The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008, 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 | |
| 17 | #define LOG_TAG "NetUtils" |
| 18 | |
| 19 | #include "jni.h" |
| 20 | #include <utils/misc.h> |
| 21 | #include <android_runtime/AndroidRuntime.h> |
| 22 | #include <utils/Log.h> |
| 23 | #include <arpa/inet.h> |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 24 | #include <cutils/properties.h> |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 25 | |
| 26 | extern "C" { |
Mike Lockwood | 0900f36 | 2009-07-10 17:24:07 -0400 | [diff] [blame] | 27 | int ifc_enable(const char *ifname); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 28 | int ifc_disable(const char *ifname); |
Robert Greenwalt | 585ac0f | 2010-08-27 09:24:29 -0700 | [diff] [blame] | 29 | int ifc_add_route(const char *ifname, const char *destStr, uint32_t prefixLen, const char *gwStr); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 30 | int ifc_remove_host_routes(const char *ifname); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 31 | int ifc_get_default_route(const char *ifname); |
| 32 | int ifc_remove_default_route(const char *ifname); |
| 33 | int ifc_reset_connections(const char *ifname); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 34 | |
| 35 | int dhcp_do_request(const char *ifname, |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 36 | const char *ipaddr, |
| 37 | const char *gateway, |
| 38 | uint32_t *prefixLength, |
| 39 | const char *dns1, |
| 40 | const char *dns2, |
| 41 | const char *server, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 42 | uint32_t *lease); |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 43 | |
| 44 | int dhcp_do_request_renew(const char *ifname, |
| 45 | const char *ipaddr, |
| 46 | const char *gateway, |
| 47 | uint32_t *prefixLength, |
| 48 | const char *dns1, |
| 49 | const char *dns2, |
| 50 | const char *server, |
| 51 | uint32_t *lease); |
| 52 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 53 | int dhcp_stop(const char *ifname); |
| 54 | int dhcp_release_lease(const char *ifname); |
| 55 | char *dhcp_get_errmsg(); |
| 56 | } |
| 57 | |
| 58 | #define NETUTILS_PKG_NAME "android/net/NetworkUtils" |
| 59 | |
| 60 | namespace android { |
| 61 | |
| 62 | /* |
| 63 | * The following remembers the jfieldID's of the fields |
| 64 | * of the DhcpInfo Java object, so that we don't have |
| 65 | * to look them up every time. |
| 66 | */ |
| 67 | static struct fieldIds { |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 68 | jclass dhcpInfoInternalClass; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 69 | jmethodID constructorId; |
| 70 | jfieldID ipaddress; |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 71 | jfieldID prefixLength; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 72 | jfieldID dns1; |
| 73 | jfieldID dns2; |
| 74 | jfieldID serverAddress; |
| 75 | jfieldID leaseDuration; |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 76 | } dhcpInfoInternalFieldIds; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 77 | |
Mike Lockwood | 0900f36 | 2009-07-10 17:24:07 -0400 | [diff] [blame] | 78 | static jint android_net_utils_enableInterface(JNIEnv* env, jobject clazz, jstring ifname) |
| 79 | { |
| 80 | int result; |
| 81 | |
| 82 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 83 | result = ::ifc_enable(nameStr); |
| 84 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 85 | return (jint)result; |
| 86 | } |
| 87 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 88 | static jint android_net_utils_disableInterface(JNIEnv* env, jobject clazz, jstring ifname) |
| 89 | { |
| 90 | int result; |
| 91 | |
| 92 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 93 | result = ::ifc_disable(nameStr); |
