io.netty.channel.epoll.LinuxSocket Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* Copyright 2016 The Netty Project
*
* The Netty Project licenses this file to you 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:
*
* https://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 io.netty.channel.epoll;
import io.netty.channel.ChannelException;
import io.netty.channel.DefaultFileRegion;
import io.netty.channel.unix.Errors;
import io.netty.channel.unix.NativeInetAddress;
import io.netty.channel.unix.PeerCredentials;
import io.netty.channel.unix.Socket;
import io.netty.channel.socket.InternetProtocolFamily;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SocketUtils;
import io.netty.util.internal.UnstableApi;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Inet6Address;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.util.Enumeration;
import static io.netty.channel.unix.Errors.ioResult;
import static io.netty.channel.unix.Errors.newIOException;
/**
* A socket which provides access Linux native methods.
*/
@UnstableApi
public final class LinuxSocket extends Socket {
private static final long MAX_UINT32_T = 0xFFFFFFFFL;
LinuxSocket(int fd) {
super(fd);
}
InternetProtocolFamily family() {
return ipv6 ? InternetProtocolFamily.IPv6 : InternetProtocolFamily.IPv4;
}
int sendmmsg(NativeDatagramPacketArray.NativeDatagramPacket[] msgs,
int offset, int len) throws IOException {
return Native.sendmmsg(intValue(), ipv6, msgs, offset, len);
}
int recvmmsg(NativeDatagramPacketArray.NativeDatagramPacket[] msgs,
int offset, int len) throws IOException {
return Native.recvmmsg(intValue(), ipv6, msgs, offset, len);
}
int recvmsg(NativeDatagramPacketArray.NativeDatagramPacket msg) throws IOException {
return Native.recvmsg(intValue(), ipv6, msg);
}
void setTimeToLive(int ttl) throws IOException {
setTimeToLive(intValue(), ttl);
}
void setInterface(InetAddress address) throws IOException {
final NativeInetAddress a = NativeInetAddress.newInstance(address);
setInterface(intValue(), ipv6, a.address(), a.scopeId(), interfaceIndex(address));
}
void setNetworkInterface(NetworkInterface netInterface) throws IOException {
InetAddress address = deriveInetAddress(netInterface, family() == InternetProtocolFamily.IPv6);
if (address.equals(family() == InternetProtocolFamily.IPv4 ? Native.INET_ANY : Native.INET6_ANY)) {
throw new IOException("NetworkInterface does not support " + family());
}
final NativeInetAddress nativeAddress = NativeInetAddress.newInstance(address);
setInterface(intValue(), ipv6, nativeAddress.address(), nativeAddress.scopeId(), interfaceIndex(netInterface));
}
InetAddress getInterface() throws IOException {
NetworkInterface inf = getNetworkInterface();
if (inf != null) {
Enumeration addresses = SocketUtils.addressesFromNetworkInterface(inf);
if (addresses.hasMoreElements()) {
return addresses.nextElement();
}
}
return null;
}
NetworkInterface getNetworkInterface() throws IOException {
int ret = getInterface(intValue(), ipv6);
if (ipv6) {
return PlatformDependent.javaVersion() >= 7 ? NetworkInterface.getByIndex(ret) : null;
}
InetAddress address = inetAddress(ret);
return address != null ? NetworkInterface.getByInetAddress(address) : null;
}
private static InetAddress inetAddress(int value) {
byte[] var1 = {
(byte) (value >>> 24 & 255),
(byte) (value >>> 16 & 255),
(byte) (value >>> 8 & 255),
(byte) (value & 255)
};
try {
return InetAddress.getByAddress(var1);
} catch (UnknownHostException ignore) {
return null;
}
}
void joinGroup(InetAddress group, NetworkInterface netInterface, InetAddress source) throws IOException {
final NativeInetAddress g = NativeInetAddress.newInstance(group);
final boolean isIpv6 = group instanceof Inet6Address;
final NativeInetAddress i = NativeInetAddress.newInstance(deriveInetAddress(netInterface, isIpv6));
if (source != null) {
if (source.getClass() != group.getClass()) {
throw new IllegalArgumentException("Source address is different type to group");
}
