iwl4965: claim RSN IBSS support

Similar like other drivers including iwl3945, do not configure group
keys to the hardware (on Ad-Hoc mode) to make IBSS RSN work.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 509301a..d24eaf8 100644 (file)
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -5724,7 +5724,8 @@ il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length)
            BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
 
        hw->wiphy->flags |=
-           WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS;
+           WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS |
+           WIPHY_FLAG_IBSS_RSN;
 
        /*
         * For now, disable PS by default because it affects
@@ -5873,6 +5874,16 @@ il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
                return -EOPNOTSUPP;
        }
 
+       /*
+        * To support IBSS RSN, don't program group keys in IBSS, the
+        * hardware will then not attempt to decrypt the frames.
+        */
+       if (vif->type == NL80211_IFTYPE_ADHOC &&
+           !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+               D_MAC80211("leave - ad-hoc group key\n");
+               return -EOPNOTSUPP;
+       }
+
        sta_id = il_sta_id_or_broadcast(il, sta);
        if (sta_id == IL_INVALID_STATION)
                return -EINVAL;