1 files changed, 196 insertions, 0 deletions
diff --git a/trusty/keymaster/TrustyKeymaster.cpp b/trusty/keymaster/TrustyKeymaster.cpp
new file mode 100644
index 000000000..7f5e87f71
--- /dev/null
+++ b/trusty/keymaster/TrustyKeymaster.cpp
@@ -0,0 +1,196 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#include <cutils/log.h>
+#include <keymaster/android_keymaster_messages.h>
+#include <keymaster/keymaster_configuration.h>
+#include <trusty_keymaster/TrustyKeymaster.h>
+#include <trusty_keymaster/ipc/trusty_keymaster_ipc.h>
+
+namespace keymaster {
+
+int TrustyKeymaster::Initialize() {
+    int err;
+
+    err = trusty_keymaster_connect();
+    if (err) {
+        ALOGE("Failed to connect to trusty keymaster %d", err);
+        return err;
+    }
+
+    ConfigureRequest req;
+    req.os_version = GetOsVersion();
+    req.os_patchlevel = GetOsPatchlevel();
+
+    ConfigureResponse rsp;
+    Configure(req, &rsp);
+
+    if (rsp.error != KM_ERROR_OK) {
+        ALOGE("Failed to configure keymaster %d", rsp.error);
+        return -1;
+    }
+
+    return 0;
+}
+
+TrustyKeymaster::TrustyKeymaster() {}
+
+TrustyKeymaster::~TrustyKeymaster() {
+    trusty_keymaster_disconnect();
+}
+
+static void ForwardCommand(enum keymaster_command command, const Serializable& req,
+                           KeymasterResponse* rsp) {
+    keymaster_error_t err;
+    err = trusty_keymaster_send(command, req, rsp);
+    if (err != KM_ERROR_OK) {
+        ALOGE("Failed to send cmd %d err: %d", command, err);
+        rsp->error = err;
+    }
+}
+
+void TrustyKeymaster::GetVersion(const GetVersionRequest& request, GetVersionResponse* response) {
+    ForwardCommand(KM_GET_VERSION, request, response);
+}
+
+void TrustyKeymaster::SupportedAlgorithms(const SupportedAlgorithmsRequest& request,
+                                          SupportedAlgorithmsResponse* response) {
+    ForwardCommand(KM_GET_SUPPORTED_ALGORITHMS, request, response);
+}
+
+void TrustyKeymaster::SupportedBlockModes(const SupportedBlockModesRequest& request,
+                                          SupportedBlockModesResponse* response) {
+    ForwardCommand(KM_GET_SUPPORTED_BLOCK_MODES, request, response);
+}
+
+void TrustyKeymaster::SupportedPaddingModes(const SupportedPaddingModesRequest& request,
+                                            SupportedPaddingModesResponse* response) {
+    ForwardCommand(KM_GET_SUPPORTED_PADDING_MODES, request, response);
+}
+
+void TrustyKeymaster::SupportedDigests(const SupportedDigestsRequest& request,
+                                       SupportedDigestsResponse* response) {
+    ForwardCommand(KM_GET_SUPPORTED_DIGESTS, request, response);
+}
+
+void TrustyKeymaster::SupportedImportFormats(const SupportedImportFormatsRequest& request,
+                                             SupportedImportFormatsResponse* response) {
+    ForwardCommand(KM_GET_SUPPORTED_IMPORT_FORMATS, request, response);
+}
+
+void TrustyKeymaster::SupportedExportFormats(const SupportedExportFormatsRequest& request,
+                                             SupportedExportFormatsResponse* response) {
+    ForwardCommand(KM_GET_SUPPORTED_EXPORT_FORMATS, request, response);
+}
+
+void TrustyKeymaster::AddRngEntropy(const AddEntropyRequest& request,
+                                    AddEntropyResponse* response) {
+    ForwardCommand(KM_ADD_RNG_ENTROPY, request, response);
+}
+
+void TrustyKeymaster::Configure(const ConfigureRequest& request, ConfigureResponse* response) {
+    ForwardCommand(KM_CONFIGURE, request, response);
+}
+
