1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 package android.os; 17 18 import java.net.InetAddress; 19 import java.net.Inet4Address; 20 import java.net.Inet6Address; 21 import java.net.InetSocketAddress; 22 import static libcore.io.OsConstants.*; 23 24 class CommonTimeUtils { 25 /** 26 * Successful operation. 27 */ 28 public static final int SUCCESS = 0; 29 /** 30 * Unspecified error. 31 */ 32 public static final int ERROR = -1; 33 /** 34 * Operation failed due to bad parameter value. 35 */ 36 public static final int ERROR_BAD_VALUE = -4; 37 /** 38 * Operation failed due to dead remote object. 39 */ 40 public static final int ERROR_DEAD_OBJECT = -7; 41 42 public CommonTimeUtils(IBinder remote, String interfaceDesc) { 43 mRemote = remote; 44 mInterfaceDesc = interfaceDesc; 45 } 46 47 public int transactGetInt(int method_code, int error_ret_val) 48 throws RemoteException { 49 android.os.Parcel data = android.os.Parcel.obtain(); 50 android.os.Parcel reply = android.os.Parcel.obtain(); 51 int ret_val; 52 53 try { 54 int res; 55 data.writeInterfaceToken(mInterfaceDesc); 56 mRemote.transact(method_code, data, reply, 0); 57 58 res = reply.readInt(); 59 ret_val = (0 == res) ? reply.readInt() : error_ret_val; 60 } 61 finally { 62 reply.recycle(); 63 data.recycle(); 64 } 65 66 return ret_val; 67 } 68 69 public int transactSetInt(int method_code, int val) { 70 android.os.Parcel data = android.os.Parcel.obtain(); 71 android.os.Parcel reply = android.os.Parcel.obtain(); 72 73 try { 74 data.writeInterfaceToken(mInterfaceDesc); 75 data.writeInt(val); 76 mRemote.transact(method_code, data, reply, 0); 77 78 return reply.readInt(); 79 } 80 catch (RemoteException e) { 81 return ERROR_DEAD_OBJECT; 82 } 83 finally { 84 reply.recycle(); 85 data.recycle(); 86 } 87 } 88 89 public long transactGetLong(int method_code, long error_ret_val) 90 throws RemoteException { 91 android.os.Parcel data = android.os.Parcel.obtain(); 92 android.os.Parcel reply = android.os.Parcel.obtain(); 93 long ret_val; 94 95 try { 96 int res; 97 data.writeInterfaceToken(mInterfaceDesc); 98 mRemote.transact(method_code, data, reply, 0); 99 100 res = reply.readInt(); 101 ret_val = (0 == res) ? reply.readLong() : error_ret_val; 102 } 103 finally { 104 reply.recycle(); 105 data.recycle(); 106 } 107 108 return ret_val; 109 } 110 111 public int transactSetLong(int method_code, long val) { 112 android.os.Parcel data = android.os.Parcel.obtain(); 113 android.os.Parcel reply = android.os.Parcel.obtain(); 114 115 try { 116 data.writeInterfaceToken(mInterfaceDesc); 117 data.writeLong(val); 118 mRemote.transact(method_code, data, reply, 0); 119 120 return reply.readInt(); 121 } 122 catch (RemoteException e) { 123 return ERROR_DEAD_OBJECT; 124 } 125 finally { 126 reply.recycle(); 127 data.recycle(); 128 } 129 } 130 131 public String transactGetString(int method_code, String error_ret_val) 132 throws RemoteException { 133 android.os.Parcel data = android.os.Parcel.obtain(); 134 android.os.Parcel reply = android.os.Parcel.obtain(); 135 String ret_val; 136 137 try { 138 int res; 139 data.writeInterfaceToken(mInterfaceDesc); 140 mRemote.transact(method_code, data, reply, 0); 141 142 res = reply.readInt(); 143 ret_val = (0 == res) ? reply.readString() : error_ret_val; 144 } 145 finally { 146 reply.recycle(); 147 data.recycle(); 148 } 149 150 return ret_val; 151 } 152 153 public int transactSetString(int method_code, String val) { 154 android.os.Parcel