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 | * |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 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 |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 7 | * |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 9 | * |
Elliott Hughes | dd66bcb | 2011-04-12 11:28:59 -0700 | [diff] [blame] | 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 |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 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); |
Wink Saville | 8171e6f | 2011-07-07 16:17:06 -0700 | [diff] [blame] | 29 | int ifc_reset_connections(const char *ifname, int reset_mask); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 30 | |
| 31 | int dhcp_do_request(const char *ifname, |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 32 | const char *ipaddr, |
| 33 | const char *gateway, |
| 34 | uint32_t *prefixLength, |
| 35 | const char *dns1, |
| 36 | const char *dns2, |
| 37 | const char *server, |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 38 | uint32_t *lease); |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 39 | |
| 40 | int dhcp_do_request_renew(const char *ifname, |
| 41 | const char *ipaddr, |
| 42 | const char *gateway, |
| 43 | uint32_t *prefixLength, |
| 44 | const char *dns1, |
| 45 | const char *dns2, |
| 46 | const char *server, |
| 47 | uint32_t *lease); |
| 48 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 49 | int dhcp_stop(const char *ifname); |
| 50 | int dhcp_release_lease(const char *ifname); |
| 51 | char *dhcp_get_errmsg(); |
| 52 | } |
| 53 | |
| 54 | #define NETUTILS_PKG_NAME "android/net/NetworkUtils" |
| 55 | |
| 56 | namespace android { |
| 57 | |
| 58 | /* |
| 59 | * The following remembers the jfieldID's of the fields |
| 60 | * of the DhcpInfo Java object, so that we don't have |
| 61 | * to look them up every time. |
| 62 | */ |
| 63 | static struct fieldIds { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 64 | jmethodID constructorId; |
| 65 | jfieldID ipaddress; |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 66 | jfieldID prefixLength; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 67 | jfieldID dns1; |
| 68 | jfieldID dns2; |
| 69 | jfieldID serverAddress; |
| 70 | jfieldID leaseDuration; |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 71 | } dhcpInfoInternalFieldIds; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 72 | |
Mike Lockwood | 0900f36 | 2009-07-10 17:24:07 -0400 | [diff] [blame] | 73 | static jint android_net_utils_enableInterface(JNIEnv* env, jobject clazz, jstring ifname) |
| 74 | { |
| 75 | int result; |
| 76 | |
| 77 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 78 | result = ::ifc_enable(nameStr); |
| 79 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 80 | return (jint)result; |
| 81 | } |
| 82 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 83 | static jint android_net_utils_disableInterface(JNIEnv* env, jobject clazz, jstring ifname) |
| 84 | { |
| 85 | int result; |
| 86 | |
| 87 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 88 | result = ::ifc_disable(nameStr); |
| 89 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 90 | return (jint)result; |
| 91 | } |
| 92 | |
Wink Saville | 8171e6f | 2011-07-07 16:17:06 -0700 | [diff] [blame] | 93 | static jint android_net_utils_resetConnections(JNIEnv* env, jobject clazz, |
| 94 | jstring ifname, jint mask) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 95 | { |
| 96 | int result; |
| 97 | |
| 98 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
Wink Saville | 8171e6f | 2011-07-07 16:17:06 -0700 | [diff] [blame] | 99 | |
| 100 | LOGD("android_net_utils_resetConnections in env=%p clazz=%p iface=%s mask=0x%x\n", |
| 101 | env, clazz, nameStr, mask); |
| 102 | |
