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// Copyright (c) 2012-2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <addrdb.h>
#include <addrman.h>
#include <clientversion.h>
#include <test/setup_common.h>
#include <string>
#include <boost/test/unit_test.hpp>
#include <serialize.h>
#include <streams.h>
#include <net.h>
#include <netbase.h>
#include <chainparams.h>
#include <util/memory.h>
#include <util/system.h>
#include <memory>
class CAddrManSerializationMock : public CAddrMan
{
public:
virtual void Serialize(CDataStream& s) const = 0;
//! Ensure that bucket placement is always the same for testing purposes.
void MakeDeterministic()
{
nKey.SetNull();
insecure_rand = FastRandomContext(true);
}
};
class CAddrManUncorrupted : public CAddrManSerializationMock
{
public:
void Serialize(CDataStream& s) const override
{
CAddrMan::Serialize(s);
}
};
class CAddrManCorrupted : public CAddrManSerializationMock
{
public:
void Serialize(CDataStream& s) const override
{
// Produces corrupt output that claims addrman has 20 addrs when it only has one addr.
unsigned char nVersion = 1;
s << nVersion;
s << ((unsigned char)32);
s << nKey;
s << 10; // nNew
s << 10; // nTried
int nUBuckets = ADDRMAN_NEW_BUCKET_COUNT ^ (1 << 30);
s << nUBuckets;
CService serv;
BOOST_CHECK(Lookup("252.1.1.1", serv, 7777, false));
CAddress addr = CAddress(serv, NODE_NONE);
CNetAddr resolved;
BOOST_CHECK(LookupHost("252.2.2.2", resolved, false));
CAddrInfo info = CAddrInfo(addr, resolved);
s << info;
}
};
static CDataStream AddrmanToStream(CAddrManSerializationMock& _addrman)
{
CDataStream ssPeersIn(SER_DISK, CLIENT_VERSION);
ssPeersIn << Params().MessageStart();
ssPeersIn << _addrman;
std::string str = ssPeersIn.str();
std::vector<unsigned char> vchData(str.begin(), str.end());
return CDataStream(vchData, SER_DISK, CLIENT_VERSION);
}
BOOST_FIXTURE_TEST_SUITE(net_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(cnode_listen_port)
{
// test default
unsigned short port = GetListenPort();
BOOST_CHECK(port == Params().GetDefaultPort());
// test set port
unsigned short altPort = 12345;
BOOST_CHECK(gArgs.SoftSetArg("-port", std::to_string(altPort)));
port = GetListenPort();
BOOST_CHECK(port == altPort);
}
BOOST_AUTO_TEST_CASE(caddrdb_read)
{
CAddrManUncorrupted addrmanUncorrupted;
addrmanUncorrupted.MakeDeterministic();
CService addr1, addr2, addr3;
BOOST_CHECK(Lookup("250.7.1.1", addr1, 8333, false));
BOOST_CHECK(Lookup("250.7.2.2", addr2, 9999, false));
BOOST_CHECK(Lookup("250.7.3.3", addr3, 9999, false));
// Add three addresses to new table.
CService source;
BOOST_CHECK(Lookup("252.5.1.1", source, 8333, false));
BOOST_CHECK(addrmanUncorrupted.Add(CAddress(addr1, NODE_NONE), source));
BOOST_CHECK(addrmanUncorrupted.Add(CAddress(addr2, NODE_NONE), source));
BOOST_CHECK(addrmanUncorrupted.Add(CAddress(addr3, NODE_NONE), source));
// Test that the de-serialization does not throw an exception.
CDataStream ssPeers1 = AddrmanToStream(addrmanUncorrupted);
bool exceptionThrown = false;
CAddrMan addrman1;
BOOST_CHECK(addrman1.size() == 0);
try {
unsigned char pchMsgTmp[4];
ssPeers1 >> pchMsgTmp;
ssPeers1 >> addrman1;
} catch (const std::exception&) {
exceptionThrown = true;
}
BOOST_CHECK(addrman1.size() == 3);
BOOST_CHECK(exceptionThrown == false);
// Test that CAddrDB::Read creates an addrman with the correct number of addrs.
