Initial commit of multiple project merge

connection_type_change
nathan 3 years ago
parent 497ad34b72
commit 44f4ac1aa1

121
.gitignore vendored

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# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
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##########################################################
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- NetworkUtils - Provides various utilities for managing network configurations, IP/MAC address conversion, and ping (via OS native commands)
[The Apache Software License, Version 2.0]
https://git.dorkbox.com/dorkbox/NetworkUtils
Copyright 2020
Dorkbox LLC
Extra license information
- Netty -
[The Apache Software License, Version 2.0]
https://netty.io/
Copyright 2014
The Netty Project
This product contains a modified portion of Netty Network Utils
- Apache Harmony -
[The Apache Software License, Version 2.0]
http://archive.apache.org/dist/harmony/
Copyright 2010
The Apache Software Foundation
This product contains a modified portion of 'Apache Harmony', an open source Java SE
- Kotlin -
[The Apache Software License, Version 2.0]
https://github.com/JetBrains/kotlin
Copyright 2020
JetBrains s.r.o. and Kotlin Programming Language contributors
Kotlin Compiler, Test Data+Libraries, and Tools repository contain third-party code, to which different licenses may apply
See: https://github.com/JetBrains/kotlin/blob/master/license/README.md
- kotlin-logging - Lightweight logging framework for Kotlin
[The Apache Software License, Version 2.0]
https://github.com/MicroUtils/kotlin-logging
Copyright 2020
Ohad Shai
- SLF4J - Simple facade or abstraction for various logging frameworks
[MIT License]
http://www.slf4j.org
Copyright 2019
QOS.ch
- Executor - Shell, JVM, and SSH command execution on Linux, MacOS, or Windows for Java 11+
[The Apache Software License, Version 2.0]
https://git.dorkbox.com/dorkbox/Executor
Copyright 2020
Dorkbox LLC
Extra license information
- ZT Process Executor -
[The Apache Software License, Version 2.0]
https://github.com/zeroturnaround/zt-exec
Copyright 2014
ZeroTurnaround LLC
- Apache Commons Exec -
[The Apache Software License, Version 2.0]
https://commons.apache.org/proper/commons-exec/
Copyright 2014
The Apache Software Foundation
- Kotlin -
[The Apache Software License, Version 2.0]
https://github.com/JetBrains/kotlin
Copyright 2020
JetBrains s.r.o. and Kotlin Programming Language contributors
Kotlin Compiler, Test Data+Libraries, and Tools repository contain third-party code, to which different licenses may apply
See: https://github.com/JetBrains/kotlin/blob/master/license/README.md
- kotlinx.coroutines - Library support for Kotlin coroutines with multiplatform support
[The Apache Software License, Version 2.0]
https://github.com/Kotlin/kotlinx.coroutines
Copyright 2020
JetBrains s.r.o.
- kotlin-logging - Lightweight logging framework for Kotlin
[The Apache Software License, Version 2.0]
https://github.com/MicroUtils/kotlin-logging
Copyright 2020
Ohad Shai
- SLF4J - Simple facade or abstraction for various logging frameworks
[MIT License]
http://www.slf4j.org
Copyright 2019
QOS.ch
- SSHJ - SSHv2 library for Java
[The Apache Software License, Version 2.0]
https://github.com/hierynomus/sshj
Copyright 2020
Jeroen van Erp
SSHJ Contributors
Extra license information
- Apache MINA -
[The Apache Software License, Version 2.0]
https://mina.apache.org/sshd-project/
The Apache Software Foundation
- Apache Commons-Net -
[The Apache Software License, Version 2.0]
https://commons.apache.org/proper/commons-net/
The Apache Software Foundation
- JZlib -
[The Apache Software License, Version 2.0]
http://www.jcraft.com/jzlib
Atsuhiko Yamanaka
JCraft, Inc.
