cfg80211: provide a function to report a match for NAN

Provide a function the driver can call to report a match.
This will send the event to the user space.
If the NAN instance is tied to the owner, the notifications will be
sent to the socket that started the NAN interface only.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 8574a57e19ba..5481664b5389 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -5694,6 +5694,43 @@ wiphy_ext_feature_isset(struct wiphy *wiphy,
  */
 void cfg80211_free_nan_func(struct cfg80211_nan_func *f);
 
+/**
+ * struct cfg80211_nan_match_params - NAN match parameters
+ * @type: the type of the function that triggered a match. If it is
+ *	 %NL80211_NAN_FUNC_SUBSCRIBE it means that we replied to a subscriber.
+ *	 If it is %NL80211_NAN_FUNC_PUBLISH, it means that we got a discovery
+ *	 result.
+ *	 If it is %NL80211_NAN_FUNC_FOLLOW_UP, we received a follow up.
+ * @inst_id: the local instance id
+ * @peer_inst_id: the instance id of the peer's function
+ * @addr: the MAC address of the peer
+ * @info_len: the length of the &info
+ * @info: the Service Specific Info from the peer (if any)
+ * @cookie: unique identifier of the corresponding function
+ */
+struct cfg80211_nan_match_params {
+	enum nl80211_nan_function_type type;
+	u8 inst_id;
+	u8 peer_inst_id;
+	const u8 *addr;
+	u8 info_len;
+	const u8 *info;
+	u64 cookie;
+};
+
+/**
+ * cfg80211_nan_match - report a match for a NAN function.
+ * @wdev: the wireless device reporting the match
+ * @match: match notification parameters
+ * @gfp: allocation flags
+ *
+ * This function reports that the a NAN function had a match. This
+ * can be a subscribe that had a match or a solicited publish that
+ * was sent. It can also be a follow up that was received.
+ */
+void cfg80211_nan_match(struct wireless_dev *wdev,
+			struct cfg80211_nan_match_params *match, gfp_t gfp);
+
 /* ethtool helper */
 void cfg80211_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info);