Flattened examples directory

examples/apps/terminal_video_chat/README.md

@@ -1,3 +0,0 @@
-## Encrypted P2P chat in the terminal.
-
-See: [https://github.com/zerotier/cathode](https://github.com/zerotier/cathode)

examples/bindings/cpp/README.md

@@ -1,5 +0,0 @@
-## libzt C++ examples
-***
-
- - [simple_client_server](simple_client_server): No-frills C++ client and server using libzt sockets
- - [cxproj_dll](cxproj_dll): Example of how to use libzt in DLL form in Visual Studio

examples/bindings/csharp/README.md

@@ -1,4 +0,0 @@
-## libzt C# examples
-***
-
- - [csproj_dll](csproj_dll): Example of how to use libzt in DLL form in Visual Studio

examples/bindings/java/ExampleApp.java

@@ -1,160 +0,0 @@
-/*
- * ZeroTier SDK - Network Virtualization Everywhere
- * Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- * --
- *
- * You can be released from the requirements of the license by purchasing
- * a commercial license. Buying such a license is mandatory as soon as you
- * develop commercial closed-source software that incorporates or links
- * directly against ZeroTier software without disclosing the source code
- * of your own application.
- */
-
-// Simple Java example for libzt using JNI
-
-import zerotier.ZeroTier;
-import java.net.*;
-import java.lang.Thread;
-
-public class ExampleApp {
-	
-    public native int loadsymbols();
-    public native void startOneService();
-    
-    // load libzt.dylib or libzt.so
-	static {
-        System.loadLibrary("zt");
-    }
-
-	public static void main(String[] args) {
-	
-        final ZeroTier libzt = new ZeroTier();
-                
-        new Thread(new Runnable() {
-            public void run() {
-                String path = "/Users/joseph/op/zt/libzt/ztjni";
-                long nwid = 0xa09acf0233ac70fdL;
-
-                // METHOD 1 (easy)
-                // Blocking call that waits for the core, userspace stack and IP assignment before unblocking
-                if (true)
-                {
-                    libzt.startjoin(path, nwid);
-                }
-
-                // METHOD 2
-                // Optionally-nonblocking call. You'll have to use the below process to determine when you 
-                // are allowed to stack making socket calls. The advantage of this method is that you can 
-                // get your nodeId before joining the network.
-                if (false) {
-                    libzt.start(path, true);
-                    // Wait for core service to start
-                    while(!libzt.core_running()) {
-                        try {
-                            Thread.sleep(1000);
-                        } 
-                        catch(InterruptedException ex) {
-                            Thread.currentThread().interrupt();
-                        }
-                    }
-                    System.out.println("core started");
-                    long nodeId = libzt.get_node_id();
-                    System.out.println("nodeId=" + Long.toHexString(nodeId));
-                    libzt.join(nwid);
-                    // Wait for userspace stack to start, we trigger this by joining a network
-                    while(!libzt.stack_running()) {
-                        try {
-                            Thread.sleep(1000);
-                        } 
-                        catch(InterruptedException ex) {
-                            Thread.currentThread().interrupt();
-                        }
-                    }
-                }
-
-                System.out.println("core and stack started, now ready for socket API calls");
-
-                int num_addresses = libzt.get_num_assigned_addresses(nwid);
-                System.out.println("number of assigned addresses for this node on this network = " + String.valueOf(num_addresses));
-                
-                // get IPv4 address
-                //InetAddress assigned = libzt.get_address(nwid, libzt.AF_INET6);
-                //System.out.println("assigned address = " + assigned.toString());
-
-                // get address at arbitrary (index < num_addresses)
-                //assigned = libzt.get_address_at_index(nwid, 0);
-                //System.out.println("assigned address = " + assigned.toString());
-
-                // get IPv6 address
-                //assigned = libzt.get_address(nwid, libzt.AF_INET6);
-                //System.out.println("assigned address = " + assigned.toString());
-
-                String homePath = libzt.get_path();
-                System.out.println("homePath=" + homePath);
-
-                while(!libzt.has_address(nwid)) {
-                    try {
-                        Thread.sleep(1000);
-                    } 
-                    catch(InterruptedException ex) {
-                        Thread.currentThread().interrupt();
-                    }
-                }
-
-
-                //InetAddress assigned = libzt.get_address(nwid);
-                //System.out.println("assigned address = " + assigned.toString());
-
-                int fd = 0, err = 0;
-                if ((fd = libzt.socket(libzt.AF_INET, libzt.SOCK_STREAM, 0)) < 0) {
-                    System.out.println("error creating socket");
-                    return;
-                }
-                System.out.println("Created socket");
-
-        while(true)
-        {
-            try { Thread.sleep(3000); } 
-            catch (InterruptedException e) { e.printStackTrace(); }
-        }
-
-        /*
-                InetSocketAddress remoteAddr = new InetSocketAddress("172.27.54.9", 3434);
-
-                if ((err = libzt.connect(fd, remoteAddr)) < 0) {
-                    System.out.println("error connecting");
-                    return;
-                }
-        */ 
-/*
-                InetSocketAddress localAddr = new InetSocketAddress("0.0.0.0", 3434);
-
-                if ((err = libzt.bind(fd, addr)) < 0) {
-                    System.out.println("error binding socket to virtual interface");
-                    return;
-                }  
-                */
-            }
-        }).start();
-         
-        while(true)
-        {
-        	try { Thread.sleep(3000); } 
-        	catch (InterruptedException e) { e.printStackTrace(); }
-        }
-    }
-}

examples/bindings/node/.gitignore

@@ -1,6 +0,0 @@
-node_modules/*
-darwin
-zto
-include
-libzt-build
-package-lock.json

examples/bindings/node/README.md

@@ -1,5 +0,0 @@
-# Setup
-- Make sure you build libzt first
-- `npm install`
-- `node test.js`
-- `npm run -- node-gyp rebuild` if you modify binding.cc or libzt

examples/bindings/node/auto-top.gypi

@@ -1,8 +0,0 @@
-# Automatically generated file. Edits will be lost.
-# Based on: autogypi.json
-
-{
-	"includes": [
-		"node_modules/nbind/src/nbind-common.gypi"
-	]
-}