| 94 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 95 | return (jint)result; |
| 96 | } |
| 97 | |
Robert Greenwalt | 585ac0f | 2010-08-27 09:24:29 -0700 | [diff] [blame] | 98 | static jint android_net_utils_addRoute(JNIEnv* env, jobject clazz, jstring ifname, |
| 99 | jstring dst, jint prefixLength, jstring gw) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 100 | { |
| 101 | int result; |
| 102 | |
| 103 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
Robert Greenwalt | 585ac0f | 2010-08-27 09:24:29 -0700 | [diff] [blame] | 104 | const char *dstStr = env->GetStringUTFChars(dst, NULL); |
| 105 | const char *gwStr = NULL; |
| 106 | if (gw != NULL) { |
| 107 | gwStr = env->GetStringUTFChars(gw, NULL); |
| 108 | } |
| 109 | result = ::ifc_add_route(nameStr, dstStr, prefixLength, gwStr); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 110 | env->ReleaseStringUTFChars(ifname, nameStr); |
Robert Greenwalt | 585ac0f | 2010-08-27 09:24:29 -0700 | [diff] [blame] | 111 | env->ReleaseStringUTFChars(dst, dstStr); |
| 112 | if (gw != NULL) { |
| 113 | env->ReleaseStringUTFChars(gw, gwStr); |
| 114 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 115 | return (jint)result; |
| 116 | } |
| 117 | |
| 118 | static jint android_net_utils_removeHostRoutes(JNIEnv* env, jobject clazz, jstring ifname) |
| 119 | { |
| 120 | int result; |
| 121 | |
| 122 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 123 | result = ::ifc_remove_host_routes(nameStr); |
| 124 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 125 | return (jint)result; |
| 126 | } |
| 127 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 128 | static jint android_net_utils_getDefaultRoute(JNIEnv* env, jobject clazz, jstring ifname) |
| 129 | { |
| 130 | int result; |
| 131 | |
| 132 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 133 | result = ::ifc_get_default_route(nameStr); |
| 134 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 135 | return (jint)result; |
| 136 | } |
| 137 | |
| 138 | static jint android_net_utils_removeDefaultRoute(JNIEnv* env, jobject clazz, jstring ifname) |
| 139 | { |
| 140 | int result; |
| 141 | |
| 142 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 143 | result = ::ifc_remove_default_route(nameStr); |
| 144 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 145 | return (jint)result; |
| 146 | } |
| 147 | |
| 148 | static jint android_net_utils_resetConnections(JNIEnv* env, jobject clazz, jstring ifname) |
| 149 | { |
| 150 | int result; |
| 151 | |
| 152 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 153 | result = ::ifc_reset_connections(nameStr); |
| 154 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 155 | return (jint)result; |
| 156 | } |
| 157 | |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 158 | static jboolean android_net_utils_runDhcpCommon(JNIEnv* env, jobject clazz, jstring ifname, |
| 159 | jobject info, bool renew) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 160 | { |
| 161 | int result; |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 162 | char ipaddr[PROPERTY_VALUE_MAX]; |
| 163 | uint32_t prefixLength; |
| 164 | char gateway[PROPERTY_VALUE_MAX]; |
| 165 | char dns1[PROPERTY_VALUE_MAX]; |
| 166 | char dns2[PROPERTY_VALUE_MAX]; |
| 167 | char server[PROPERTY_VALUE_MAX]; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 168 | uint32_t lease; |
| 169 | |
| 170 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 171 | if (nameStr == NULL) return (jboolean)false; |
| 172 | |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 173 | if (renew) { |
| 174 | result = ::dhcp_do_request_renew(nameStr, ipaddr, gateway, &prefixLength, |
| 175 | dns1, dns2, server, &lease); |
| 176 | } else { |
| 177 | result = ::dhcp_do_request(nameStr, ipaddr, gateway, &prefixLength, |
