Change tetheroffloadjni to tetheringutilsjni
Rename tetheroffloadjni to tetheringutilsjni and move setupRaSocket
jni method from NetUtils into tetheringutilsjni.
Bug: 143195885
Test: -build, flash, boot
-atest TetheringTests
-Off/On hotspot with ipv6 upstream
Change-Id: Ib68eb6999bbe2d3ca97e68712f22b105311ef800
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 },