Commit 8e5a2636 authored by Ayala Beker's avatar Ayala Beker Committed by Johannes Berg
Browse files

wifi: iwlwifi: mvm: don't drop unencrypted MCAST frames 



MCAST frames are filtered out by the driver if we are not
authorized yet.
Fix it to filter out only protected frames.

Fixes: 147eb05f ("iwlwifi: mvm: always tell the firmware to accept MCAST frames in BSS")
Signed-off-by: default avatarAyala Beker <ayala.beker@intel.com>
Signed-off-by: default avatarGregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230413213309.9cedcc27db60.I8fb7057981392660da482dd215e85c15946d3f4b@changeid


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 5e31b3df

drivers/net/wireless/intel/iwlwifi/mvm/rx.c

+3 −2
Original line number Diff line number Diff line
@@ -383,9 +383,10 @@ void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi, 
		 * Don't even try to decrypt a MCAST frame that was received

		 * before the managed vif is authorized, we'd fail anyway.

		 */

		if (vif->type == NL80211_IFTYPE_STATION &&

		if (is_multicast_ether_addr(hdr->addr1) &&

		    vif->type == NL80211_IFTYPE_STATION &&

		    !mvmvif->authorized &&

		    is_multicast_ether_addr(hdr->addr1)) {

		    ieee80211_has_protected(hdr->frame_control)) {

			IWL_DEBUG_DROP(mvm, "MCAST before the vif is authorized\n");

			kfree_skb(skb);

			rcu_read_unlock();