- Bouncy Castle Crypto -
[The Apache Software License, Version 2.0]
http://www.bouncycastle.org
The Legion of the Bouncy Castle Inc
- ed25519-java -
[Public Domain, per Creative Commons CC0]
https://github.com/str4d/ed25519-java
https://github.com/str4d

@ -0,0 +1,218 @@
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MIT License
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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NetworkUtils
============
###### [![Dorkbox](https://badge.dorkbox.com/dorkbox.svg "Dorkbox")](https://git.dorkbox.com/dorkbox/ObjectPool) [![Github](https://badge.dorkbox.com/github.svg "Github")](https://github.com/dorkbox/ObjectPool) [![Gitlab](https://badge.dorkbox.com/gitlab.svg "Gitlab")](https://gitlab.com/dorkbox/ObjectPool) [![Bitbucket](https://badge.dorkbox.com/bitbucket.svg "Bitbucket")](https://bitbucket.org/dorkbox/ObjectPool)
Provides various Network Utilities, for IP/MAC address conversion, PING (without having to be root or with proper permissions) and managing various linux network properties
```
 
 
Maven Info
---------
```
<dependencies>
...
<dependency>
<groupId>com.dorkbox</groupId>
<artifactId>NetworkUtils</artifactId>
<version>0.1</version>
</dependency>
</dependencies>
```
Gradle Info
---------
````
dependencies {
...
compile 'com.dorkbox:NetworkUtils:0.1'
}
````
License
---------
This project is © 2014 dorkbox llc, and is distributed under the terms of the Apache v2.0 License. See file "LICENSE" for further references.

@ -0,0 +1,153 @@
/*
* Copyright 2020 dorkbox, llc
*
* 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.
*/
import dorkbox.gradle.kotlin
import java.time.Instant
///////////////////////////////
////// PUBLISH TO SONATYPE / MAVEN CENTRAL
////// TESTING : (to local maven repo) <'publish and release' - 'publishToMavenLocal'>
////// RELEASE : (to sonatype/maven central), <'publish and release' - 'publishToSonatypeAndRelease'>
///////////////////////////////
plugins {
java
id("com.dorkbox.GradleUtils") version "1.9"
id("com.dorkbox.Licensing") version "2.2"
id("com.dorkbox.VersionUpdate") version "2.0"
id("com.dorkbox.GradlePublish") version "1.4"
id("com.dorkbox.GradleModuleInfo") version "1.0"
kotlin("jvm") version "1.3.72"
}
object Extras {
// set for the project
const val description = "Utilities for managing network configurations, IP/MAC address conversion, and ping (via OS native commands)"
const val group = "com.dorkbox"
const val version = "0.1"
// set as project.ext
const val name = "NetworkUtils"
const val id = "NetworkUtils"
const val vendor = "Dorkbox LLC"
const val vendorUrl = "https://dorkbox.com/"
const val url = "https://git.dorkbox.com/dorkbox/NetworkUtils"
val buildDate = Instant.now().toString()
}
///////////////////////////////
///// assign 'Extras'
///////////////////////////////
GradleUtils.load("$projectDir/../../gradle.properties", Extras)
GradleUtils.fixIntellijPaths()
GradleUtils.defaultResolutionStrategy()
GradleUtils.compileConfiguration(JavaVersion.VERSION_11)
licensing {
license(License.APACHE_2) {
description(Extras.description)
url(Extras.url)
author(Extras.vendor)
extra("Netty", License.APACHE_2) {
it.copyright(2014)
it.author("The Netty Project")
it.url("https://netty.io/")
it.note("This product contains a modified portion of Netty Network Utils")
}
extra("Apache Harmony", License.APACHE_2) {
it.copyright(2010)
it.author("The Apache Software Foundation")
it.url("http://archive.apache.org/dist/harmony/")
it.note("This product contains a modified portion of 'Apache Harmony', an open source Java SE")
}
}
}
sourceSets {
main {
java {
setSrcDirs(listOf("src"))
// want to include java files for the source. 'setSrcDirs' resets includes...
include("**/*.java")
}
kotlin {
setSrcDirs(listOf("src"))
// want to include java files for the source. 'setSrcDirs' resets includes...
include("**/*.java", "**/*.kt")
}
}
test {
java {
setSrcDirs(listOf("test"))
// want to include java files for the source. 'setSrcDirs' resets includes...
include("**/*.java")
}
kotlin {
setSrcDirs(listOf("test"))
// want to include java files for the source. 'setSrcDirs' resets includes...
include("**/*.java", "**/*.kt")
}
}
}
repositories {
mavenLocal() // this must be first!
