cfg80211: 802.11p OCB mode handling

This patch adds new iface type (NL80211_IFTYPE_OCB) representing
the OCB (Outside the Context of a BSS) mode.
When establishing a connection to the network a cfg80211_join_ocb
function is called (particular nl80211_command is added as well).
A mandatory parameters during the ocb_join operation are 'center
frequency' and 'channel width (5/10 MHz)'.

Changes done in mac80211 are minimal possible required to avoid
many warnings (warning: enumeration value 'NL80211_IFTYPE_OCB'
not handled in switch) during compilation. Full functionality
(where needed) is added in the following patch.

Signed-off-by: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f7daae59248e..9b3025e4377a 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -746,6 +746,11 @@
  *      destination %NL80211_ATTR_MAC on the interface identified by
  *      %NL80211_ATTR_IFINDEX.
  *
+ * @NL80211_CMD_JOIN_OCB: Join the OCB network. The center frequency and
+ *      bandwidth of a channel must be given.
+ * @NL80211_CMD_LEAVE_OCB: Leave the OCB network -- no special arguments, the
+ *      network is determined by the network interface.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -922,6 +927,9 @@ enum nl80211_commands {
 
         NL80211_CMD_GET_MPP,
 
+        NL80211_CMD_JOIN_OCB,
+        NL80211_CMD_LEAVE_OCB,
+
         /* add new commands above here */
 
         /* used to define NL80211_CMD_MAX below */
@@ -2074,6 +2082,8 @@ enum nl80211_attrs {
  *      and therefore can't be created in the normal ways, use the
  *      %NL80211_CMD_START_P2P_DEVICE and %NL80211_CMD_STOP_P2P_DEVICE
  *      commands to create and destroy one
+ * @NL80211_IF_TYPE_OCB: Outside Context of a BSS
+ *      This mode corresponds to the MIB variable dot11OCBActivated=true
  * @NL80211_IFTYPE_MAX: highest interface type number currently defined
  * @NUM_NL80211_IFTYPES: number of defined interface types
  *
@@ -2093,6 +2103,7 @@ enum nl80211_iftype {
         NL80211_IFTYPE_P2P_CLIENT,
         NL80211_IFTYPE_P2P_GO,
         NL80211_IFTYPE_P2P_DEVICE,
+        NL80211_IFTYPE_OCB,
 
         /* keep last */
         NUM_NL80211_IFTYPES,