1 /*
2 * Copyright 2019 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 #define LOG_TAG "security"
18
19 #include <memory>
20 #include "module.h"
21 #include "os/handler.h"
22 #include "os/log.h"
23
24 #include "hci/acl_manager.h"
25 #include "hci/hci_layer.h"
26 #include "l2cap/le/l2cap_le_module.h"
27 #include "neighbor/name_db.h"
28 #include "security/channel/security_manager_channel.h"
29 #include "security/facade_configuration_api.h"
30 #include "security/internal/security_manager_impl.h"
31 #include "security/l2cap_security_module_interface.h"
32 #include "security/security_module.h"
33 #include "storage/storage_module.h"
34
35 namespace bluetooth {
36 namespace security {
37
__anon04ad4f110102() 38 const ModuleFactory SecurityModule::Factory = ModuleFactory([]() { return new SecurityModule(); });
39
40 struct SecurityModule::impl {
implbluetooth::security::SecurityModule::impl41 impl(
42 os::Handler* security_handler,
43 l2cap::le::L2capLeModule* l2cap_le_module,
44 l2cap::classic::L2capClassicModule* l2cap_classic_module,
45 hci::HciLayer* hci_layer,
46 hci::AclManager* acl_manager,
47 hci::Controller* controller,
48 storage::StorageModule* storage_module,
49 neighbor::NameDbModule* name_db_module)
50 : security_handler_(security_handler),
51 l2cap_classic_module_(l2cap_classic_module),
52 l2cap_le_module_(l2cap_le_module),
53 security_manager_channel_(new channel::SecurityManagerChannel(security_handler_, hci_layer)),
54 hci_layer_(hci_layer),
55 acl_manager_(acl_manager),
56 controller_(controller),
57 storage_module_(storage_module),
58 l2cap_security_interface_(&security_manager_impl, security_handler),
59 name_db_module_(name_db_module) {
60 l2cap_classic_module->InjectSecurityEnforcementInterface(&l2cap_security_interface_);
61 l2cap_le_module->InjectSecurityEnforcementInterface(&l2cap_security_interface_);
62 security_manager_channel_->SetSecurityInterface(
63 l2cap_classic_module->GetSecurityInterface(security_handler_, security_manager_channel_));
64 }
65
66 os::Handler* security_handler_;
67 l2cap::classic::L2capClassicModule* l2cap_classic_module_;
68 l2cap::le::L2capLeModule* l2cap_le_module_;
69 channel::SecurityManagerChannel* security_manager_channel_;
70 hci::HciLayer* hci_layer_;
71 hci::AclManager* acl_manager_;
72 hci::Controller* controller_;
73 storage::StorageModule* storage_module_;
74 L2capSecurityModuleInterface l2cap_security_interface_;
75 neighbor::NameDbModule* name_db_module_;
76
77 internal::SecurityManagerImpl security_manager_impl{security_handler_,
78 l2cap_le_module_,
79 security_manager_channel_,
80 hci_layer_,
81 acl_manager_,
82 controller_,
83 storage_module_,
84 name_db_module_};
85
~implbluetooth::security::SecurityModule::impl86 ~impl() {
87 delete security_manager_channel_;
88 l2cap_classic_module_->InjectSecurityEnforcementInterface(nullptr);
89 l2cap_le_module_->InjectSecurityEnforcementInterface(nullptr);
90 }
91 };
92
ListDependencies(ModuleList * list)93 void SecurityModule::ListDependencies(ModuleList* list) {
94 list->add<l2cap::le::L2capLeModule>();
95 list->add<l2cap::classic::L2capClassicModule>();
96 list->add<hci::HciLayer>();
97 list->add<hci::AclManager>();
98 list->add<hci::Controller>();
99 list->add<storage::StorageModule>();
100 list->add<neighbor::NameDbModule>();
101 }
102
Start()103 void SecurityModule::Start() {
104 pimpl_ = std::make_unique<impl>(
105 GetHandler(),
106 GetDependency<l2cap::le::L2capLeModule>(),
107 GetDependency<l2cap::classic::L2capClassicModule>(),
108 GetDependency<hci::HciLayer>(),
109 GetDependency<hci::AclManager>(),
110 GetDependency<hci::Controller>(),
111 GetDependency<storage::StorageModule>(),
112 GetDependency<neighbor::NameDbModule>());
113
114 GetDependency<hci::AclManager>()->SetSecurityModule(this);
115 }
116
Stop()117 void SecurityModule::Stop() {
118 pimpl_.reset();
119 }
120
ToString() const121 std::string SecurityModule::ToString() const {
122 return "Security Module";
123 }
124
GetSecurityManager()125 std::unique_ptr<SecurityManager> SecurityModule::GetSecurityManager() {
126 return std::unique_ptr<SecurityManager>(
127 new SecurityManager(pimpl_->security_handler_, &pimpl_->security_manager_impl));
128 }
129
GetFacadeConfigurationApi()130 std::unique_ptr<FacadeConfigurationApi> SecurityModule::GetFacadeConfigurationApi() {
131 return std::unique_ptr<FacadeConfigurationApi>(
132 new FacadeConfigurationApi(pimpl_->security_handler_, &pimpl_->security_manager_impl));
133 }
134
135 } // namespace security
136 } // namespace bluetooth