| 178 | dns1, dns2, server, &lease); |
| 179 | } |
| 180 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 181 | env->ReleaseStringUTFChars(ifname, nameStr); |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 182 | if (result == 0 && dhcpInfoInternalFieldIds.dhcpInfoInternalClass != NULL) { |
| 183 | env->SetObjectField(info, dhcpInfoInternalFieldIds.ipaddress, env->NewStringUTF(ipaddr)); |
Robert Greenwalt | aa70f10 | 2011-04-28 14:28:50 -0700 | [diff] [blame] | 184 | |
| 185 | // set the gateway |
| 186 | jclass cls = env->FindClass("java/net/InetAddress"); |
| 187 | jmethodID method = env->GetStaticMethodID(cls, "getByName", |
| 188 | "(Ljava/lang/String;)Ljava/net/InetAddress;"); |
| 189 | jvalue args[1]; |
| 190 | args[0].l = env->NewStringUTF(gateway); |
| 191 | jobject inetAddressObject = env->CallStaticObjectMethodA(cls, method, args); |
| 192 | |
| 193 | if (!env->ExceptionOccurred()) { |
| 194 | cls = env->FindClass("android/net/RouteInfo"); |
| 195 | method = env->GetMethodID(cls, "<init>", "(Ljava/net/InetAddress;)V"); |
| 196 | args[0].l = inetAddressObject; |
| 197 | jobject routeInfoObject = env->NewObjectA(cls, method, args); |
| 198 | |
| 199 | cls = env->FindClass("android/net/DhcpInfoInternal"); |
| 200 | method = env->GetMethodID(cls, "addRoute", "(Landroid/net/RouteInfo;)V"); |
| 201 | args[0].l = routeInfoObject; |
| 202 | env->CallVoidMethodA(info, method, args); |
| 203 | } else { |
| 204 | // if we have an exception (host not found perhaps), just don't add the route |
| 205 | env->ExceptionClear(); |
| 206 | } |
| 207 | |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 208 | env->SetIntField(info, dhcpInfoInternalFieldIds.prefixLength, prefixLength); |
| 209 | env->SetObjectField(info, dhcpInfoInternalFieldIds.dns1, env->NewStringUTF(dns1)); |
| 210 | env->SetObjectField(info, dhcpInfoInternalFieldIds.dns2, env->NewStringUTF(dns2)); |
| 211 | env->SetObjectField(info, dhcpInfoInternalFieldIds.serverAddress, |
| 212 | env->NewStringUTF(server)); |
| 213 | env->SetIntField(info, dhcpInfoInternalFieldIds.leaseDuration, lease); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 214 | } |
| 215 | return (jboolean)(result == 0); |
| 216 | } |
| 217 | |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 218 | static jboolean android_net_utils_runDhcp(JNIEnv* env, jobject clazz, jstring ifname, jobject info) |
| 219 | { |
| 220 | return android_net_utils_runDhcpCommon(env, clazz, ifname, info, false); |
| 221 | } |
| 222 | |
| 223 | static jboolean android_net_utils_runDhcpRenew(JNIEnv* env, jobject clazz, jstring ifname, jobject info) |
| 224 | { |
| 225 | return android_net_utils_runDhcpCommon(env, clazz, ifname, info, true); |
| 226 | } |
| 227 | |
| 228 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 229 | static jboolean android_net_utils_stopDhcp(JNIEnv* env, jobject clazz, jstring ifname) |
| 230 | { |
| 231 | int result; |
| 232 | |
| 233 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 234 | result = ::dhcp_stop(nameStr); |
| 235 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 236 | return (jboolean)(result == 0); |
| 237 | } |
| 238 | |
| 239 | static jboolean android_net_utils_releaseDhcpLease(JNIEnv* env, jobject clazz, jstring ifname) |
| 240 | { |
| 241 | int result; |
| 242 | |
| 243 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 244 | result = ::dhcp_release_lease(nameStr); |
| 245 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 246 | return (jboolean)(result == 0); |
| 247 | } |
| 248 | |
| 249 | static jstring android_net_utils_getDhcpError(JNIEnv* env, jobject clazz) |
| 250 | { |
| 251 | return env->NewStringUTF(::dhcp_get_errmsg()); |
| 252 | } |
| 253 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 254 | // ---------------------------------------------------------------------------- |
