Merge "Change tetheroffloadjni to tetheringutilsjni"
diff --git a/core/java/android/net/NetworkUtils.java b/core/java/android/net/NetworkUtils.java
index d0f54b4..01cb988 100644
--- a/core/java/android/net/NetworkUtils.java
+++ b/core/java/android/net/NetworkUtils.java
@@ -61,13 +61,6 @@
public static native void detachBPFFilter(FileDescriptor fd) throws SocketException;
/**
- * Configures a socket for receiving ICMPv6 router solicitations and sending advertisements.
- * @param fd the socket's {@link FileDescriptor}.
- * @param ifIndex the interface index.
- */
- public native static void setupRaSocket(FileDescriptor fd, int ifIndex) throws SocketException;
-
- /**
* Binds the current process to the network designated by {@code netId}. All sockets created
* in the future (and not explicitly bound via a bound {@link SocketFactory} (see
* {@link Network#getSocketFactory}) will be bound to this network. Note that if this
diff --git a/core/jni/android_net_NetUtils.cpp b/core/jni/android_net_NetUtils.cpp
index 08aa1d9..ba7fe7f 100644
--- a/core/jni/android_net_NetUtils.cpp
+++ b/core/jni/android_net_NetUtils.cpp
@@ -24,9 +24,7 @@
#include <linux/tcp.h>
#include <net/if.h>
#include <netinet/ether.h>
-#include <netinet/icmp6.h>
#include <netinet/ip.h>
-#include <netinet/ip6.h>
#include <netinet/udp.h>
#include <android_runtime/AndroidRuntime.h>
@@ -102,98 +100,6 @@
}
}
-static void android_net_utils_setupRaSocket(JNIEnv *env, jobject clazz, jobject javaFd,
- jint ifIndex)
-{
- static const int kLinkLocalHopLimit = 255;
-
- int fd = jniGetFDFromFileDescriptor(env, javaFd);
-
- // Set an ICMPv6 filter that only passes Router Solicitations.
- struct icmp6_filter rs_only;
- ICMP6_FILTER_SETBLOCKALL(&rs_only);
- ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &rs_only);
- socklen_t len = sizeof(rs_only);
- if (setsockopt(fd, IPPROTO_ICMPV6, ICMP6_FILTER, &rs_only, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "setsockopt(ICMP6_FILTER): %s", strerror(errno));
- return;
- }
-
- // Most/all of the rest of these options can be set via Java code, but
- // because we're here on account of setting an icmp6_filter go ahead
- // and do it all natively for now.
- //
- // TODO: Consider moving these out to Java.
-
- // Set the multicast hoplimit to 255 (link-local only).
- int hops = kLinkLocalHopLimit;
- len = sizeof(hops);
- if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "setsockopt(IPV6_MULTICAST_HOPS): %s", strerror(errno));
- return;
- }
-
- // Set the unicast hoplimit to 255 (link-local only).
- hops = kLinkLocalHopLimit;
- len = sizeof(hops);
- if (setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &hops, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "setsockopt(IPV6_UNICAST_HOPS): %s", strerror(errno));
- return;
- }
-
- // Explicitly disable multicast loopback.
- int off = 0;
- len = sizeof(off);
- if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &off, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "setsockopt(IPV6_MULTICAST_LOOP): %s", strerror(errno));
- return;
- }
-
- // Specify the IPv6 interface to use for outbound multicast.
- len = sizeof(ifIndex);
- if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_IF, &ifIndex, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "setsockopt(IPV6_MULTICAST_IF): %s", strerror(errno));
- return;
- }
-
- // Additional options to be considered:
- // - IPV6_TCLASS
- // - IPV6_RECVPKTINFO
- // - IPV6_RECVHOPLIMIT
-
- // Bind to [::].
- const struct sockaddr_in6 sin6 = {
- .sin6_family = AF_INET6,
- .sin6_port = 0,
- .sin6_flowinfo = 0,
- .sin6_addr = IN6ADDR_ANY_INIT,
- .sin6_scope_id = 0,
- };
- auto sa = reinterpret_cast<const struct sockaddr *>(&sin6);
- len = sizeof(sin6);
- if (bind(fd, sa, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "bind(IN6ADDR_ANY): %s", strerror(errno));
- return;
- }
-
- // Join the all-routers multicast group, ff02::2%index.
