| 1 | |
| 2 | |
| 3 | * OCB mode implementation
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| 4 | *
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| 5 | * Copyright: (c) 2014 Czech Technical University in Prague
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| 6 | * (c) 2014 Volkswagen Group Research
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| 7 | * Copyright (C) 2022-2023 Intel Corporation
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| 8 | * Author: Rostislav Lisovy <[email protected]>
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| 9 | * Funded by: Volkswagen Group Research
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| 10 |
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| 11 |
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| 12 | #include <linux/ieee80211.h>
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| 13 | #include <net/cfg80211.h>
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| 14 | #include "nl80211.h"
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| 15 | #include "core.h"
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| 16 | #include "rdev-ops.h"
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| 17 |
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| 18 | int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
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| 19 | struct net_device *dev,
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| 20 | struct ocb_setup *setup)
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| 21 | {
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| 22 | struct wireless_dev *wdev = dev->ieee80211_ptr;
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| 23 | int err;
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| 24 |
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| 25 | lockdep_assert_wiphy(wdev->wiphy);
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| 26 |
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| 27 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
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| 28 | return -EOPNOTSUPP;
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| 29 |
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| 30 | if (!rdev->ops->join_ocb)
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| 31 | return -EOPNOTSUPP;
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| 32 |
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| 33 | if (WARN_ON(!setup->chandef.chan))
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| 34 | return -EINVAL;
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| 35 |
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| 36 | err = rdev_join_ocb(rdev, dev, setup);
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| 37 | if (!err)
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| 38 | wdev->u.ocb.chandef = setup->chandef;
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| 39 |
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| 40 | return err;
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| 41 | }
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| 42 |
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| 43 | int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
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| 44 | struct net_device *dev)
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| 45 | {
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| 46 | struct wireless_dev *wdev = dev->ieee80211_ptr;
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| 47 | int err;
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| 48 |
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| 49 | lockdep_assert_wiphy(wdev->wiphy);
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| 50 |
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| 51 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
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| 52 | return -EOPNOTSUPP;
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| 53 |
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| 54 | if (!rdev->ops->leave_ocb)
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| 55 | return -EOPNOTSUPP;
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| 56 |
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| 57 | if (!wdev->u.ocb.chandef.chan)
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| 58 | return -ENOTCONN;
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| 59 |
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| 60 | err = rdev_leave_ocb(rdev, dev);
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| 61 | if (!err)
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| 62 | memset(&wdev->u.ocb.chandef, 0, sizeof(wdev->u.ocb.chandef));
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| 63 |
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| 64 | return err;
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| 65 | }
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