| 255 | |
| 256 | /* |
| 257 | * JNI registration. |
| 258 | */ |
| 259 | static JNINativeMethod gNetworkUtilMethods[] = { |
| 260 | /* name, signature, funcPtr */ |
| 261 | |
Mike Lockwood | 0900f36 | 2009-07-10 17:24:07 -0400 | [diff] [blame] | 262 | { "enableInterface", "(Ljava/lang/String;)I", (void *)android_net_utils_enableInterface }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 263 | { "disableInterface", "(Ljava/lang/String;)I", (void *)android_net_utils_disableInterface }, |
Robert Greenwalt | 585ac0f | 2010-08-27 09:24:29 -0700 | [diff] [blame] | 264 | { "addRoute", "(Ljava/lang/String;Ljava/lang/String;ILjava/lang/String;)I", |
| 265 | (void *)android_net_utils_addRoute }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 266 | { "removeHostRoutes", "(Ljava/lang/String;)I", (void *)android_net_utils_removeHostRoutes }, |
Robert Greenwalt | 585ac0f | 2010-08-27 09:24:29 -0700 | [diff] [blame] | 267 | { "getDefaultRouteNative", "(Ljava/lang/String;)I", |
| 268 | (void *)android_net_utils_getDefaultRoute }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 269 | { "removeDefaultRoute", "(Ljava/lang/String;)I", (void *)android_net_utils_removeDefaultRoute }, |
| 270 | { "resetConnections", "(Ljava/lang/String;)I", (void *)android_net_utils_resetConnections }, |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 271 | { "runDhcp", "(Ljava/lang/String;Landroid/net/DhcpInfoInternal;)Z", (void *)android_net_utils_runDhcp }, |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 272 | { "runDhcpRenew", "(Ljava/lang/String;Landroid/net/DhcpInfoInternal;)Z", (void *)android_net_utils_runDhcpRenew }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 273 | { "stopDhcp", "(Ljava/lang/String;)Z", (void *)android_net_utils_stopDhcp }, |
| 274 | { "releaseDhcpLease", "(Ljava/lang/String;)Z", (void *)android_net_utils_releaseDhcpLease }, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 275 | { "getDhcpError", "()Ljava/lang/String;", (void*) android_net_utils_getDhcpError }, |
| 276 | }; |
| 277 | |
| 278 | int register_android_net_NetworkUtils(JNIEnv* env) |
| 279 | { |
| 280 | jclass netutils = env->FindClass(NETUTILS_PKG_NAME); |
| 281 | LOG_FATAL_IF(netutils == NULL, "Unable to find class " NETUTILS_PKG_NAME); |
| 282 | |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 283 | dhcpInfoInternalFieldIds.dhcpInfoInternalClass = env->FindClass("android/net/DhcpInfoInternal"); |
| 284 | if (dhcpInfoInternalFieldIds.dhcpInfoInternalClass != NULL) { |
| 285 | dhcpInfoInternalFieldIds.constructorId = env->GetMethodID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "<init>", "()V"); |
| 286 | dhcpInfoInternalFieldIds.ipaddress = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "ipAddress", "Ljava/lang/String;"); |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 287 | dhcpInfoInternalFieldIds.prefixLength = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "prefixLength", "I"); |
| 288 | dhcpInfoInternalFieldIds.dns1 = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "dns1", "Ljava/lang/String;"); |
| 289 | dhcpInfoInternalFieldIds.dns2 = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "dns2", "Ljava/lang/String;"); |
| 290 | dhcpInfoInternalFieldIds.serverAddress = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "serverAddress", "Ljava/lang/String;"); |
| 291 | dhcpInfoInternalFieldIds.leaseDuration = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "leaseDuration", "I"); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 292 | } |
| 293 | |
| 294 | return AndroidRuntime::registerNativeMethods(env, |
| 295 | NETUTILS_PKG_NAME, gNetworkUtilMethods, NELEM(gNetworkUtilMethods)); |
| 296 | } |
| 297 | |
| 298 | }; // namespace android |