| /* |
| ** |
| ** Copyright 2017, 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 <keymaster/legacy_support/keymaster_passthrough_key.h> |
| |
| namespace keymaster { |
| |
| keymaster_error_t |
| KeymasterPassthroughKeyFactory::LoadKey(KeymasterKeyBlob&& key_material, |
| const AuthorizationSet& additional_params, |
| AuthorizationSet&& hw_enforced, |
| AuthorizationSet&& sw_enforced, |
| UniquePtr<Key>* key) const { |
| keymaster_error_t error = KM_ERROR_OK; |
| if (!key) |
| return KM_ERROR_OUTPUT_PARAMETER_NULL; |
| |
| key->reset(new (std::nothrow) KeymasterPassthroughKey(move(key_material), move(hw_enforced), |
| move(sw_enforced), this, &error, |
| additional_params, engine_)); |
| if (!key->get()) |
| error = KM_ERROR_MEMORY_ALLOCATION_FAILED; |
| |
| return error; |
| } |
| |
| const keymaster_key_format_t* |
| KeymasterPassthroughKeyFactory::SupportedImportFormats(size_t* format_count) const { |
| if (format_count) *format_count = 0; |
| return nullptr; |
| } |
| const keymaster_key_format_t* |
| KeymasterPassthroughKeyFactory::SupportedExportFormats(size_t* format_count) const { |
| if (format_count) *format_count = 0; |
| return nullptr; |
| } |
| |
| |
| keymaster_error_t |
| KeymasterPassthroughKey::formatted_key_material(keymaster_key_format_t format, |
| UniquePtr<uint8_t[]>* material, |
| size_t* size) const { |
| if (!material || !size) { |
| return KM_ERROR_OUTPUT_PARAMETER_NULL; |
| } |
| keymaster_blob_t km_app_data = {}; |
| KeymasterBlob app_data; |
| if (additional_parameters_.GetTagValue(TAG_APPLICATION_DATA, &km_app_data)) { |
| app_data = KeymasterBlob(km_app_data); |
| } |
| |
| keymaster_blob_t km_client_id = {}; |
| KeymasterBlob client_id; |
| if (additional_parameters_.GetTagValue(TAG_APPLICATION_ID, &km_client_id)) { |
| client_id = KeymasterBlob(km_client_id); |
| } |
| |
| KeymasterBlob export_data; |
| |
| keymaster_error_t error = engine_->ExportKey(format, key_material(), client_id, app_data, |
| &export_data); |
| if (error == KM_ERROR_OK) { |
| keymaster_blob_t export_blob = export_data.release(); |
| material->reset(const_cast<uint8_t*>(export_blob.data)); |
| *size = export_blob.data_length; |
| } |
| return error; |
| } |
| |
| } // namespace keymaster |