- struct ipv6_mreq all_rtrs = {
- .ipv6mr_multiaddr = {{{0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2}}},
- .ipv6mr_interface = ifIndex,
- };
- len = sizeof(all_rtrs);
- if (setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &all_rtrs, len) != 0) {
- jniThrowExceptionFmt(env, "java/net/SocketException",
- "setsockopt(IPV6_JOIN_GROUP): %s", strerror(errno));
- return;
- }
-}
static jboolean android_net_utils_bindProcessToNetwork(JNIEnv *env, jobject thiz, jint netId)
{
@@ -370,7 +276,6 @@
{ "attachDropAllBPFFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_attachDropAllBPFFilter },
{ "detachBPFFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_detachBPFFilter },
{ "getTcpRepairWindow", "(Ljava/io/FileDescriptor;)Landroid/net/TcpRepairWindow;", (void*) android_net_utils_getTcpRepairWindow },
- { "setupRaSocket", "(Ljava/io/FileDescriptor;I)V", (void*) android_net_utils_setupRaSocket },
{ "resNetworkSend", "(I[BII)Ljava/io/FileDescriptor;", (void*) android_net_utils_resNetworkSend },
{ "resNetworkQuery", "(ILjava/lang/String;III)Ljava/io/FileDescriptor;", (void*) android_net_utils_resNetworkQuery },
{ "resNetworkResult", "(Ljava/io/FileDescriptor;)Landroid/net/DnsResolver$DnsResponse;", (void*) android_net_utils_resNetworkResult },
diff --git a/packages/Tethering/Android.bp b/packages/Tethering/Android.bp
index 08552cb..596f62f 100644
--- a/packages/Tethering/Android.bp
+++ b/packages/Tethering/Android.bp
@@ -45,9 +45,9 @@
// Due to b/143733063, APK can't access a jni lib that is in APEX (but not in the APK).
cc_library {
- name: "libtetheroffloadjni",
+ name: "libtetherutilsjni",
srcs: [
- "jni/com_android_server_connectivity_tethering_OffloadHardwareInterface.cpp",
+ "jni/android_net_util_TetheringUtils.cpp",
],
shared_libs: [
"libcgrouprc",
@@ -87,7 +87,7 @@
"libcgrouprc",
"libnativehelper_compat_libc++",
"libvndksupport",
- "libtetheroffloadjni",
+ "libtetherutilsjni",
],
resource_dirs: [
"res",
diff --git a/packages/Tethering/jni/android_net_util_TetheringUtils.cpp b/packages/Tethering/jni/android_net_util_TetheringUtils.cpp
new file mode 100644
index 0000000..1cf8f98
--- /dev/null
+++ b/packages/Tethering/jni/android_net_util_TetheringUtils.cpp
@@ -0,0 +1,256 @@
+/*
+ * Copyright (C) 2017 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 <errno.h>
+#include <error.h>
+#include <hidl/HidlSupport.h>
+#include <jni.h>
+#include <nativehelper/JNIHelp.h>
+#include <nativehelper/ScopedUtfChars.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netlink.h>
+#include <net/if.h>
+#include <netinet/icmp6.h>
+#include <sys/socket.h>
+#include <android-base/unique_fd.h>
+#include <android/hardware/tetheroffload/config/1.0/IOffloadConfig.h>
+
+#define LOG_TAG "TetheringUtils"
+#include <utils/Log.h>
+
+namespace android {
+
+using hardware::hidl_handle;
+using hardware::hidl_string;
+using hardware::tetheroffload::config::V1_0::IOffloadConfig;
+
+namespace {
+
+inline const sockaddr * asSockaddr(const sockaddr_nl *nladdr) {
+ return reinterpret_cast<const sockaddr *>(nladdr);
+}
+
+int conntrackSocket(unsigned groups) {
+ base::unique_fd s(socket(AF_NETLINK, SOCK_DGRAM, NETLINK_NETFILTER));
+ if (s.get() < 0) return -errno;
+
+ const struct sockaddr_nl bind_addr = {
+ .nl_family = AF_NETLINK,
+ .nl_pad = 0,
+ .nl_pid = 0,
+ .nl_groups = groups,
+ };
+ if (bind(s.get(), asSockaddr(&bind_addr), sizeof(bind_addr)) != 0) {
+ return -errno;
+ }
+
+ const struct sockaddr_nl kernel_addr = {
+ .nl_family = AF_NETLINK,
+ .nl_pad = 0,
+ .nl_pid = 0,
+ .nl_groups = groups,
+ };
+ if (connect(s.get(), asSockaddr(&kernel_addr), sizeof(kernel_addr)) != 0) {
+ return -errno;
+ }
+
+ return s.release();
+}
+
+// Return a hidl_handle that owns the file descriptor owned by fd, and will
+// auto-close it (otherwise there would be double-close problems).
