1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <keymaster/android_keymaster_utils.h> 18 #include <keymaster/operation.h> 19 #include <keymaster/operation_table.h> 20 21 namespace keymaster { 22 Add(OperationPtr && operation)23keymaster_error_t OperationTable::Add(OperationPtr&& operation) { 24 if (!table_) { 25 table_.reset(new (std::nothrow) OperationPtr[table_size_]); 26 if (!table_) return KM_ERROR_MEMORY_ALLOCATION_FAILED; 27 } 28 for (size_t i = 0; i < table_size_; ++i) { 29 if (!table_[i]) { 30 table_[i] = move(operation); 31 return KM_ERROR_OK; 32 } 33 } 34 return KM_ERROR_TOO_MANY_OPERATIONS; 35 } 36 Find(keymaster_operation_handle_t op_handle)37Operation* OperationTable::Find(keymaster_operation_handle_t op_handle) { 38 if (op_handle == 0) return nullptr; 39 40 if (!table_.get()) return nullptr; 41 42 for (size_t i = 0; i < table_size_; ++i) { 43 if (table_[i] && table_[i]->operation_handle() == op_handle) return table_[i].get(); 44 } 45 return nullptr; 46 } 47 Delete(keymaster_operation_handle_t op_handle)48bool OperationTable::Delete(keymaster_operation_handle_t op_handle) { 49 if (!table_.get()) return false; 50 51 for (size_t i = 0; i < table_size_; ++i) { 52 if (table_[i] && table_[i]->operation_handle() == op_handle) { 53 table_[i].reset(); 54 return true; 55 } 56 } 57 return false; 58 } 59 60 } // namespace keymaster 61