examples/bindings/node/auto.gypi

@@ -1,11 +0,0 @@
-# Automatically generated file. Edits will be lost.
-# Based on: autogypi.json
-
-{
-	"include_dirs": [
-		"node_modules/nan"
-	],
-	"includes": [
-		"node_modules/nbind/src/nbind.gypi"
-	]
-}

examples/bindings/node/autogypi.json

@@ -1,6 +0,0 @@
-{
-	"dependencies": [
-		"nbind"
-	],
-	"includes": []
-}

examples/bindings/node/binding.cc

@@ -1,72 +0,0 @@
-#include <string>
-#include <iostream>
-
-#include "libzt.h"
-
-struct ZT {
-  static int running() {
-    return zts_running();
-  }
-
-  static void simpleStart(const char *path, const char *nwid) {
-    zts_startjoin(path, nwid);
-  }
-
-  static void stop() {
-    zts_stop();
-  }
-
-  static char* getDeviceId() {
-    char* id = new char [ZT_ID_LEN + 1];
-    zts_get_id(id);
-    return id;
-  }
-
-  static char* getIpV4Address(const char *nwid) {
-    char* addr_str = new char [INET_ADDRSTRLEN];
-    zts_get_ipv4_address(nwid, addr_str, INET_ADDRSTRLEN);
-    return addr_str;
-  }
-
-  static int socket() {åå
-    return zts_socket(AF_INET, SOCK_STREAM, 0);
-  }
-
-  static int bind(int sockfd, const char *addrStr, int port) {
-		struct sockaddr_in addr;
-
-    addr.sin_addr.s_addr = inet_addr(addrStr);
-    addr.sin_family = AF_INET;
-    addr.sin_port = htons( port );
-
-    return zts_bind(sockfd, (const struct sockaddr *)&addr, sizeof(addr));
-  }
-
-  static int listen(int sockfd) {
-    return zts_listen(sockfd, 1);
-  }
-
-  static int accept(int sockfd) {
-    struct sockaddr_in client;
-    int c = sizeof(struct sockaddr_in);
-
-    int accept_fd = zts_accept(sockfd, (struct sockaddr *)&client, (socklen_t*)&c);
-    return accept_fd;
-  }
-
-};
-
-
-#include "nbind/nbind.h"
-
-NBIND_CLASS(ZT) {
-  method(accept);
-  method(bind);
-  method(getDeviceId);
-  method(getIpV4Address);
-  method(running);
-  method(simpleStart);
-  method(socket);
-  method(stop);
-  method(listen);
-}

examples/bindings/node/binding.gyp

@@ -1,11 +0,0 @@
-{
-  "targets": [
-    {
-      "include_dirs": ["libzt/build/darwin", "libzt/include", "libzt/zto/include"],
-      "libraries": ["<!(pwd)/libzt/build/darwin/libzt.a"],
-      "includes": ["auto.gypi"],
-      "sources": ["binding.cc"]
-    }
-  ],
-  "includes": ["auto-top.gypi"]
-}

examples/bindings/node/httpServer.js

@@ -1,28 +0,0 @@
-var http = require('http')
-
-var zt = require('./libzt')
-
-var earth = '8056c2e21c000001'
-var listenPort = 8766
-
-zt.simpleStart('./tmp/' + earth, earth)
-var addr = zt.getIpV4Address(earth).split('/')[0]
-var socket = zt.socket()
-zt.bindPort(socket, addr, listenPort)
-// zt.listen(socket)
-
-console.log('socket fd', socket)
-console.log('ip a', addr)
-console.log(`http://${addr}:${listenPort}`)
-
-var server = http.createServer(function (request, response) {
-  response.writeHead(200, { 'Content-Type': 'text/plain' })
-  response.end('Hello World\n')
-})
-
-// attempt to listen to file descriptor.
-// doesn't work, but would be cool!
-server.listen({ fd: socket })
-
-// listen on localhost:8765. works
-// server.listen(8765)

examples/bindings/node/libzt.js

@@ -1,13 +0,0 @@
-var nbind = require('nbind')
-var ZT = nbind.init().lib.ZT
-
-module.exports = {
-  accept: ZT.accept,
-  bindPort: ZT.bind,
-  getDeviceId: ZT.getDeviceId,
-  getIpV4Address: ZT.getIpV4Address,
-  listen: ZT.listen,
-  running: ZT.running,
-  simpleStart: ZT.simpleStart,
-  socket: ZT.socket
-}

examples/bindings/node/package.json

@@ -1,35 +0,0 @@
-{
-    "name": "node-libzt",
-    "version": "0.0.1",
-    "description": "",
-    "main": "index.js",
-    "scripts": {
-        "test": "echo \"Error: no test specified\" && exit 1",
-        "autogypi": "autogypi",
-        "node-gyp": "node-gyp",
-        "format": "prettier-standard '*.js'",
-        "preinstall": "mkdir -p libzt; cd libzt; ln -sf ../../../include include; ln -sf ../../../zto zto; ln -sf ../../../build build",
-        "postinstall": "npm run -- node-gyp rebuild"
-    },
-    "lint-staged": {
-        "linters": {
-            "src/**/*.js": [
-                "prettier-standard",
-                "git add"
-            ]
-        }
-    },
-    "keywords": [],
-    "author": "",
-    "license": "MIT",
-    "devDependencies": {
-        "husky": "^0.14.3",
-        "lint-staged": "^4.0.3",
-        "node-gyp": "^3.6.2",
-        "prettier-standard": "^6.0.0"
-    },
-    "dependencies": {
-        "autogypi": "^0.2.2",
-        "nbind": "^0.3.13"
-    }
-}

examples/bindings/node/test.js

@@ -1,41 +0,0 @@
-var fs = require('fs')
-
-var zt = require('./libzt')
-
-var running = zt.running()
-console.log('running', running)
-
-var earth = '8056c2e21c000001'
-var listenPort = 1234
-
-zt.simpleStart('./tmp/' + earth, earth)
-
-var deviceId = zt.getDeviceId()
-console.log('device id', deviceId)
-
-var addr = zt.getIpV4Address(earth).split('/')[0]
-console.log('ip a', addr)
-
-var socket = zt.socket()
-console.log('socket', socket)
-
-var bindPort = zt.bindPort(socket, addr, listenPort)
-console.log('bind', bindPort)
-
-var listen = zt.listen(socket)
-console.log('listen', listen)
-
-console.log()
-console.log('ready')
-console.log(`run this in another terminal:\n\tnc ${addr} ${listenPort}`)
-console.log(`then type something`)
-console.log()
-
-var fd = zt.accept(socket)
-
-fd = fs.createReadStream(null, { fd: fd })
-fd.pipe(process.stdout)
-
-// Start reading from stdin so we don't exit.
-process.stdin.resume()
-// lib.ZT.stop()

examples/bindings/objective-c/libztExampleApp/libztExampleApp.xcodeproj/project.pbxproj