final NativeInetAddress s = NativeInetAddress.newInstance(source);
joinSsmGroup(intValue(), ipv6 && isIpv6, g.address(), i.address(),
g.scopeId(), interfaceIndex(netInterface), s.address());
} else {
joinGroup(intValue(), ipv6 && isIpv6, g.address(), i.address(), g.scopeId(), interfaceIndex(netInterface));
}
}
void leaveGroup(InetAddress group, NetworkInterface netInterface, InetAddress source) throws IOException {
final NativeInetAddress g = NativeInetAddress.newInstance(group);
final boolean isIpv6 = group instanceof Inet6Address;
final NativeInetAddress i = NativeInetAddress.newInstance(deriveInetAddress(netInterface, isIpv6));
if (source != null) {
if (source.getClass() != group.getClass()) {
throw new IllegalArgumentException("Source address is different type to group");
}
final NativeInetAddress s = NativeInetAddress.newInstance(source);
leaveSsmGroup(intValue(), ipv6 && isIpv6, g.address(), i.address(),
g.scopeId(), interfaceIndex(netInterface), s.address());
} else {
leaveGroup(intValue(), ipv6 && isIpv6, g.address(), i.address(), g.scopeId(), interfaceIndex(netInterface));
}
}
private static int interfaceIndex(NetworkInterface networkInterface) {
return PlatformDependent.javaVersion() >= 7 ? networkInterface.getIndex() : -1;
}
private static int interfaceIndex(InetAddress address) throws IOException {
if (PlatformDependent.javaVersion() >= 7) {
NetworkInterface iface = NetworkInterface.getByInetAddress(address);
if (iface != null) {
return iface.getIndex();
}
}
return -1;
}
void setTcpDeferAccept(int deferAccept) throws IOException {
setTcpDeferAccept(intValue(), deferAccept);
}
void setTcpQuickAck(boolean quickAck) throws IOException {
setTcpQuickAck(intValue(), quickAck ? 1 : 0);
}
void setTcpCork(boolean tcpCork) throws IOException {
setTcpCork(intValue(), tcpCork ? 1 : 0);
}
void setSoBusyPoll(int loopMicros) throws IOException {
setSoBusyPoll(intValue(), loopMicros);
}
void setTcpNotSentLowAt(long tcpNotSentLowAt) throws IOException {
if (tcpNotSentLowAt < 0 || tcpNotSentLowAt > MAX_UINT32_T) {
throw new IllegalArgumentException("tcpNotSentLowAt must be a uint32_t");
}
setTcpNotSentLowAt(intValue(), (int) tcpNotSentLowAt);
}
void setTcpFastOpen(int tcpFastopenBacklog) throws IOException {
setTcpFastOpen(intValue(), tcpFastopenBacklog);
}
void setTcpKeepIdle(int seconds) throws IOException {
setTcpKeepIdle(intValue(), seconds);
}
void setTcpKeepIntvl(int seconds) throws IOException {
setTcpKeepIntvl(intValue(), seconds);
}
void setTcpKeepCnt(int probes) throws IOException {
setTcpKeepCnt(intValue(), probes);
}
void setTcpUserTimeout(int milliseconds) throws IOException {
setTcpUserTimeout(intValue(), milliseconds);
}
void setIpFreeBind(boolean enabled) throws IOException {
setIpFreeBind(intValue(), enabled ? 1 : 0);
}
void setIpTransparent(boolean enabled) throws IOException {
setIpTransparent(intValue(), enabled ? 1 : 0);
}
void setIpRecvOrigDestAddr(boolean enabled) throws IOException {
setIpRecvOrigDestAddr(intValue(), enabled ? 1 : 0);
}
int getTimeToLive() throws IOException {
return getTimeToLive(intValue());
}
void getTcpInfo(EpollTcpInfo info) throws IOException {
getTcpInfo(intValue(), info.info);
}
void setTcpMd5Sig(InetAddress address, byte[] key) throws IOException {
final NativeInetAddress a = NativeInetAddress.newInstance(address);
setTcpMd5Sig(intValue(), ipv6, a.address(), a.scopeId(), key);
}
boolean isTcpCork() throws IOException {
return isTcpCork(intValue()) != 0;
}
int getSoBusyPoll() throws IOException {
return getSoBusyPoll(intValue());
}
int getTcpDeferAccept() throws IOException {
return getTcpDeferAccept(intValue());
}
boolean isTcpQuickAck() throws IOException {
return isTcpQuickAck(intValue()) != 0;
}
long getTcpNotSentLowAt() throws IOException {
return getTcpNotSentLowAt(intValue()) & MAX_UINT32_T;
}
int getTcpKeepIdle() throws IOException {
return getTcpKeepIdle(intValue());
}
int getTcpKeepIntvl() throws IOException {
return getTcpKeepIntvl(intValue());
}
int getTcpKeepCnt() throws IOException {
