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https://github.com/ZeroTier/ZeroTierOne
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Testnet work... getting there!
This commit is contained in:
Adam Ierymenko
parent
0a195e7bc0
commit
4fbb098daa
11 changed files with 398 additions and 149 deletions
362
testnet.cpp
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362
testnet.cpp
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/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2011-2014 ZeroTier Networks LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string>
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#include <map>
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#include <vector>
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#include "node/Constants.hpp"
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#include "node/Node.hpp"
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#include "node/Utils.hpp"
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#include "node/Address.hpp"
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#include "node/Identity.hpp"
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#include "node/Thread.hpp"
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#include "node/CMWC4096.hpp"
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#include "testnet/SimNet.hpp"
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#include "testnet/SimNetSocketManager.hpp"
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#include "testnet/TestEthernetTap.hpp"
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#include "testnet/TestEthernetTapFactory.hpp"
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#include "testnet/TestRoutingTable.hpp"
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#ifdef __WINDOWS__
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#include <windows.h>
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#else
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#include <unistd.h>
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#include <sys/stat.h>
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#endif
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using namespace ZeroTier;
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class SimNode
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{
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public:
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SimNode(SimNet &net,const std::string &hp,const char *rootTopology,bool issn,const InetAddress &addr) :
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home(hp),
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tapFactory(),
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routingTable(),
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socketManager(net.newEndpoint(addr)),
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node(home.c_str(),&tapFactory,&routingTable,socketManager,false,rootTopology),
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reasonForTermination(Node::NODE_RUNNING),
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supernode(issn)
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{
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thread = Thread::start(this);
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}
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~SimNode()
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{
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node.terminate(Node::NODE_NORMAL_TERMINATION,"SimNode shutdown");
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Thread::join(thread);
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}
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void threadMain()
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throw()
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{
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reasonForTermination = node.run();
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}
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std::string home;
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TestEthernetTapFactory tapFactory;
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TestRoutingTable routingTable;
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SimNetSocketManager *socketManager;
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Node node;
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Node::ReasonForTermination reasonForTermination;
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bool supernode;
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Thread thread;
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};
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static std::string basePath;
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static SimNet net;
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static std::map< Address,SimNode * > nodes;
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static std::map< InetAddress,Address > usedIps;
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static CMWC4096 prng;
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static std::string rootTopology;
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// Converts an address into a fake IP not already claimed.
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// Be sure to call only once, as this claims the IP before returning it.
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static InetAddress inetAddressFromZeroTierAddress(const Address &addr)
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{
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uint32_t ip = (uint32_t)(addr.toInt() & 0xffffffff);
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for(;;) {
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if (((ip >> 24) & 0xff) >= 240) {
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ip &= 0x00ffffff;
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ip |= (((ip >> 24) & 0xff) % 240) << 24;
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}
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if (((ip >> 24) & 0xff) == 0)
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ip |= 0x01000000;
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if (((ip & 0xff) == 0)||((ip & 0xff) == 255))
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ip ^= 0x00000001;
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InetAddress inaddr(Utils::hton(ip),9993);
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if (usedIps.find(inaddr) == usedIps.end()) {
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usedIps[inaddr] = addr;
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return inaddr;
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}
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++ip; // keep looking sequentially for an unclaimed IP
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}
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}
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static Identity makeNodeHome(bool super)
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{
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Identity id;
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id.generate();
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std::string path(basePath + ZT_PATH_SEPARATOR_S + (super ? "S" : "N") + id.address().toString());
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#ifdef __WINDOWS__
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CreateDirectoryA(path.c_str(),NULL);
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#else
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mkdir(path.c_str(),0700);
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#endif
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if (!Utils::writeFile((path + ZT_PATH_SEPARATOR_S + "identity.secret"),id.toString(true)))
