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-rw-r--r--net.cpp372
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-/*
- This file is part of cpp-ethereum.
-
- cpp-ethereum 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.
-
- cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
-*/
-/** @file net.cpp
- * @author Alex Leverington <nessence@gmail.com>
- * @date 2014
- */
-
-#include <boost/test/unit_test.hpp>
-
-#include <libdevcore/Worker.h>
-#include <libdevcore/Assertions.h>
-#include <libdevcrypto/Common.h>
-#include <libp2p/UDP.h>
-#include <libp2p/NodeTable.h>
-using namespace std;
-using namespace dev;
-using namespace dev::p2p;
-namespace ba = boost::asio;
-namespace bi = ba::ip;
-
-struct NetFixture
-{
- NetFixture() { dev::p2p::NodeIPEndpoint::test_allowLocal = true; }
- ~NetFixture() { dev::p2p::NodeIPEndpoint::test_allowLocal = false; }
-};
-
-BOOST_FIXTURE_TEST_SUITE(net, NetFixture)
-
-/**
- * Only used for testing. Not useful beyond tests.
- */
-class TestHost: public Worker
-{
-public:
- TestHost(): Worker("test",0), m_io() {};
- virtual ~TestHost() { m_io.stop(); stopWorking(); }
- void start() { startWorking(); }
- void doWork() { m_io.run(); }
- void doneWorking() { m_io.reset(); m_io.poll(); m_io.reset(); }
-
-protected:
- ba::io_service m_io;
-};
-
-struct TestNodeTable: public NodeTable
-{
- /// Constructor
- TestNodeTable(ba::io_service& _io, KeyPair _alias, bi::address const& _addr, uint16_t _port = 30300): NodeTable(_io, _alias, NodeIPEndpoint(_addr, _port, _port)) {}
-
- static std::vector<std::pair<KeyPair,unsigned>> createTestNodes(unsigned _count)
- {
- std::vector<std::pair<KeyPair,unsigned>> ret;
- asserts(_count < 1000);
- static uint16_t s_basePort = 30500;
-
- ret.clear();
- for (unsigned i = 0; i < _count; i++)
- {
- KeyPair k = KeyPair::create();
- ret.push_back(make_pair(k,s_basePort+i));
- }
-
- return std::move(ret);
- }
-
- void pingTestNodes(std::vector<std::pair<KeyPair,unsigned>> const& _testNodes)
- {
- bi::address ourIp = bi::address::from_string("127.0.0.1");
- for (auto& n: _testNodes)
- {
- ping(bi::udp::endpoint(ourIp, n.second));
- this_thread::sleep_for(chrono::milliseconds(2));
- }
- }
-
- void populateTestNodes(std::vector<std::pair<KeyPair,unsigned>> const& _testNodes, size_t _count = 0)
- {
- if (!_count)
- _count = _testNodes.size();
-
- bi::address ourIp = bi::address::from_string("127.0.0.1");
- for (auto& n: _testNodes)
- if (_count--)
- {
- // manually add node for test
- {
- Guard ln(x_nodes);
- shared_ptr<NodeEntry> node(new NodeEntry(m_node, n.first.pub(), NodeIPEndpoint(ourIp, n.second, n.second)));
- node->pending = false;
- m_nodes[node->id] = node;
- }
- noteActiveNode(n.first.pub(), bi::udp::endpoint(ourIp, n.second));
- }
- else
- break;
- }
-
- void reset()
- {
- Guard l(x_state);
- for (auto& n: m_state) n.nodes.clear();
- }
-};
-
-/**
- * Only used for testing. Not useful beyond tests.
