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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.wifi.p2p;
import android.hardware.wifi.supplicant.V1_0.ISupplicantP2pIfaceCallback;
import android.hardware.wifi.supplicant.V1_0.WpsConfigMethods;
import android.net.wifi.WpsInfo;
import android.net.wifi.p2p.WifiP2pConfig;
import android.net.wifi.p2p.WifiP2pDevice;
import android.net.wifi.p2p.WifiP2pGroup;
import android.net.wifi.p2p.WifiP2pProvDiscEvent;
import android.net.wifi.p2p.WifiP2pWfdInfo;
import android.net.wifi.p2p.nsd.WifiP2pServiceResponse;
import android.util.Log;
import com.android.server.wifi.p2p.WifiP2pServiceImpl.P2pStatus;
import com.android.server.wifi.util.NativeUtil;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* Class used for processing all P2P callbacks.
*/
public class SupplicantP2pIfaceCallback extends ISupplicantP2pIfaceCallback.Stub {
private static final String TAG = "SupplicantP2pIfaceCallback";
private static boolean sVerboseLoggingEnabled = true;
private final String mInterface;
private final WifiP2pMonitor mMonitor;
public SupplicantP2pIfaceCallback(String iface, WifiP2pMonitor monitor) {
mInterface = iface;
mMonitor = monitor;
}
/**
* Enable verbose logging for all sub modules.
*/
public static void enableVerboseLogging(int verbose) {
sVerboseLoggingEnabled = verbose > 0;
}
protected static void logd(String s) {
if (sVerboseLoggingEnabled) Log.d(TAG, s);
}
/**
* Used to indicate that a new network has been added.
*
* @param networkId Network ID allocated to the corresponding network.
*/
public void onNetworkAdded(int networkId) {
}
/**
* Used to indicate that a network has been removed.
*
* @param networkId Network ID allocated to the corresponding network.
*/
public void onNetworkRemoved(int networkId) {
}
/**
* Used to indicate that a P2P device has been found.
*
* @param srcAddress MAC address of the device found. This must either
* be the P2P device address or the P2P interface address.
* @param p2pDeviceAddress P2P device address.
* @param primaryDeviceType Type of device. Refer to section B.1 of Wifi P2P
* Technical specification v1.2.
* @param deviceName Name of the device.
* @param configMethods Mask of WPS configuration methods supported by the
* device.
* @param deviceCapabilities Refer to section 4.1.4 of Wifi P2P Technical
* specification v1.2.
* @param groupCapabilities Refer to section 4.1.4 of Wifi P2P Technical
* specification v1.2.
* @param wfdDeviceInfo WFD device info as described in section 5.1.2 of WFD
* technical specification v1.0.0.
*/
public void onDeviceFound(byte[] srcAddress, byte[] p2pDeviceAddress, byte[] primaryDeviceType,
String deviceName, short configMethods, byte deviceCapabilities, int groupCapabilities,
byte[] wfdDeviceInfo) {
WifiP2pDevice device = new WifiP2pDevice();
device.deviceName = deviceName;
if (deviceName == null) {
Log.e(TAG, "Missing device name.");
return;
}
try {
device.deviceAddress = NativeUtil.macAddressFromByteArray(p2pDeviceAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode device address.", e);
return;
}
try {
device.primaryDeviceType = NativeUtil.wpsDevTypeStringFromByteArray(primaryDeviceType);
} catch (Exception e) {
Log.e(TAG, "Could not encode device primary type.", e);
return;
}
device.deviceCapability = deviceCapabilities;
device.groupCapability = groupCapabilities;
device.wpsConfigMethodsSupported = configMethods;
device.status = WifiP2pDevice.AVAILABLE;
if (wfdDeviceInfo != null && wfdDeviceInfo.length >= 6) {
device.wfdInfo = new WifiP2pWfdInfo(
((wfdDeviceInfo[0] & 0xFF) << 8) + (wfdDeviceInfo[1] & 0xFF),
((wfdDeviceInfo[2] & 0xFF) << 8) + (wfdDeviceInfo[3] & 0xFF),
((wfdDeviceInfo[4] & 0xFF) << 8) + (wfdDeviceInfo[5] & 0xFF));
}
logd("Device discovered on " + mInterface + ": " + device);
mMonitor.broadcastP2pDeviceFound(mInterface, device);
}
/**
* Used to indicate that a P2P device has been lost.
*
* @param p2pDeviceAddress P2P device address.
*/
public void onDeviceLost(byte[] p2pDeviceAddress) {
WifiP2pDevice device = new WifiP2pDevice();
try {
device.deviceAddress = NativeUtil.macAddressFromByteArray(p2pDeviceAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode device address.", e);
return;
}
device.status = WifiP2pDevice.UNAVAILABLE;
logd("Device lost on " + mInterface + ": " + device);
mMonitor.broadcastP2pDeviceLost(mInterface, device);
}
/**
* Used to indicate the termination of P2P find operation.
