/*
* Copyright (C) 2009 Qualcomm Innovation Center, Inc. All Rights Reserved.
* Copyright (C) 2009 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.internal.telephony.dataconnection;
import android.net.LinkAddress;
import android.net.LinkProperties;
import android.net.NetworkUtils;
import android.net.RouteInfo;
import android.os.SystemProperties;
import android.telephony.Rlog;
import com.android.internal.telephony.PhoneConstants;
import com.android.internal.telephony.dataconnection.DcFailCause;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.UnknownHostException;
/**
* This is RIL_Data_Call_Response_v5 from ril.h
*/
public class DataCallResponse {
private final boolean DBG = true;
private final String LOG_TAG = "DataCallResponse";
public int version = 0;
public int status = 0;
public int cid = 0;
public int active = 0;
public String type = "";
public String ifname = "";
public String [] addresses = new String[0];
public String [] dnses = new String[0];
public String[] gateways = new String[0];
public int suggestedRetryTime = -1;
public String [] pcscf = new String[0];
public int mtu = PhoneConstants.UNSET_MTU;
/**
* Class returned by onSetupConnectionCompleted.
*/
public enum SetupResult {
SUCCESS,
ERR_BadCommand,
ERR_UnacceptableParameter,
ERR_GetLastErrorFromRil,
ERR_Stale,
ERR_RilError;
public DcFailCause mFailCause;
SetupResult() {
mFailCause = DcFailCause.fromInt(0);
}
@Override
public String toString() {
return name() + " SetupResult.mFailCause=" + mFailCause;
}
}
@Override
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append("DataCallResponse: {")
.append("version=").append(version)
.append(" status=").append(status)
.append(" retry=").append(suggestedRetryTime)
.append(" cid=").append(cid)
.append(" active=").append(active)
.append(" type=").append(type)
.append(" ifname=").append(ifname)
.append(" mtu=").append(mtu)
.append(" addresses=[");
for (String addr : addresses) {
sb.append(addr);
sb.append(",");
}
if (addresses.length > 0) sb.deleteCharAt(sb.length()-1);
sb.append("] dnses=[");
for (String addr : dnses) {
sb.append(addr);
sb.append(",");
}
if (dnses.length > 0) sb.deleteCharAt(sb.length()-1);
sb.append("] gateways=[");
for (String addr : gateways) {
sb.append(addr);
sb.append(",");
}
if (gateways.length > 0) sb.deleteCharAt(sb.length()-1);
sb.append("] pcscf=[");
for (String addr : pcscf) {
sb.append(addr);
sb.append(",");
}
if (pcscf.length > 0) sb.deleteCharAt(sb.length()-1);
sb.append("]}");
return sb.toString();
}
public SetupResult setLinkProperties(LinkProperties linkProperties,
boolean okToUseSystemPropertyDns) {
SetupResult result;
// Start with clean network properties and if we have
// a failure we'll clear again at the bottom of this code.
if (linkProperties == null)
linkProperties = new LinkProperties();
else
linkProperties.clear();
if (status == DcFailCause.NONE.getErrorCode()) {
String propertyPrefix = "net." + ifname + ".";
try {
// set interface name
linkProperties.setInterfaceName(ifname);
// set link addresses
if (addresses != null && addresses.length > 0) {
for (String addr : addresses) {
addr = addr.trim();
if (addr.isEmpty()) continue;
LinkAddress la;
int addrPrefixLen;
String [] ap = addr.split("/");
if (ap.length == 2) {
addr = ap[0];
addrPrefixLen = Integer.parseInt(ap[1]);
} else {
addrPrefixLen = 0;
}
InetAddress ia;
try {
ia = NetworkUtils.numericToInetAddress(addr);
} catch (IllegalArgumentException e) {
throw new UnknownHostException("Non-numeric ip addr=" + addr);
}
if (! ia.isAnyLocalAddress()) {
if (addrPrefixLen == 0) {
// Assume point to point
addrPrefixLen = (ia instanceof Inet4Address) ? 32 : 128;
}
if (DBG) Rlog.d(LOG_TAG, "addr/pl=" + addr + "/" + addrPrefixLen);
la = new LinkAddress(ia, addrPrefixLen);
linkProperties.addLinkAddress(la);
}
}
} else {
throw new UnknownHostException("no address for ifname=" + ifname);
}
// set dns servers
if (dnses != null && dnses.length > 0) {
for (String addr : dnses) {
addr = addr.trim();
if (addr.isEmpty()) continue;
InetAddress ia;
try {
ia = NetworkUtils.numericToInetAddress(addr);
} catch (IllegalArgumentException e) {
throw new UnknownHostException("Non-numeric dns addr=" + addr);
}
if (! ia.isAnyLocalAddress()) {
linkProperties.addDnsServer(ia);
}
}
} else if (okToUseSystemPropertyDns){
String dnsServers[] = new String[2];
dnsServers[0] = SystemProperties.get(propertyPrefix + "dns1");
dnsServers[1] = SystemProperties.get(propertyPrefix + "dns2");
for (String dnsAddr : dnsServers) {
dnsAddr = dnsAddr.trim();
if (dnsAddr.isEmpty()) continue;
InetAddress ia;
try {
ia = NetworkUtils.numericToInetAddress(dnsAddr);
} catch (IllegalArgumentException e) {
throw new UnknownHostException("Non-numeric dns addr=" + dnsAddr);
}
if (! ia.isAnyLocalAddress()) {
linkProperties.addDnsServer(ia);
}
}
} else {
throw new UnknownHostException("Empty dns response and no system default dns");
}
// set gateways
if ((gateways == null) || (gateways.length == 0)) {
String sysGateways = SystemProperties.get(propertyPrefix + "gw");
if (sysGateways != null) {
gateways = sysGateways.split(" ");
} else {
gateways = new String[0];
}
}
for (String addr : gateways) {
addr = addr.trim();
if (addr.isEmpty()) continue;
InetAddress ia;
try {
ia = NetworkUtils.numericToInetAddress(addr);
} catch (IllegalArgumentException e) {
throw new UnknownHostException("Non-numeric gateway addr=" + addr);
}
// Allow 0.0.0.0 or :: as a gateway; this indicates a point-to-point interface.
linkProperties.addRoute(new RouteInfo(ia));
}
// set interface MTU
// this may clobber the setting read from the APN db, but that's ok
linkProperties.setMtu(mtu);
result = SetupResult.SUCCESS;
} catch (UnknownHostException e) {
Rlog.d(LOG_TAG, "setLinkProperties: UnknownHostException " + e);
e.printStackTrace();
result = SetupResult.ERR_UnacceptableParameter;
}
} else {
if (version < 4) {
result = SetupResult.ERR_GetLastErrorFromRil;
} else {
result = SetupResult.ERR_RilError;
}
}
// An error occurred so clear properties
if (result != SetupResult.SUCCESS) {
if(DBG) {
Rlog.d(LOG_TAG, "setLinkProperties: error clearing LinkProperties " +
"status=" + status + " result=" + result);
}
linkProperties.clear();
}
return result;
}
}
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