+//
+// Rely upon the compiler to eliminate the constexprs used for clarity.
+hidl_handle handleFromFileDescriptor(base::unique_fd fd) {
+ hidl_handle h;
+
+ static constexpr int kNumFds = 1;
+ static constexpr int kNumInts = 0;
+ native_handle_t *nh = native_handle_create(kNumFds, kNumInts);
+ nh->data[0] = fd.release();
+
+ static constexpr bool kTakeOwnership = true;
+ h.setTo(nh, kTakeOwnership);
+
+ return h;
+}
+
+} // namespace
+
+static jboolean android_net_util_configOffload(
+ JNIEnv* /* env */) {
+ sp<IOffloadConfig> configInterface = IOffloadConfig::getService();
+ if (configInterface.get() == nullptr) {
+ ALOGD("Could not find IOffloadConfig service.");
+ return false;
+ }
+
+ // Per the IConfigOffload definition:
+ //
+ // fd1 A file descriptor bound to the following netlink groups
+ // (NF_NETLINK_CONNTRACK_NEW | NF_NETLINK_CONNTRACK_DESTROY).
+ //
+ // fd2 A file descriptor bound to the following netlink groups
+ // (NF_NETLINK_CONNTRACK_UPDATE | NF_NETLINK_CONNTRACK_DESTROY).
+ base::unique_fd
+ fd1(conntrackSocket(NF_NETLINK_CONNTRACK_NEW | NF_NETLINK_CONNTRACK_DESTROY)),
+ fd2(conntrackSocket(NF_NETLINK_CONNTRACK_UPDATE | NF_NETLINK_CONNTRACK_DESTROY));
+ if (fd1.get() < 0 || fd2.get() < 0) {
+ ALOGE("Unable to create conntrack handles: %d/%s", errno, strerror(errno));
+ return false;
+ }
+
+ hidl_handle h1(handleFromFileDescriptor(std::move(fd1))),
+ h2(handleFromFileDescriptor(std::move(fd2)));
+
+ bool rval(false);
+ hidl_string msg;
+ const auto status = configInterface->setHandles(h1, h2,
+ [&rval, &msg](bool success, const hidl_string& errMsg) {
+ rval = success;
+ msg = errMsg;
+ });
+ if (!status.isOk() || !rval) {
+ ALOGE("IOffloadConfig::setHandles() error: '%s' / '%s'",
+ status.description().c_str(), msg.c_str());
+ // If status is somehow not ok, make sure rval captures this too.
+ rval = false;
+ }
+
+ return rval;
+}
+
+static void android_net_util_setupRaSocket(JNIEnv *env, jobject clazz, jobject javaFd,
+ jint ifIndex)
+{
+ static const int kLinkLocalHopLimit = 255;
+
+ int fd = jniGetFDFromFileDescriptor(env, javaFd);
+
+ // Set an ICMPv6 filter that only passes Router Solicitations.
+ struct icmp6_filter rs_only;
+ ICMP6_FILTER_SETBLOCKALL(&rs_only);
+ ICMP6_FILTER_SETPASS(ND_ROUTER_SOLICIT, &rs_only);
+ socklen_t len = sizeof(rs_only);
+ if (setsockopt(fd, IPPROTO_ICMPV6, ICMP6_FILTER, &rs_only, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "setsockopt(ICMP6_FILTER): %s", strerror(errno));
+ return;
+ }
+
+ // Most/all of the rest of these options can be set via Java code, but
+ // because we're here on account of setting an icmp6_filter go ahead
+ // and do it all natively for now.
+
+ // Set the multicast hoplimit to 255 (link-local only).
+ int hops = kLinkLocalHopLimit;
+ len = sizeof(hops);
+ if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &hops, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "setsockopt(IPV6_MULTICAST_HOPS): %s", strerror(errno));
+ return;
+ }
+
+ // Set the unicast hoplimit to 255 (link-local only).
+ hops = kLinkLocalHopLimit;
+ len = sizeof(hops);
+ if (setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &hops, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "setsockopt(IPV6_UNICAST_HOPS): %s", strerror(errno));
+ return;
+ }
+
+ // Explicitly disable multicast loopback.