+void TrustyKeymaster::GenerateKey(const GenerateKeyRequest& request,
+                                  GenerateKeyResponse* response) {
+    GenerateKeyRequest datedRequest(request.message_version);
+    datedRequest.key_description = request.key_description;
+
+    if (!request.key_description.Contains(TAG_CREATION_DATETIME)) {
+        datedRequest.key_description.push_back(TAG_CREATION_DATETIME, java_time(time(NULL)));
+    }
+
+    ForwardCommand(KM_GENERATE_KEY, datedRequest, response);
+}
+
+void TrustyKeymaster::GetKeyCharacteristics(const GetKeyCharacteristicsRequest& request,
+                                            GetKeyCharacteristicsResponse* response) {
+    ForwardCommand(KM_GET_KEY_CHARACTERISTICS, request, response);
+}
+
+void TrustyKeymaster::ImportKey(const ImportKeyRequest& request, ImportKeyResponse* response) {
+    ForwardCommand(KM_IMPORT_KEY, request, response);
+}
+
+void TrustyKeymaster::ImportWrappedKey(const ImportWrappedKeyRequest& request,
+                                       ImportWrappedKeyResponse* response) {
+    ForwardCommand(KM_IMPORT_WRAPPED_KEY, request, response);
+}
+
+void TrustyKeymaster::ExportKey(const ExportKeyRequest& request, ExportKeyResponse* response) {
+    ForwardCommand(KM_EXPORT_KEY, request, response);
+}
+
+void TrustyKeymaster::AttestKey(const AttestKeyRequest& request, AttestKeyResponse* response) {
+    ForwardCommand(KM_ATTEST_KEY, request, response);
+}
+
+void TrustyKeymaster::UpgradeKey(const UpgradeKeyRequest& request, UpgradeKeyResponse* response) {
+    ForwardCommand(KM_UPGRADE_KEY, request, response);
+}
+
+void TrustyKeymaster::DeleteKey(const DeleteKeyRequest& request, DeleteKeyResponse* response) {
+    ForwardCommand(KM_DELETE_KEY, request, response);
+}
+
+void TrustyKeymaster::DeleteAllKeys(const DeleteAllKeysRequest& request,
+                                    DeleteAllKeysResponse* response) {
+    ForwardCommand(KM_DELETE_ALL_KEYS, request, response);
+}
+
+void TrustyKeymaster::BeginOperation(const BeginOperationRequest& request,
+                                     BeginOperationResponse* response) {
+    ForwardCommand(KM_BEGIN_OPERATION, request, response);
+}
+
+void TrustyKeymaster::UpdateOperation(const UpdateOperationRequest& request,
+                                      UpdateOperationResponse* response) {
+    ForwardCommand(KM_UPDATE_OPERATION, request, response);
+}
+
+void TrustyKeymaster::FinishOperation(const FinishOperationRequest& request,
+                                      FinishOperationResponse* response) {
+    ForwardCommand(KM_FINISH_OPERATION, request, response);
+}
+
+void TrustyKeymaster::AbortOperation(const AbortOperationRequest& request,
+                                     AbortOperationResponse* response) {
+    ForwardCommand(KM_ABORT_OPERATION, request, response);
+}
+
+/* Methods for Keymaster 4.0 functionality -- not yet implemented */
+GetHmacSharingParametersResponse TrustyKeymaster::GetHmacSharingParameters() {
+    GetHmacSharingParametersResponse response;
+    response.error = KM_ERROR_UNIMPLEMENTED;
+    return response;
+}
+
+ComputeSharedHmacResponse TrustyKeymaster::ComputeSharedHmac(
+        const ComputeSharedHmacRequest& /* request */) {
+    ComputeSharedHmacResponse response;
+    response.error = KM_ERROR_UNIMPLEMENTED;
+    return response;
+}
+
+VerifyAuthorizationResponse TrustyKeymaster::VerifyAuthorization(
+        const VerifyAuthorizationRequest& /* request */) {
+    VerifyAuthorizationResponse response;
+    response.error = KM_ERROR_UNIMPLEMENTED;
+    return response;
+}
+
+}  // namespace keymaster