1 /*
2 * Copyright 2018 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 "acl_connection_handler"
18
19 #include "acl_connection_handler.h"
20
21 #include "base/logging.h"
22
23 #include "osi/include/log.h"
24 #include "types/address.h"
25
26 using std::shared_ptr;
27
28 namespace test_vendor_lib {
29
HasHandle(uint16_t handle) const30 bool AclConnectionHandler::HasHandle(uint16_t handle) const {
31 if (acl_connections_.count(handle) == 0) {
32 return false;
33 }
34 return true;
35 }
36
GetUnusedHandle()37 uint16_t AclConnectionHandler::GetUnusedHandle() {
38 static uint16_t sNextHandle = acl::kReservedHandle - 2;
39 while (acl_connections_.count(sNextHandle) == 1) {
40 sNextHandle = (sNextHandle + 1) % acl::kReservedHandle;
41 }
42 uint16_t unused_handle = sNextHandle;
43 sNextHandle = (sNextHandle + 1) % acl::kReservedHandle;
44 return unused_handle;
45 }
46
CreatePendingConnection(const Address & addr)47 bool AclConnectionHandler::CreatePendingConnection(const Address& addr) {
48 if ((pending_connections_.size() + 1 > max_pending_connections_) || HasPendingConnection(addr)) {
49 return false;
50 }
51 pending_connections_.insert(addr);
52 return true;
53 }
54
HasPendingConnection(const Address & addr)55 bool AclConnectionHandler::HasPendingConnection(const Address& addr) {
56 return pending_connections_.count(addr) == 1;
57 }
58
CancelPendingConnection(const Address & addr)59 bool AclConnectionHandler::CancelPendingConnection(const Address& addr) {
60 if (!HasPendingConnection(addr)) {
61 return false;
62 }
63 pending_connections_.erase(addr);
64 return true;
65 }
66
CreateConnection(const Address & addr)67 uint16_t AclConnectionHandler::CreateConnection(const Address& addr) {
68 if (CancelPendingConnection(addr)) {
69 uint16_t handle = GetUnusedHandle();
70 acl_connections_.emplace(handle, addr);
71 SetConnected(handle, true);
72 return handle;
73 }
74 return acl::kReservedHandle;
75 }
76
Disconnect(uint16_t handle)77 bool AclConnectionHandler::Disconnect(uint16_t handle) {
78 return acl_connections_.erase(handle) > 0;
79 }
80
GetHandle(const Address & addr) const81 uint16_t AclConnectionHandler::GetHandle(const Address& addr) const {
82 for (auto pair : acl_connections_) {
83 if (std::get<AclConnection>(pair).GetAddress() == addr) {
84 return std::get<0>(pair);
85 }
86 }
87 return acl::kReservedHandle;
88 }
89
GetAddress(uint16_t handle) const90 const Address& AclConnectionHandler::GetAddress(uint16_t handle) const {
91 CHECK(HasHandle(handle)) << "Handle unknown " << handle;
92 return acl_connections_.at(handle).GetAddress();
93 }
94
SetConnected(uint16_t handle,bool connected)95 void AclConnectionHandler::SetConnected(uint16_t handle, bool connected) {
96 if (!HasHandle(handle)) {
97 return;
98 }
99 acl_connections_.at(handle).SetConnected(connected);
100 }
101
IsConnected(uint16_t handle) const102 bool AclConnectionHandler::IsConnected(uint16_t handle) const {
103 if (!HasHandle(handle)) {
104 return false;
105 }
106 return acl_connections_.at(handle).IsConnected();
107 }
108
Encrypt(uint16_t handle)109 void AclConnectionHandler::Encrypt(uint16_t handle) {
110 if (!HasHandle(handle)) {
111 return;
112 }
113 acl_connections_.at(handle).Encrypt();
114 }
115
IsEncrypted(uint16_t handle) const116 bool AclConnectionHandler::IsEncrypted(uint16_t handle) const {
117 if (!HasHandle(handle)) {
118 return false;
119 }
120 return acl_connections_.at(handle).IsEncrypted();
121 }
122
SetAddress(uint16_t handle,const Address & address)123 void AclConnectionHandler::SetAddress(uint16_t handle, const Address& address) {
124 if (!HasHandle(handle)) {
125 return;
126 }
127 acl_connections_.at(handle).SetAddress(address);
128 }
129
130 } // namespace test_vendor_lib
131