| 103 | result = ::ifc_reset_connections(nameStr, mask); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 104 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 105 | return (jint)result; |
| 106 | } |
| 107 | |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 108 | static jboolean android_net_utils_runDhcpCommon(JNIEnv* env, jobject clazz, jstring ifname, |
| 109 | jobject info, bool renew) |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 110 | { |
| 111 | int result; |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 112 | char ipaddr[PROPERTY_VALUE_MAX]; |
| 113 | uint32_t prefixLength; |
| 114 | char gateway[PROPERTY_VALUE_MAX]; |
| 115 | char dns1[PROPERTY_VALUE_MAX]; |
| 116 | char dns2[PROPERTY_VALUE_MAX]; |
| 117 | char server[PROPERTY_VALUE_MAX]; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 118 | uint32_t lease; |
| 119 | |
| 120 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 121 | if (nameStr == NULL) return (jboolean)false; |
| 122 | |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 123 | if (renew) { |
| 124 | result = ::dhcp_do_request_renew(nameStr, ipaddr, gateway, &prefixLength, |
| 125 | dns1, dns2, server, &lease); |
| 126 | } else { |
| 127 | result = ::dhcp_do_request(nameStr, ipaddr, gateway, &prefixLength, |
| 128 | dns1, dns2, server, &lease); |
| 129 | } |
| 130 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 131 | env->ReleaseStringUTFChars(ifname, nameStr); |
Brian Carlstrom | 46e18c11 | 2011-04-05 22:44:45 -0700 | [diff] [blame] | 132 | if (result == 0) { |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 133 | env->SetObjectField(info, dhcpInfoInternalFieldIds.ipaddress, env->NewStringUTF(ipaddr)); |
Robert Greenwalt | aa70f10 | 2011-04-28 14:28:50 -0700 | [diff] [blame] | 134 | |
| 135 | // set the gateway |
| 136 | jclass cls = env->FindClass("java/net/InetAddress"); |
| 137 | jmethodID method = env->GetStaticMethodID(cls, "getByName", |
| 138 | "(Ljava/lang/String;)Ljava/net/InetAddress;"); |
| 139 | jvalue args[1]; |
| 140 | args[0].l = env->NewStringUTF(gateway); |
| 141 | jobject inetAddressObject = env->CallStaticObjectMethodA(cls, method, args); |
| 142 | |
| 143 | if (!env->ExceptionOccurred()) { |
| 144 | cls = env->FindClass("android/net/RouteInfo"); |
| 145 | method = env->GetMethodID(cls, "<init>", "(Ljava/net/InetAddress;)V"); |
| 146 | args[0].l = inetAddressObject; |
| 147 | jobject routeInfoObject = env->NewObjectA(cls, method, args); |
| 148 | |
| 149 | cls = env->FindClass("android/net/DhcpInfoInternal"); |
| 150 | method = env->GetMethodID(cls, "addRoute", "(Landroid/net/RouteInfo;)V"); |
| 151 | args[0].l = routeInfoObject; |
| 152 | env->CallVoidMethodA(info, method, args); |
| 153 | } else { |
| 154 | // if we have an exception (host not found perhaps), just don't add the route |
| 155 | env->ExceptionClear(); |
| 156 | } |
| 157 | |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 158 | env->SetIntField(info, dhcpInfoInternalFieldIds.prefixLength, prefixLength); |
| 159 | env->SetObjectField(info, dhcpInfoInternalFieldIds.dns1, env->NewStringUTF(dns1)); |
| 160 | env->SetObjectField(info, dhcpInfoInternalFieldIds.dns2, env->NewStringUTF(dns2)); |
| 161 | env->SetObjectField(info, dhcpInfoInternalFieldIds.serverAddress, |
| 162 | env->NewStringUTF(server)); |
| 163 | env->SetIntField(info, dhcpInfoInternalFieldIds.leaseDuration, lease); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 164 | } |
| 165 | return (jboolean)(result == 0); |
| 166 | } |
| 167 | |
Irfan Sheriff | 31be7cf | 2011-04-28 10:25:31 -0700 | [diff] [blame] | 168 | static jboolean android_net_utils_runDhcp(JNIEnv* env, jobject clazz, jstring ifname, jobject info) |
| 169 | { |
| 170 | return android_net_utils_runDhcpCommon(env, clazz, ifname, info, false); |
| 171 | } |
| 172 | |