return getTcpKeepCnt(intValue());
}
int getTcpUserTimeout() throws IOException {
return getTcpUserTimeout(intValue());
}
boolean isIpFreeBind() throws IOException {
return isIpFreeBind(intValue()) != 0;
}
boolean isIpTransparent() throws IOException {
return isIpTransparent(intValue()) != 0;
}
boolean isIpRecvOrigDestAddr() throws IOException {
return isIpRecvOrigDestAddr(intValue()) != 0;
}
PeerCredentials getPeerCredentials() throws IOException {
return getPeerCredentials(intValue());
}
boolean isLoopbackModeDisabled() throws IOException {
return getIpMulticastLoop(intValue(), ipv6) == 0;
}
void setLoopbackModeDisabled(boolean loopbackModeDisabled) throws IOException {
setIpMulticastLoop(intValue(), ipv6, loopbackModeDisabled ? 0 : 1);
}
boolean isUdpGro() throws IOException {
return isUdpGro(intValue()) != 0;
}
void setUdpGro(boolean gro) throws IOException {
setUdpGro(intValue(), gro ? 1 : 0);
}
long sendFile(DefaultFileRegion src, long baseOffset, long offset, long length) throws IOException {
// Open the file-region as it may be created via the lazy constructor. This is needed as we directly access
// the FileChannel field via JNI.
src.open();
long res = sendFile(intValue(), src, baseOffset, offset, length);
if (res >= 0) {
return res;
}
return ioResult("sendfile", (int) res);
}
public void bindVSock(VSockAddress address) throws IOException {
int res = bindVSock(/*fd*/intValue(), address.getCid(), address.getPort());
if (res < 0) {
throw newIOException("bindVSock", res);
}
}
public boolean connectVSock(VSockAddress address) throws IOException {
int res = connectVSock(/*fd*/intValue(), address.getCid(), address.getPort());
if (res < 0) {
return Errors.handleConnectErrno("connectVSock", res);
}
return true;
}
public VSockAddress remoteVSockAddress() {
byte[] addr = remoteVSockAddress(/*fd*/intValue());
if (addr == null) {
return null;
}
int cid = getIntAt(addr, 0);
int port = getIntAt(addr, 4);
return new VSockAddress(cid, port);
}
public VSockAddress localVSockAddress() {
byte[] addr = localVSockAddress(/*fd*/intValue());
if (addr == null) {
return null;
}
int cid = getIntAt(addr, 0);
int port = getIntAt(addr, 4);
return new VSockAddress(cid, port);
}
private static int getIntAt(byte[] array, int startIndex) {
return array[startIndex] << 24 | (array[startIndex + 1] & 0xFF) << 16
| (array[startIndex + 2] & 0xFF) << 8 | (array[startIndex + 3] & 0xFF);
}
private static InetAddress deriveInetAddress(NetworkInterface netInterface, boolean ipv6) {
final InetAddress ipAny = ipv6 ? Native.INET6_ANY : Native.INET_ANY;
if (netInterface != null) {
final Enumeration ias = netInterface.getInetAddresses();
while (ias.hasMoreElements()) {
final InetAddress ia = ias.nextElement();
final boolean isV6 = ia instanceof Inet6Address;
if (isV6 == ipv6) {
return ia;
}
}
}
return ipAny;
}
public static LinuxSocket newSocket(int fd) {
return new LinuxSocket(fd);
}
public static LinuxSocket newVSockStream() {
return new LinuxSocket(newVSockStream0());
}
static int newVSockStream0() {
int res = newVSockStreamFd();
if (res < 0) {
throw new ChannelException(newIOException("newVSockStream", res));
}
return res;
}
public static LinuxSocket newSocketStream(boolean ipv6) {
return new LinuxSocket(newSocketStream0(ipv6));
}
public static LinuxSocket newSocketStream(InternetProtocolFamily protocol) {
return new LinuxSocket(newSocketStream0(protocol));
}
public static LinuxSocket newSocketStream() {
return newSocketStream(isIPv6Preferred());
}
public static LinuxSocket newSocketDgram(boolean ipv6) {
return new LinuxSocket(newSocketDgram0(ipv6));
}
public static LinuxSocket newSocketDgram(InternetProtocolFamily family) {
return new LinuxSocket(newSocketDgram0(family));
}
public static LinuxSocket newSocketDgram() {
return newSocketDgram(isIPv6Preferred());
}
public static LinuxSocket newSocketDomain() {
return new LinuxSocket(newSocketDomain0());
}
public static LinuxSocket newSocketDomainDgram() {
return new LinuxSocket(newSocketDomainDgram0());
}
