nl80211: Use per-scan request WPS IE

Replace the global set probe request IEs mechanism with a new nl80211
option for specifying vendor IEs for each scan request.

src/drivers/driver_nl80211.c

@@ -1120,36 +1120,6 @@ nla_put_failure:
 }
 
 
-static int wpa_driver_nl80211_set_probe_req_ie(void *priv, const u8 *ies,
-					       size_t ies_len)
-{
-	struct wpa_driver_nl80211_data *drv = priv;
-	struct nl_msg *msg;
-	int ret = -1;
-
-	msg = nlmsg_alloc();
-	if (!msg)
-		return -ENOMEM;
-
-	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
-		    NL80211_CMD_SET_MGMT_EXTRA_IE, 0);
-
-	NLA_PUT_U8(msg, NL80211_ATTR_MGMT_SUBTYPE, 4 /* ProbeReq */);
-	if (ies)
-		NLA_PUT(msg, NL80211_ATTR_IE, ies_len, ies);
-
-	ret = 0;
-
-	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
-
-	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
-	return ret;
-
-nla_put_failure:
-	return -ENOBUFS;
-}
-
-
 #ifdef CONFIG_CLIENT_MLME
 
 static int nl80211_set_vif(struct wpa_driver_nl80211_data *drv,
@@ -1714,6 +1684,11 @@ static int wpa_driver_nl80211_scan(void *priv,
 	if (params->num_ssids)
 		nla_put_nested(msg, NL80211_ATTR_SCAN_SSIDS, ssids);
 
+	if (params->extra_ies) {
+		NLA_PUT(msg, NL80211_ATTR_IE, params->extra_ies_len,
+			params->extra_ies);
+	}
+
 	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
 	msg = NULL;
 	if (ret) {
@@ -1727,9 +1702,9 @@ static int wpa_driver_nl80211_scan(void *priv,
 	timeout = 10;
 	if (drv->scan_complete_events) {
 		/*
-		 * The driver seems to deliver SIOCGIWSCAN events to notify
-		 * when scan is complete, so use longer timeout to avoid race
-		 * conditions with scanning and following association request.
+		 * The driver seems to deliver events to notify when scan is
+		 * complete, so use longer timeout to avoid race conditions
+		 * with scanning and following association request.
 		 */
 		timeout = 30;
 	}
@@ -2804,7 +2779,6 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.get_capa = wpa_driver_nl80211_get_capa,
 	.set_operstate = wpa_driver_nl80211_set_operstate,
 	.set_country = wpa_driver_nl80211_set_country,
-	.set_probe_req_ie = wpa_driver_nl80211_set_probe_req_ie,
 #ifdef CONFIG_CLIENT_MLME
 	.get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
 	.set_channel = wpa_driver_nl80211_set_channel,