Define MACsec HAL and ref impl
Add MACsec HAL interface and reference implementation.
This allow OEM to store MACsec PSK key in secure storage and provide
functions to use that key,
Bug: 254108688
Test: atest VtsHalMacsecPSKPluginV1_0Test
Change-Id: Iecfe4828839a1dab81989bf9b178ae41c6f46b82
diff --git a/macsec/aidl/default/MacsecPskPlugin.h b/macsec/aidl/default/MacsecPskPlugin.h
new file mode 100644
index 0000000..0b056e3
--- /dev/null
+++ b/macsec/aidl/default/MacsecPskPlugin.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2023, The Android Open Source Project
+ *
+ * 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 <aidl/android/hardware/macsec/BnMacsecPskPlugin.h>
+
+#include <openssl/aes.h>
+#include <openssl/cmac.h>
+
+namespace aidl::android::hardware::macsec {
+
+struct keys {
+ std::vector<uint8_t> keyId;
+ AES_KEY kekEncCtx;
+ AES_KEY kekDecCtx;
+ CMAC_CTX* ickCtx;
+ CMAC_CTX* cakCtx;
+};
+
+class MacsecPskPlugin : public BnMacsecPskPlugin {
+ public:
+ MacsecPskPlugin();
+ ~MacsecPskPlugin();
+ ndk::ScopedAStatus addTestKey(const std::vector<uint8_t>& keyId,
+ const std::vector<uint8_t>& CAK,
+ const std::vector<uint8_t>& CKN) override;
+ ndk::ScopedAStatus calcIcv(const std::vector<uint8_t>& keyId, const std::vector<uint8_t>& data,
+ std::vector<uint8_t>* out) override;
+
+ ndk::ScopedAStatus generateSak(const std::vector<uint8_t>& keyId,
+ const std::vector<uint8_t>& data, const int sakLength,
+ std::vector<uint8_t>* out);
+
+ ndk::ScopedAStatus wrapSak(const std::vector<uint8_t>& keyId, const std::vector<uint8_t>& sak,
+ std::vector<uint8_t>* out) override;
+
+ ndk::ScopedAStatus unwrapSak(const std::vector<uint8_t>& keyId, const std::vector<uint8_t>& sak,
+ std::vector<uint8_t>* out) override;
+
+ private:
+ std::vector<struct keys> mKeys;
+};
+} // namespace aidl::android::hardware::macsec