private static native int newVSockStreamFd();
private static native int bindVSock(int fd, int cid, int port);
private static native int connectVSock(int fd, int cid, int port);
private static native byte[] remoteVSockAddress(int fd);
private static native byte[] localVSockAddress(int fd);
private static native void joinGroup(int fd, boolean ipv6, byte[] group, byte[] interfaceAddress,
int scopeId, int interfaceIndex) throws IOException;
private static native void joinSsmGroup(int fd, boolean ipv6, byte[] group, byte[] interfaceAddress,
int scopeId, int interfaceIndex, byte[] source) throws IOException;
private static native void leaveGroup(int fd, boolean ipv6, byte[] group, byte[] interfaceAddress,
int scopeId, int interfaceIndex) throws IOException;
private static native void leaveSsmGroup(int fd, boolean ipv6, byte[] group, byte[] interfaceAddress,
int scopeId, int interfaceIndex, byte[] source) throws IOException;
private static native long sendFile(int socketFd, DefaultFileRegion src, long baseOffset,
long offset, long length) throws IOException;
private static native int getTcpDeferAccept(int fd) throws IOException;
private static native int isTcpQuickAck(int fd) throws IOException;
private static native int isTcpCork(int fd) throws IOException;
private static native int getSoBusyPoll(int fd) throws IOException;
private static native int getTcpNotSentLowAt(int fd) throws IOException;
private static native int getTcpKeepIdle(int fd) throws IOException;
private static native int getTcpKeepIntvl(int fd) throws IOException;
private static native int getTcpKeepCnt(int fd) throws IOException;
private static native int getTcpUserTimeout(int fd) throws IOException;
private static native int getTimeToLive(int fd) throws IOException;
private static native int isIpFreeBind(int fd) throws IOException;
private static native int isIpTransparent(int fd) throws IOException;
private static native int isIpRecvOrigDestAddr(int fd) throws IOException;
private static native void getTcpInfo(int fd, long[] array) throws IOException;
private static native PeerCredentials getPeerCredentials(int fd) throws IOException;
private static native void setTcpDeferAccept(int fd, int deferAccept) throws IOException;
private static native void setTcpQuickAck(int fd, int quickAck) throws IOException;
private static native void setTcpCork(int fd, int tcpCork) throws IOException;
private static native void setSoBusyPoll(int fd, int loopMicros) throws IOException;
private static native void setTcpNotSentLowAt(int fd, int tcpNotSentLowAt) throws IOException;
private static native void setTcpFastOpen(int fd, int tcpFastopenBacklog) throws IOException;
private static native void setTcpKeepIdle(int fd, int seconds) throws IOException;
private static native void setTcpKeepIntvl(int fd, int seconds) throws IOException;
private static native void setTcpKeepCnt(int fd, int probes) throws IOException;
private static native void setTcpUserTimeout(int fd, int milliseconds)throws IOException;
private static native void setIpFreeBind(int fd, int freeBind) throws IOException;
private static native void setIpTransparent(int fd, int transparent) throws IOException;
private static native void setIpRecvOrigDestAddr(int fd, int transparent) throws IOException;
private static native void setTcpMd5Sig(
int fd, boolean ipv6, byte[] address, int scopeId, byte[] key) throws IOException;
private static native void setInterface(
int fd, boolean ipv6, byte[] interfaceAddress, int scopeId, int networkInterfaceIndex) throws IOException;
private static native int getInterface(int fd, boolean ipv6);
private static native int getIpMulticastLoop(int fd, boolean ipv6) throws IOException;
private static native void setIpMulticastLoop(int fd, boolean ipv6, int enabled) throws IOException;
private static native void setTimeToLive(int fd, int ttl) throws IOException;
private static native int isUdpGro(int fd) throws IOException;
private static native void setUdpGro(int fd, int gro) throws IOException;
}