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.PhoneConstants; 28 import com.android.internal.telephony.dataconnection.DcFailCause; 29 30 import java.net.Inet4Address; 31 import java.net.InetAddress; 32 import java.net.UnknownHostException; 33 34 /** 35 * This is RIL_Data_Call_Response_v5 from ril.h 36 */ 37 public class DataCallResponse { 38 private final boolean DBG = true; 39 private final String LOG_TAG = "DataCallResponse"; 40 41 public int version = 0; 42 public int status = 0; 43 public int cid = 0; 44 public int active = 0; 45 public String type = ""; 46 public String ifname = ""; 47 public String [] addresses = new String[0]; 48 public String [] dnses = new String[0]; 49 public String[] gateways = new String[0]; 50 public int suggestedRetryTime = -1; 51 public String [] pcscf = new String[0]; 52 public int mtu = PhoneConstants.UNSET_MTU; 53 54 /** 55 * Class returned by onSetupConnectionCompleted. 56 */ 57 public enum SetupResult { 58 SUCCESS, 59 ERR_BadCommand, 60 ERR_UnacceptableParameter, 61 ERR_GetLastErrorFromRil, 62 ERR_Stale, 63 ERR_RilError; 64 65 public DcFailCause mFailCause; 66 67 SetupResult() { 68 mFailCause = DcFailCause.fromInt(0); 69 } 70 71 @Override 72 public String toString() { 73 return name() + " SetupResult.mFailCause=" + mFailCause; 74 } 75 } 76 77 @Override 78 public String toString() { 79 StringBuffer sb = new StringBuffer(); 80 sb.append("DataCallResponse: {") 81 .append("version=").append(version) 82 .append(" status=").append(status) 83 .append(" retry=").append(suggestedRetryTime) 84 .append(" cid=").append(cid) 85 .append(" active=").append(active) 86 .append(" type=").append(type) 87 .append(" ifname=").append(ifname) 88 .append(" mtu=").append(mtu) 89 .append(" addresses=["); 90 for (String addr : addresses) { 91 sb.append(addr); 92 sb.append(","); 93 } 94 if (addresses.length > 0) sb.deleteCharAt(sb.length()-1); 95 sb.append("] dnses=["); 96 for (String addr : dnses) { 97 sb.append(addr); 98 sb.append(","); 99 } 100 if (dnses.length > 0) sb.deleteCharAt(sb.length()-1); 101 sb.append("] gateways=["); 102 for (String addr : gateways) { 103 sb.append(addr); 104 sb.append(","); 105 } 106 if (gateways.length > 0) sb.deleteCharAt(sb.length()-1); 107 sb.append("] pcscf=["); 108 for (String addr : pcscf) { 109 sb.append(addr); 110 sb.append(","); 111 } 112 if (pcscf.length > 0) sb.deleteCharAt(sb.length()-1); 113 sb.append("]}"); 114 return sb.toString(); 115 } 116 117 public SetupResult setLinkProperties(LinkProperties linkProperties, 118 boolean okToUseSystemPropertyDns) { 119 SetupResult result; 120 121 // Start with clean network properties and if we have 122 // a failure we'll clear again at the bottom of this code. 123 if (linkProperties == null) 124 linkProperties = new LinkProperties(); 125 else 126 linkProperties.clear(); 127 128 if (status == DcFailCause.NONE.getErrorCode()) { 129 String propertyPrefix = "net." + ifname + "."; 130 131 try { 132 // set interface name 133 linkProperties.setInterfaceName(ifname); 134 135 // set link addresses 136 if (addresses != null && addresses.length > 0) { 137 for (String addr : addresses) { 138 addr = addr.trim(); 139 if (addr.isEmpty()) continue; 140 LinkAddress la; 141 int addrPrefixLen; 142 143 String [] ap = addr.split("/"); 144 if (ap.length == 2) { 145 addr = ap[0]; 146 addrPrefixLen = Integer.parseInt(ap[1]); 147 } else { 148 addrPrefixLen = 0; 149 } 150 InetAddress ia; 151 try { 152 ia = NetworkUtils.numericToInetAddress(addr); 153 } catch (IllegalArgumentException e) { 154 throw new UnknownHostException("Non-numeric ip addr=" + addr); 155 } 156 if (! ia.isAnyLocalAddress()) { 157 if (addrPrefixLen == 0) { 158 // Assume point to point 159 addrPrefixLen = (ia instanceof Inet4Address) ? 