSUPP; | |
| 53 | ||
| 54 | if (!rdev->ops->leave_ocb) | |
| 55 | return -EOPNOTSUPP; | |
| 56 | ||
| abc76cf5 JB |
57 | if (!wdev->u.ocb.chandef.chan) |
| 58 | return -ENOTCONN; | |
| 59 | ||
| 6e0bd6c3 RL |
60 | err = rdev_leave_ocb(rdev, dev); |
| 61 | if (!err) | |
| 7b0a0e3c | 62 | memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef)); |
| 6e0bd6c3 RL |
63 | |
| 64 | return err; | |
| 65 | } |