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, 31 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 9c9c0c352873..995bf802d604 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -48,6 +48,7 @@
 #define NL80211_MULTICAST_GROUP_REG             "regulatory"
 #define NL80211_MULTICAST_GROUP_MLME            "mlme"
 #define NL80211_MULTICAST_GROUP_VENDOR          "vendor"
+#define NL80211_MULTICAST_GROUP_NAN             "nan"
 #define NL80211_MULTICAST_GROUP_TESTMODE        "testmode"
 
 /**
@@ -866,6 +867,9 @@
  *      must be operational (%NL80211_CMD_START_NAN was executed).
  *      It must contain at least one of the following attributes:
  *      %NL80211_ATTR_NAN_MASTER_PREF, %NL80211_ATTR_NAN_DUAL.
+ * @NL80211_CMD_NAN_FUNC_MATCH: Notification sent when a match is reported.
+ *      This will contain a %NL80211_ATTR_NAN_MATCH nested attribute and
+ *      %NL80211_ATTR_COOKIE.
  *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
@@ -1060,6 +1064,7 @@ enum nl80211_commands {
         NL80211_CMD_ADD_NAN_FUNCTION,
         NL80211_CMD_DEL_NAN_FUNCTION,
         NL80211_CMD_CHANGE_NAN_CONFIG,
+        NL80211_CMD_NAN_MATCH,
 
         /* add new commands above here */
 
@@ -1926,6 +1931,8 @@ enum nl80211_commands {
  * @NL80211_ATTR_NAN_FUNC: a function that can be added to NAN. See
  *      &enum nl80211_nan_func_attributes for description of this nested
  *      attribute.
+ * @NL80211_ATTR_NAN_MATCH: used to report a match. This is a nested attribute.
+ *      See &enum nl80211_nan_match_attributes.
  *
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
@@ -2324,6 +2331,7 @@ enum nl80211_attrs {
         NL80211_ATTR_NAN_MASTER_PREF,
         NL80211_ATTR_NAN_DUAL,
         NL80211_ATTR_NAN_FUNC,
+        NL80211_ATTR_NAN_MATCH,
 
         /* add attributes here, update the policy in nl80211.c */
 
@@ -5074,4 +5082,27 @@ enum nl80211_nan_srf_attributes {
         NL80211_NAN_SRF_ATTR_MAX = NUM_NL80211_NAN_SRF_ATTR - 1,
 };
 
+/**
+ * enum nl80211_nan_match_attributes - NAN match attributes
+ * @__NL80211_NAN_MATCH_INVALID: invalid
+ * @NL80211_NAN_MATCH_FUNC_LOCAL: the local function that had the
+ *      match. This is a nested attribute.
+ *      See &enum nl80211_nan_func_attributes.
+ * @NL80211_NAN_MATCH_FUNC_PEER: the peer function
+ *      that caused the match. This is a nested attribute.
+ *      See &enum nl80211_nan_func_attributes.
+ *
+ * @NUM_NL80211_NAN_MATCH_ATTR: internal
+ * @NL80211_NAN_MATCH_ATTR_MAX: highest NAN match attribute
+ */
+enum nl80211_nan_match_attributes {
+        __NL80211_NAN_MATCH_INVALID,
+        NL80211_NAN_MATCH_FUNC_LOCAL,
+        NL80211_NAN_MATCH_FUNC_PEER,
+
+        /* keep last */
+        NUM_NL80211_NAN_MATCH_ATTR,
+        NL80211_NAN_MATCH_ATTR_MAX = NUM_NL80211_NAN_MATCH_ATTR - 1
+};
+
 #endif /* __LINUX_NL80211_H */