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return Identity();
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if (!Utils::writeFile((path + ZT_PATH_SEPARATOR_S + "identity.public"),id.toString(false)))
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return Identity();
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return id;
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}
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// Instantiates supernodes by scanning for S########## subdirectories
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static std::vector<Address> initSupernodes()
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{
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Dictionary supernodes;
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std::vector< std::pair<Identity,InetAddress> > snids;
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std::map<std::string,bool> dir(Utils::listDirectory(basePath.c_str()));
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for(std::map<std::string,bool>::iterator d(dir.begin());d!=dir.end();++d) {
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if ((d->first.length() == 11)&&(d->second)&&(d->first[0] == 'S')) {
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std::string idbuf;
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if (Utils::readFile((basePath + ZT_PATH_SEPARATOR_S + d->first + ZT_PATH_SEPARATOR_S + "identity.public").c_str(),idbuf)) {
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Identity id(idbuf);
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if (id) {
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InetAddress inaddr(inetAddressFromZeroTierAddress(id.address()));
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snids.push_back(std::pair<Identity,InetAddress>(id,inaddr));
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Dictionary snd;
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snd["id"] = id.toString(false);
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snd["udp"] = inaddr.toString();
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snd["desc"] = id.address().toString();
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snd["dns"] = inaddr.toIpString();
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supernodes[id.address().toString()] = snd.toString();
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}
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}
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}
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}
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Dictionary rtd;
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rtd["supernodes"] = supernodes.toString();
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rtd["noupdate"] = "1";
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rootTopology = rtd.toString();
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std::vector<Address> newNodes;
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for(std::vector< std::pair<Identity,InetAddress> >::iterator i(snids.begin());i!=snids.end();++i) {
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SimNode *n = new SimNode(net,(basePath + ZT_PATH_SEPARATOR_S + "S" + i->first.address().toString()),rootTopology.c_str(),true,i->second);
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nodes[id.address()] = n;
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newNodes.push_back(id.address());
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}
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return newNodes;
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}
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// Instantiates any not-already-instantiated regular nodes
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static std::vector<Address> scanForNewNodes()
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{
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std::vector<Address> newNodes;
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std::map<std::string,bool> dir(Utils::listDirectory(basePath.c_str()));
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for(std::map<std::string,bool>::iterator d(dir.begin());d!=dir.end();++d) {
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if ((d->first.length() == 11)&&(d->second)&&(d->first[0] == 'N')) {
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Address na(d->first.c_str() + 1);
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if (nodes.find(na) == nodes.end()) {
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InetAddress inaddr(inetAddressFromZeroTierAddress(na));
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SimNode *n = new SimNode(net,(basePath + ZT_PATH_SEPARATOR_S + d->first),rootTopology.c_str(),false,inaddr);
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nodes[na] = n;
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newNodes.push_back(na);
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}
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}
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}
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return newNodes;
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}
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static void doHelp(const std::vector<std::string> &cmd)
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{
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printf("---------- help"ZT_EOL_S);
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printf("---------- mksn <number of supernodes>"ZT_EOL_S);
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printf("---------- mkn <number of normal nodes>"ZT_EOL_S);
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printf("---------- list"ZT_EOL_S);
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printf("---------- join <address/*> <network ID>"ZT_EOL_S);
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printf("---------- leave <address/*> <network ID>"ZT_EOL_S);
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printf("---------- listnetworks <address/*>"ZT_EOL_S);
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printf("---------- listpeers <address/*>"ZT_EOL_S);
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printf("---------- alltoall"ZT_EOL_S);
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printf("---------- quit"ZT_EOL_S)
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}
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static void doMKSN(const std::vector<std::string> &cmd)
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{
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if (cmd.size() < 2) {
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doHelp(cmd);
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return;
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}
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if (nodes.size() > 0) {
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printf("---------- mksn error: mksn can only be called once (network already exists)"ZT_EOL_S,(unsigned int)nodes.size());
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return;
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}
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int count = Utils::strToInt(cmd[1].c_str());
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for(int i=0;i<count;++i) {
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Identity id(makeNodeHome(true));
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printf("%s identity created"ZT_EOL_S,id.address().toString().c_str());
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}
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std::vector<Address> nodes(initSupernodes());
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for(std::vector<Address>::iterator a(nodes.begin());a!=nodes.end();++a)
