RSN IBSS: RX GTK configuration with nl80211

This add preliminary code for setting the per-STA RX GTK for
RSN IBSS when nl80211 drivers. For some reason, this does not
seem to fully work, but at least driver_nl80211.c is now aware of
what kind of key is being set and the whatever is missing from
making this key configuration go through should be specific to
nl80211/cfg80211.

src/drivers/driver_nl80211.c

@@ -2576,6 +2576,12 @@ static int wpa_driver_nl80211_set_key(const char *ifname, void *priv,
 	{
 		wpa_printf(MSG_DEBUG, "   addr=" MACSTR, MAC2STR(addr));
 		NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+		if (alg != WPA_ALG_WEP && key_idx && !set_tx) {
+			wpa_printf(MSG_DEBUG, "   RSN IBSS RX GTK");
+			NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE,
+				    NL80211_KEYTYPE_GROUP);
+		}
 	}
 	NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
 	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);

wpa_supplicant/ibss_rsn.c

@@ -125,6 +125,8 @@ static int supp_set_key(void *ctx, enum wpa_alg alg,
 		}
 	}
 
+	if (is_broadcast_ether_addr(addr) && peer->addr)
+		addr = peer->addr;
 	return wpa_drv_set_key(peer->ibss_rsn->wpa_s, alg, addr, key_idx,
 			       set_tx, seq, seq_len, key, key_len);
 }
@@ -153,6 +155,12 @@ static void supp_cancel_auth_timeout(void *ctx)
 }
 
 
+static void supp_deauthenticate(void * ctx, int reason_code)
+{
+	wpa_printf(MSG_DEBUG, "SUPP: %s (TODO)", __func__);
+}
+
+
 int ibss_rsn_supp_init(struct ibss_rsn_peer *peer, const u8 *own_addr,
 		       const u8 *psk)
 {
@@ -170,6 +178,7 @@ int ibss_rsn_supp_init(struct ibss_rsn_peer *peer, const u8 *own_addr,
 	ctx->get_network_ctx = supp_get_network_ctx;
 	ctx->mlme_setprotection = supp_mlme_setprotection;
 	ctx->cancel_auth_timeout = supp_cancel_auth_timeout;
+	ctx->deauthenticate = supp_deauthenticate;
 	peer->supp = wpa_sm_init(ctx);
 	if (peer->supp == NULL) {
 		wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_init() failed");