CDataStream ssPeers2 = AddrmanToStream(addrmanUncorrupted);
CAddrMan addrman2;
BOOST_CHECK(addrman2.size() == 0);
BOOST_CHECK(CAddrDB::Read(addrman2, ssPeers2));
BOOST_CHECK(addrman2.size() == 3);
}
BOOST_AUTO_TEST_CASE(caddrdb_read_corrupted)
{
CAddrManCorrupted addrmanCorrupted;
addrmanCorrupted.MakeDeterministic();
// Test that the de-serialization of corrupted addrman throws an exception.
CDataStream ssPeers1 = AddrmanToStream(addrmanCorrupted);
bool exceptionThrown = false;
CAddrMan addrman1;
BOOST_CHECK(addrman1.size() == 0);
try {
unsigned char pchMsgTmp[4];
ssPeers1 >> pchMsgTmp;
ssPeers1 >> addrman1;
} catch (const std::exception&) {
exceptionThrown = true;
}
// Even through de-serialization failed addrman is not left in a clean state.
BOOST_CHECK(addrman1.size() == 1);
BOOST_CHECK(exceptionThrown);
// Test that CAddrDB::Read leaves addrman in a clean state if de-serialization fails.
CDataStream ssPeers2 = AddrmanToStream(addrmanCorrupted);
CAddrMan addrman2;
BOOST_CHECK(addrman2.size() == 0);
BOOST_CHECK(!CAddrDB::Read(addrman2, ssPeers2));
BOOST_CHECK(addrman2.size() == 0);
}
BOOST_AUTO_TEST_CASE(cnode_simple_test)
{
SOCKET hSocket = INVALID_SOCKET;
NodeId id = 0;
int height = 0;
in_addr ipv4Addr;
ipv4Addr.s_addr = 0xa0b0c001;
CAddress addr = CAddress(CService(ipv4Addr, 7777), NODE_NETWORK);
std::string pszDest;
bool fInboundIn = false;
// Test that fFeeler is false by default.
std::unique_ptr<CNode> pnode1 = MakeUnique<CNode>(id++, NODE_NETWORK, height, hSocket, addr, 0, 0, CAddress(), pszDest, fInboundIn);
BOOST_CHECK(pnode1->fInbound == false);
BOOST_CHECK(pnode1->fFeeler == false);
fInboundIn = true;
std::unique_ptr<CNode> pnode2 = MakeUnique<CNode>(id++, NODE_NETWORK, height, hSocket, addr, 1, 1, CAddress(), pszDest, fInboundIn);
BOOST_CHECK(pnode2->fInbound == true);
BOOST_CHECK(pnode2->fFeeler == false);
}
// prior to PR #14728, this test triggers an undefined behavior
BOOST_AUTO_TEST_CASE(ipv4_peer_with_ipv6_addrMe_test)
{
// set up local addresses; all that's necessary to reproduce the bug is
// that a normal IPv4 address is among the entries, but if this address is
// !IsRoutable the undefined behavior is easier to trigger deterministically
{
LOCK(cs_mapLocalHost);
in_addr ipv4AddrLocal;
ipv4AddrLocal.s_addr = 0x0100007f;
CNetAddr addr = CNetAddr(ipv4AddrLocal);
LocalServiceInfo lsi;
lsi.nScore = 23;
lsi.nPort = 42;
mapLocalHost[addr] = lsi;
}
// create a peer with an IPv4 address
in_addr ipv4AddrPeer;
ipv4AddrPeer.s_addr = 0xa0b0c001;
CAddress addr = CAddress(CService(ipv4AddrPeer, 7777), NODE_NETWORK);
std::unique_ptr<CNode> pnode = MakeUnique<CNode>(0, NODE_NETWORK, 0, INVALID_SOCKET, addr, 0, 0, CAddress{}, std::string{}, false);
