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 <utility> 18 19 #include <keymaster/android_keymaster_utils.h> 20 #include <keymaster/operation.h> 21 #include <keymaster/operation_table.h> 22 23 namespace keymaster { 24 Add(OperationPtr && operation)25keymaster_error_t OperationTable::Add(OperationPtr&& operation) { 26 if (!table_) { 27 table_.reset(new (std::nothrow) OperationPtr[table_size_]); 28 if (!table_) return KM_ERROR_MEMORY_ALLOCATION_FAILED; 29 } 30 for (size_t i = 0; i < table_size_; ++i) { 31 if (!table_[i]) { 32 table_[i] = std::move(operation); 33 return KM_ERROR_OK; 34 } 35 } 36 return KM_ERROR_TOO_MANY_OPERATIONS; 37 } 38 Find(keymaster_operation_handle_t op_handle)39Operation* OperationTable::Find(keymaster_operation_handle_t op_handle) { 40 if (op_handle == 0) return nullptr; 41 42 if (!table_.get()) return nullptr; 43 44 for (size_t i = 0; i < table_size_; ++i) { 45 if (table_[i] && table_[i]->operation_handle() == op_handle) return table_[i].get(); 46 } 47 return nullptr; 48 } 49 Delete(keymaster_operation_handle_t op_handle)50bool OperationTable::Delete(keymaster_operation_handle_t op_handle) { 51 if (!table_.get()) return false; 52 53 for (size_t i = 0; i < table_size_; ++i) { 54 if (table_[i] && table_[i]->operation_handle() == op_handle) { 55 table_[i].reset(); 56 return true; 57 } 58 } 59 return false; 60 } 61 62 } // namespace keymaster 63