32 : 128; 160 } 161 if (DBG) Rlog.d(LOG_TAG, "addr/pl=" + addr + "/" + addrPrefixLen); 162 la = new LinkAddress(ia, addrPrefixLen); 163 linkProperties.addLinkAddress(la); 164 } 165 } 166 } else { 167 throw new UnknownHostException("no address for ifname=" + ifname); 168 } 169 170 // set dns servers 171 if (dnses != null && dnses.length > 0) { 172 for (String addr : dnses) { 173 addr = addr.trim(); 174 if (addr.isEmpty()) continue; 175 InetAddress ia; 176 try { 177 ia = NetworkUtils.numericToInetAddress(addr); 178 } catch (IllegalArgumentException e) { 179 throw new UnknownHostException("Non-numeric dns addr=" + addr); 180 } 181 if (! ia.isAnyLocalAddress()) { 182 linkProperties.addDnsServer(ia); 183 } 184 } 185 } else if (okToUseSystemPropertyDns){ 186 String dnsServers[] = new String[2]; 187 dnsServers[0] = SystemProperties.get(propertyPrefix + "dns1"); 188 dnsServers[1] = SystemProperties.get(propertyPrefix + "dns2"); 189 for (String dnsAddr : dnsServers) { 190 dnsAddr = dnsAddr.trim(); 191 if (dnsAddr.isEmpty()) continue; 192 InetAddress ia; 193 try { 194 ia = NetworkUtils.numericToInetAddress(dnsAddr); 195 } catch (IllegalArgumentException e) { 196 throw new UnknownHostException("Non-numeric dns addr=" + dnsAddr); 197 } 198 if (! ia.isAnyLocalAddress()) { 199 linkProperties.addDnsServer(ia); 200 } 201 } 202 } else { 203 throw new UnknownHostException("Empty dns response and no system default dns"); 204 } 205 206 // set gateways 207 if ((gateways == null) || (gateways.length == 0)) { 208 String sysGateways = SystemProperties.get(propertyPrefix + "gw"); 209 if (sysGateways != null) { 210 gateways = sysGateways.split(" "); 211 } else { 212 gateways = new String[0]; 213 } 214 } 215 for (String addr : gateways) { 216 addr = addr.trim(); 217 if (addr.isEmpty()) continue; 218 InetAddress ia; 219 try { 220 ia = NetworkUtils.numericToInetAddress(addr); 221 } catch (IllegalArgumentException e) { 222 throw new UnknownHostException("Non-numeric gateway addr=" + addr); 223 } 224 // Allow 0.0.0.0 or :: as a gateway; this indicates a point-to-point interface. 225 linkProperties.addRoute(new RouteInfo(ia)); 226 } 227 228 // set interface MTU 229 // this may clobber the setting read from the APN db, but that's ok 230 linkProperties.setMtu(mtu); 231 232 result = SetupResult.SUCCESS; 233 } catch (UnknownHostException e) { 234 Rlog.d(LOG_TAG, "setLinkProperties: UnknownHostException " + e); 235 e.printStackTrace(); 236 result = SetupResult.ERR_UnacceptableParameter; 237 } 238 } else { 239 if (version < 4) { 240 result = SetupResult.ERR_GetLastErrorFromRil; 241 } else { 242 result = SetupResult.ERR_RilError; 243 } 244 } 245 246 // An error occurred so clear properties 247 if (result != SetupResult.SUCCESS) { 248 if(DBG) { 249 Rlog.d(LOG_TAG, "setLinkProperties: error clearing LinkProperties " + 250 "status=" + status + " result=" + result); 251 } 252 linkProperties.clear(); 253 } 254 255 return result; 256 } 257 } 258
