1 /* 2 * Copyright (C) 2009 Qualcomm Innovation Center, Inc. All Rights Reserved. 3 * Copyright (C) 2009 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.internal.telephony.dataconnection; 19 20 import android.net.LinkAddress; 21 import android.net.LinkProperties; 22 import android.net.NetworkUtils; 23 import android.net.RouteInfo; 24 import android.os.SystemProperties; 25 import android.telephony.Rlog; 26 27 import com.android.internal.telephony.dataconnection.DcFailCause; 28 29 import java.net.Inet4Address; 30 import java.net.InetAddress; 31 import java.net.UnknownHostException; 32 33 /** 34 * This is RIL_Data_Call_Response_v5 from ril.h 35 */ 36 public class DataCallResponse { 37 private final boolean DBG = true; 38 private final String LOG_TAG = "DataCallResponse"; 39 40 public int version = 0; 41 public int status = 0; 42 public int cid = 0; 43 public int active = 0; 44 public String type = ""; 45 public String ifname = ""; 46 public String [] addresses = new String[0]; 47 public String [] dnses = new String[0]; 48 public String[] gateways = new String[0]; 49 public int suggestedRetryTime = -1; 50 51 /** 52 * Class returned by onSetupConnectionCompleted. 53 */ 54 public enum SetupResult { 55 SUCCESS, 56 ERR_BadCommand, 57 ERR_UnacceptableParameter, 58 ERR_GetLastErrorFromRil, 59 ERR_Stale, 60 ERR_RilError; 61 62 public DcFailCause mFailCause; 63 64 SetupResult() { 65 mFailCause = DcFailCause.fromInt(0); 66 } 67 68 @Override 69 public String toString() { 70 return name() + " SetupResult.mFailCause=" + mFailCause; 71 } 72 } 73 74 @Override 75 public String toString() { 76 StringBuffer sb = new StringBuffer(); 77 sb.append("DataCallResponse: {") 78 .append("version=").append(version) 79 .append(" status=").append(status) 80 .append(" retry=").append(suggestedRetryTime) 81 .append(" cid=").append(cid) 82 .append(" active=").append(active) 83 .append(" type=").append(type) 84 .append("' ifname='").append(ifname); 85 sb.append("' addresses=["); 86 for (String addr : addresses) { 87 sb.append(addr); 88 sb.append(","); 89 } 90 if (addresses.length > 0) sb.deleteCharAt(sb.length()-1); 91 sb.append("] dnses=["); 92 for (String addr : dnses) { 93 sb.append(addr); 94 sb.append(","); 95 } 96 if (dnses.length > 0) sb.deleteCharAt(sb.length()-1); 97 sb.append("] gateways=["); 98 for (String addr : gateways) { 99 sb.append(addr); 100 sb.append(","); 101 } 102 if (gateways.length > 0) sb.deleteCharAt(sb.length()-1); 103 sb.append("]}"); 104 return sb.toString(); 105 } 106 107 public SetupResult setLinkProperties(LinkProperties linkProperties, 108 boolean okToUseSystemPropertyDns) { 109 SetupResult result; 110 111 // Start with clean network properties and if we have 112 // a failure we'll clear again at the bottom of this code. 113 if (linkProperties == null) 114 linkProperties = new LinkProperties(); 115 else 116 linkProperties.clear(); 117 118 if (status == DcFailCause.NONE.getErrorCode()) { 119 String propertyPrefix = "net." + ifname + "."; 120 121 try { 122 // set interface name 123 linkProperties.setInterfaceName(ifname); 124 125 // set link addresses 126 if (addresses != null && addresses.length > 0) { 127 for (String addr : addresses) { 128 addr = addr.trim(); 129 if (addr.isEmpty()) continue; 130 LinkAddress la; 131 int addrPrefixLen; 132 133 String [] ap = addr.split("/"); 134 if (ap.length == 2) { 135 addr = ap[0]; 136 addrPrefixLen = Integer.parseInt(ap[1]); 137 } else { 138 addrPrefixLen = 0; 139 } 140 InetAddress ia; 141 try { 142 ia = NetworkUtils.numericToInetAddress(addr); 143 } catch (IllegalArgumentException e) { 144 throw new UnknownHostException("Non-numeric ip addr=" + addr); 145 } 146 if (! ia.isAnyLocalAddress()) { 147 if (addrPrefixLen == 0) { 148 // Assume point to point 149 addrPrefixLen = (ia instanceof Inet4Address) ? 32 : 128; 150 } 151 if (DBG) Rlog.d(LOG_TAG, "addr/pl=" + addr + "/" + addrPrefixLen); 152 la = new LinkAddress(ia, addrPrefixLen); 153 linkProperties.addLinkAddress(la); 154 } 155 } 156 } else { 157 throw new UnknownHostException("no address for ifname=" + ifname); 158 } 159 160 // set dns servers 161 if (dnses != null && dnses.length > 0) { 162 for (String addr : dnses) { 163 addr = addr.trim(); 164 if (addr.isEmpty()) continue; 165 InetAddress ia; 166 try { 167 ia = NetworkUtils.numericToInetAddress(addr); 168 } catch (IllegalArgumentException e) { 169 throw new UnknownHostException("Non-numeric dns addr=" + addr); 170 } 171 if (! ia.isAnyLocalAddress()) { 172 linkProperties.addDns(ia); 173 } 174 } 175 } else if (okToUseSystemPropertyDns){ 176 String dnsServers[] = new String[2]; 177 dnsServers[0] = SystemProperties.get(propertyPrefix + "dns1"); 178 dnsServers[1] = SystemProperties.get(propertyPrefix + "dns2"); 179 for (String dnsAddr : dnsServers) { 180 dnsAddr = dnsAddr.trim(); 181 if (dnsAddr.isEmpty()) continue; 182 InetAddress ia; 183 try { 184 ia = NetworkUtils.numericToInetAddress(dnsAddr); 185 } catch (IllegalArgumentException e) { 186 throw new UnknownHostException("Non-numeric dns addr=" + dnsAddr); 187 } 188 if (! ia.isAnyLocalAddress()) { 189 linkProperties.addDns(ia); 190 } 191 } 192 } else { 193 throw new UnknownHostException("Empty dns response and no system default dns"); 194 } 195 196 // set gateways 197 if ((gateways == null) || (gateways.length == 0)) { 198 String sysGateways = SystemProperties.get(propertyPrefix + "gw"); 199 if (sysGateways != null) { 200 gateways = sysGateways.split(" "); 201 } else { 202 gateways = new String[0]; 203 } 204 } 205 for (String addr : gateways) { 206 addr = addr.trim(); 207 if (addr.isEmpty()) continue; 208 InetAddress ia; 209 try { 210 ia = NetworkUtils.numericToInetAddress(addr); 211 } catch (IllegalArgumentException e) { 212 throw new UnknownHostException("Non-numeric gateway addr=" + addr); 213 } 214 // Allow 0.0.0.0 or :: as a gateway; this indicates a point-to-point interface. 215 linkProperties.addRoute(new RouteInfo(ia)); 216 } 217 218 result = SetupResult.SUCCESS; 219 } catch (UnknownHostException e) { 220 Rlog.d(LOG_TAG, "setLinkProperties: UnknownHostException " + e); 221 e.printStackTrace(); 222 result = SetupResult.ERR_UnacceptableParameter; 223 } 224 } else { 225 if (version < 4) { 226 result = SetupResult.ERR_GetLastErrorFromRil; 227 } else { 228 result = SetupResult.ERR_RilError; 229 } 230 } 231 232 // An error occurred so clear properties 233 if (result != SetupResult.SUCCESS) { 234 if(DBG) { 235 Rlog.d(LOG_TAG, "setLinkProperties: error clearing LinkProperties " + 236 "status=" + status + " result=" + result); 237 } 238 linkProperties.clear(); 239 } 240 241 return result; 242 } 243 } 244
