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>
24 #include "wificond/client_interface_binder.h"
25 #include "wificond/net/mlme_event.h"
26 #include "wificond/net/netlink_utils.h"
27 #include "wificond/scanning/scan_result.h"
28 #include "wificond/scanning/scan_utils.h"
29 #include "wificond/scanning/scanner_impl.h"
31 using android::net::wifi::IClientInterface;
32 using com::android::server::wifi::wificond::NativeScanResult;
34 using android::wifi_system::InterfaceTool;
35 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->IsTimeout() && event->GetStatusCode() == 0) {
54 client_interface_->is_associated_ = true;
55 client_interface_->RefreshAssociateFreq();
56 client_interface_->bssid_ = event->GetBSSID();
58 if (event->IsTimeout()) {
59 LOG(INFO) << "Connect timeout";
61 client_interface_->is_associated_ = false;
62 client_interface_->bssid_.clear();
66 void MlmeEventHandlerImpl::OnRoam(unique_ptr<MlmeRoamEvent> event) {
67 if (event->GetStatusCode() == 0) {
68 client_interface_->is_associated_ = true;
69 client_interface_->RefreshAssociateFreq();
70 client_interface_->bssid_ = event->GetBSSID();
72 client_interface_->is_associated_ = false;
73 client_interface_->bssid_.clear();
77 void MlmeEventHandlerImpl::OnAssociate(unique_ptr<MlmeAssociateEvent> event) {
78 if (!event->IsTimeout() && event->GetStatusCode() == 0) {
79 client_interface_->is_associated_ = true;
80 client_interface_->RefreshAssociateFreq();
81 client_interface_->bssid_ = event->GetBSSID();
83 if (event->IsTimeout()) {
84 LOG(INFO) << "Associate timeout";
86 client_interface_->is_associated_ = false;
87 client_interface_->bssid_.clear();
91 void MlmeEventHandlerImpl::OnDisconnect(unique_ptr<MlmeDisconnectEvent> event) {
92 client_interface_->is_associated_ = false;
93 client_interface_->bssid_.clear();
96 void MlmeEventHandlerImpl::OnDisassociate(unique_ptr<MlmeDisassociateEvent> event) {
97 client_interface_->is_associated_ = false;
98 client_interface_->bssid_.clear();
102 ClientInterfaceImpl::ClientInterfaceImpl(
103 uint32_t wiphy_index,
104 const std::string& interface_name,
105 uint32_t interface_index,
106 const std::vector<uint8_t>& interface_mac_addr,
107 InterfaceTool* if_tool,
108 SupplicantManager* supplicant_manager,
109 NetlinkUtils* netlink_utils,
110 ScanUtils* scan_utils)
111 : wiphy_index_(wiphy_index),
112 interface_name_(interface_name),
113 interface_index_(interface_index),
114 interface_mac_addr_(interface_mac_addr),
116 supplicant_manager_(supplicant_manager),
117 netlink_utils_(netlink_utils),
118 scan_utils_(scan_utils),
119 mlme_event_handler_(new MlmeEventHandlerImpl(this)),
120 binder_(new ClientInterfaceBinder(this)),
121 is_associated_(false) {
122 netlink_utils_->SubscribeMlmeEvent(
124 mlme_event_handler_.get());
125 if (!netlink_utils_->GetWiphyInfo(wiphy_index_,
129 LOG(ERROR) << "Failed to get wiphy info from kernel";
131 LOG(INFO) << "create scanner for interface with index: "
132 << (int)interface_index_;
133 scanner_ = new ScannerImpl(wiphy_index,
142 ClientInterfaceImpl::~ClientInterfaceImpl() {
143 binder_->NotifyImplDead();
144 scanner_->Invalidate();
146 netlink_utils_->UnsubscribeMlmeEvent(interface_index_);
147 if_tool_->SetUpState(interface_name_.c_str(), false);
150 sp<android::net::wifi::IClientInterface> ClientInterfaceImpl::GetBinder() const {
154 void ClientInterfaceImpl::Dump(std::stringstream* ss) const {
155 *ss << "------- Dump of client interface with index: "
156 << interface_index_ << " and name: " << interface_name_
157 << "-------" << endl;
158 *ss << "Max number of ssids for single shot scan: "
159 << static_cast<int>(scan_capabilities_.max_num_scan_ssids) << endl;
160 *ss << "Max number of ssids for scheduled scan: "
161 << static_cast<int>(scan_capabilities_.max_num_sched_scan_ssids) << endl;
162 *ss << "Max number of match sets for scheduled scan: "
163 << static_cast<int>(scan_capabilities_.max_match_sets) << endl;
164 *ss << "Device supports random MAC for single shot scan: "
165 << wiphy_features_.supports_random_mac_oneshot_scan << endl;
166 *ss << "Device supports random MAC for scheduled scan: "
167 << wiphy_features_.supports_random_mac_sched_scan << endl;
168 *ss << "------- Dump End -------" << endl;
171 bool ClientInterfaceImpl::EnableSupplicant() {
172 return supplicant_manager_->StartSupplicant();
175 bool ClientInterfaceImpl::DisableSupplicant() {
176 return supplicant_manager_->StopSupplicant();
179 bool ClientInterfaceImpl::GetPacketCounters(vector<int32_t>* out_packet_counters) {
180 StationInfo station_info;
181 if (!netlink_utils_->GetStationInfo(interface_index_,
186 out_packet_counters->push_back(station_info.station_tx_packets);
187 out_packet_counters->push_back(station_info.station_tx_failed);
192 bool ClientInterfaceImpl::SignalPoll(vector<int32_t>* out_signal_poll_results) {
193 StationInfo station_info;
194 if (!netlink_utils_->GetStationInfo(interface_index_,
199 out_signal_poll_results->push_back(
200 static_cast<int32_t>(station_info.current_rssi));
201 // Convert from 100kbit/s to Mbps.
202 out_signal_poll_results->push_back(
203 static_cast<int32_t>(station_info.station_tx_bitrate/10));
204 // Association frequency.
205 out_signal_poll_results->push_back(
206 static_cast<int32_t>(associate_freq_));
211 const vector<uint8_t>& ClientInterfaceImpl::GetMacAddress() {
212 return interface_mac_addr_;
215 bool ClientInterfaceImpl::requestANQP(
216 const ::std::vector<uint8_t>& bssid,
217 const ::android::sp<::android::net::wifi::IANQPDoneCallback>& callback) {
218 // TODO(nywang): query ANQP information from wpa_supplicant.
222 bool ClientInterfaceImpl::RefreshAssociateFreq() {
223 // wpa_supplicant fetches associate frequency using the latest scan result.
224 // We should follow the same method here before we find a better solution.
225 std::vector<NativeScanResult> scan_results;
226 if (!scan_utils_->GetScanResult(interface_index_, &scan_results)) {
229 for (auto& scan_result : scan_results) {
230 if (scan_result.associated) {
231 associate_freq_ = scan_result.frequency;
237 bool ClientInterfaceImpl::IsAssociated() const {
238 return is_associated_;
241 } // namespace wificond
242 } // namespace android