jcenter()
}
tasks.jar.get().apply {
manifest {
// https://docs.oracle.com/javase/tutorial/deployment/jar/packageman.html
attributes["Name"] = Extras.name
attributes["Specification-Title"] = Extras.name
attributes["Specification-Version"] = Extras.version
attributes["Specification-Vendor"] = Extras.vendor
attributes["Implementation-Title"] = "${Extras.group}.${Extras.id}"
attributes["Implementation-Version"] = Extras.buildDate
attributes["Implementation-Vendor"] = Extras.vendor
attributes["Automatic-Module-Name"] = Extras.id
}
}
dependencies {
implementation(kotlin("stdlib-jdk8"))
// https://github.com/MicroUtils/kotlin-logging
implementation("io.github.microutils:kotlin-logging:1.7.9") // slick kotlin wrapper for slf4j
implementation("org.slf4j:slf4j-api:1.7.25")
implementation("com.dorkbox:Executor:1.0")
testImplementation("junit:junit:4.13")
testImplementation("ch.qos.logback:logback-classic:1.2.3")
testImplementation("com.dorkbox:Utilities:1.6")
}

188
gradlew vendored

@ -0,0 +1,188 @@
#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# 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.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin, switch paths to Windows format before running java
if $cygwin ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
cd "$(dirname "$0")"
fi
exec "$JAVACMD" "$@"

100
gradlew.bat vendored

@ -0,0 +1,100 @@
@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem http://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

@ -0,0 +1,15 @@
/*
* Copyright 2018 dorkbox, llc
*
* 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.
*/

@ -0,0 +1,38 @@
package dorkbox.netUtil
import dorkbox.executor.Executor
import java.io.File
object Arp {
// Now setup ARP Proxy for this interface (so ARP requests are answered correctly)
fun proxyAdd(interfaceName: String) {
if (Common.OS_LINUX) {
val file = File("/proc/sys/net/ipv4/conf/$interfaceName/proxy_arp")
if (!file.readText().contains("1")) {
file.appendText("1")
}
} else {
throw RuntimeException("NOT IMPL.")
}
}
fun proxyDel(interfaceName: String) {
if (Common.OS_LINUX) {
val file = File("/proc/sys/net/ipv4/conf/$interfaceName/proxy_arp")
file.delete()
} else {
throw RuntimeException("NOT IMPL.")
}
}
fun add(interfaceName: String, targetIpAddress: String, targetMacAddress: String) {
if (Common.OS_LINUX) {
// have to make sure that the host interface will answer ARP for the "target" ip (normally, it will not for veth interfaces)
Executor()
.command("/usr/sbin/arp", "-i", interfaceName, "-s", targetIpAddress, targetMacAddress)
.startBlocking()
} else {
throw RuntimeException("NOT IMPL.")
}
}
}

@ -0,0 +1,109 @@
@file:Suppress("unused", "MemberVisibilityCanBePrivate")
package dorkbox.netUtil
import mu.KotlinLogging
import java.security.AccessController
import java.security.PrivilegedAction
/**
* Network Utilities. MAC, IP, NameSpace, etc
*/
internal object Common {
val OS_LINUX: Boolean
val OS_WINDOWS: Boolean
val OS_MAC: Boolean
init {
val osName: String = try {
if (System.getSecurityManager() == null) {
System.getProperty("os.name", "linux")
}
else {
AccessController.doPrivileged<String>(PrivilegedAction { System.getProperty("os.name", "linux") })
}
} catch (ignored: java.lang.Exception) {
"linux"
}
if (osName.startsWith("mac") || osName.startsWith("darwin")) {
OS_LINUX = false
OS_WINDOWS = false
OS_MAC = true
} else if (osName.startsWith("windows")) {
OS_LINUX = false
OS_WINDOWS = true
OS_MAC = false
} else {
OS_LINUX = true
OS_WINDOWS = false
OS_MAC = false
}
}
internal val logger = KotlinLogging.logger(Common::class.java.simpleName)
fun getBoolean(property: String, defaultValue: Boolean): Boolean {
var value: String = System.getProperty(property, defaultValue.toString()) ?: return defaultValue
value = value.trim().toLowerCase()
if (value.isEmpty()) {
return defaultValue
}
if ("false" == value || "no" == value || "0" == value) {
return false
}
return if ("true" == value || "yes" == value || "1" == value) {
true
}
else defaultValue
}
private val HEX2B: IntArray = IntArray('f'.toInt()+1).apply {
set('0'.toInt(), 0)
set('1'.toInt(), 1)
set('2'.toInt(), 2)
set('3'.toInt(), 3)
set('4'.toInt(), 4)
set('5'.toInt(), 5)
set('6'.toInt(), 6)
set('7'.toInt(), 7)
set('8'.toInt(), 8)
set('9'.toInt(), 9)
set('A'.toInt(), 10)
set('B'.toInt(), 11)
set('C'.toInt(), 12)
set('D'.toInt(), 13)
set('E'.toInt(), 14)
set('F'.toInt(), 15)
set('a'.toInt(), 10)
set('b'.toInt(), 11)
set('c'.toInt(), 12)
set('d'.toInt(), 13)
set('e'.toInt(), 14)
set('f'.toInt(), 15)
}
/**
* Helper to decode half of a hexadecimal number from a string.