data = android.os.Parcel.obtain(); 155 android.os.Parcel reply = android.os.Parcel.obtain(); 156 157 try { 158 data.writeInterfaceToken(mInterfaceDesc); 159 data.writeString(val); 160 mRemote.transact(method_code, data, reply, 0); 161 162 return reply.readInt(); 163 } 164 catch (RemoteException e) { 165 return ERROR_DEAD_OBJECT; 166 } 167 finally { 168 reply.recycle(); 169 data.recycle(); 170 } 171 } 172 173 public InetSocketAddress transactGetSockaddr(int method_code) 174 throws RemoteException { 175 android.os.Parcel data = android.os.Parcel.obtain(); 176 android.os.Parcel reply = android.os.Parcel.obtain(); 177 InetSocketAddress ret_val = null; 178 179 try { 180 int res; 181 data.writeInterfaceToken(mInterfaceDesc); 182 mRemote.transact(method_code, data, reply, 0); 183 184 res = reply.readInt(); 185 if (0 == res) { 186 int type; 187 int port = 0; 188 String addrStr = null; 189 190 type = reply.readInt(); 191 192 if (AF_INET == type) { 193 int addr = reply.readInt(); 194 port = reply.readInt(); 195 addrStr = String.format("%d.%d.%d.%d", (addr >> 24) & 0xFF, 196 (addr >> 16) & 0xFF, 197 (addr >> 8) & 0xFF, 198 addr & 0xFF); 199 } else if (AF_INET6 == type) { 200 int addr1 = reply.readInt(); 201 int addr2 = reply.readInt(); 202 int addr3 = reply.readInt(); 203 int addr4 = reply.readInt(); 204 205 port = reply.readInt(); 206 207 int flowinfo = reply.readInt(); 208 int scope_id = reply.readInt(); 209 210 addrStr = String.format("[%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X]", 211 (addr1 >> 16) & 0xFFFF, addr1 & 0xFFFF, 212 (addr2 >> 16) & 0xFFFF, addr2 & 0xFFFF, 213 (addr3 >> 16) & 0xFFFF, addr3 & 0xFFFF, 214 (addr4 >> 16) & 0xFFFF, addr4 & 0xFFFF); 215 } 216 217 if (null != addrStr) { 218 ret_val = new InetSocketAddress(addrStr, port); 219 } 220 } 221 } 222 finally { 223 reply.recycle(); 224 data.recycle(); 225 } 226 227 return ret_val; 228 } 229 230 public int transactSetSockaddr(int method_code, InetSocketAddress addr) { 231 android.os.Parcel data = android.os.Parcel.obtain(); 232 android.os.Parcel reply = android.os.Parcel.obtain(); 233 int ret_val = ERROR; 234 235 try { 236 data.writeInterfaceToken(mInterfaceDesc); 237 238 if (null == addr) { 239 data.writeInt(0); 240 } else { 241 data.writeInt(1); 242 final InetAddress a = addr.getAddress(); 243 final byte[] b = a.getAddress(); 244 final int p = addr.getPort(); 245 246 if (a instanceof Inet4Address) { 247 int v4addr = (((int)b[0] & 0xFF) << 24) | 248 (((int)b[1] & 0xFF) << 16) | 249 (((int)b[2] & 0xFF) << 8) | 250 ((int)b[3] & 0xFF); 251 252 data.writeInt(AF_INET); 253 data.writeInt(v4addr); 254 data.writeInt(p); 255 } else 256 if (a instanceof Inet6Address) { 257 int i; 258 Inet6Address v6 = (Inet6Address)a; 259 data.writeInt(AF_INET6); 260 for (i = 0; i < 4; ++i) { 261 int aword = (((int)b[(i*4) + 0] & 0xFF) << 24) | 262 (((int)b[(i*4) + 1] & 0xFF) << 16) | 263 (((int)b[(i*4) + 2] & 0xFF) << 8) | 264 ((int)b[(i*4) + 3] & 0xFF); 265 data.writeInt(aword); 266 } 267 data.writeInt(p); 268 data.writeInt(0); // flow info 269 data.writeInt(v6.getScopeId()); 270 } else { 271 return ERROR_BAD_VALUE; 272 } 273 } 274 275 mRemote.transact(method_code, data, reply, 0); 276 ret_val = reply.readInt(); 277 } 278 catch (RemoteException e) { 279 ret_val = ERROR_DEAD_OBJECT; 280 } 281 finally { 282 reply.recycle(); 283 data.recycle(); 284 } 285 286 return ret_val; 287 } 288 289 private IBinder mRemote; 290 private String mInterfaceDesc; 291 }; 292
