1 /* 2 * Copyright 2020 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 #pragma once 18 19 #include "common/contextual_callback.h" 20 #include "hci/address_with_type.h" 21 #include "l2cap/classic/security_policy.h" 22 23 namespace bluetooth { 24 namespace l2cap { 25 namespace classic { 26 27 /** 28 * The interface for Security Module to implement. 29 */ 30 class SecurityEnforcementInterface { 31 public: 32 virtual ~SecurityEnforcementInterface() = default; 33 34 using ResultCallback = common::ContextualOnceCallback<void(bool)>; 35 36 /** 37 * Invoked when L2CAP needs to open a channel with given security requirement. When the Security Module satisfies the 38 * required security level, or cannot satisfy at all, invoke the result_callback. 39 */ 40 virtual void Enforce(hci::AddressWithType remote, SecurityPolicy policy, ResultCallback result_callback) = 0; 41 }; 42 43 /** 44 * A default implementation which cannot satisfy any security level except 45 * _SDP_ONLY_NO_SECURITY_WHATSOEVER_PLAINTEXT_TRANSPORT_OK. 46 */ 47 class SecurityEnforcementRejectAllImpl : public SecurityEnforcementInterface { 48 public: Enforce(hci::AddressWithType remote,SecurityPolicy policy,ResultCallback result_callback)49 void Enforce(hci::AddressWithType remote, SecurityPolicy policy, ResultCallback result_callback) override { 50 if (policy == SecurityPolicy::_SDP_ONLY_NO_SECURITY_WHATSOEVER_PLAINTEXT_TRANSPORT_OK) { 51 result_callback.InvokeIfNotEmpty(true); 52 } else { 53 result_callback.InvokeIfNotEmpty(false); 54 } 55 } 56 }; 57 } // namespace classic 58 } // namespace l2cap 59 } // namespace bluetooth 60