- */
-struct TestNodeTableHost: public TestHost
-{
- TestNodeTableHost(unsigned _count = 8): m_alias(KeyPair::create()), nodeTable(new TestNodeTable(m_io, m_alias, bi::address::from_string("127.0.0.1"))), testNodes(TestNodeTable::createTestNodes(_count)) {};
- ~TestNodeTableHost() { m_io.stop(); stopWorking(); }
-
- void setup() { for (auto n: testNodes) nodeTables.push_back(make_shared<TestNodeTable>(m_io,n.first, bi::address::from_string("127.0.0.1"),n.second)); }
-
- void pingAll() { for (auto& t: nodeTables) t->pingTestNodes(testNodes); }
-
- void populateAll(size_t _count = 0) { for (auto& t: nodeTables) t->populateTestNodes(testNodes, _count); }
-
- void populate(size_t _count = 0) { nodeTable->populateTestNodes(testNodes, _count); }
-
- KeyPair m_alias;
- shared_ptr<TestNodeTable> nodeTable;
- std::vector<std::pair<KeyPair,unsigned>> testNodes; // keypair and port
- std::vector<shared_ptr<TestNodeTable>> nodeTables;
-};
-
-class TestUDPSocket: UDPSocketEvents, public TestHost
-{
-public:
- TestUDPSocket(): m_socket(new UDPSocket<TestUDPSocket, 1024>(m_io, *this, 30300)) {}
-
- void onDisconnected(UDPSocketFace*) {};
- void onReceived(UDPSocketFace*, bi::udp::endpoint const&, bytesConstRef _packet) { if (_packet.toString() == "AAAA") success = true; }
-
- shared_ptr<UDPSocket<TestUDPSocket, 1024>> m_socket;
-
- bool success = false;
-};
-
-BOOST_AUTO_TEST_CASE(requestTimeout)
-{
- using TimePoint = std::chrono::steady_clock::time_point;
- using RequestTimeout = std::pair<NodeId, TimePoint>;
-
- std::chrono::milliseconds timeout(300);
- std::list<RequestTimeout> timeouts;
-
- NodeId nodeA(sha3("a"));
- NodeId nodeB(sha3("b"));
- timeouts.push_back(make_pair(nodeA, chrono::steady_clock::now()));
- this_thread::sleep_for(std::chrono::milliseconds(100));
- timeouts.push_back(make_pair(nodeB, chrono::steady_clock::now()));
- this_thread::sleep_for(std::chrono::milliseconds(210));
-
- bool nodeAtriggered = false;
- bool nodeBtriggered = false;
- timeouts.remove_if([&](RequestTimeout const& t)
- {
- auto now = chrono::steady_clock::now();
- auto diff = now - t.second;
- if (t.first == nodeA && diff < timeout)
- nodeAtriggered = true;
- if (t.first == nodeB && diff < timeout)
- nodeBtriggered = true;
- return (t.first == nodeA || t.first == nodeB);
- });
-
- BOOST_REQUIRE(nodeAtriggered == false);
- BOOST_REQUIRE(nodeBtriggered == true);
- BOOST_REQUIRE(timeouts.size() == 0);
-}
-
-BOOST_AUTO_TEST_CASE(isIPAddressType)
-{
- string wildcard = "0.0.0.0";
- BOOST_REQUIRE(bi::address::from_string(wildcard).is_unspecified());
-
- string empty = "";
- BOOST_REQUIRE_THROW(bi::address::from_string(empty).is_unspecified(), std::exception);
-
- string publicAddress192 = "192.169.0.0";
- BOOST_REQUIRE(isPublicAddress(publicAddress192));
- BOOST_REQUIRE(!isPrivateAddress(publicAddress192));
- BOOST_REQUIRE(!isLocalHostAddress(publicAddress192));
-
- string publicAddress172 = "172.32.0.0";
- BOOST_REQUIRE(isPublicAddress(publicAddress172));
- BOOST_REQUIRE(!isPrivateAddress(publicAddress172));
- BOOST_REQUIRE(!isLocalHostAddress(publicAddress172));
-
- string privateAddress192 = "192.168.1.0";
- BOOST_REQUIRE(isPrivateAddress(privateAddress192));
- BOOST_REQUIRE(!isPublicAddress(privateAddress192));
- BOOST_REQUIRE(!isLocalHostAddress(privateAddress192));
-
- string privateAddress172 = "172.16.0.0";
- BOOST_REQUIRE(isPrivateAddress(privateAddress172));
- BOOST_REQUIRE(!isPublicAddress(privateAddress172));
- BOOST_REQUIRE(!isLocalHostAddress(privateAddress172));
-
- string privateAddress10 = "10.0.0.0";
- BOOST_REQUIRE(isPrivateAddress(privateAddress10));
- BOOST_REQUIRE(!isPublicAddress(privateAddress10));
- BOOST_REQUIRE(!isLocalHostAddress(privateAddress10));
-}
-
-BOOST_AUTO_TEST_CASE(v2PingNodePacket)
-{
- // test old versino of pingNode packet w/new
- RLPStream s;
- s.appendList(3); s << "1.1.1.1" << 30303 << std::chrono::duration_cast<std::chrono::seconds>((std::chrono::system_clock::now() + chrono::seconds(60)).time_since_epoch()).count();
-
- PingNode p((bi::udp::endpoint()));
- BOOST_REQUIRE_NO_THROW(p = PingNode::fromBytesConstRef(bi::udp::endpoint(), bytesConstRef(&s.out())));
- BOOST_REQUIRE(p.version == 2);
-}
-