*/
public void onFindStopped() {
logd("Search stopped on " + mInterface);
mMonitor.broadcastP2pFindStopped(mInterface);
}
/**
* Used to indicate the reception of a P2P Group Owner negotiation request.
*
* @param srcAddress MAC address of the device that initiated the GO
* negotiation request.
* @param passwordId Type of password.
*/
public void onGoNegotiationRequest(byte[] srcAddress, short passwordId) {
WifiP2pConfig config = new WifiP2pConfig();
try {
config.deviceAddress = NativeUtil.macAddressFromByteArray(srcAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode device address.", e);
return;
}
config.wps = new WpsInfo();
switch (passwordId) {
case WpsDevPasswordId.USER_SPECIFIED:
config.wps.setup = WpsInfo.DISPLAY;
break;
case WpsDevPasswordId.PUSHBUTTON:
config.wps.setup = WpsInfo.PBC;
break;
case WpsDevPasswordId.REGISTRAR_SPECIFIED:
config.wps.setup = WpsInfo.KEYPAD;
break;
default:
config.wps.setup = WpsInfo.PBC;
break;
}
logd("Group Owner negotiation initiated on " + mInterface + ": " + config);
mMonitor.broadcastP2pGoNegotiationRequest(mInterface, config);
}
/**
* Used to indicate the completion of a P2P Group Owner negotiation request.
*
* @param status Status of the GO negotiation.
*/
public void onGoNegotiationCompleted(int status) {
logd("Group Owner negotiation completed with status: " + status);
P2pStatus result = halStatusToP2pStatus(status);
if (result == P2pStatus.SUCCESS) {
mMonitor.broadcastP2pGoNegotiationSuccess(mInterface);
} else {
mMonitor.broadcastP2pGoNegotiationFailure(mInterface, result);
}
}
/**
* Used to indicate a successful formation of a P2P group.
*/
public void onGroupFormationSuccess() {
logd("Group formation successful on " + mInterface);
mMonitor.broadcastP2pGroupFormationSuccess(mInterface);
}
/**
* Used to indicate a failure to form a P2P group.
*
* @param failureReason Failure reason string for debug purposes.
*/
public void onGroupFormationFailure(String failureReason) {
// TODO(ender): failureReason should probably be an int (P2pStatusCode).
logd("Group formation failed on " + mInterface + ": " + failureReason);
mMonitor.broadcastP2pGroupFormationFailure(mInterface, failureReason);
}
/**
* Used to indicate the start of a P2P group.
*
* @param groupIfName Interface name of the group. (For ex: p2p-p2p0-1)
* @param isGo Whether this device is owner of the group.
* @param ssid SSID of the group.
* @param frequency Frequency on which this group is created.
* @param psk PSK used to secure the group.
* @param passphrase PSK passphrase used to secure the group.
* @param goDeviceAddress MAC Address of the owner of this group.
* @param isPersistent Whether this group is persisted or not.
*/
public void onGroupStarted(String groupIfName, boolean isGo, ArrayList ssid,
int frequency, byte[] psk, String passphrase, byte[] goDeviceAddress,
boolean isPersistent) {
if (groupIfName == null) {
Log.e(TAG, "Missing group interface name.");
return;
}
logd("Group " + groupIfName + " started on " + mInterface);
WifiP2pGroup group = new WifiP2pGroup();
group.setInterface(groupIfName);
try {
String quotedSsid = NativeUtil.encodeSsid(ssid);
group.setNetworkName(NativeUtil.removeEnclosingQuotes(quotedSsid));
} catch (Exception e) {
Log.e(TAG, "Could not encode SSID.", e);
return;
}
group.setFrequency(frequency);
group.setIsGroupOwner(isGo);
group.setPassphrase(passphrase);
if (isPersistent) {
group.setNetworkId(WifiP2pGroup.PERSISTENT_NET_ID);
} else {
group.setNetworkId(WifiP2pGroup.TEMPORARY_NET_ID);
}
WifiP2pDevice owner = new WifiP2pDevice();
try {
owner.deviceAddress = NativeUtil.macAddressFromByteArray(goDeviceAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode Group Owner address.", e);
return;
}
group.setOwner(owner);
mMonitor.broadcastP2pGroupStarted(mInterface, group);
}
/**
* Used to indicate the removal of a P2P group.
*
* @param groupIfName Interface name of the group. (For ex: p2p-p2p0-1)
* @param isGo Whether this device is owner of the group.
