Add credstore system daemon.
The credstore system daemon is sitting below the Identity Credential
Framework APIs and on top of the Identity Credential HALs. Its main
job is to store credential data and provide a way for applications to
communicate with the secure hardware abstracted by the HAL.
This daemon runs as an unprivileged user, credstore.
The auth-tokens needed by credstore are supplied by keystore and this
CL includes the requisite changes to keystore for this to work.
Bug: 111446262
Test: CTS tests for Framework APIs
Change-Id: Ieb4d59852a143482436a1c418c25ed96e25c0047
diff --git a/identity/WritableCredential.h b/identity/WritableCredential.h
new file mode 100644
index 0000000..47987ce
--- /dev/null
+++ b/identity/WritableCredential.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2019, 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.
+ */
+
+#ifndef SYSTEM_SECURITY_WRITABLE_CREDENTIAL_H_
+#define SYSTEM_SECURITY_WRITABLE_CREDENTIAL_H_
+
+#include <string>
+#include <vector>
+
+#include <android/security/identity/BnWritableCredential.h>
+
+#include <android/hardware/identity/1.0/IIdentityCredentialStore.h>
+#include <android/hardware/identity/1.0/types.h>
+
+namespace android {
+namespace security {
+namespace identity {
+
+using ::android::binder::Status;
+using ::android::hardware::identity::V1_0::IWritableIdentityCredential;
+using ::std::string;
+using ::std::vector;
+
+class WritableCredential : public BnWritableCredential {
+ public:
+ WritableCredential(const string& dataPath, const string& credentialName, const string& docType,
+ size_t dataChunkSize, sp<IWritableIdentityCredential> halBinder);
+ ~WritableCredential();
+
+ // IWritableCredential overrides
+ Status getCredentialKeyCertificateChain(const vector<uint8_t>& challenge,
+ vector<uint8_t>* _aidl_return) override;
+
+ Status personalize(const vector<AccessControlProfileParcel>& accessControlProfiles,
+ const vector<EntryNamespaceParcel>& entryNamespaces, int64_t secureUserId,
+ vector<uint8_t>* _aidl_return) override;
+
+ private:
+ string dataPath_;
+ string credentialName_;
+ size_t dataChunkSize_;
+ sp<IWritableIdentityCredential> halBinder_;
+ vector<uint8_t> attestationCertificate_;
+
+ Status ensureAttestationCertificateExists(const vector<uint8_t>& challenge);
+};
+
+} // namespace identity
+} // namespace security
+} // namespace android
+
+#endif // SYSTEM_SECURITY_WRITABLE_CREDENTIAL_H_