| /* |
| * Copyright 2014 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 "google_keymaster_messages.h" |
| |
| namespace keymaster { |
| |
| GenerateKeyResponse::~GenerateKeyResponse() { delete[] key_blob.key_material; } |
| |
| size_t GenerateKeyResponse::SerializedSize() const { |
| if (error == KM_ERROR_OK) { |
| return sizeof(int32_t) /* error */ + sizeof(uint32_t) /* key size */ + |
| key_blob.key_material_size + sizeof(uint32_t) /* enforced size */ + |
| enforced.SerializedSize() + sizeof(uint32_t) /* unenforced size */ + |
| unenforced.SerializedSize(); |
| } else { |
| return sizeof(error); |
| } |
| } |
| |
| uint8_t* GenerateKeyResponse::Serialize(uint8_t* buf) const { |
| buf = append_to_buf(buf, static_cast<int32_t>(error)); |
| if (error == KM_ERROR_OK) { |
| buf = append_size_and_data_to_buf(buf, key_blob.key_material, key_blob.key_material_size); |
| buf = append_to_buf(buf, static_cast<uint32_t>(enforced.SerializedSize())); |
| buf = enforced.Serialize(buf); |
| buf = append_to_buf(buf, static_cast<uint32_t>(unenforced.SerializedSize())); |
| buf = unenforced.Serialize(buf); |
| }; |
| return buf; |
| } |
| |
| bool GenerateKeyResponse::DeserializeToCopy(const uint8_t** buf, const uint8_t* end) { |
| delete[] key_blob.key_material; |
| |
| if (!copy_from_buf(buf, end, &error)) |
| return false; |
| |
| if (end == *buf) |
| // Nothing but an error |
| return true; |
| |
| uint32_t key_material_size; |
| if (!copy_from_buf(buf, end, &key_material_size) || end - *buf < key_material_size) |
| return false; |
| |
| key_blob.key_material = new uint8_t[key_material_size]; |
| key_blob.key_material_size = key_material_size; |
| |
| if (key_blob.key_material == NULL || |
| !copy_from_buf(buf, end, key_blob.key_material, key_blob.key_material_size)) |
| return false; |
| |
| uint32_t enforced_size; |
| if (!copy_from_buf(buf, end, &enforced_size) || end - *buf < enforced_size || |
| !enforced.DeserializeToCopy(buf, *buf + enforced_size)) |
| return false; |
| |
| uint32_t unenforced_size; |
| if (!copy_from_buf(buf, end, &unenforced_size) || end - *buf < unenforced_size || |
| !unenforced.DeserializeToCopy(buf, *buf + unenforced_size)) |
| return false; |
| |
| return true; |
| } |
| |
| } // namespace keymaster |