-BOOST_AUTO_TEST_CASE(neighboursPacketLength)
-{
- KeyPair k = KeyPair::create();
- std::vector<std::pair<KeyPair,unsigned>> testNodes(TestNodeTable::createTestNodes(16));
- bi::udp::endpoint to(boost::asio::ip::address::from_string("127.0.0.1"), 30000);
-
- // hash(32), signature(65), overhead: packet(2), type(1), nodeList(2), ts(9),
- static unsigned const nlimit = (1280 - 111) / 87;
- for (unsigned offset = 0; offset < testNodes.size(); offset += nlimit)
- {
- Neighbours out(to);
-
- auto limit = nlimit ? std::min(testNodes.size(), (size_t)(offset + nlimit)) : testNodes.size();
- for (auto i = offset; i < limit; i++)
- {
- Neighbours::Node node;
- node.ipAddress = boost::asio::ip::address::from_string("200.200.200.200").to_string();
- node.udpPort = testNodes[i].second;
- node.node = testNodes[i].first.pub();
- out.nodes.push_back(node);
- }
-
- out.sign(k.sec());
- BOOST_REQUIRE_LE(out.data.size(), 1280);
- }
-}
-
-BOOST_AUTO_TEST_CASE(test_neighbours_packet)
-{
- KeyPair k = KeyPair::create();
- std::vector<std::pair<KeyPair,unsigned>> testNodes(TestNodeTable::createTestNodes(16));
- bi::udp::endpoint to(boost::asio::ip::address::from_string("127.0.0.1"), 30000);
-
- Neighbours out(to);
- for (auto n: testNodes)
- {
- Neighbours::Node node;
- node.ipAddress = boost::asio::ip::address::from_string("127.0.0.1").to_string();
- node.udpPort = n.second;
- node.node = n.first.pub();
- out.nodes.push_back(node);
- }
- out.sign(k.sec());
-
- bytesConstRef packet(out.data.data(), out.data.size());
- bytesConstRef rlpBytes(packet.cropped(h256::size + Signature::size + 1));
- Neighbours in = Neighbours::fromBytesConstRef(to, rlpBytes);
- int count = 0;
- for (auto n: in.nodes)
- {
- BOOST_REQUIRE_EQUAL(testNodes[count].second, n.udpPort);
- BOOST_REQUIRE_EQUAL(testNodes[count].first.pub(), n.node);
- BOOST_REQUIRE_EQUAL(sha3(testNodes[count].first.pub()), sha3(n.node));
- count++;
- }
-}
-
-BOOST_AUTO_TEST_CASE(test_findnode_neighbours)
-{
- // Executing findNode should result in a list which is serialized
- // into Neighbours packet. Neighbours packet should then be deserialized
- // into the same list of nearest nodes.
-}
-
-BOOST_AUTO_TEST_CASE(test_windows_template)
-{
- bi::udp::endpoint ep;
- PingNode p(ep);
-}
-
-BOOST_AUTO_TEST_CASE(kademlia)
-{
- // Not yet a 'real' test.
- TestNodeTableHost node(8);
- node.start();
- node.nodeTable->discover(); // ideally, joining with empty node table logs warning we can check for
- node.setup();
- node.populate();
- clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
-
- node.populateAll();
- clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
-
- auto nodes = node.nodeTable->nodes();
- nodes.sort();
-
- node.nodeTable->reset();
- clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
-
- node.populate(1);
- clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
-
- node.nodeTable->discover();
- this_thread::sleep_for(chrono::milliseconds(2000));
- clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
-
- BOOST_REQUIRE_EQUAL(node.nodeTable->count(), 8);
-
- auto netNodes = node.nodeTable->nodes();
- netNodes.sort();
-
-}
-
-BOOST_AUTO_TEST_CASE(test_udp_once)
-{
- UDPDatagram d(bi::udp::endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 30300), bytes({65,65,65,65}));
- TestUDPSocket a; a.m_socket->connect(); a.start();
- a.m_socket->send(d);
- this_thread::sleep_for(chrono::seconds(1));
- BOOST_REQUIRE_EQUAL(true, a.success);
-}
-
-BOOST_AUTO_TEST_SUITE_END()
-
-BOOST_AUTO_TEST_SUITE(netTypes)
-
-BOOST_AUTO_TEST_CASE(unspecifiedNode)
-{
- Node n = UnspecifiedNode;
- BOOST_REQUIRE(!n);
-
- Node node(Public(sha3("0")), NodeIPEndpoint(bi::address(), 0, 0));
- BOOST_REQUIRE(node);
- BOOST_REQUIRE(n != node);
-
- Node nodeEq(Public(sha3("0")), NodeIPEndpoint(bi::address(), 0, 0));
- BOOST_REQUIRE_EQUAL(node, nodeEq);
-}
-
-BOOST_AUTO_TEST_CASE(nodeTableReturnsUnspecifiedNode)
-{
- ba::io_service io;
- NodeTable t(io, KeyPair::create(), NodeIPEndpoint(bi::address::from_string("127.0.0.1"), 30303, 30303));
- if (Node n = t.node(NodeId()))
- BOOST_REQUIRE(false);
- else
- BOOST_REQUIRE(n == UnspecifiedNode);
-}
-
-BOOST_AUTO_TEST_SUITE_END()
-
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