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_->is_associated_ = true;
55 client_interface_->RefreshAssociateFreq();
56 client_interface_->bssid_ = event->GetBSSID();
58 client_interface_->is_associated_ = false;
59 client_interface_->bssid_.clear();
63 void MlmeEventHandlerImpl::OnRoam(unique_ptr<MlmeRoamEvent> event) {
64 if (event->GetStatusCode() == 0) {
65 client_interface_->is_associated_ = true;
66 client_interface_->RefreshAssociateFreq();
67 client_interface_->bssid_ = event->GetBSSID();
69 client_interface_->is_associated_ = false;
70 client_interface_->bssid_.clear();
74 void MlmeEventHandlerImpl::OnAssociate(unique_ptr<MlmeAssociateEvent> event) {
75 if (event->GetStatusCode() == 0) {
76 client_interface_->is_associated_ = true;
77 client_interface_->RefreshAssociateFreq();
78 client_interface_->bssid_ = event->GetBSSID();
80 client_interface_->is_associated_ = false;
81 client_interface_->bssid_.clear();
85 void MlmeEventHandlerImpl::OnDisconnect(unique_ptr<MlmeDisconnectEvent> event) {
86 client_interface_->is_associated_ = false;
87 client_interface_->bssid_.clear();
90 void MlmeEventHandlerImpl::OnDisassociate(unique_ptr<MlmeDisassociateEvent> event) {
91 client_interface_->is_associated_ = false;
92 client_interface_->bssid_.clear();
96 ClientInterfaceImpl::ClientInterfaceImpl(
98 const std::string& interface_name,
99 uint32_t interface_index,
100 const std::vector<uint8_t>& interface_mac_addr,
101 InterfaceTool* if_tool,
102 SupplicantManager* supplicant_manager,
103 NetlinkUtils* netlink_utils,
104 ScanUtils* scan_utils)
105 : wiphy_index_(wiphy_index),
106 interface_name_(interface_name),
107 interface_index_(interface_index),
108 interface_mac_addr_(interface_mac_addr),
110 supplicant_manager_(supplicant_manager),
111 netlink_utils_(netlink_utils),
112 scan_utils_(scan_utils),
113 mlme_event_handler_(new MlmeEventHandlerImpl(this)),
114 binder_(new ClientInterfaceBinder(this)),
115 is_associated_(false) {
116 netlink_utils_->SubscribeMlmeEvent(
118 mlme_event_handler_.get());
119 if (!netlink_utils_->GetWiphyInfo(wiphy_index_,
123 LOG(ERROR) << "Failed to get wiphy info from kernel";
125 LOG(INFO) << "create scanner for interface with index: "
126 << (int)interface_index_;
127 scanner_ = new ScannerImpl(wiphy_index,
136 ClientInterfaceImpl::~ClientInterfaceImpl() {
137 binder_->NotifyImplDead();
138 scanner_->Invalidate();
140 netlink_utils_->UnsubscribeMlmeEvent(interface_index_);
141 if_tool_->SetUpState(interface_name_.c_str(), false);
144 sp<android::net::wifi::IClientInterface> ClientInterfaceImpl::GetBinder() const {
148 bool ClientInterfaceImpl::EnableSupplicant() {
149 return supplicant_manager_->StartSupplicant();
152 bool ClientInterfaceImpl::DisableSupplicant() {
153 return supplicant_manager_->StopSupplicant();
156 bool ClientInterfaceImpl::GetPacketCounters(vector<int32_t>* out_packet_counters) {
157 StationInfo station_info;
158 if (!netlink_utils_->GetStationInfo(interface_index_,
163 out_packet_counters->push_back(station_info.station_tx_packets);
164 out_packet_counters->push_back(station_info.station_tx_failed);
169 bool ClientInterfaceImpl::SignalPoll(vector<int32_t>* out_signal_poll_results) {
170 StationInfo station_info;
171 if (!netlink_utils_->GetStationInfo(interface_index_,
176 out_signal_poll_results->push_back(
177 static_cast<int32_t>(station_info.current_rssi));
178 // Convert from 100kbit/s to Mbps.
179 out_signal_poll_results->push_back(
180 static_cast<int32_t>(station_info.station_tx_bitrate/10));
181 // Association frequency.
182 out_signal_poll_results->push_back(
183 static_cast<int32_t>(associate_freq_));
188 const vector<uint8_t>& ClientInterfaceImpl::GetMacAddress() {
189 return interface_mac_addr_;
192 bool ClientInterfaceImpl::requestANQP(
193 const ::std::vector<uint8_t>& bssid,
194 const ::android::sp<::android::net::wifi::IANQPDoneCallback>& callback) {
195 // TODO(nywang): query ANQP information from wpa_supplicant.
199 bool ClientInterfaceImpl::RefreshAssociateFreq() {
200 // wpa_supplicant fetches associate frequency using the latest scan result.
201 // We should follow the same method here before we find a better solution.
202 std::vector<NativeScanResult> scan_results;
203 if (!scan_utils_->GetScanResult(interface_index_, &scan_results)) {
206 for (auto& scan_result : scan_results) {
207 if (scan_result.associated) {
208 associate_freq_ = scan_result.frequency;
214 bool ClientInterfaceImpl::IsAssociated() {
215 return is_associated_;
218 } // namespace wificond
219 } // namespace android