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io.netty.channel.epoll.LinuxSocket Maven / Gradle / Ivy
/*
* 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:
*
* 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 io.netty.channel.epoll;
import io.netty.channel.ChannelException;
import io.netty.channel.DefaultFileRegion;
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 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;
/**
* A socket which provides access Linux native methods.
*/
final class LinuxSocket extends Socket {
static final InetAddress INET6_ANY = unsafeInetAddrByName("::");
private static final InetAddress INET_ANY = unsafeInetAddrByName("0.0.0.0");
private static final long MAX_UINT32_T = 0xFFFFFFFFL;
LinuxSocket(int fd) {
super(fd);
}
private 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);
}
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 ? INET_ANY : 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) {
final NativeInetAddress s = NativeInetAddress.newInstance(source);
joinSsmGroup(intValue(), ipv6, g.address(), i.address(),
g.scopeId(), interfaceIndex(netInterface), s.address());
} else {
joinGroup(intValue(), ipv6, 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) {
final NativeInetAddress s = NativeInetAddress.newInstance(source);
leaveSsmGroup(intValue(), ipv6, g.address(), i.address(),
g.scopeId(), interfaceIndex(netInterface), s.address());
} else {
leaveGroup(intValue(), ipv6, 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 setTcpFastOpenConnect(boolean tcpFastOpenConnect) throws IOException {
setTcpFastOpenConnect(intValue(), tcpFastOpenConnect ? 1 : 0);
}
boolean isTcpFastOpenConnect() throws IOException {
return isTcpFastOpenConnect(intValue()) != 0;
}
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);
}
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);
}
private static InetAddress deriveInetAddress(NetworkInterface netInterface, boolean ipv6) {
final InetAddress ipAny = ipv6 ? INET6_ANY : 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 newSocketStream(boolean ipv6) {
return new LinuxSocket(newSocketStream0(ipv6));
}
public static LinuxSocket newSocketStream() {
return newSocketStream(isIPv6Preferred());
}
public static LinuxSocket newSocketDgram(boolean ipv6) {
return new LinuxSocket(newSocketDgram0(ipv6));
}
public static LinuxSocket newSocketDgram() {
return newSocketDgram(isIPv6Preferred());
}
public static LinuxSocket newSocketDomain() {
return new LinuxSocket(newSocketDomain0());
}
private static InetAddress unsafeInetAddrByName(String inetName) {
try {
return InetAddress.getByName(inetName);
} catch (UnknownHostException uhe) {
throw new ChannelException(uhe);
}
}
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 int isTcpFastOpenConnect(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 setTcpFastOpenConnect(int fd, int tcpFastOpenConnect) 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;
}
