[PATCH v3 03/11] wifi: cfg80211: nan: check Rx registration for NAN beacons

[Ilan Peer <ilan.peer@intel.com>]

Instant Communication requires user space to track the NAN beacons, so
fail device registration when the device declares NAN Device support
for Instant Communication but doesn't support Rx registration for
beacon frames.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
 net/wireless/core.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 9176659345f0..45a1709cffe7 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -969,6 +969,13 @@ int wiphy_register(struct wiphy *wiphy)
 		      WIPHY_NAN_FLAGS_CONFIGURABLE_SYNC)))
 		return -EINVAL;
 
+	/* Instant Communication requires user space to track NAN beacons */
+	if (WARN_ON((wiphy->nan_capa.flags & WIPHY_NAN_FLAGS_INSTANT_COMM) &&
+		    (!wiphy->mgmt_stypes ||
+		     !(wiphy->mgmt_stypes[NL80211_IFTYPE_NAN].rx &
+		       BIT(IEEE80211_STYPE_BEACON >> 4)))))
+		return -EINVAL;
+
 	if (WARN_ON(wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)))
 		return -EINVAL;
 
-- 
2.55.0