cfg80211: add P2P Device abstraction

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>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index fbab7a84ca21..366d9d3e84c4 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -449,6 +449,7 @@ static int ieee80211_do_open(struct net_device *dev, bool coming_up)
         case NUM_NL80211_IFTYPES:
         case NL80211_IFTYPE_P2P_CLIENT:
         case NL80211_IFTYPE_P2P_GO:
+        case NL80211_IFTYPE_P2P_DEVICE:
                 /* cannot happen */
                 WARN_ON(1);
                 break;
@@ -1146,6 +1147,8 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
         case NL80211_IFTYPE_WDS:
         case NL80211_IFTYPE_AP_VLAN:
                 break;
+        case NL80211_IFTYPE_P2P_DEVICE:
+                /* not yet supported */
         case NL80211_IFTYPE_UNSPECIFIED:
         case NUM_NL80211_IFTYPES:
                 BUG();