| 173 | static jboolean android_net_utils_runDhcpRenew(JNIEnv* env, jobject clazz, jstring ifname, jobject info) |
| 174 | { |
| 175 | return android_net_utils_runDhcpCommon(env, clazz, ifname, info, true); |
| 176 | } |
| 177 | |
| 178 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 179 | static jboolean android_net_utils_stopDhcp(JNIEnv* env, jobject clazz, jstring ifname) |
| 180 | { |
| 181 | int result; |
| 182 | |
| 183 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 184 | result = ::dhcp_stop(nameStr); |
| 185 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 186 | return (jboolean)(result == 0); |
| 187 | } |
| 188 | |
| 189 | static jboolean android_net_utils_releaseDhcpLease(JNIEnv* env, jobject clazz, jstring ifname) |
| 190 | { |
| 191 | int result; |
| 192 | |
| 193 | const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| 194 | result = ::dhcp_release_lease(nameStr); |
| 195 | env->ReleaseStringUTFChars(ifname, nameStr); |
| 196 | return (jboolean)(result == 0); |
| 197 | } |
| 198 | |
| 199 | static jstring android_net_utils_getDhcpError(JNIEnv* env, jobject clazz) |
| 200 | { |
| 201 | return env->NewStringUTF(::dhcp_get_errmsg()); |
| 202 | } |
| 203 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 204 | // ---------------------------------------------------------------------------- |
| 205 | |
| 206 | /* |
| 207 | * JNI registration. |
| 208 | */ |
| 209 | static JNINativeMethod gNetworkUtilMethods[] = { |
| 210 | /* name, signature, funcPtr */ |
| 211 | |
Mike Lockwood | 0900f36 | 2009-07-10 17:24:07 -0400 | [diff] [blame] | 212 | { "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] | 213 | { "disableInterface", "(Ljava/lang/String;)I", (void *)android_net_utils_disableInterface }, |
Wink Saville | 8171e6f | 2011-07-07 16:17:06 -0700 | [diff] [blame] | 214 | { "resetConnections", "(Ljava/lang/String;I)I", (void *)android_net_utils_resetConnections }, |
Robert Greenwalt | 0216e61 | 2011-01-14 16:29:58 -0800 | [diff] [blame] | 215 | { "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] | 216 | { "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] | 217 | { "stopDhcp", "(Ljava/lang/String;)Z", (void *)android_net_utils_stopDhcp }, |
| 218 | { "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] | 219 | { "getDhcpError", "()Ljava/lang/String;", (void*) android_net_utils_getDhcpError }, |
| 220 | }; |
| 221 | |
| 222 | int register_android_net_NetworkUtils(JNIEnv* env) |
| 223 | { |
Brian Carlstrom | 46e18c11 | 2011-04-05 22:44:45 -0700 | [diff] [blame] | 224 | jclass dhcpInfoInternalClass = env->FindClass("android/net/DhcpInfoInternal"); |
| 225 | LOG_FATAL_IF(dhcpInfoInternalClass == NULL, "Unable to find class android/net/DhcpInfoInternal"); |
| 226 | dhcpInfoInternalFieldIds.constructorId = env->GetMethodID(dhcpInfoInternalClass, "<init>", "()V"); |
| 227 | dhcpInfoInternalFieldIds.ipaddress = env->GetFieldID(dhcpInfoInternalClass, "ipAddress", "Ljava/lang/String;"); |
Brian Carlstrom | 46e18c11 | 2011-04-05 22:44:45 -0700 | [diff] [blame] | 228 | dhcpInfoInternalFieldIds.prefixLength = env->GetFieldID(dhcpInfoInternalClass, "prefixLength", "I"); |
| 229 | dhcpInfoInternalFieldIds.dns1 = env->GetFieldID(dhcpInfoInternalClass, "dns1", "Ljava/lang/String;"); |
| 230 | dhcpInfoInternalFieldIds.dns2 = env->GetFieldID(dhcpInfoInternalClass, "dns2", "Ljava/lang/String;"); |
| 231 | dhcpInfoInternalFieldIds.serverAddress = env->GetFieldID(dhcpInfoInternalClass, "serverAddress", "Ljava/lang/String;"); |
| 232 | dhcpInfoInternalFieldIds.leaseDuration = env->GetFieldID(dhcpInfoInternalClass, "leaseDuration", "I"); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 233 | |
| 234 | return AndroidRuntime::registerNativeMethods(env, |
| 235 | NETUTILS_PKG_NAME, gNetworkUtilMethods, NELEM(gNetworkUtilMethods)); |
| 236 | } |
| 237 | |
| 238 | }; // namespace android |