cfg80211: Provide an API to report NAN function termination

Provide a function that reports NAN DE function termination. The function
may be terminated due to one of the following reasons: user request,
ttl expiration or failure.
If the NAN instance is tied to the owner, the notification 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, 18 insertions, 0 deletions

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 995bf802d604..56368e9b4622 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -863,6 +863,9 @@
  *      the response to this command.
  *      Look at %NL80211_ATTR_SOCKET_OWNER as well.
  * @NL80211_CMD_DEL_NAN_FUNCTION: Delete a NAN function by cookie.
+ *      This command is also used as a notification sent when a NAN function is
+ *      terminated. This will contain a %NL80211_ATTR_NAN_FUNC_INST_ID
+ *      and %NL80211_ATTR_COOKIE attributes.
  * @NL80211_CMD_CHANGE_NAN_CONFIG: Change current NAN configuration. NAN
  *      must be operational (%NL80211_CMD_START_NAN was executed).
  *      It must contain at least one of the following attributes:
@@ -4985,6 +4988,21 @@ enum nl80211_nan_publish_type {
         NL80211_NAN_UNSOLICITED_PUBLISH = 1 << 1,
 };
 
+/**
+ * enum nl80211_nan_func_term_reason - NAN functions termination reason
+ *
+ * Defines termination reasons of a NAN function
+ *
+ * @NL80211_NAN_FUNC_TERM_REASON_USER_REQUEST: requested by user
+ * @NL80211_NAN_FUNC_TERM_REASON_TTL_EXPIRED: timeout
+ * @NL80211_NAN_FUNC_TERM_REASON_ERROR: errored
+ */
+enum nl80211_nan_func_term_reason {
+        NL80211_NAN_FUNC_TERM_REASON_USER_REQUEST,
+        NL80211_NAN_FUNC_TERM_REASON_TTL_EXPIRED,
+        NL80211_NAN_FUNC_TERM_REASON_ERROR,
+};
+
 #define NL80211_NAN_FUNC_SERVICE_ID_LEN 6
 #define NL80211_NAN_FUNC_SERVICE_SPEC_INFO_MAX_LEN 0xff
 #define NL80211_NAN_FUNC_SRF_MAX_LEN 0xff