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
18int 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
43int 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}

 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 * Author:    Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
 8 * Funded by: Volkswagen Group Research
 9 */
10
11#include <linux/ieee80211.h>
12#include <net/cfg80211.h>
13#include "nl80211.h"
14#include "core.h"
15#include "rdev-ops.h"
16
17int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
18			struct net_device *dev,
19			struct ocb_setup *setup)
20{
21	struct wireless_dev *wdev = dev->ieee80211_ptr;
22	int err;
23
24	ASSERT_WDEV_LOCK(wdev);
25
26	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
27		return -EOPNOTSUPP;
28
29	if (!rdev->ops->join_ocb)
30		return -EOPNOTSUPP;
31
32	if (WARN_ON(!setup->chandef.chan))
33		return -EINVAL;
34
35	err = rdev_join_ocb(rdev, dev, setup);
36	if (!err)
37		wdev->chandef = setup->chandef;
38
39	return err;
40}
41
42int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
43		      struct net_device *dev,
44		      struct ocb_setup *setup)
45{
46	struct wireless_dev *wdev = dev->ieee80211_ptr;
47	int err;
48
49	wdev_lock(wdev);
50	err = __cfg80211_join_ocb(rdev, dev, setup);
51	wdev_unlock(wdev);
52
53	return err;
54}
55
56int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
57			 struct net_device *dev)
58{
59	struct wireless_dev *wdev = dev->ieee80211_ptr;
60	int err;
61
62	ASSERT_WDEV_LOCK(wdev);
63
64	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
65		return -EOPNOTSUPP;
66
67	if (!rdev->ops->leave_ocb)
68		return -EOPNOTSUPP;
69
 
 
 
70	err = rdev_leave_ocb(rdev, dev);
71	if (!err)
72		memset(&wdev->chandef, 0, sizeof(wdev->chandef));
73
74	return err;
75}
76
77int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
78		       struct net_device *dev)
79{
80	struct wireless_dev *wdev = dev->ieee80211_ptr;
81	int err;
82
83	wdev_lock(wdev);
84	err = __cfg80211_leave_ocb(rdev, dev);
85	wdev_unlock(wdev);
86
87	return err;
88}