+ int off = 0;
+ len = sizeof(off);
+ if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &off, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "setsockopt(IPV6_MULTICAST_LOOP): %s", strerror(errno));
+ return;
+ }
+
+ // Specify the IPv6 interface to use for outbound multicast.
+ len = sizeof(ifIndex);
+ if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_IF, &ifIndex, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "setsockopt(IPV6_MULTICAST_IF): %s", strerror(errno));
+ return;
+ }
+
+ // Additional options to be considered:
+ // - IPV6_TCLASS
+ // - IPV6_RECVPKTINFO
+ // - IPV6_RECVHOPLIMIT
+
+ // Bind to [::].
+ const struct sockaddr_in6 sin6 = {
+ .sin6_family = AF_INET6,
+ .sin6_port = 0,
+ .sin6_flowinfo = 0,
+ .sin6_addr = IN6ADDR_ANY_INIT,
+ .sin6_scope_id = 0,
+ };
+ auto sa = reinterpret_cast<const struct sockaddr *>(&sin6);
+ len = sizeof(sin6);
+ if (bind(fd, sa, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "bind(IN6ADDR_ANY): %s", strerror(errno));
+ return;
+ }
+
+ // Join the all-routers multicast group, ff02::2%index.
+ struct ipv6_mreq all_rtrs = {
+ .ipv6mr_multiaddr = {{{0xff,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2}}},
+ .ipv6mr_interface = ifIndex,
+ };
+ len = sizeof(all_rtrs);
+ if (setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &all_rtrs, len) != 0) {
+ jniThrowExceptionFmt(env, "java/net/SocketException",
+ "setsockopt(IPV6_JOIN_GROUP): %s", strerror(errno));
+ return;
+ }
+}
+
+/*
+ * JNI registration.
+ */
+static const JNINativeMethod gMethods[] = {
+ /* name, signature, funcPtr */
+ { "configOffload", "()Z", (void*) android_net_util_configOffload },
+ { "setupRaSocket", "(Ljava/io/FileDescriptor;I)V", (void*) android_net_util_setupRaSocket },
+};
+
+int register_android_net_util_TetheringUtils(JNIEnv* env) {
+ return jniRegisterNativeMethods(env,
+ "android/net/util/TetheringUtils",
+ gMethods, NELEM(gMethods));
+}
+
+extern "C" jint JNI_OnLoad(JavaVM* vm, void*) {
+ JNIEnv *env;
+ if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+ ALOGE("ERROR: GetEnv failed");
+ return JNI_ERR;
+ }
+
+ if (register_android_net_util_TetheringUtils(env) < 0) {
+ return JNI_ERR;
+ }
+
+ return JNI_VERSION_1_6;
+}
+
+}; // namespace android
diff --git a/packages/Tethering/jni/com_android_server_connectivity_tethering_OffloadHardwareInterface.cpp b/packages/Tethering/jni/com_android_server_connectivity_tethering_OffloadHardwareInterface.cpp
deleted file mode 100644
index 663154a..0000000
--- a/packages/Tethering/jni/com_android_server_connectivity_tethering_OffloadHardwareInterface.cpp
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Copyright (C) 2017 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 <errno.h>
-#include <error.h>
-#include <hidl/HidlSupport.h>
-#include <jni.h>
-#include <nativehelper/JNIHelp.h>
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netlink.h>
-#include <sys/socket.h>
-#include <android-base/unique_fd.h>
-#include <android/hardware/tetheroffload/config/1.0/IOffloadConfig.h>
-
-#define LOG_TAG "OffloadHardwareInterface"
-#include <utils/Log.h>
-
-namespace android {
-
-using hardware::hidl_handle;
-using hardware::hidl_string;
-using hardware::tetheroffload::config::V1_0::IOffloadConfig;
-
-namespace {
-
-inline const sockaddr * asSockaddr(const sockaddr_nl *nladdr) {
- return reinterpret_cast<const sockaddr *>(nladdr);
-}
-
-int conntrackSocket(unsigned groups) {
- base::unique_fd s(socket(AF_NETLINK, SOCK_DGRAM, NETLINK_NETFILTER));
- if (s.get() < 0) return -errno;
-
- const struct sockaddr_nl bind_addr = {
- .nl_family = AF_NETLINK,
- .nl_pad = 0,
- .nl_pid = 0,
- .nl_groups = groups,
- };
- if (bind(s.get(), asSockaddr(&bind_addr), sizeof(bind_addr)) != 0) {
- return -errno;
- }
-
- const struct sockaddr_nl kernel_addr = {
- .nl_family = AF_NETLINK,
- .nl_pad = 0,
- .nl_pid = 0,
- .nl_groups = groups,
- };
- if (connect(s.get(), asSockaddr(&kernel_addr), sizeof(kernel_addr)) != 0) {
- return -errno;
- }
-
- return s.release();
-}
-
-// Return a hidl_handle that owns the file descriptor owned by fd, and will
-// auto-close it (otherwise there would be double-close problems).
