| /* |
| * Copyright 2008, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "NetUtils" |
| |
| #include "jni.h" |
| #include <utils/misc.h> |
| #include <android_runtime/AndroidRuntime.h> |
| #include <utils/Log.h> |
| #include <arpa/inet.h> |
| |
| #include <netutils/ifc.h> |
| #include <netutils/dhcp.h> |
| |
| #define NETUTILS_PKG_NAME "android/net/NetworkUtils" |
| |
| namespace android { |
| |
| /* |
| * The following remembers the jfieldID's of the fields |
| * of the DhcpInfo Java object, so that we don't have |
| * to look them up every time. |
| */ |
| static struct fieldIds { |
| jclass dhcpInfoClass; |
| jmethodID constructorId; |
| jfieldID ipaddress; |
| jfieldID gateway; |
| jfieldID netmask; |
| jfieldID dns1; |
| jfieldID dns2; |
| jfieldID serverAddress; |
| jfieldID leaseDuration; |
| } dhcpInfoFieldIds; |
| |
| static jint android_net_utils_enableInterface(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_enable(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_disableInterface(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_disable(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_addHostRoute(JNIEnv* env, jobject clazz, jstring ifname, jint addr) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_add_host_route(nameStr, addr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_removeHostRoutes(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_remove_host_routes(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_setDefaultRoute(JNIEnv* env, jobject clazz, jstring ifname, jint gateway) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_set_default_route(nameStr, gateway); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_getDefaultRoute(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_get_default_route(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_removeDefaultRoute(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_remove_default_route(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jint android_net_utils_resetConnections(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_reset_connections(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jint)result; |
| } |
| |
| static jboolean android_net_utils_runDhcp(JNIEnv* env, jobject clazz, jstring ifname, jobject info) |
| { |
| int result; |
| in_addr_t ipaddr, gateway, mask, dns1, dns2, server; |
| uint32_t lease; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::dhcp_do_request(nameStr, &ipaddr, &gateway, &mask, |
| &dns1, &dns2, &server, &lease); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| if (result == 0 && dhcpInfoFieldIds.dhcpInfoClass != NULL) { |
| env->SetIntField(info, dhcpInfoFieldIds.ipaddress, ipaddr); |
| env->SetIntField(info, dhcpInfoFieldIds.gateway, gateway); |
| env->SetIntField(info, dhcpInfoFieldIds.netmask, mask); |
| env->SetIntField(info, dhcpInfoFieldIds.dns1, dns1); |
| env->SetIntField(info, dhcpInfoFieldIds.dns2, dns2); |
| env->SetIntField(info, dhcpInfoFieldIds.serverAddress, server); |
| env->SetIntField(info, dhcpInfoFieldIds.leaseDuration, lease); |
| } |
| return (jboolean)(result == 0); |
| } |
| |
| static jboolean android_net_utils_stopDhcp(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::dhcp_stop(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jboolean)(result == 0); |
| } |
| |
| static jboolean android_net_utils_releaseDhcpLease(JNIEnv* env, jobject clazz, jstring ifname) |
| { |
| int result; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::dhcp_release_lease(nameStr); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jboolean)(result == 0); |
| } |
| |
| static jstring android_net_utils_getDhcpError(JNIEnv* env, jobject clazz) |
| { |
| return env->NewStringUTF(::dhcp_get_errmsg()); |
| } |
| |
| static jboolean android_net_utils_configureInterface(JNIEnv* env, |
| jobject clazz, |
| jstring ifname, |
| jint ipaddr, |
| jint mask, |
| jint gateway, |
| jint dns1, |
| jint dns2) |
| { |
| int result; |
| uint32_t lease; |
| |
| const char *nameStr = env->GetStringUTFChars(ifname, NULL); |
| result = ::ifc_configure(nameStr, ipaddr, mask, gateway, dns1, dns2); |
| env->ReleaseStringUTFChars(ifname, nameStr); |
| return (jboolean)(result == 0); |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| /* |
| * JNI registration. |
| */ |
| static JNINativeMethod gNetworkUtilMethods[] = { |
| /* name, signature, funcPtr */ |
| |
| { "enableInterface", "(Ljava/lang/String;)I", (void *)android_net_utils_enableInterface }, |
| { "disableInterface", "(Ljava/lang/String;)I", (void *)android_net_utils_disableInterface }, |
| { "addHostRoute", "(Ljava/lang/String;I)I", (void *)android_net_utils_addHostRoute }, |
| { "removeHostRoutes", "(Ljava/lang/String;)I", (void *)android_net_utils_removeHostRoutes }, |
| { "setDefaultRoute", "(Ljava/lang/String;I)I", (void *)android_net_utils_setDefaultRoute }, |
| { "getDefaultRoute", "(Ljava/lang/String;)I", (void *)android_net_utils_getDefaultRoute }, |
| { "removeDefaultRoute", "(Ljava/lang/String;)I", (void *)android_net_utils_removeDefaultRoute }, |
| { "resetConnections", "(Ljava/lang/String;)I", (void *)android_net_utils_resetConnections }, |
| { "runDhcp", "(Ljava/lang/String;Landroid/net/DhcpInfo;)Z", (void *)android_net_utils_runDhcp }, |
| { "stopDhcp", "(Ljava/lang/String;)Z", (void *)android_net_utils_stopDhcp }, |
| { "releaseDhcpLease", "(Ljava/lang/String;)Z", (void *)android_net_utils_releaseDhcpLease }, |
| { "configureNative", "(Ljava/lang/String;IIIII)Z", (void *)android_net_utils_configureInterface }, |
| { "getDhcpError", "()Ljava/lang/String;", (void*) android_net_utils_getDhcpError }, |
| }; |
| |
| int register_android_net_NetworkUtils(JNIEnv* env) |
| { |
| jclass netutils = env->FindClass(NETUTILS_PKG_NAME); |
| LOG_FATAL_IF(netutils == NULL, "Unable to find class " NETUTILS_PKG_NAME); |
| |
| dhcpInfoFieldIds.dhcpInfoClass = env->FindClass("android/net/DhcpInfo"); |
| if (dhcpInfoFieldIds.dhcpInfoClass != NULL) { |
| dhcpInfoFieldIds.constructorId = env->GetMethodID(dhcpInfoFieldIds.dhcpInfoClass, "<init>", "()V"); |
| dhcpInfoFieldIds.ipaddress = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "ipAddress", "I"); |
| dhcpInfoFieldIds.gateway = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "gateway", "I"); |
| dhcpInfoFieldIds.netmask = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "netmask", "I"); |
| dhcpInfoFieldIds.dns1 = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "dns1", "I"); |
| dhcpInfoFieldIds.dns2 = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "dns2", "I"); |
| dhcpInfoFieldIds.serverAddress = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "serverAddress", "I"); |
| dhcpInfoFieldIds.leaseDuration = env->GetFieldID(dhcpInfoFieldIds.dhcpInfoClass, "leaseDuration", "I"); |
| } |
| |
| return AndroidRuntime::registerNativeMethods(env, |
| NETUTILS_PKG_NAME, gNetworkUtilMethods, NELEM(gNetworkUtilMethods)); |
| } |
| |
| }; // namespace android |