esp_example: Enable MbedTLS for DPP enrollee by default

components/wpa_supplicant/CMakeLists.txt

@@ -5,7 +5,6 @@ set(srcs "port/os_xtensa.c"
     "src/ap/wpa_auth_ie.c"
     "src/common/sae.c"
     "src/common/wpa_common.c"
-    "src/common/dpp.c"
     "src/utils/bitfield.c"
     "src/crypto/aes-siv.c"
     "src/crypto/sha256-kdf.c"
@@ -158,7 +157,14 @@ else()
     set(roaming_src "")
 endif()
 
-idf_component_register(SRCS "${srcs}" "${tls_src}" "${roaming_src}" "${crypto_src}"
+if(CONFIG_WPA_DPP_SUPPORT)
+    set(dpp_src "src/common/dpp.c"
+    "esp_supplicant/src/esp_dpp.c")
+else()
+    set(dpp_src "")
+endif()
+
+idf_component_register(SRCS "${srcs}" "${tls_src}" "${roaming_src}" "${crypto_src}" "${dpp_src}"
                     INCLUDE_DIRS include port/include include/esp_supplicant
                     PRIV_INCLUDE_DIRS src src/utils
                     PRIV_REQUIRES mbedtls esp_timer)
@@ -183,7 +189,6 @@ target_compile_definitions(${COMPONENT_LIB} PRIVATE
     CONFIG_ECC
     CONFIG_IEEE80211W
     CONFIG_SHA256
-    CONFIG_DPP
     CONFIG_WNM
     )
 
@@ -193,5 +198,7 @@ endif()
 if(CONFIG_WPA_WPS_STRICT)
     target_compile_definitions(${COMPONENT_LIB} PRIVATE CONFIG_WPS_STRICT)
 endif()
-
+if(CONFIG_WPA_DPP_SUPPORT)
+    target_compile_definitions(${COMPONENT_LIB} PRIVATE CONFIG_DPP)
+endif()
 set_property(TARGET ${COMPONENT_LIB} APPEND PROPERTY LINK_INTERFACE_MULTIPLICITY 3)

components/wpa_supplicant/Kconfig

@@ -38,8 +38,8 @@ menu "Supplicant"
             rigorously. Disabling this add the workaorunds with various APs.
             Enabling this may cause inter operability issues with some APs.
 
-    menuconfig WPA_11KV_SUPPORT
-        bool "Enable 802.11k, 802.11v APIs handling in supplicant"
+    config WPA_11KV_SUPPORT
+        bool "Enable 802.11k, 802.11v APIs handling"
         default n
         help
             Select this option to enable 802.11k 802.11v APIs(RRM and BTM support).
@@ -54,12 +54,19 @@ menu "Supplicant"
             and on the radio environment. Current implementation adds beacon report,
             link measurement, neighbor report.
 
-    if WPA_11KV_SUPPORT
     config WPA_SCAN_CACHE
         bool "Keep scan results in cache"
+        depends on WPA_11KV_SUPPORT
         default n
         help
             Keep scan results in cache, if not enabled, those
             will be flushed immediately.
-    endif
+
+    config WPA_DPP_SUPPORT
+        bool "Enable DPP support"
+        default n
+        select WPA_MBEDTLS_CRYPTO
+        help
+            Select this option to enable WiFi Easy Connect Support.
+
 endmenu

components/wpa_supplicant/include/esp_supplicant/esp_dpp.h

@@ -1,16 +1,8 @@
-// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #ifndef ESP_DPP_H
 #define ESP_DPP_H

components/wpa_supplicant/src/esp_supplicant/esp_dpp.c

@@ -1,16 +1,8 @@
-// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include "esp_dpp_i.h"
 #include "esp_dpp.h"
@@ -20,6 +12,7 @@
 #include "esp_wifi.h"
 #include "common/ieee802_11_defs.h"
 
+#ifdef CONFIG_DPP
 static void *s_dpp_task_hdl = NULL;
 static void *s_dpp_evt_queue = NULL;
 static void *s_dpp_api_lock = NULL;
@@ -676,3 +669,4 @@ void esp_supp_dpp_deinit(void)
     dpp_global_deinit(s_dpp_ctx.dpp_global);
     esp_dpp_post_evt(SIG_DPP_DEL_TASK, 0);
 }
+#endif

examples/wifi/wifi_easy_connect/dpp-enrollee/sdkconfig.defaults

@@ -0,0 +1 @@
+CONFIG_WPA_DPP_SUPPORT=y