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cfg80211: add P2P Device abstraction

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In order to support using a different MAC address
for the P2P Device address we must first have a
P2P Device abstraction that can be assigned a MAC
address.

This abstraction will also be useful to support
offloading P2P operations to the device, e.g.
periodic listen for discoverability.

Currently, the driver is responsible for assigning
a MAC address to the P2P Device, but this could be
changed by allowing a MAC address to be given to
the NEW_INTERFACE command.

As it has no associated netdev, a P2P Device can
only be identified by its wdev identifier but the
previous patches allowed using the wdev identifier
in various APIs, e.g. remain-on-channel.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-06-16 00:19:54 +02:00
parent cc74c0c7d6
commit 98104fdeda
9 changed files with 265 additions and 20 deletions
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7
net/wireless/chan.c
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@ -105,7 +105,7 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
ASSERT_WDEV_LOCK(wdev);
if (!netif_running(wdev->netdev))
if (wdev->netdev && !netif_running(wdev->netdev))
return;
switch (wdev->iftype) {
@ -143,6 +143,11 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
case NL80211_IFTYPE_WDS:
/* these interface types don't really have a channel */
return;
case NL80211_IFTYPE_P2P_DEVICE:
if (wdev->wiphy->features &
NL80211_FEATURE_P2P_DEVICE_NEEDS_CHANNEL)
*chanmode = CHAN_MODE_EXCLUSIVE;
return;
case NL80211_IFTYPE_UNSPECIFIED:
case NUM_NL80211_IFTYPES:
WARN_ON(1);