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printf("%s started (supernode)"ZT_EOL_S,a->toString().c_str());
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printf("---------- root topology is: %s"ZT_EOL_S,rootTopology.c_str());
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}
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static void doMKN(const std::vector<std::string> &cmd)
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{
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if (cmd.size() < 2) {
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doHelp(cmd);
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return;
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}
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if (nodes.size() == 0) {
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printf("---------- mkn error: use mksn to create supernodes first."ZT_EOL_S);
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return;
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}
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}
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static void doList(const std::vector<std::string> &cmd)
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{
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}
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static void doJoin(const std::vector<std::string> &cmd)
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{
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}
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static void doLeave(const std::vector<std::string> &cmd)
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{
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}
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static void doListNetworks(const std::vector<std::string> &cmd)
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{
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}
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static void doListPeers(const std::vector<std::string> &cmd)
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{
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}
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static void doAllToAll(const std::vector<std::string> &cmd)
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{
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}
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int main(int argc,char **argv)
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{
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char linebuf[1024];
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if (argc <= 1) {
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fprintf(stderr,"Usage: %s <base path for temporary node home directories>"ZT_EOL_S,argv[0]);
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return 1;
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}
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basePath = argv[1];
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#ifdef __WINDOWS__
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CreateDirectoryA(basePath.c_str(),NULL);
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#else
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mkdir(basePath.c_str(),0700);
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#endif
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printf("*** ZeroTier One Version %s -- Headless Network Simulator ***"ZT_EOL_S,Node::versionString());
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printf(ZT_EOL_S);
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{
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printf("---------- scanning '%s' for existing network..."ZT_EOL_S);
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std::vector<Address> snodes(initSupernodes());
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if (snodes.empty()) {
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printf("---------- no existing network found; use 'mksn' to create one."ZT_EOL_S);
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} else {
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for(std::vector<Address>::iterator a(snodes.begin());a!=snodes.end();++a)
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printf("%s started (supernode)"ZT_EOL_S,a->toString().c_str());
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printf("---------- root topology is: %s"ZT_EOL_S,rootTopology.c_str());
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std::vector<Address> nodes(scanForNewNodes());
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for(std::vector<Address>::iterator a(nodes.begin());a!=nodes.end();++a)
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printf("%s started (normal peer)"ZT_EOL_S,a->toString().c_str());
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printf("---------- %u peers and %u supernodes loaded!"ZT_EOL_S,(unsigned int)nodes.size(),(unsigned int)snodes.size());
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}
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}
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printf(ZT_EOL_S);
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printf("Type 'help' for help."ZT_EOL_S);
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printf(ZT_EOL_S);
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for(;;) {
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printf(">> ");
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fflush(stdout);
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if (!fgets(linebuf,sizeof(linebuf),stdin))
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break;
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std::vector<std::string> cmd(Utils::split(linebuf," \r\n\t","\\","\""));
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if (cmd.size() == 0)
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continue;
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if (cmd[0] == "quit")
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break;
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else if (cmd[0] == "help")
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doHelp(cmd);
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else if (cmd[0] == "mksn")
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doMKSN(cmd);
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else if (cmd[0] == "mkn")
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doMKN(cmd);
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else if (cmd[0] == "join")
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doJoin(cmd);
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else if (cmd[0] == "leave")
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doLeave(cmd);
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else if (cmd[0] == "listnetworks")
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doListNetworks(cmd);
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else if (cmd[0] == "listpeers")
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doListPeers(cmd);
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else if (cmd[0] == "alltoall")
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doAllToAll(cmd);
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else doHelp(cmd);
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}
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for(std::map< Address,SimNode * >::iterator n(nodes.begin());n!=nodes.end();++n) {
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printf("%s shutting down..."ZT_EOL_S,n->first.toString().c_str());
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delete n->second;
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}
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return 0;
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}
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