-//
-// Rely upon the compiler to eliminate the constexprs used for clarity.
-hidl_handle handleFromFileDescriptor(base::unique_fd fd) {
- hidl_handle h;
-
- static constexpr int kNumFds = 1;
- static constexpr int kNumInts = 0;
- native_handle_t *nh = native_handle_create(kNumFds, kNumInts);
- nh->data[0] = fd.release();
-
- static constexpr bool kTakeOwnership = true;
- h.setTo(nh, kTakeOwnership);
-
- return h;
-}
-
-} // namespace
-
-static jboolean android_server_connectivity_tethering_OffloadHardwareInterface_configOffload(
- JNIEnv* /* env */) {
- sp<IOffloadConfig> configInterface = IOffloadConfig::getService();
- if (configInterface.get() == nullptr) {
- ALOGD("Could not find IOffloadConfig service.");
- return false;
- }
-
- // Per the IConfigOffload definition:
- //
- // fd1 A file descriptor bound to the following netlink groups
- // (NF_NETLINK_CONNTRACK_NEW | NF_NETLINK_CONNTRACK_DESTROY).
- //
- // fd2 A file descriptor bound to the following netlink groups
- // (NF_NETLINK_CONNTRACK_UPDATE | NF_NETLINK_CONNTRACK_DESTROY).
- base::unique_fd
- fd1(conntrackSocket(NF_NETLINK_CONNTRACK_NEW | NF_NETLINK_CONNTRACK_DESTROY)),
- fd2(conntrackSocket(NF_NETLINK_CONNTRACK_UPDATE | NF_NETLINK_CONNTRACK_DESTROY));
- if (fd1.get() < 0 || fd2.get() < 0) {
- ALOGE("Unable to create conntrack handles: %d/%s", errno, strerror(errno));
- return false;
- }
-
- hidl_handle h1(handleFromFileDescriptor(std::move(fd1))),
- h2(handleFromFileDescriptor(std::move(fd2)));
-
- bool rval(false);
- hidl_string msg;
- const auto status = configInterface->setHandles(h1, h2,
- [&rval, &msg](bool success, const hidl_string& errMsg) {
- rval = success;
- msg = errMsg;
- });
- if (!status.isOk() || !rval) {
- ALOGE("IOffloadConfig::setHandles() error: '%s' / '%s'",
- status.description().c_str(), msg.c_str());
- // If status is somehow not ok, make sure rval captures this too.
- rval = false;
- }
-
- return rval;
-}
-
-/*
- * JNI registration.
