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 * Copyright (C) 2022 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	ASSERT_WDEV_LOCK(wdev);
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_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
57int __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)
73		memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef));
74
75	return err;
76}
77
78int 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}