DPP2: Comeback delay response for certificate in over TCP case

Send out the GAS Initial Response with comeback delay when Configurator
is operating over TCP.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>

diff --git a/src/common/dpp_tcp.c b/src/common/dpp_tcp.c
index 6b21b8102f300869806280dd04caa39f2be44a34..632cb4ccdcd46360f60a9fe0ca0ae05f1df2f097 100644 (file)
--- a/src/common/dpp_tcp.c
+++ b/src/common/dpp_tcp.c
@@ -1023,6 +1023,30 @@ static int dpp_controller_rx_gas_req(struct dpp_connection *conn, const u8 *msg,
                return -1;
 
        resp = dpp_conf_req_rx(auth, pos, slen);
+       if (!resp && auth->waiting_cert) {
+               wpa_printf(MSG_DEBUG, "DPP: Certificate not yet ready");
+               buf = wpabuf_alloc(4 + 18);
+               if (!buf)
+                       return -1;
+
+               wpabuf_put_be32(buf, 18);
+
+               wpabuf_put_u8(buf, WLAN_PA_GAS_INITIAL_RESP);
+               wpabuf_put_u8(buf, dialog_token);
+               wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
+               wpabuf_put_le16(buf, 500); /* GAS Comeback Delay */
+
+               dpp_write_adv_proto(buf);
+               wpabuf_put_le16(buf, 0); /* Query Response Length */
+
+               /* Send Config Response over TCP */
+               wpa_hexdump_buf(MSG_MSGDUMP, "DPP: Outgoing TCP message", buf);
+               wpabuf_free(conn->msg_out);
+               conn->msg_out_pos = 0;
+               conn->msg_out = buf;
+               dpp_tcp_send(conn);
+               return 0;
+       }
        if (!resp)
                return -1;