*/
public void onGroupRemoved(String groupIfName, boolean isGo) {
if (groupIfName == null) {
Log.e(TAG, "Missing group name.");
return;
}
logd("Group " + groupIfName + " removed from " + mInterface);
WifiP2pGroup group = new WifiP2pGroup();
group.setInterface(groupIfName);
group.setIsGroupOwner(isGo);
mMonitor.broadcastP2pGroupRemoved(mInterface, group);
}
/**
* Used to indicate the reception of a P2P invitation.
*
* @param srcAddress MAC address of the device that sent the invitation.
* @param goDeviceAddress MAC Address of the owner of this group.
* @param bssid Bssid of the group.
* @param persistentNetworkId Persistent network Id of the group.
* @param operatingFrequency Frequency on which the invitation was received.
*/
public void onInvitationReceived(byte[] srcAddress, byte[] goDeviceAddress,
byte[] bssid, int persistentNetworkId, int operatingFrequency) {
WifiP2pGroup group = new WifiP2pGroup();
group.setNetworkId(persistentNetworkId);
WifiP2pDevice client = new WifiP2pDevice();
try {
client.deviceAddress = NativeUtil.macAddressFromByteArray(srcAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode MAC address.", e);
return;
}
group.addClient(client);
WifiP2pDevice owner = new WifiP2pDevice();
try {
owner.deviceAddress = NativeUtil.macAddressFromByteArray(goDeviceAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode Group Owner MAC address.", e);
return;
}
group.setOwner(owner);
logd("Invitation received on " + mInterface + ": " + group);
mMonitor.broadcastP2pInvitationReceived(mInterface, group);
}
/**
* Used to indicate the result of the P2P invitation request.
*
* @param bssid Bssid of the group.
* @param status Status of the invitation.
*/
public void onInvitationResult(byte[] bssid, int status) {
logd("Invitation completed with status: " + status);
mMonitor.broadcastP2pInvitationResult(mInterface, halStatusToP2pStatus(status));
}
/**
* Used to indicate the completion of a P2P provision discovery request.
*
* @param p2pDeviceAddress P2P device address.
* @param isRequest Whether we received or sent the provision discovery.
* @param status Status of the provision discovery (SupplicantStatusCode).
* @param configMethods Mask of WPS configuration methods supported.
* Only one configMethod bit should be set per call.
* @param generatedPin 8 digit pin generated.
*/
public void onProvisionDiscoveryCompleted(byte[] p2pDeviceAddress, boolean isRequest,
byte status, short configMethods, String generatedPin) {
if (status != ISupplicantP2pIfaceCallback.P2pProvDiscStatusCode.SUCCESS) {
Log.e(TAG, "Provision discovery failed: " + status);
mMonitor.broadcastP2pProvisionDiscoveryFailure(mInterface);
return;
}
logd("Provision discovery " + (isRequest ? "request" : "response")
+ " for WPS Config method: " + configMethods);
WifiP2pProvDiscEvent event = new WifiP2pProvDiscEvent();
event.device = new WifiP2pDevice();
try {
event.device.deviceAddress = NativeUtil.macAddressFromByteArray(p2pDeviceAddress);
} catch (Exception e) {
Log.e(TAG, "Could not decode MAC address.", e);
return;
}
if ((configMethods & WpsConfigMethods.PUSHBUTTON) != 0) {
if (isRequest) {
event.event = WifiP2pProvDiscEvent.PBC_REQ;
mMonitor.broadcastP2pProvisionDiscoveryPbcRequest(mInterface, event);
} else {
event.event = WifiP2pProvDiscEvent.PBC_RSP;
mMonitor.broadcastP2pProvisionDiscoveryPbcResponse(mInterface, event);
}
} else if (!isRequest && (configMethods & WpsConfigMethods.KEYPAD) != 0) {
event.event = WifiP2pProvDiscEvent.SHOW_PIN;
event.pin = generatedPin;
mMonitor.broadcastP2pProvisionDiscoveryShowPin(mInterface, event);
} else if (!isRequest && (configMethods & WpsConfigMethods.DISPLAY) != 0) {
event.event = WifiP2pProvDiscEvent.ENTER_PIN;
mMonitor.broadcastP2pProvisionDiscoveryEnterPin(mInterface, event);
} else if (isRequest && (configMethods & WpsConfigMethods.DISPLAY) != 0) {
event.event = WifiP2pProvDiscEvent.SHOW_PIN;
event.pin = generatedPin;
mMonitor.broadcastP2pProvisionDiscoveryShowPin(mInterface, event);
} else if (isRequest && (configMethods & WpsConfigMethods.KEYPAD) != 0) {
event.event = WifiP2pProvDiscEvent.ENTER_PIN;
mMonitor.broadcastP2pProvisionDiscoveryEnterPin(mInterface, event);
} else {
Log.e(TAG, "Unsupported config methods: " + configMethods);
}
}
/**
* Used to indicate the reception of a P2P service discovery response.
*
* @param srcAddress MAC address of the device that sent the service discovery.