@@ -1,294 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 48;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		7CF6CAD01F997537002A1137 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = 7CF6CACF1F997537002A1137 /* main.m */; };
-		7CF6CAD81F997575002A1137 /* libzt.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 7CF6CAD71F997575002A1137 /* libzt.a */; };
-		7CF6CADB1F99762B002A1137 /* libztWrapper.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 7CF6CAD91F99762B002A1137 /* libztWrapper.cpp */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXCopyFilesBuildPhase section */
-		7CF6CACA1F997537002A1137 /* CopyFiles */ = {
-			isa = PBXCopyFilesBuildPhase;
-			buildActionMask = 2147483647;
-			dstPath = /usr/share/man/man1/;
-			dstSubfolderSpec = 0;
-			files = (
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-			runOnlyForDeploymentPostprocessing = 1;
-		};
-/* End PBXCopyFilesBuildPhase section */
-
-/* Begin PBXFileReference section */
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-		7CF6CAD71F997575002A1137 /* libzt.a */ = {isa = PBXFileReference; lastKnownFileType = archive.ar; name = libzt.a; path = ../../../../build/darwin/libzt.a; sourceTree = "<group>"; };
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-/* End PBXFrameworksBuildPhase section */
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-			name = Frameworks;
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-/* Begin PBXNativeTarget section */
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-			buildPhases = (
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-/* Begin PBXProject section */
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-			isa = PBXProject;
-			attributes = {
-				LastUpgradeCheck = 0900;
-				ORGANIZATIONNAME = "ZeroTier, Inc.";
-				TargetAttributes = {
-					7CF6CACB1F997537002A1137 = {
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-				GCC_NO_COMMON_BLOCKS = YES;
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-				GCC_PREPROCESSOR_DEFINITIONS = (
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-					"$(inherited)",
-				);
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
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-				MTL_ENABLE_DEBUG_INFO = YES;
-				ONLY_ACTIVE_ARCH = YES;
-				SDKROOT = macosx;
-			};
-			name = Debug;
-		};
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-			buildSettings = {
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-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_COMMA = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INFINITE_RECURSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
-				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
-				CLANG_WARN_STRICT_PROTOTYPES = YES;
-				CLANG_WARN_SUSPICIOUS_MOVE = YES;
-				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				CODE_SIGN_IDENTITY = "-";
-				COPY_PHASE_STRIP = NO;
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu11;
-				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				MACOSX_DEPLOYMENT_TARGET = 10.12;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = macosx;
-			};
-			name = Release;
-		};
-		7CF6CAD41F997537002A1137 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				CODE_SIGN_STYLE = Automatic;
-				LIBRARY_SEARCH_PATHS = ../../../../build/darwin;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				USER_HEADER_SEARCH_PATHS = ../../../../include;
-			};
-			name = Debug;
-		};
-		7CF6CAD51F997537002A1137 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				CODE_SIGN_STYLE = Automatic;
-				LIBRARY_SEARCH_PATHS = ../../../../build/darwin;
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				USER_HEADER_SEARCH_PATHS = ../../../../include;
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		7CF6CAC71F997537002A1137 /* Build configuration list for PBXProject "libztExampleApp" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				7CF6CAD11F997537002A1137 /* Debug */,
-				7CF6CAD21F997537002A1137 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		7CF6CAD31F997537002A1137 /* Build configuration list for PBXNativeTarget "libztExampleApp" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				7CF6CAD41F997537002A1137 /* Debug */,
-				7CF6CAD51F997537002A1137 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 7CF6CAC41F997537002A1137 /* Project object */;
-}

examples/bindings/objective-c/libztExampleApp/libztExampleApp/main.m

@@ -1,19 +0,0 @@
-//
-//  main.m
-//  libztExampleApp
-//
-//  Created by Joseph Henry on 10/19/17.
-//  Copyright © 2017 ZeroTier, Inc. All rights reserved.
-//
-
-#import <Foundation/Foundation.h>
-
-int main(int argc, const char * argv[]) {
-    @autoreleasepool {
-        // insert code here...
-        NSLog(@"Hello, World!");
-        zts_startjoin("libzt_config_path", "XXXXXXXXXXXXXXXX");
-        zts_socket(2, 1, 0);
-    }
-    return 0;
-}

examples/bindings/objective-c/libztExampleApp/libztWrapper.cpp

@@ -1,9 +0,0 @@
-//
-//  libztWrapper.cpp
-//  libztExampleApp
-//
-//  Created by Joseph Henry on 10/19/17.
-//  Copyright © 2017 ZeroTier, Inc. All rights reserved.
-//
-
-#include "libztWrapper.hpp"

examples/bindings/objective-c/libztExampleApp/libztWrapper.hpp

@@ -1,14 +0,0 @@
-//
-//  libztWrapper.hpp
-//  libztExampleApp
-//
-//  Created by Joseph Henry on 10/19/17.
-//  Copyright © 2017 ZeroTier, Inc. All rights reserved.
-//
-
-#ifndef libztWrapper_hpp
-#define libztWrapper_hpp
-
-#include <stdio.h>
-
-#endif /* libztWrapper_hpp */

examples/bindings/processing/README.md

@@ -1,6 +0,0 @@
-## Processing
-***
-
-See the [Java](../java) eample.
-
-*NOTE: Currently Processing requires that any JAR file contain only code compiled against JDK 1.6*

examples/bindings/python/README.md

@@ -1,4 +0,0 @@
-libzt wrapper and PyPI package
-***
-
-See [libzt/packages/pypi](../../../packages/pypi)

