[Thread] add ThreadNetworkController APIs
The ThreadNetworkController class provides APIs for managing the Thread
network, for example, attach to a specific network, form a network with
given dataset or update/migrate an existing network.
Bug: 262683651
Test: atest CtsThreadNetworkTestCases
Change-Id: Ib3c267d2c81a8c3c7772ed3c9cd2092487cc941a
diff --git a/thread/service/jni/com_android_server_thread_TunInterfaceController.cpp b/thread/service/jni/com_android_server_thread_TunInterfaceController.cpp
new file mode 100644
index 0000000..ed39fab
--- /dev/null
+++ b/thread/service/jni/com_android_server_thread_TunInterfaceController.cpp
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2023 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 "jniThreadTun"
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <linux/if_arp.h>
+#include <linux/if_tun.h>
+#include <linux/ioctl.h>
+#include <log/log.h>
+#include <net/if.h>
+#include <spawn.h>
+#include <sys/wait.h>
+#include <string>
+
+#include <private/android_filesystem_config.h>
+
+#include "jni.h"
+#include "nativehelper/JNIHelp.h"
+#include "nativehelper/scoped_utf_chars.h"
+
+namespace android {
+static jint com_android_server_thread_TunInterfaceController_createTunInterface(
+ JNIEnv* env, jobject clazz, jstring interfaceName, jint mtu) {
+ ScopedUtfChars ifName(env, interfaceName);
+
+ int fd = open("/dev/net/tun", O_RDWR | O_NONBLOCK | O_CLOEXEC);
+ if (fd == -1) {
+ jniThrowExceptionFmt(env, "java/io/IOException", "open tun device failed (%s)",
+ strerror(errno));
+ return -1;
+ }
+
+ struct ifreq ifr = {
+ .ifr_flags = IFF_TUN | IFF_NO_PI | static_cast<short>(IFF_TUN_EXCL),
+ };
+ strlcpy(ifr.ifr_name, ifName.c_str(), sizeof(ifr.ifr_name));
+
+ if (ioctl(fd, TUNSETIFF, &ifr, sizeof(ifr)) != 0) {
+ close(fd);
+ jniThrowExceptionFmt(env, "java/io/IOException", "ioctl(TUNSETIFF) failed (%s)",
+ strerror(errno));
+ return -1;
+ }
+
+ int inet6 = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, IPPROTO_IP);
+ if (inet6 == -1) {
+ close(fd);
+ jniThrowExceptionFmt(env, "java/io/IOException", "create inet6 socket failed (%s)",
+ strerror(errno));
+ return -1;
+ }
+ ifr.ifr_mtu = mtu;
+ if (ioctl(inet6, SIOCSIFMTU, &ifr) != 0) {
+ close(fd);
+ close(inet6);
+ jniThrowExceptionFmt(env, "java/io/IOException", "ioctl(SIOCSIFMTU) failed (%s)",
+ strerror(errno));
+ return -1;
+ }
+
+ close(inet6);
+ return fd;
+}
+
+static void com_android_server_thread_TunInterfaceController_setInterfaceUp(
+ JNIEnv* env, jobject clazz, jstring interfaceName, jboolean isUp) {
+ struct ifreq ifr;
+ ScopedUtfChars ifName(env, interfaceName);
+
+ ifr.ifr_flags = isUp ? IFF_UP : 0;
+ strlcpy(ifr.ifr_name, ifName.c_str(), sizeof(ifr.ifr_name));
+
+ int inet6 = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, IPPROTO_IP);
+ if (inet6 == -1) {
+ jniThrowExceptionFmt(env, "java/io/IOException", "create inet6 socket failed (%s)",
+ strerror(errno));
+ }
+
+ if (ioctl(inet6, SIOCSIFFLAGS, &ifr) != 0) {
+ close(inet6);
+ jniThrowExceptionFmt(env, "java/io/IOException", "ioctl(SIOCSIFFLAGS) failed (%s)",
+ strerror(errno));
+ }
+
+ close(inet6);
+}
+
+/*
+ * JNI registration.
+ */
+
+static const JNINativeMethod gMethods[] = {
+ /* name, signature, funcPtr */
+ {"nativeCreateTunInterface",
+ "(Ljava/lang/String;I)I",
+ (void*)com_android_server_thread_TunInterfaceController_createTunInterface},
+ {"nativeSetInterfaceUp",
+ "(Ljava/lang/String;Z)V",
+ (void*)com_android_server_thread_TunInterfaceController_setInterfaceUp},
+};
+
+int register_com_android_server_thread_TunInterfaceController(JNIEnv* env) {
+ return jniRegisterNativeMethods(env, "com/android/server/thread/TunInterfaceController",
+ gMethods, NELEM(gMethods));
+}
+
+}; // namespace android
diff --git a/thread/service/jni/onload.cpp b/thread/service/jni/onload.cpp
new file mode 100644
index 0000000..5081664
--- /dev/null
+++ b/thread/service/jni/onload.cpp
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+#include "jni.h"
+#include "utils/Log.h"
+
+namespace android {
+int register_com_android_server_thread_TunInterfaceController(JNIEnv* env);
+}
+
+using namespace android;
+
+extern "C" jint JNI_OnLoad(JavaVM* vm, void* /* reserved */) {
+ JNIEnv* env = NULL;
+
+ if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
+ ALOGE("GetEnv failed!");
+ return -1;
+ }
+ ALOG_ASSERT(env != NULL, "Could not retrieve the env!");
+
+ register_com_android_server_thread_TunInterfaceController(env);
+ return JNI_VERSION_1_4;
+}