libsodium: Update library to v1.0.18

components/libsodium/port/randombytes_internal.h

@@ -0,0 +1,28 @@
+// Copyright 2017 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.
+#pragma once
+
+# include "export.h"
+# include "randombytes.h"
+
+SODIUM_EXPORT
+extern const struct randombytes_implementation randombytes_esp32_implementation;
+
+/* Defining RANDOMBYTES_DEFAULT_IMPLEMENTATION here allows us to compile with the ESP32 hardware
+   implementation as the default. No need to call randombytes_set_implementation().
+
+   Doing it in the header like this is easier than passing it via a -D argument to gcc.
+*/
+#undef RANDOMBYTES_DEFAULT_IMPLEMENTATION
+#define RANDOMBYTES_DEFAULT_IMPLEMENTATION &randombytes_esp32_implementation