*
* @param c The ASCII character of the hexadecimal number to decode.
* Must be in the range `[0-9a-fA-F]`.
*
* @return The hexadecimal value represented in the ASCII character
* given, or `-1` if the character is invalid.
*/
fun decodeHexNibble(c: Char): Int {
// Character.digit() is not used here, as it addresses a larger
// set of characters (both ASCII and full-width latin letters).
val index = c.toInt()
return try {
HEX2B[index]
} catch (e: Exception) {
-1
}
}
}

@ -0,0 +1,39 @@
package dorkbox.netUtil
import dorkbox.executor.Executor
import java.io.File
/**
*
*/
object Dhcp {
fun start(nameSpace: String, id: String, interfaceName: String) {
if (Common.OS_LINUX) {
stop(nameSpace, id, interfaceName)
val dhcpPidFile = "/var/run/dhclient-$id.pid"
Executor().command("/sbin/dhclient", "-pf", dhcpPidFile, interfaceName).startBlocking();
} else {
throw RuntimeException("NOT IMPL.")
}
}
fun stop(nameSpace: String, id: String, interfaceName: String) {
if (Common.OS_LINUX) {
val dhcpPidFile = "/var/run/dhclient-$id.pid"
// close the dhclient if it was already running (based on pid file), and delete the pid file
Executor().command("/sbin/dhclient", "-r -pf", dhcpPidFile, interfaceName).startBlocking()
// short break
try {
Thread.sleep(500)
} catch (e: InterruptedException) {
e.printStackTrace()
}
File(dhcpPidFile).delete()
} else {
throw RuntimeException("NOT IMPL.")
}
}
}

@ -0,0 +1,41 @@
package dorkbox.netUtil
import dorkbox.executor.Executor
import java.io.BufferedWriter
import java.io.File
import java.io.FileWriter
import java.io.IOException
/**
*
*/
object Dns {
/**
* @throws IOException if the DNS resolve.conf file cannot be read
*/
fun setDNSServers(dnsServersString: String) {
if (Common.OS_LINUX) {
val dnsServers = dnsServersString.split(",");
val dnsFile = File("/etc/resolvconf/resolv.conf.d/head");
if (!dnsFile.canRead()) {
throw IOException("Unable to initialize dns server file. Something is SERIOUSLY wrong");
}
BufferedWriter(FileWriter(dnsFile)).use {
it.write("# File location: /etc/resolvconf/resolv.conf.d/head\n");
it.write("# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)\n");
dnsServers.forEach { dns ->
it.write("nameserver $dns\n");
}
it.flush();
}
Executor().command("resolvconf", "-u").startBlocking()
} else {
throw RuntimeException("NOT IMPL.")
}
}
}

@ -0,0 +1,275 @@
package dorkbox.netUtil
import dorkbox.netUtil.Common.logger
import java.net.*
/**
* A class that holds a number of network-related constants, also from:
* (Netty, apache 2.0 license)
* https://github.com/netty/netty/blob/4.1/common/src/main/java/io/netty/util/NetUtil.java
*
* This class borrowed some of its methods from a modified fork of the
* [Inet6Util class]
* (http://svn.apache.org/repos/asf/harmony/enhanced/java/branches/java6/classlib/modules/luni/src/main/java/org/apache/harmony/luni/util/Inet6Util.java) which was part of Apache Harmony.
*/
object IP {
/**
* The [InetAddress] that represents the loopback address. If IPv6 stack is available, it will refer to
* [.LOCALHOST6]. Otherwise, [.LOCALHOST4].
