From: Shaul Triebitz <shaul.triebitz@xxxxxxxxx>
For management frames sent by an AP interface, translate
the MLD addresses to LINK addresses (for an MLD AP).
AP (non-bufferable) management frames are sent via
the broadcast station so the translation cannot be
done by the firmware.
Signed-off-by: Shaul Triebitz <shaul.triebitz@xxxxxxxxx>
Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
---
.../net/wireless/intel/iwlwifi/mvm/mac80211.c | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 92567ab34b88..4c8ab1db1f19 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -722,6 +722,9 @@ void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
struct ieee80211_hdr *hdr = (void *)skb->data;
bool offchannel = IEEE80211_SKB_CB(skb)->flags &
IEEE80211_TX_CTL_TX_OFFCHAN;
+ u32 link_id = u32_get_bits(info->control.flags,
+ IEEE80211_TX_CTRL_MLO_LINK);
+ struct ieee80211_sta *tmp_sta = sta;
if (iwl_mvm_is_radio_killed(mvm)) {
IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
@@ -755,6 +758,25 @@ void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
}
}
+ if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
+ !ieee80211_is_probe_resp(hdr->frame_control)) {
+ /* translate MLD addresses to LINK addresses */
+ struct ieee80211_link_sta *link_sta =
+ rcu_dereference(tmp_sta->link[link_id]);
+ struct ieee80211_bss_conf *link_conf =
+ rcu_dereference(info->control.vif->link_conf[link_id]);
+ struct ieee80211_mgmt *mgmt;
+
+ if (WARN_ON(!link_sta || !link_conf))
+ goto drop;
+
+ /* if sta is NULL, the frame is a management frame */
+ mgmt = (void *)hdr;
+ memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
+ memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
+ memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
+ }
+
iwl_mvm_tx_skb(mvm, skb, sta);
return;
drop:
--
2.38.1