examples/bindings/swift/libztExampleApp/libztExampleApp.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Workspace
-   version = "1.0">
-   <FileRef
-      location = "self:libztExampleApp.xcodeproj">
-   </FileRef>
-</Workspace>

examples/bindings/swift/libztExampleApp/libztExampleApp.xcodeproj/xcuserdata/joseph.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>SchemeUserState</key>
-	<dict>
-		<key>libztExampleApp.xcscheme</key>
-		<dict>
-			<key>orderHint</key>
-			<integer>0</integer>
-		</dict>
-	</dict>
-</dict>
-</plist>

examples/cpp/dummy.cpp

@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include <unistd.h>
+
+#include "libzt.h"
+
+int main()
+{
+	printf("Starting ZT service");
+	zts_startjoin("my_config_path",0x0000000000000000);
+
+	printf("Dummy. Going into infinite loop. Ping me or something\n");
+	while(1) {
+		sleep(1);
+	}
+}

examples/cpp/ipv4simple/ipv4client_udp.cpp

@@ -0,0 +1,109 @@
+/*
+ * ZeroTier SDK - Network Virtualization Everywhere
+ * Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <string>
+#include <inttypes.h>
+#include <unistd.h>
+
+#if defined(_WIN32)
+#include <WinSock2.h>
+#include <stdint.h>
+#else
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#endif
+
+#include "libzt.h"
+
+char *msg = (char*)"welcome to the machine";
+
+int main(int argc, char **argv)
+{
+	if (argc != 5) {
+		printf("\nlibzt example client\n");
+		printf("client [config_file_path] [nwid] [remote_addr] [remote_port]\n");
+		exit(0);
+	}
+	std::string path        = argv[1];
+	std::string nwidstr     = argv[2];
+	std::string remote_addr = argv[3];
+	int remote_port         = atoi(argv[4]);
+	int r=0, w=0, err=0, sockfd;
+	char rbuf[32];
+	memset(rbuf, 0, sizeof rbuf);
+
+	struct sockaddr_in in4;
+	in4.sin_port = htons(remote_port);
+	in4.sin_addr.s_addr = INADDR_ANY;
+	in4.sin_family = AF_INET;
+
+	struct sockaddr_in remote4;
+	remote4.sin_port = htons(remote_port);
+	remote4.sin_addr.s_addr = inet_addr(remote_addr.c_str());
+	remote4.sin_family = AF_INET;
+
+	// --- BEGIN EXAMPLE CODE
+
+	DEBUG_TEST("Waiting for libzt to come online...\n");
+	uint64_t nwid = strtoull(nwidstr.c_str(),NULL,16);
+	printf("nwid=%llx\n", (unsigned long long)nwid);
+	zts_startjoin(path.c_str(), nwid);
+	uint64_t nodeId = zts_get_node_id();
+	DEBUG_TEST("I am %llx", (unsigned long long)nodeId);
+
+	if ((sockfd = zts_socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+		DEBUG_ERROR("error creating ZeroTier socket");
+	}
+
+	if ((err = zts_bind(sockfd, (struct sockaddr *)&in4, sizeof(struct sockaddr_in)) < 0)) {
+		DEBUG_ERROR("error binding to interface (%d)", err);
+	}
+	int flags = 0;
+	int len = strlen(msg);
+
+	while(true) {
+		sleep(1);
+		if ((err = zts_sendto(sockfd, msg, len, flags, (const struct sockaddr *)&remote4, sizeof(remote4))) < 0) {
+			DEBUG_ERROR("error sending message to remote host (%d)", err);
+		}
+		DEBUG_TEST("sent=%d", err);
+	}
+	/*
+	DEBUG_TEST("reading from server...");
+	r = zts_read(sockfd, rbuf, strlen(msg));
+
+	DEBUG_TEST("Sent     : %s", msg);
+	DEBUG_TEST("Received : %s", rbuf);
+	*/
+	err = zts_close(sockfd);
+
+	return err;
+}

examples/cpp/ipv4simple/ipv4server_udp.cpp

@@ -0,0 +1,107 @@
+/*
+ * ZeroTier SDK - Network Virtualization Everywhere
+ * Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <string>
+#include <inttypes.h>
+
+#if defined(_WIN32)
+#include <WinSock2.h>
+#include <stdint.h>
+#else
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#endif
+#include "libzt.h"
+
+int main(int argc, char **argv)
+{
+	if (argc != 4) {
+		printf("\nlibzt example server\n");
+		printf("server [config_file_path] [nwid] [bind_port]\n");
+		exit(0);
+	}
+	std::string path      = argv[1];
+	std::string nwidstr   = argv[2];
+	int bind_port         = atoi(argv[3]);
+	int w=0, r=0, err=0, sockfd, accfd, flags = 0;
+	char rbuf[32];
+	memset(rbuf, 0, sizeof rbuf);
+
+	struct sockaddr_in in4, acc_in4;
+	in4.sin_port = htons(bind_port);
+	in4.sin_addr.s_addr = INADDR_ANY;
+	in4.sin_family = AF_INET;
+
+	// --- BEGIN EXAMPLE CODE
+
+	DEBUG_TEST("Waiting for libzt to come online...\n");
+	uint64_t nwid = strtoull(nwidstr.c_str(),NULL,16);
+	printf("nwid=%llx\n", (unsigned long long)nwid);
+	zts_startjoin(path.c_str(), nwid);
+	uint64_t nodeId = zts_get_node_id();
+	DEBUG_TEST("I am %llx", (unsigned long long)nodeId);
+
+	if ((sockfd = zts_socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
+		DEBUG_ERROR("error creating ZeroTier socket");
+	}
+	if ((err = zts_bind(sockfd, (struct sockaddr *)&in4, sizeof(struct sockaddr_in)) < 0)) {
+		DEBUG_ERROR("error binding to interface (%d)", err);
+	}
+	
+/*
+	socklen_t peer_addrlen = sizeof(struct sockaddr_storage);
+	zts_getpeername(accfd, (struct sockaddr*)&acc_in4, &peer_addrlen);
+	DEBUG_INFO("accepted connection from %s : %d", inet_ntoa(acc_in4.sin_addr), ntohs(acc_in4.sin_port));
+*/
+
+	DEBUG_TEST("reading from client...");
+	socklen_t addrlen = sizeof(acc_in4);
+	memset(&acc_in4, 0, sizeof acc_in4);
+
+	while(true) {
+		memset(&rbuf, 0, sizeof rbuf);
+		r = zts_recvfrom(accfd, rbuf, sizeof(rbuf), flags, (struct sockaddr *)&acc_in4, &addrlen);
+		if (r >= 0) {
+			char *ip = inet_ntoa(acc_in4.sin_addr);
+			DEBUG_TEST("Received : r=%d, %s -- from: %s : %d", r, rbuf, ip, ntohs(acc_in4.sin_port));
+		}
+	}
+
+/*
+	DEBUG_TEST("sending to client...");
+	w = zts_write(accfd, rbuf, strlen(rbuf));
+
+*/
+
+	err = zts_close(sockfd);
+
+	return err;
+}

