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6e0bd6c3 RL |
1 | /* |
2 | * OCB mode implementation | |
3 | * | |
4 | * Copyright: (c) 2014 Czech Technical University in Prague | |
5 | * (c) 2014 Volkswagen Group Research | |
6 | * Author: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz> | |
7 | * Funded by: Volkswagen Group Research | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/ieee80211.h> | |
15 | #include <net/cfg80211.h> | |
16 | #include "nl80211.h" | |
17 | #include "core.h" | |
18 | #include "rdev-ops.h" | |
19 | ||
20 | int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev, | |
21 | struct net_device *dev, | |
22 | struct ocb_setup *setup) | |
23 | { | |
24 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
25 | int err; | |
26 | ||
27 | ASSERT_WDEV_LOCK(wdev); | |
28 | ||
29 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_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 | ||
42 | int 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 | ||
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); | |
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 | ||
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); | |
86 | ||
87 | return err; | |
88 | } |