* @param updateIndicator Service update indicator. Refer to section 3.1.3 of
* Wifi P2P Technical specification v1.2.
* @param tlvs Refer to section 3.1.3.1 of Wifi P2P Technical specification v1.2.
*/
public void onServiceDiscoveryResponse(byte[] srcAddress, short updateIndicator,
ArrayList tlvs) {
List response = null;
logd("Service discovery response received on " + mInterface);
try {
String srcAddressStr = NativeUtil.macAddressFromByteArray(srcAddress);
// updateIndicator is not used
response = WifiP2pServiceResponse.newInstance(srcAddressStr,
NativeUtil.byteArrayFromArrayList(tlvs));
} catch (Exception e) {
Log.e(TAG, "Could not process service discovery response.", e);
return;
}
mMonitor.broadcastP2pServiceDiscoveryResponse(mInterface, response);
}
private WifiP2pDevice createStaEventDevice(byte[] srcAddress, byte[] p2pDeviceAddress) {
WifiP2pDevice device = new WifiP2pDevice();
byte[] deviceAddressBytes;
// Legacy STAs may not supply a p2pDeviceAddress (signaled by a zero'd p2pDeviceAddress)
// In this case, use srcAddress instead
if (!Arrays.equals(NativeUtil.ANY_MAC_BYTES, p2pDeviceAddress)) {
deviceAddressBytes = p2pDeviceAddress;
} else {
deviceAddressBytes = srcAddress;
}
try {
device.deviceAddress = NativeUtil.macAddressFromByteArray(deviceAddressBytes);
} catch (Exception e) {
Log.e(TAG, "Could not decode MAC address", e);
return null;
}
return device;
}
/**
* Used to indicate when a STA device is connected to this device.
*
* @param srcAddress MAC address of the device that was authorized.
* @param p2pDeviceAddress P2P device address.
*/
public void onStaAuthorized(byte[] srcAddress, byte[] p2pDeviceAddress) {
logd("STA authorized on " + mInterface);
WifiP2pDevice device = createStaEventDevice(srcAddress, p2pDeviceAddress);
if (device == null) {
return;
}
mMonitor.broadcastP2pApStaConnected(mInterface, device);
}
/**
* Used to indicate when a STA device is disconnected from this device.
*
* @param srcAddress MAC address of the device that was deauthorized.
* @param p2pDeviceAddress P2P device address.
*/
public void onStaDeauthorized(byte[] srcAddress, byte[] p2pDeviceAddress) {
logd("STA deauthorized on " + mInterface);
WifiP2pDevice device = createStaEventDevice(srcAddress, p2pDeviceAddress);
if (device == null) {
return;
}
mMonitor.broadcastP2pApStaDisconnected(mInterface, device);
}
private static P2pStatus halStatusToP2pStatus(int status) {
P2pStatus result = P2pStatus.UNKNOWN;
switch (status) {
case P2pStatusCode.SUCCESS:
case P2pStatusCode.SUCCESS_DEFERRED:
result = P2pStatus.SUCCESS;
break;
case P2pStatusCode.FAIL_INFO_CURRENTLY_UNAVAILABLE:
result = P2pStatus.INFORMATION_IS_CURRENTLY_UNAVAILABLE;
break;
case P2pStatusCode.FAIL_INCOMPATIBLE_PARAMS:
result = P2pStatus.INCOMPATIBLE_PARAMETERS;
break;
case P2pStatusCode.FAIL_LIMIT_REACHED:
result = P2pStatus.LIMIT_REACHED;
break;
case P2pStatusCode.FAIL_INVALID_PARAMS:
result = P2pStatus.INVALID_PARAMETER;
break;
case P2pStatusCode.FAIL_UNABLE_TO_ACCOMMODATE:
result = P2pStatus.UNABLE_TO_ACCOMMODATE_REQUEST;
break;
case P2pStatusCode.FAIL_PREV_PROTOCOL_ERROR:
result = P2pStatus.PREVIOUS_PROTOCOL_ERROR;
break;
case P2pStatusCode.FAIL_NO_COMMON_CHANNELS:
result = P2pStatus.NO_COMMON_CHANNEL;
break;
case P2pStatusCode.FAIL_UNKNOWN_GROUP:
result = P2pStatus.UNKNOWN_P2P_GROUP;
break;
case P2pStatusCode.FAIL_BOTH_GO_INTENT_15:
result = P2pStatus.BOTH_GO_INTENT_15;
break;
case P2pStatusCode.FAIL_INCOMPATIBLE_PROV_METHOD:
result = P2pStatus.INCOMPATIBLE_PROVISIONING_METHOD;
break;
case P2pStatusCode.FAIL_REJECTED_BY_USER:
result = P2pStatus.REJECTED_BY_USER;
break;
}
return result;
}
}
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