1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* 2 /*
3 * OCB mode implementation 3 * OCB mode implementation
4 * 4 *
5 * Copyright: (c) 2014 Czech Technical Univers 5 * Copyright: (c) 2014 Czech Technical University in Prague
6 * (c) 2014 Volkswagen Group Resear 6 * (c) 2014 Volkswagen Group Research
7 * Copyright (C) 2022-2023 Intel Corporation <<
8 * Author: Rostislav Lisovy <rostislav.liso 7 * Author: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
9 * Funded by: Volkswagen Group Research 8 * Funded by: Volkswagen Group Research
10 */ 9 */
11 10
12 #include <linux/ieee80211.h> 11 #include <linux/ieee80211.h>
13 #include <net/cfg80211.h> 12 #include <net/cfg80211.h>
14 #include "nl80211.h" 13 #include "nl80211.h"
15 #include "core.h" 14 #include "core.h"
16 #include "rdev-ops.h" 15 #include "rdev-ops.h"
17 16
18 int cfg80211_join_ocb(struct cfg80211_register !! 17 int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
19 struct net_device *dev, !! 18 struct net_device *dev,
20 struct ocb_setup *setup) !! 19 struct ocb_setup *setup)
21 { 20 {
22 struct wireless_dev *wdev = dev->ieee8 21 struct wireless_dev *wdev = dev->ieee80211_ptr;
23 int err; 22 int err;
24 23
25 lockdep_assert_wiphy(wdev->wiphy); !! 24 ASSERT_WDEV_LOCK(wdev);
26 25
27 if (dev->ieee80211_ptr->iftype != NL80 26 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
28 return -EOPNOTSUPP; 27 return -EOPNOTSUPP;
29 28
30 if (!rdev->ops->join_ocb) 29 if (!rdev->ops->join_ocb)
31 return -EOPNOTSUPP; 30 return -EOPNOTSUPP;
32 31
33 if (WARN_ON(!setup->chandef.chan)) 32 if (WARN_ON(!setup->chandef.chan))
34 return -EINVAL; 33 return -EINVAL;
35 34
36 err = rdev_join_ocb(rdev, dev, setup); 35 err = rdev_join_ocb(rdev, dev, setup);
37 if (!err) 36 if (!err)
38 wdev->u.ocb.chandef = setup->c !! 37 wdev->chandef = setup->chandef;
39 38
40 return err; 39 return err;
41 } 40 }
42 41
43 int cfg80211_leave_ocb(struct cfg80211_registe !! 42 int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
44 struct net_device *dev) !! 43 struct net_device *dev,
>> 44 struct ocb_setup *setup)
45 { 45 {
46 struct wireless_dev *wdev = dev->ieee8 46 struct wireless_dev *wdev = dev->ieee80211_ptr;
47 int err; 47 int err;
48 48
49 lockdep_assert_wiphy(wdev->wiphy); !! 49 wdev_lock(wdev);
>> 50 err = __cfg80211_join_ocb(rdev, dev, setup);
>> 51 wdev_unlock(wdev);
>> 52
>> 53 return err;
>> 54 }
>> 55
>> 56 int __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);
50 63
51 if (dev->ieee80211_ptr->iftype != NL80 64 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
52 return -EOPNOTSUPP; 65 return -EOPNOTSUPP;
53 66
54 if (!rdev->ops->leave_ocb) 67 if (!rdev->ops->leave_ocb)
55 return -EOPNOTSUPP; 68 return -EOPNOTSUPP;
56 69
57 if (!wdev->u.ocb.chandef.chan) <<
58 return -ENOTCONN; <<
59 <<
60 err = rdev_leave_ocb(rdev, dev); 70 err = rdev_leave_ocb(rdev, dev);
61 if (!err) 71 if (!err)
62 memset(&wdev->u.ocb.chandef, 0 !! 72 memset(&wdev->chandef, 0, sizeof(wdev->chandef));
>> 73
>> 74 return err;
>> 75 }
>> 76
>> 77 int 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);
63 86
64 return err; 87 return err;
65 } 88 }
66 89
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