2 * Copyright (C) 2016 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #include "wificond/client_interface_impl.h"
21 #include <android-base/logging.h>
22 #include <wifi_system/supplicant_manager.h>
23 #include <wifi_system/wifi.h>
25 #include "wificond/client_interface_binder.h"
26 #include "wificond/net/mlme_event.h"
27 #include "wificond/net/netlink_utils.h"
28 #include "wificond/scanning/scan_result.h"
29 #include "wificond/scanning/scan_utils.h"
30 #include "wificond/scanning/scanner_impl.h"
32 using android::net::wifi::IClientInterface;
33 using com::android::server::wifi::wificond::NativeScanResult;
35 using android::wifi_system::InterfaceTool;
36 using android::wifi_system::SupplicantManager;
39 using std::unique_ptr;
45 MlmeEventHandlerImpl::MlmeEventHandlerImpl(ClientInterfaceImpl* client_interface)
46 : client_interface_(client_interface) {
49 MlmeEventHandlerImpl::~MlmeEventHandlerImpl() {
52 void MlmeEventHandlerImpl::OnConnect(unique_ptr<MlmeConnectEvent> event) {
53 if (event->GetStatusCode() == 0) {
54 client_interface_->RefreshAssociateFreq();
55 client_interface_->bssid_ = event->GetBSSID();
59 void MlmeEventHandlerImpl::OnRoam(unique_ptr<MlmeRoamEvent> event) {
60 if (event->GetStatusCode() == 0) {
61 client_interface_->RefreshAssociateFreq();
62 client_interface_->bssid_ = event->GetBSSID();
66 void MlmeEventHandlerImpl::OnAssociate(unique_ptr<MlmeAssociateEvent> event) {
67 if (event->GetStatusCode() == 0) {
68 client_interface_->RefreshAssociateFreq();
69 client_interface_->bssid_ = event->GetBSSID();
73 ClientInterfaceImpl::ClientInterfaceImpl(
75 const std::string& interface_name,
76 uint32_t interface_index,
77 const std::vector<uint8_t>& interface_mac_addr,
78 InterfaceTool* if_tool,
79 SupplicantManager* supplicant_manager,
80 NetlinkUtils* netlink_utils,
81 ScanUtils* scan_utils)
82 : wiphy_index_(wiphy_index),
83 interface_name_(interface_name),
84 interface_index_(interface_index),
85 interface_mac_addr_(interface_mac_addr),
87 supplicant_manager_(supplicant_manager),
88 netlink_utils_(netlink_utils),
89 scan_utils_(scan_utils),
90 mlme_event_handler_(new MlmeEventHandlerImpl(this)),
91 binder_(new ClientInterfaceBinder(this)) {
92 netlink_utils_->SubscribeMlmeEvent(
94 mlme_event_handler_.get());
95 if (!netlink_utils_->GetWiphyInfo(wiphy_index_,
99 LOG(ERROR) << "Failed to get wiphy info from kernel";
101 LOG(INFO) << "create scanner for interface with index: "
102 << (int)interface_index_;
103 scanner_ = new ScannerImpl(wiphy_index,
111 ClientInterfaceImpl::~ClientInterfaceImpl() {
112 binder_->NotifyImplDead();
113 scanner_->Invalidate();
115 netlink_utils_->UnsubscribeMlmeEvent(interface_index_);
116 if_tool_->SetUpState(interface_name_.c_str(), false);
119 sp<android::net::wifi::IClientInterface> ClientInterfaceImpl::GetBinder() const {
123 bool ClientInterfaceImpl::EnableSupplicant() {
124 return supplicant_manager_->StartSupplicant();
127 bool ClientInterfaceImpl::DisableSupplicant() {
128 return supplicant_manager_->StopSupplicant();
131 bool ClientInterfaceImpl::GetPacketCounters(vector<int32_t>* out_packet_counters) {
132 StationInfo station_info;
133 if (!netlink_utils_->GetStationInfo(interface_index_,
138 out_packet_counters->push_back(station_info.station_tx_packets);
139 out_packet_counters->push_back(station_info.station_tx_failed);
144 bool ClientInterfaceImpl::SignalPoll(vector<int32_t>* out_signal_poll_results) {
145 StationInfo station_info;
146 if (!netlink_utils_->GetStationInfo(interface_index_,
151 out_signal_poll_results->push_back(
152 static_cast<int32_t>(station_info.current_rssi));
153 // Convert from 100kbit/s to Mbps.
154 out_signal_poll_results->push_back(
155 static_cast<int32_t>(station_info.station_tx_bitrate/10));
156 // Association frequency.
157 out_signal_poll_results->push_back(
158 static_cast<int32_t>(associate_freq_));
163 const vector<uint8_t>& ClientInterfaceImpl::GetMacAddress() {
164 return interface_mac_addr_;
167 bool ClientInterfaceImpl::requestANQP(
168 const ::std::vector<uint8_t>& bssid,
169 const ::android::sp<::android::net::wifi::IANQPDoneCallback>& callback) {
170 // TODO(nywang): query ANQP information from wpa_supplicant.
174 bool ClientInterfaceImpl::RefreshAssociateFreq() {
175 // wpa_supplicant fetches associate frequency using the latest scan result.
176 // We should follow the same method here before we find a better solution.
177 std::vector<NativeScanResult> scan_results;
178 if (!scan_utils_->GetScanResult(interface_index_, &scan_results)) {
181 for (auto& scan_result : scan_results) {
182 if (scan_result.associated) {
183 associate_freq_ = scan_result.frequency;
189 } // namespace wificond
190 } // namespace android