examples/java/ExampleApp.java

@@ -0,0 +1,246 @@
+/*
+ * ZeroTier SDK - Network Virtualization Everywhere
+ * Copyright (C) 2011-2018  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
+ */
+
+// Simple Java example for libzt using JNI
+
+import zerotier.*;
+import java.net.*;
+import java.lang.Thread;
+
+public class ExampleApp {
+	
+	public native int loadsymbols();
+	public native void startOneService();
+
+	static { System.loadLibrary("zt"); } // load libzt.dylib or libzt.so
+
+	static void sleep(int ms)
+	{
+		try { Thread.sleep(ms); } 
+		catch (InterruptedException e) { e.printStackTrace(); }
+	}
+
+	public static void main(String[] args) 
+	{
+	
+		final ZeroTier libzt = new ZeroTier();
+
+		new Thread(new Runnable() 
+		{
+			public void run() 
+			{
+				String path = "/Users/joseph/op/zt/libzt/ztjni"; // Where node's config files are stored
+				long nwid = 0xf0b9acf0833f4b071L;
+
+				// Test modes				
+				boolean blocking_start_call = true;
+				boolean client_mode = false; 
+				boolean tcp = false;
+				boolean loop = true; // RX/TX multiple times
+				boolean idle = false; // Idle loop after node comes online. For testing reachability
+
+				int fd = -1, client_fd = -1, err, r, w, lengthToRead = 0, flags = 0;
+				byte[] rxBuffer;
+				byte[] txBuffer = "welcome to the machine".getBytes();
+				String remoteAddrStr = "11.7.7.107";
+				String localAddrStr = "0.0.0.0";
+				int portNo = 4040;
+
+				ZTSocketAddress remoteAddr, localAddr;
+				ZTSocketAddress sockname = new ZTSocketAddress();
+				ZTSocketAddress addr = new ZTSocketAddress();
+
+				// METHOD 1 (easy)
+				// Blocking call that waits for all components of the service to start
+				System.out.println("Starting ZT service...");
+				if (blocking_start_call) {
+					libzt.startjoin(path, nwid);
+				}
+				// METHOD 2
+				// Optional. Non-blocking call to start service. You'll have to use the below process to determine
+				// when you are allowed to start making socket calls.
+				if (!blocking_start_call) {
+					libzt.start(path, true);
+					while(!libzt.ready()) {
+						try { // Wait for core service to start
+							Thread.sleep(250);
+						} 
+						catch(InterruptedException ex) {
+							Thread.currentThread().interrupt();
+						}
+					}
+					System.out.println("Core started. Networks can be joined after this point");
+					libzt.join(nwid);
+					// Wait for userspace stack to start, we trigger this by joining a network
+					while(!libzt.stack_running()) {
+						try {
+							Thread.sleep(1000);
+						} 
+						catch(InterruptedException ex) {
+							Thread.currentThread().interrupt();
+						}
+					}
+				}
+				System.out.println("ZT service ready.");
+								
+				// Device/Node address info
+				System.out.println("path=" + libzt.get_path());
+				System.out.println("nodeId=" + Long.toHexString(libzt.get_node_id()));
+				int numAddresses = libzt.get_num_assigned_addresses(nwid);
+				System.out.println("this node has (" + numAddresses + ") assigned addresses on network " + Long.toHexString(nwid));
+				for (int i=0; i<numAddresses; i++) {
+					libzt.get_address_at_index(nwid, i, sockname);
+					//System.out.println("address[" + i + "] = " + sockname.toString()); // ip:port
+					System.out.println("address[" + i + "] = " + sockname.toCIDR());
+
+				}
+
+				// Idle loop test
+				while(idle) { try { Thread.sleep(3000); } catch (InterruptedException e) { e.printStackTrace(); } }
+
+				// TCP
+				if (tcp) {
+					System.out.println("mode:tcp");
+					if ((fd = libzt.socket(libzt.AF_INET, libzt.SOCK_STREAM, 0)) < 0) {
+						System.out.println("error creating socket");
+						return; 
+					}
+					// CLIENT
+					if (client_mode) {
+						System.out.println("mode:client");
+						remoteAddr = new ZTSocketAddress(remoteAddrStr, portNo);
+						if ((err = libzt.connect(fd, remoteAddr)) < 0) {
+							System.out.println("error connecting (err=" + err + ")");
+							return;
+						}
+						String echo_msg = "echo!";
+						w = libzt.write(fd, echo_msg.getBytes(), echo_msg.length());
+						rxBuffer = new byte[100];
+						lengthToRead = 100;
+						System.out.println("reading bytes...");
+						r = libzt.read(fd, rxBuffer, lengthToRead);
+						System.out.println("r="+r);
+						System.out.println("string="+new String(rxBuffer));
+					}
+					
+					// SERVER
+					if (!client_mode) {
+						System.out.println("mode:server");
+						localAddr = new ZTSocketAddress(localAddrStr, portNo);
+
+						if ((err = libzt.bind(fd, localAddr)) < 0) {
+							System.out.println("error binding socket to virtual interface");
+							return;
+						} if ((err = libzt.listen(fd, 1)) < 0) {
+							System.out.println("error putting socket into listening state");
+							return;
+						}
+						remoteAddr = new ZTSocketAddress(localAddrStr, 0);
+						client_fd = -1;
+						if ((client_fd = libzt.accept(fd, remoteAddr)) < 0) {
+							System.out.println("error accepting incoming connection (err=" + client_fd + ")");
+							return;
+						}  
+						System.out.println("accepted connection (client_fd=" + client_fd + ")");
+						rxBuffer = new byte[100];
+						lengthToRead = 100;
+						System.out.println("reading bytes...");
+						r = libzt.read(client_fd, rxBuffer, lengthToRead);
+						System.out.println("r="+r);
+						System.out.println("string="+new String(rxBuffer));
+						System.out.println("writing bytes...");
+						String echo_msg = "echo!";
+						w = libzt.write(client_fd, echo_msg.getBytes(), echo_msg.length());
+						System.out.println("wrote (" + w + ") bytes");
+					}
+				}
+
+				// UDP
+				if (!tcp) {
+					System.out.println("mode:udp");
+					if ((fd = libzt.socket(libzt.AF_INET, libzt.SOCK_DGRAM, 0)) < 0) {
+						System.out.println("error creating socket");
+						return; 
+					}
+					// CLIENT
+					if (client_mode) {
+						System.out.println("mode:client");
+						localAddr = new ZTSocketAddress(localAddrStr, portNo);
+						if ((err = libzt.bind(fd, localAddr)) < 0) {
+							System.out.println("error binding socket to virtual interface");
+							return;
+						}
+						remoteAddr = new ZTSocketAddress(remoteAddrStr, portNo);
+						System.out.println("sending message to: " + remoteAddr.toString());
+						if (loop) {
+							while (true) {
+								sleep(500);
+								if ((w = libzt.sendto(fd, txBuffer, txBuffer.length, flags, remoteAddr)) < 0) {
+									System.out.println("error sending bytes");
+								} else {
+									System.out.println("sendto()=" + w);
+								}
+							}
+						} else {
+							if ((w = libzt.sendto(fd, txBuffer, txBuffer.length, flags, remoteAddr)) < 0) {
+								System.out.println("error sending bytes");
+							} else {
+								System.out.println("sendto()=" + w);
+							}
+						}
+					}
+					// SERVER
+					if (!client_mode) {
+						System.out.println("mode:server");
+						localAddr = new ZTSocketAddress(localAddrStr, portNo);
+						System.out.println("binding to " + localAddr.toString());
+						if ((err = libzt.bind(fd, localAddr)) < 0) {
+							System.out.println("error binding socket to virtual interface");
+							return;
+						}
+
+						rxBuffer = new byte[100];
+						remoteAddr = new ZTSocketAddress("-1.-1.-1.-1", 0);
+						while(true) {
+							addr = new ZTSocketAddress();
+							r = libzt.recvfrom(fd, rxBuffer, rxBuffer.length, flags, remoteAddr);
+							System.out.println("read (" + r + ") bytes from " + remoteAddr.toString() + ", buffer = " + new String(rxBuffer));
+						}
+					}
+				}
+
+				libzt.close(client_fd);
+				libzt.close(fd);
+			}
+		}).start();
+		 
+		while(true)
+		{
+			try { Thread.sleep(3000); } 
+			catch (InterruptedException e) { e.printStackTrace(); }
+		}
+	}
+}

