1 | // SPDX-License-Identifier: GPL-2.0-only |
---|---|
2 | /* |
3 | * OCB mode implementation |
4 | * |
5 | * Copyright: (c) 2014 Czech Technical University in Prague |
6 | * (c) 2014 Volkswagen Group Research |
7 | * Copyright (C) 2022-2023 Intel Corporation |
8 | * Author: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> |
9 | * Funded by: Volkswagen Group Research |
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 | lockdep_assert_wiphy(wdev->wiphy); |
26 | |
27 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) |
28 | return -EOPNOTSUPP; |
29 | |
30 | if (!rdev->ops->join_ocb) |
31 | return -EOPNOTSUPP; |
32 | |
33 | if (WARN_ON(!setup->chandef.chan)) |
34 | return -EINVAL; |
35 | |
36 | err = rdev_join_ocb(rdev, dev, setup); |
37 | if (!err) |
38 | wdev->u.ocb.chandef = setup->chandef; |
39 | |
40 | return err; |
41 | } |
42 | |
43 | int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev, |
44 | struct net_device *dev) |
45 | { |
46 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
47 | int err; |
48 | |
49 | lockdep_assert_wiphy(wdev->wiphy); |
50 | |
51 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) |
52 | return -EOPNOTSUPP; |
53 | |
54 | if (!rdev->ops->leave_ocb) |
55 | return -EOPNOTSUPP; |
56 | |
57 | if (!wdev->u.ocb.chandef.chan) |
58 | return -ENOTCONN; |
59 | |
60 | err = rdev_leave_ocb(rdev, dev); |
61 | if (!err) |
62 | memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef)); |
63 | |
64 | return err; |
65 | } |
66 |