*/
val LOCALHOST: InetAddress
/**
* The loopback [NetworkInterface] of the current machine
*/
val LOOPBACK_IF: NetworkInterface
/**
* The loopback address
*/
const val LOOPBACK = "127.0.0.1"
init {
logger.debug {
"-Djava.net.preferIPv4Stack: ${IPv4.isPreferred}\n" +
"-Djava.net.preferIPv6Addresses: ${IPv6.isPreferred}"
}
// Retrieve the list of available network interfaces.
val netInterfaces = mutableListOf<NetworkInterface>()
try {
val interfaces = NetworkInterface.getNetworkInterfaces()
if (interfaces != null) {
while (interfaces.hasMoreElements()) {
val iface: NetworkInterface = interfaces.nextElement()
// Use the interface with proper INET addresses only.
if (SocketUtils.addressesFromNetworkInterface(iface).hasMoreElements()) {
netInterfaces.add(iface)
}
}
}
} catch (e: SocketException) {
logger.warn("Failed to retrieve the list of available network interfaces", e)
}
// Find the first loopback interface available from its INET address (127.0.0.1 or ::1)
// Note that we do not use NetworkInterface.isLoopback() in the first place because it takes long time
// on a certain environment. (e.g. Windows with -Djava.net.preferIPv4Stack=true)
var loopbackIface: NetworkInterface? = null
var loopbackAddr: InetAddress? = null
loop@ for (iface in netInterfaces) {
val i = SocketUtils.addressesFromNetworkInterface(iface)
while (i.hasMoreElements()) {
val addr: InetAddress = i.nextElement()
if (addr.isLoopbackAddress) {
// Found
loopbackIface = iface
loopbackAddr = addr
break@loop
}
}
}
// If failed to find the loopback interface from its INET address, fall back to isLoopback().
if (loopbackIface == null) {
try {
for (iface in netInterfaces) {
if (iface.isLoopback) {
val i = SocketUtils.addressesFromNetworkInterface(iface)
if (i.hasMoreElements()) {
// Found the one with INET address.
loopbackIface = iface
loopbackAddr = i.nextElement()
break
}
}
}
if (loopbackIface == null) {
logger.warn("Failed to find the loopback interface")
}
} catch (e: SocketException) {
logger.warn("Failed to find the loopback interface", e)
}
}
if (loopbackIface != null) {
// Found the loopback interface with an INET address.
logger.debug {
"Loopback interface: ${loopbackIface.name} (${loopbackIface.displayName}, ${loopbackAddr!!.hostAddress})"
}
} else {
// Could not find the loopback interface, but we can't leave LOCALHOST as null.
// Use LOCALHOST6 or LOCALHOST4, preferably the IPv6 one.
if (loopbackAddr == null) {
try {
if (NetworkInterface.getByInetAddress(IPv6.LOCALHOST) != null) {
logger.debug {
"Using hard-coded IPv6 localhost address: ${IPv6.LOCALHOST}"
}
loopbackAddr = IPv6.LOCALHOST
}
} catch (ignore: Exception) {
}
if (loopbackAddr == null) {
logger.debug {
"Using hard-coded IPv4 localhost address: ${IPv4.LOCALHOST}"
}
loopbackAddr = IPv4.LOCALHOST
}
}
}
LOOPBACK_IF = loopbackIface!!
LOCALHOST = loopbackAddr!!
}
/**
* Creates an byte[] based on an ipAddressString. No error handling is performed here.
*/
fun toBytes(ipAddressString: String): ByteArray {
if (IPv4.isValid(ipAddressString)) {
return IPv4.toBytes(ipAddressString)
}
return IPv6.toBytes(ipAddressString)
}
/**
* Converts 4-byte or 16-byte data into an IPv4 or IPv6 string respectively.
*
* @throws IllegalArgumentException
* if `length` is not `4` nor `16`
*/
fun toString(bytes: ByteArray, offset: Int = 0, length: Int = bytes.size): String {
return when (length) {
4 -> {
StringBuilder(15)
.append(bytes[offset].toInt())
.append('.')
.append(bytes[offset + 1].toInt())
.append('.')
.append(bytes[offset + 2].toInt())
.append('.')
.append(bytes[offset + 3].toInt()).toString()
}
16 -> IPv6.toString(bytes, offset)
else -> throw IllegalArgumentException("length: $length (expected: 4 or 16)")
}
}
/**
* Returns the [String] representation of an [InetAddress].
*
* * Inet4Address results are identical to [InetAddress.getHostAddress]
* * Inet6Address results adhere to
* [rfc 5952 section 4](http://tools.ietf.org/html/rfc5952#section-4) if
* `ipv4Mapped` is false. If `ipv4Mapped` is true then "IPv4 mapped" format
* from [rfc 4291 section 2](http://tools.ietf.org/html/rfc4291#section-2.5.5) will be supported.