examples/java/Makefile

@@ -15,7 +15,7 @@ example_java_app_1.6:
 	javac -source 1.6 -bootclasspath /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.41.x86_64/jre/lib/rt.jar -target 1.6 *.java
 
 copy_dynamic_lib:
-	cp ../../../bin/lib/$(SHARED_LIB) .
+	cp ../../bin/lib/$(SHARED_LIB) .
 
 jar:
 	jar cf libzt.jar libzt.dylib zerotier/ZeroTier.class

examples/java/zerotier/ZTFD.java

@@ -1,6 +1,6 @@
 /*
  * ZeroTier SDK - Network Virtualization Everywhere
- * Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
+ * Copyright (C) 2011-2018  ZeroTier, Inc.  https://www.zerotier.com/
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -24,33 +24,9 @@
  * of your own application.
  */
 
-#include "libzt.h"
+package zerotier;
 
-#include <unistd.h>
+public class fd_set
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <strings.h>
-#include <string.h>
-
-#include <stdio.h>
-#include <dlfcn.h>
-
-int (*realsocket)(ZT_SOCKET_SIG) = 0;
-
-extern void load_symbols()
 {
-    DEBUG_INFO();
+	byte[] fds_bits[1024 / 8];
-    realsocket = (int(*)(ZT_SOCKET_SIG))dlsym(RTLD_NEXT, "socket");
-}
-
-int socket(ZT_SOCKET_SIG)
-{   
-	DEBUG_INFO();
-	return zts_socket(socket_family, socket_type, protocol);
-}
-
-int main()
-{
-	return 0;
 }

examples/java/zerotier/ZTSocketAddress.java

@@ -0,0 +1,93 @@
+/*
+ * ZeroTier SDK - Network Virtualization Everywhere
+ * Copyright (C) 2011-2018  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
+ */
+
+package zerotier;
+
+import java.net.*;
+
+// Designed to transport address information across the JNI boundary
+public class ZTSocketAddress
+{
+	public byte[] _ip6 = new byte[16];
+	public byte[] _ip4 = new byte[4];
+
+	public long _ipdata;
+	public long _ipdata_ext;
+
+	public int _family;
+	public int _port; // Also reused for netmask or prefix
+
+	public ZTSocketAddress() {}
+
+	public ZTSocketAddress(String ipStr, int port)
+	{
+		if(ipStr.contains(":")) {
+			_family = zerotier.ZeroTier.AF_INET6;
+			try {
+				InetAddress ip = InetAddress.getByName(ipStr);
+				_ip6 = ip.getAddress();
+			}
+			catch (Exception e) { }
+		}
+		else if(ipStr.contains(".")) {
+			_family = zerotier.ZeroTier.AF_INET;
+			try {
+				InetAddress ip = InetAddress.getByName(ipStr);
+				_ip4 = ip.getAddress();
+			}
+			catch (Exception e) { }		
+		}
+		_port = port;
+	}
+
+	public int getPort() { return _port; }
+	public int getNetmask() { return _port; }
+	public int getPrefix() { return _port; }
+
+	private String ipString()
+	{
+		if (_family == zerotier.ZeroTier.AF_INET) {
+			try {
+				InetAddress inet = InetAddress.getByAddress(_ip4);
+				return "" + inet.getHostAddress();
+			} catch (Exception e) {
+				System.out.println(e);
+			}
+		}
+		if (_family == zerotier.ZeroTier.AF_INET6) {
+			try {
+				InetAddress inet = InetAddress.getByAddress(_ip6);
+				return "" + inet.getHostAddress();
+			} catch (Exception e) {
+				System.out.println(e);
+			}
+		}
+		return "";
+	}
+
+	public String toString() { return ipString() + ":" + _port; }
+	public String toCIDR() { return ipString() + "/" + _port; }
+}

