eth: added cert for download test

components/esp_eth/test/CMakeLists.txt

@@ -1,4 +1,4 @@
 idf_component_register(SRC_DIRS .
                        PRIV_INCLUDE_DIRS .
                        PRIV_REQUIRES cmock test_utils esp_eth esp_http_client
-                      )
+                       EMBED_TXTFILES dl_espressif_com_root_cert.pem)

components/esp_eth/test/component.mk

@@ -5,3 +5,5 @@
 COMPONENT_SRCDIRS := .
 
 COMPONENT_ADD_LDFLAGS = -Wl,--whole-archive -l$(COMPONENT_NAME) -Wl,--no-whole-archive
+
+COMPONENT_EMBED_TXTFILES := dl_espressif_com_root_cert.pem

components/esp_eth/test/dl_espressif_com_root_cert.pem

@@ -0,0 +1,26 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

components/esp_eth/test/test_emac.c

@@ -37,6 +37,9 @@ static const char *TAG = "esp32_eth_test";
 
 #define TEST_ICMP_DESTINATION_DOMAIN_NAME "127.0.0.1"
 
+extern const char dl_espressif_com_root_cert_pem_start[] asm("_binary_dl_espressif_com_root_cert_pem_start");
+extern const char dl_espressif_com_root_cert_pem_end[]   asm("_binary_dl_espressif_com_root_cert_pem_end");
+
 // compute md5 of download file
 static md5_context_t md5_context;
 static uint8_t digest[16];
@@ -432,6 +435,7 @@ static void eth_download_task(void *param)
     esp_rom_md5_init(&md5_context);
     esp_http_client_config_t config = {
         .url = "https://dl.espressif.com/dl/misc/2MB.bin",
+        .cert_pem = dl_espressif_com_root_cert_pem_start,
         .event_handler = http_event_handle,
         .buffer_size = 5120
     };