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cfg80211: implement cfg80211_get_station cfg80211 API

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Implement and export the new cfg80211_get_station() API.
This utility can be used by other kernel modules to obtain
detailed information about a given wireless station.

It will be in particular useful to batman-adv which will
implement a wireless rate based metric.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Antonio Quartulli
2014-05-19 21:53:21 +02:00
committed by Johannes Berg
parent cca674d47e
commit 7406353d43
3 changed files with 32 additions and 1 deletions
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net/wireless/util.c
+18
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@@ -1546,6 +1546,24 @@ unsigned int ieee80211_get_num_supported_channels(struct wiphy *wiphy)
}
EXPORT_SYMBOL(ieee80211_get_num_supported_channels);
int cfg80211_get_station(struct net_device *dev, const u8 *mac_addr,
struct station_info *sinfo)
{
struct cfg80211_registered_device *rdev;
struct wireless_dev *wdev;
wdev = dev->ieee80211_ptr;
if (!wdev)
return -EOPNOTSUPP;
rdev = wiphy_to_rdev(wdev->wiphy);
if (!rdev->ops->get_station)
return -EOPNOTSUPP;
return rdev_get_station(rdev, dev, mac_addr, sinfo);
}
EXPORT_SYMBOL(cfg80211_get_station);
/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
const unsigned char rfc1042_header[] __aligned(2) =