- */
-static const JNINativeMethod gMethods[] = {
- /* name, signature, funcPtr */
- { "configOffload", "()Z",
- (void*) android_server_connectivity_tethering_OffloadHardwareInterface_configOffload },
-};
-
-int register_android_server_connectivity_tethering_OffloadHardwareInterface(JNIEnv* env) {
- return jniRegisterNativeMethods(env,
- "com/android/server/connectivity/tethering/OffloadHardwareInterface",
- gMethods, NELEM(gMethods));
-}
-
-extern "C" jint JNI_OnLoad(JavaVM* vm, void*) {
- JNIEnv *env;
- if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
- ALOGE("ERROR: GetEnv failed");
- return JNI_ERR;
- }
-
- if (register_android_server_connectivity_tethering_OffloadHardwareInterface(env) < 0) {
- return JNI_ERR;
- }
-
- return JNI_VERSION_1_6;
-}
-
-}; // namespace android
diff --git a/packages/Tethering/src/android/net/ip/RouterAdvertisementDaemon.java b/packages/Tethering/src/android/net/ip/RouterAdvertisementDaemon.java
index 4147413..4396cdb 100644
--- a/packages/Tethering/src/android/net/ip/RouterAdvertisementDaemon.java
+++ b/packages/Tethering/src/android/net/ip/RouterAdvertisementDaemon.java
@@ -30,6 +30,7 @@
import android.net.NetworkUtils;
import android.net.TrafficStats;
import android.net.util.InterfaceParams;
+import android.net.util.TetheringUtils;
import android.system.ErrnoException;
import android.system.Os;
import android.system.StructTimeval;
@@ -613,7 +614,7 @@
mSocket, SOL_SOCKET, SO_SNDTIMEO, StructTimeval.fromMillis(send_timout_ms));
Os.setsockoptIfreq(mSocket, SOL_SOCKET, SO_BINDTODEVICE, mInterface.name);
NetworkUtils.protectFromVpn(mSocket);
- NetworkUtils.setupRaSocket(mSocket, mInterface.index);
+ TetheringUtils.setupRaSocket(mSocket, mInterface.index);
} catch (ErrnoException | IOException e) {
Log.e(TAG, "Failed to create RA daemon socket: " + e);
return false;
diff --git a/packages/Tethering/src/android/net/util/TetheringUtils.java b/packages/Tethering/src/android/net/util/TetheringUtils.java
new file mode 100644
index 0000000..2fb73ce
--- /dev/null
+++ b/packages/Tethering/src/android/net/util/TetheringUtils.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+package android.net.util;
+
+import java.io.FileDescriptor;
+import java.net.SocketException;
+
+/**
+ * Native methods for tethering utilization.
+ *
+ * {@hide}
+ */
+public class TetheringUtils {
+
+ /**
+ * Offload management process need to know conntrack rules to support NAT, but it may not have
+ * permission to create netlink netfilter sockets. Create two netlink netfilter sockets and
+ * share them with offload management process.
+ */
+ public static native boolean configOffload();
+
+ /**
+ * Configures a socket for receiving ICMPv6 router solicitations and sending advertisements.
+ * @param fd the socket's {@link FileDescriptor}.
+ * @param ifIndex the interface index.
+ */
+ public static native void setupRaSocket(FileDescriptor fd, int ifIndex)
+ throws SocketException;
+}
diff --git a/packages/Tethering/src/com/android/server/connectivity/tethering/OffloadHardwareInterface.java b/packages/Tethering/src/com/android/server/connectivity/tethering/OffloadHardwareInterface.java
index 00a6773..85164ed 100644
--- a/packages/Tethering/src/com/android/server/connectivity/tethering/OffloadHardwareInterface.java
+++ b/packages/Tethering/src/com/android/server/connectivity/tethering/OffloadHardwareInterface.java
@@ -24,6 +24,7 @@
import android.hardware.tetheroffload.control.V1_0.NetworkProtocol;
import android.hardware.tetheroffload.control.V1_0.OffloadCallbackEvent;
import android.net.util.SharedLog;
+import android.net.util.TetheringUtils;
import android.os.Handler;
import android.os.RemoteException;
import android.system.OsConstants;
@@ -47,8 +48,6 @@
private static final String NO_IPV4_ADDRESS = "";
private static final String NO_IPV4_GATEWAY = "";
- private static native boolean configOffload();
-
private final Handler mHandler;
private final SharedLog mLog;
private IOffloadControl mOffloadControl;
@@ -107,8 +106,6 @@
public OffloadHardwareInterface(Handler h, SharedLog log) {
mHandler = h;
mLog = log.forSubComponent(TAG);
-
- System.loadLibrary("tetheroffloadjni");
}
/** Get default value indicating whether offload is supported. */
@@ -118,7 +115,7 @@
/** Configure offload management process. */
public boolean initOffloadConfig() {
- return configOffload();
+ return TetheringUtils.configOffload();
}
/** Initialize the tethering offload HAL. */
diff --git a/packages/Tethering/src/com/android/server/connectivity/tethering/TetheringService.java b/packages/Tethering/src/com/android/server/connectivity/tethering/TetheringService.java
index ba30845..1d59986 100644
--- a/packages/Tethering/src/com/android/server/connectivity/tethering/TetheringService.java
+++ b/packages/Tethering/src/com/android/server/connectivity/tethering/TetheringService.java
@@ -84,6 +84,7 @@
*/
@VisibleForTesting
public Tethering makeTethering(TetheringDependencies deps) {
+ System.loadLibrary("tetherutilsjni");
return new Tethering(deps);
}