* The compressed result will always obey the compression rules defined in
* [rfc 5952 section 4](http://tools.ietf.org/html/rfc5952#section-4)
*
*
*
* The output does not include Scope ID.
*
* @param ip [InetAddress] to be converted to an address string
* @param ipv4Mapped
*
* * `true` to stray from strict rfc 5952 and support the "IPv4 mapped" format
* defined in [rfc 4291 section 2](http://tools.ietf.org/html/rfc4291#section-2.5.5) while still
* following the updated guidelines in
* [rfc 5952 section 4](http://tools.ietf.org/html/rfc5952#section-4)
*
* * `false` to strictly follow rfc 5952
*
* @return `String` containing the text-formatted IP address
*/
fun toString(ip: InetAddress, ipv4Mapped: Boolean = false): String {
if (ip is Inet4Address) {
return ip.getHostAddress()
}
require(ip is Inet6Address) { "Unhandled type: $ip" }
return IPv6.toString(ip, ipv4Mapped)
}
/**
* Returns the [String] representation of an [InetSocketAddress].
*
*
* The output does not include Scope ID.
* @param addr [InetSocketAddress] to be converted to an address string
* @return `String` containing the text-formatted IP address
*/
fun toString(addr: InetSocketAddress): String {
val port = addr.port.toString()
val sb: StringBuilder
sb = if (addr.isUnresolved) {
val hostname = getHostname(addr)
newSocketAddressStringBuilder(hostname, port, !IPv6.isValid(hostname))
} else {
val address = addr.address
val hostString = toString(address)
newSocketAddressStringBuilder(hostString, port, address is Inet4Address)
}
return sb.append(':').append(port).toString()
}
/**
* Returns the [String] representation of a host port combo.
*/
fun toString(host: String, port: Int): String {
val portStr = port.toString()
return newSocketAddressStringBuilder(host, portStr, !IPv6.isValid(host)).append(':').append(portStr).toString()
}
private fun newSocketAddressStringBuilder(host: String, port: String, ipv4: Boolean): StringBuilder {
val hostLen = host.length
if (ipv4) {
// Need to include enough space for hostString:port.
return StringBuilder(hostLen + 1 + port.length).append(host)
}
// Need to include enough space for [hostString]:port.
val stringBuilder = StringBuilder(hostLen + 3 + port.length)
return if (hostLen > 1 && host[0] == '[' && host[hostLen - 1] == ']') {
stringBuilder.append(host)
} else {
stringBuilder.append('[').append(host).append(']')
}
}
/**
* Returns the [InetAddress] representation of a [CharSequence] IP address.
*
* This method will treat all IPv4 type addresses as "IPv4 mapped" (see [.getByName])
*
* @param ip [CharSequence] IP address to be converted to a [InetAddress]
* @return [InetAddress] representation of the `ip` or `null` if not a valid IP address.
*/
fun getByName(ip: String): InetAddress? {
return if (IPv4.isValid(ip)) {
IPv4.getByName(ip)
} else {
IPv6.getByName(ip)
}
}
/**
* Returns [InetSocketAddress.getHostString] if Java >= 7,
* or [InetSocketAddress.getHostName] otherwise.
* @param addr The address
* @return the host string
*/
fun getHostname(addr: InetSocketAddress): String {
return addr.hostString
}
}

@ -0,0 +1,59 @@
package dorkbox.netUtil
import java.io.BufferedWriter
import java.io.File
import java.io.FileWriter
import java.io.IOException
import java.util.*
/**
*
*/
object IPRoute {
private val reservedTable = StringBuilder(2048)
private val tableNames: MutableMap<Int, String?> = HashMap(256)
/**
* @throws IOException if the policy routing tables are unable to initialize
*/
fun addRtTables(tableNames: Map<Int, String>) {
if (Common.OS_LINUX) {
for ((tableNumber, tableName) in tableNames) {
if (tableNumber == 0 || tableNumber == 253 || tableNumber == 254 || tableNumber == 255) {
Common.logger.error("Trying to add table with same number as reserved value. Skipping.")
continue
}
if (!IPRoute.tableNames.containsKey(tableNumber)) {
IPRoute.tableNames[tableNumber] = tableName
} else {