pnode->fSuccessfullyConnected.store(true);
// the peer claims to be reaching us via IPv6
in6_addr ipv6AddrLocal;
memset(ipv6AddrLocal.s6_addr, 0, 16);
ipv6AddrLocal.s6_addr[0] = 0xcc;
CAddress addrLocal = CAddress(CService(ipv6AddrLocal, 7777), NODE_NETWORK);
pnode->SetAddrLocal(addrLocal);
// before patch, this causes undefined behavior detectable with clang's -fsanitize=memory
AdvertiseLocal(&*pnode);
// suppress no-checks-run warning; if this test fails, it's by triggering a sanitizer
BOOST_CHECK(1);
}
BOOST_AUTO_TEST_CASE(LimitedAndReachable_Network)
{
BOOST_CHECK_EQUAL(IsReachable(NET_IPV4), true);
BOOST_CHECK_EQUAL(IsReachable(NET_IPV6), true);
BOOST_CHECK_EQUAL(IsReachable(NET_ONION), true);
SetReachable(NET_IPV4, false);
SetReachable(NET_IPV6, false);
SetReachable(NET_ONION, false);
BOOST_CHECK_EQUAL(IsReachable(NET_IPV4), false);
BOOST_CHECK_EQUAL(IsReachable(NET_IPV6), false);
BOOST_CHECK_EQUAL(IsReachable(NET_ONION), false);
SetReachable(NET_IPV4, true);
SetReachable(NET_IPV6, true);
SetReachable(NET_ONION, true);
BOOST_CHECK_EQUAL(IsReachable(NET_IPV4), true);
BOOST_CHECK_EQUAL(IsReachable(NET_IPV6), true);
BOOST_CHECK_EQUAL(IsReachable(NET_ONION), true);
}
BOOST_AUTO_TEST_CASE(LimitedAndReachable_NetworkCaseUnroutableAndInternal)
{
BOOST_CHECK_EQUAL(IsReachable(NET_UNROUTABLE), true);
BOOST_CHECK_EQUAL(IsReachable(NET_INTERNAL), true);
SetReachable(NET_UNROUTABLE, false);
SetReachable(NET_INTERNAL, false);
BOOST_CHECK_EQUAL(IsReachable(NET_UNROUTABLE), true); // Ignored for both networks
BOOST_CHECK_EQUAL(IsReachable(NET_INTERNAL), true);
}
CNetAddr UtilBuildAddress(unsigned char p1, unsigned char p2, unsigned char p3, unsigned char p4)
{
unsigned char ip[] = {p1, p2, p3, p4};
struct sockaddr_in sa;
memset(&sa, 0, sizeof(sockaddr_in)); // initialize the memory block
memcpy(&(sa.sin_addr), &ip, sizeof(ip));
return CNetAddr(sa.sin_addr);
}
BOOST_AUTO_TEST_CASE(LimitedAndReachable_CNetAddr)
{
CNetAddr addr = UtilBuildAddress(0x001, 0x001, 0x001, 0x001); // 1.1.1.1
SetReachable(NET_IPV4, true);
BOOST_CHECK_EQUAL(IsReachable(addr), true);
SetReachable(NET_IPV4, false);
BOOST_CHECK_EQUAL(IsReachable(addr), false);
SetReachable(NET_IPV4, true); // have to reset this, because this is stateful.
}
BOOST_AUTO_TEST_CASE(LocalAddress_BasicLifecycle)
{
CService addr = CService(UtilBuildAddress(0x002, 0x001, 0x001, 0x001), 1000); // 2.1.1.1:1000
SetReachable(NET_IPV4, true);
BOOST_CHECK_EQUAL(IsLocal(addr), false);
BOOST_CHECK_EQUAL(AddLocal(addr, 1000), true);
BOOST_CHECK_EQUAL(IsLocal(addr), true);
RemoveLocal(addr);
BOOST_CHECK_EQUAL(IsLocal(addr), false);
}
BOOST_AUTO_TEST_SUITE_END()
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