examples/java/zerotier/ZeroTier.java

@@ -1,6 +1,6 @@
 /*
  * ZeroTier SDK - Network Virtualization Everywhere
- * Copyright (C) 2011-2017  ZeroTier, Inc.  https://www.zerotier.com/
+ * Copyright (C) 2011-2018  ZeroTier, Inc.  https://www.zerotier.com/
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -29,22 +29,19 @@ package zerotier;
 import java.net.*;
 
 public class ZeroTier {
-    // socket families
+
     public static int AF_INET = 2;
     public static int AF_INET6 = 30;
-    // socket types
     public static int SOCK_STREAM = 1;
     public static int SOCK_DGRAM = 2;
-    // fcntl flags
     public static int O_APPEND = 1024;
     public static int O_NONBLOCK = 2048;
     public static int O_ASYNC = 8192;
     public static int O_DIRECT = 65536;
     public static int O_NOATIME = 262144;
-    // fcntl cmds
     public static int F_GETFL = 3;
     public static int F_SETFL = 4;
-    // service controls
+
     public native void start(String homePath, boolean blocking);
     public native void startjoin(String homePath, long nwid);
     public native void stop();
@@ -56,37 +53,29 @@ public class ZeroTier {
     public native String get_path();
     public native long get_node_id();
     public native int get_num_assigned_addresses(long nwid);
-    public native InetAddress get_address_at_index(long nwid, int index);
+    public native boolean get_address_at_index(long nwid, int index, ZTSocketAddress addr);
     public native boolean has_address(long nwid);
-    public native InetAddress get_address(long nwid, int address_family);
+    public native boolean get_address(long nwid, int address_family, ZTSocketAddress addr);
     public native void get_6plane_addr();
     public native void get_rfc4193_addr();
-    // socket API
+
     public native int socket(int family, int type, int protocol);
-    public native int connect(int fd, InetSocketAddress addr);
+    public native int connect(int fd, ZTSocketAddress addr);
-    public native int bind(int fd, InetSocketAddress addr);
+    public native int bind(int fd, ZTSocketAddress addr);
     public native int listen(int fd, int backlog);
-    public native int accept(int fd, InetSocketAddress addr);
+    public native int accept(int fd, ZTSocketAddress addr);
     public native int accept4(int fd, String addr, int port);
     public native int close(int fd);
-    //public native int setsockopt();
+    public native int setsockopt(int fd, int level, int optname, int optval, int optlen);
-    //public native int getsockopt();
+    public native int getsockopt(int fd, int level, int optname, int optval, int optlen);
-    public native int sendto(int fd, byte[] buf, int len, int flags, InetSocketAddress addr);
+    public native int sendto(int fd, byte[] buf, int len, int flags, ZTSocketAddress addr);
     public native int send(int fd, byte[] buf, int len, int flags);
-    public native int recvfrom(int fd, byte[] buf, int len, int flags, InetSocketAddress addr);
+    public native int recv(int fd, byte[] buf, int len, int flags);
+    public native int recvfrom(int fd, byte[] buf, int len, int flags, ZTSocketAddress addr);
     public native int read(int fd, byte[] buf, int len);
     public native int write(int fd, byte[] buf, int len);
     public native int shutdown(int fd, int how);
-    //public native int getsockname();
+    public native boolean getsockname(int fd, ZTSocketAddress addr);
-    //public native int getpeername();
+    public native int getpeername(int fd, ZTSocketAddress addr);
-    //public native int gethostname();
-    ///public native int sethostname();
-    //public native int gethostbyname();
-    //public native int poll();
-    //public native int select();
     public native int fcntl(int sock, int cmd, int flag);
-    //public native int ioctl(int fd, long request, ? );
-    // stack controls
-    public native int add_dns();
-    public native int del_dns();
 }

