mac80211: send HT/VHT IEs in TDLS discovery response

These are mandated by IEEE802.11-2012 section 8.5.8.6 and IEEE802.11ac-2013
section 8.5.8.16.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 79ed59acf0d4..fff0d864adfa 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -378,7 +378,9 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
         sband = local->hw.wiphy->bands[band];
         memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap));
 
-        if (action_code == WLAN_TDLS_SETUP_REQUEST && ht_cap.ht_supported) {
+        if ((action_code == WLAN_TDLS_SETUP_REQUEST ||
+             action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) &&
+            ht_cap.ht_supported) {
                 ieee80211_apply_htcap_overrides(sdata, &ht_cap);
 
                 /* disable SMPS in TDLS initiator */
@@ -432,11 +434,14 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
 
         /* build the VHT-cap similarly to the HT-cap */
         memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap));
-        if (action_code == WLAN_TDLS_SETUP_REQUEST && vht_cap.vht_supported) {
+        if ((action_code == WLAN_TDLS_SETUP_REQUEST ||
+             action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) &&
+            vht_cap.vht_supported) {
                 ieee80211_apply_vhtcap_overrides(sdata, &vht_cap);
 
                 /* the AID is present only when VHT is implemented */
-                ieee80211_tdls_add_aid(sdata, skb);
+                if (action_code == WLAN_TDLS_SETUP_REQUEST)
+                        ieee80211_tdls_add_aid(sdata, skb);
 
                 pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
                 ieee80211_ie_build_vht_cap(pos, &vht_cap, vht_cap.cap);