examples/layer2/layer2.cpp

@@ -0,0 +1,194 @@
+// This file is built with libzt.a via `make tests`
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+
+#if defined(__APPLE__)
+#include <net/ethernet.h>
+#endif
+#if defined(__linux__)
+#include <netinet/ether.h>
+#include <sys/socket.h>
+#include <linux/if_packet.h>
+#include <net/ethernet.h>
+#endif
+
+#include "libzt.h"
+
+unsigned short csum(unsigned short *buf, int nwords)
+{
+	unsigned long sum;
+	for(sum=0; nwords>0; nwords--)
+		sum += *buf++;
+	sum = (sum >> 16) + (sum &0xffff);
+	sum += (sum >> 16);
+	return (unsigned short)(~sum);
+}
+
+int main(int argc , char *argv[])
+{
+	if (argc < 3) {
+		fprintf(stderr, "usage: layer2 <zt_home_dir> <nwid>\n");
+		return 1;
+	}
+
+	// initialize library
+	printf("Starting libzt...\n");
+	zts_startjoin(argv[1], strtoull(argv[2], NULL, 16));
+	uint64_t device_id = zts_get_node_id();
+	fprintf(stderr, "Complete. I am %llx\n", device_id);
+
+	// create socket
+	int fd;
+	if ((fd = zts_socket(AF_INET, SOCK_RAW, IPPROTO_UDP)) < 0) {
+		printf("There was a problem creating the raw socket\n");
+		exit(-1);
+	}
+	fprintf(stderr, "Created raw socket (%d)\n", fd);
+
+#if defined(__APPLE__)
+	fprintf(stderr, "SOCK_RAW not supported on mac builds yet. exiting");
+	exit(0);
+#endif
+#if defined(__linux__) // The rest of this file isn't yet supported on non-linux platforms
+	// get interface index to bind on
+	struct ifreq if_idx;
+	memset(&if_idx, 0, sizeof(struct ifreq));
+	strncpy(if_idx.ifr_name, "libzt0", IFNAMSIZ-1);
+	if (zts_ioctl(fd, SIOCGIFINDEX, &if_idx) < 0) {
+		perror("SIOCGIFINDEX");
+		exit(-1);
+	}
+	fprintf(stderr, "if_idx.ifr_ifindex=%d\n", if_idx.ifr_ifindex);
+
+	// get MAC address of interface to send on
+	struct ifreq if_mac;
+	memset(&if_mac, 0, sizeof(struct ifreq));
+	strncpy(if_mac.ifr_name, "libzt0", IFNAMSIZ-1);
+	if (zts_ioctl(fd, SIOCGIFHWADDR, &if_mac) < 0) {
+		perror("SIOCGIFHWADDR");
+		exit(-1);
+	}
+	const unsigned char* mac=(unsigned char*)if_mac.ifr_hwaddr.sa_data;
+	fprintf(stderr, "hwaddr=%02X:%02X:%02X:%02X:%02X:%02X\n", mac[0],mac[1],mac[2],mac[3],mac[4],mac[5]);
+
+	// get IP address of interface to send on
+	struct ifreq if_ip;
+	memset(&if_ip, 0, sizeof(struct ifreq));
+	strncpy(if_ip.ifr_name, "libzt0", IFNAMSIZ-1);
+	if (zts_ioctl(fd, SIOCGIFADDR, &if_ip) < 0) {
+		perror("SIOCGIFADDR");
+		exit(-1);
+	}
+	char ipv4_str[INET_ADDRSTRLEN];
+	struct sockaddr_in *in4 = (struct sockaddr_in *)&if_ip.ifr_addr;
+	inet_ntop(AF_INET, (const void *)&in4->sin_addr.s_addr, ipv4_str, INET_ADDRSTRLEN);
+	fprintf(stderr, "addr=%s", ipv4_str);
+
+	// construct ethernet header
+	int tx_len = 0;
+	char sendbuf[1024];
+	struct ether_header *eh = (struct ether_header *) sendbuf;
+	memset(sendbuf, 0, 1024);
+	
+	// Ethernet header
+	eh->ether_shost[0] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[0];
+	eh->ether_shost[1] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[1];
+	eh->ether_shost[2] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[2];
+	eh->ether_shost[3] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[3];
+	eh->ether_shost[4] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[4];
+	eh->ether_shost[5] = ((uint8_t *)&if_mac.ifr_hwaddr.sa_data)[5];
+
+	// set destination MAC
+	int MY_DEST_MAC0 = 0x72;
+	int MY_DEST_MAC1 = 0x92;
+	int MY_DEST_MAC2 = 0xd4;
+	int MY_DEST_MAC3 = 0xfd;
+	int MY_DEST_MAC4 = 0x43;
+	int MY_DEST_MAC5 = 0x45;
+
+	eh->ether_dhost[0] = MY_DEST_MAC0;
+	eh->ether_dhost[1] = MY_DEST_MAC1;
+	eh->ether_dhost[2] = MY_DEST_MAC2;
+	eh->ether_dhost[3] = MY_DEST_MAC3;
+	eh->ether_dhost[4] = MY_DEST_MAC4;
+	eh->ether_dhost[5] = MY_DEST_MAC5;
+	eh->ether_type = htons(ETH_P_IP);
+	tx_len += sizeof(struct ether_header);
+
+
+	// Construct the IP header
+	int ttl = 64;
+	struct iphdr *iph = (struct iphdr *) (sendbuf + sizeof(struct ether_header));
+	iph->ihl = 5;
+	iph->version = 4;
+	iph->tos = 16; // Low delay
+	iph->id = htons(54321);
+	iph->ttl = ttl; // hops
+	iph->protocol = 17; // UDP
+	// Source IP address, can be spoofed
+	iph->saddr = inet_addr(inet_ntoa(((struct sockaddr_in *)&if_ip.ifr_addr)->sin_addr));
+	// iph->saddr = inet_addr("192.168.0.112");
+	// Destination IP address
+	iph->daddr = inet_addr("10.7.7.1");
+	tx_len += sizeof(struct iphdr);
+
+	// Construct UDP header
+	struct udphdr *udph = (struct udphdr *) (sendbuf + sizeof(struct iphdr) + sizeof(struct ether_header));
+	udph->source = htons(3423);
+	udph->dest = htons(5342);
+	udph->check = 0; // skip
+	tx_len += sizeof(struct udphdr);
+
+	// Fill in UDP payload
+	sendbuf[tx_len++] = 0xde;
+	sendbuf[tx_len++] = 0xad;
+	sendbuf[tx_len++] = 0xbe;
+	sendbuf[tx_len++] = 0xef;
+
+	// Fill in remaining header info
+	// Length of UDP payload and header
+	udph->len = htons(tx_len - sizeof(struct ether_header) - sizeof(struct iphdr));
+	// Length of IP payload and header
+	iph->tot_len = htons(tx_len - sizeof(struct ether_header));
+	// Calculate IP checksum on completed header
+	iph->check = csum((unsigned short *)(sendbuf+sizeof(struct ether_header)), sizeof(struct iphdr)/2);
+
+	// Send packet
+	// Destination address
+	struct sockaddr_ll socket_address;
+	// Index of the network device
+	socket_address.sll_ifindex = if_idx.ifr_ifindex;
+	// Address length
+	socket_address.sll_halen = ETH_ALEN;
+	// Destination MAC
+	socket_address.sll_addr[0] = MY_DEST_MAC0;
+	socket_address.sll_addr[1] = MY_DEST_MAC1;
+	socket_address.sll_addr[2] = MY_DEST_MAC2;
+	socket_address.sll_addr[3] = MY_DEST_MAC3;
+	socket_address.sll_addr[4] = MY_DEST_MAC4;
+	socket_address.sll_addr[5] = MY_DEST_MAC5;
+
+	while(1)
+	{
+		usleep(10000);
+		// Send packet
+		if (zts_sendto(fd, sendbuf, tx_len, 0, (struct sockaddr*)&socket_address, sizeof(struct sockaddr_ll)) < 0)
+			fprintf(stderr, "Send failed\n");
+	}
+
+	// dismantle all zt virtual taps
+	zts_stop();
+#endif
+	return 0;
+}