// Copyright (c) 2012-2021 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std::literals; BOOST_FIXTURE_TEST_SUITE(net_tests, RegTestingSetup) BOOST_AUTO_TEST_CASE(cnode_listen_port) { // test default uint16_t port{GetListenPort()}; BOOST_CHECK(port == Params().GetDefaultPort()); // test set port uint16_t altPort = 12345; BOOST_CHECK(gArgs.SoftSetArg("-port", ToString(altPort))); port = GetListenPort(); BOOST_CHECK(port == altPort); } BOOST_AUTO_TEST_CASE(cnode_simple_test) { NodeId id = 0; in_addr ipv4Addr; ipv4Addr.s_addr = 0xa0b0c001; CAddress addr = CAddress(CService(ipv4Addr, 7777), NODE_NETWORK); std::string pszDest; std::unique_ptr pnode1 = std::make_unique(id++, NODE_NETWORK, /*sock=*/nullptr, addr, /*nKeyedNetGroupIn=*/0, /*nLocalHostNonceIn=*/0, CAddress(), pszDest, ConnectionType::OUTBOUND_FULL_RELAY, /*inbound_onion=*/false); BOOST_CHECK(pnode1->IsFullOutboundConn() == true); BOOST_CHECK(pnode1->IsManualConn() == false); BOOST_CHECK(pnode1->IsBlockOnlyConn() == false); BOOST_CHECK(pnode1->IsFeelerConn() == false); BOOST_CHECK(pnode1->IsAddrFetchConn() == false); BOOST_CHECK(pnode1->IsInboundConn() == false); BOOST_CHECK(pnode1->m_inbound_onion == false); BOOST_CHECK_EQUAL(pnode1->ConnectedThroughNetwork(), Network::NET_IPV4); std::unique_ptr pnode2 = std::make_unique(id++, NODE_NETWORK, /*sock=*/nullptr, addr, /*nKeyedNetGroupIn=*/1, /*nLocalHostNonceIn=*/1, CAddress(), pszDest, ConnectionType::INBOUND, /*inbound_onion=*/false); BOOST_CHECK(pnode2->IsFullOutboundConn() == false); BOOST_CHECK(pnode2->IsManualConn() == false); BOOST_CHECK(pnode2->IsBlockOnlyConn() == false); BOOST_CHECK(pnode2->IsFeelerConn() == false); BOOST_CHECK(pnode2->IsAddrFetchConn() == false); BOOST_CHECK(pnode2->IsInboundConn() == true); BOOST_CHECK(pnode2->m_inbound_onion == false); BOOST_CHECK_EQUAL(pnode2->ConnectedThroughNetwork(), Network::NET_IPV4); std::unique_ptr pnode3 = std::make_unique(id++, NODE_NETWORK, /*sock=*/nullptr, addr, /*nKeyedNetGroupIn=*/0, /*nLocalHostNonceIn=*/0, CAddress(), pszDest, ConnectionType::OUTBOUND_FULL_RELAY, /*inbound_onion=*/false); BOOST_CHECK(pnode3->IsFullOutboundConn() == true); BOOST_CHECK(pnode3->IsManualConn() == false); BOOST_CHECK(pnode3->IsBlockOnlyConn() == false); BOOST_CHECK(pnode3->IsFeelerConn() == false); BOOST_CHECK(pnode3->IsAddrFetchConn() == false); BOOST_CHECK(pnode3->IsInboundConn() == false); BOOST_CHECK(pnode3->m_inbound_onion == false); BOOST_CHECK_EQUAL(pnode3->ConnectedThroughNetwork(), Network::NET_IPV4); std::unique_ptr pnode4 = std::make_unique(id++, NODE_NETWORK, /*sock=*/nullptr, addr, /*nKeyedNetGroupIn=*/1, /*nLocalHostNonceIn=*/1, CAddress(), pszDest, ConnectionType::INBOUND, /*inbound_onion=*/true); BOOST_CHECK(pnode4->IsFullOutboundConn() == false); BOOST_CHECK(pnode4->IsManualConn() == false); BOOST_CHECK(pnode4->IsBlockOnlyConn() == false); BOOST_CHECK(pnode4->IsFeelerConn() == false); BOOST_CHECK(pnode4->IsAddrFetchConn() == false); BOOST_CHECK(pnode4->IsInboundConn() == true); BOOST_CHECK(pnode4->m_inbound_onion == true); BOOST_CHECK_EQUAL(pnode4->ConnectedThroughNetwork(), Network::NET_ONION); } BOOST_AUTO_TEST_CASE(cnetaddr_basic) { CNetAddr addr; // IPv4, INADDR_ANY BOOST_REQUIRE(LookupHost("0.0.0.0", addr, false)); BOOST_REQUIRE(!addr.IsValid()); BOOST_REQUIRE(addr.IsIPv4()); BOOST_CHECK(addr.IsBindAny()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "0.0.0.0"); // IPv4, INADDR_NONE BOOST_REQUIRE(LookupHost("255.255.255.255", addr, false)); BOOST_REQUIRE(!addr.IsValid()); BOOST_REQUIRE(addr.IsIPv4()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "255.255.255.255"); // IPv4, casual BOOST_REQUIRE(LookupHost("12.34.56.78", addr, false)); BOOST_REQUIRE(addr.IsValid()); BOOST_REQUIRE(addr.IsIPv4()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "12.34.56.78"); // IPv6, in6addr_any BOOST_REQUIRE(LookupHost("::", addr, false)); BOOST_REQUIRE(!addr.IsValid()); BOOST_REQUIRE(addr.IsIPv6()); BOOST_CHECK(addr.IsBindAny()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "::"); // IPv6, casual BOOST_REQUIRE(LookupHost("1122:3344:5566:7788:9900:aabb:ccdd:eeff", addr, false)); BOOST_REQUIRE(addr.IsValid()); BOOST_REQUIRE(addr.IsIPv6()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "1122:3344:5566:7788:9900:aabb:ccdd:eeff"); // IPv6, scoped/link-local. See https://tools.ietf.org/html/rfc4007 // We support non-negative decimal integers (uint32_t) as zone id indices. // Normal link-local scoped address functionality is to append "%" plus the // zone id, for example, given a link-local address of "fe80::1" and a zone // id of "32", return the address as "fe80::1%32". const std::string link_local{"fe80::1"}; const std::string scoped_addr{link_local + "%32"}; BOOST_REQUIRE(LookupHost(scoped_addr, addr, false)); BOOST_REQUIRE(addr.IsValid()); BOOST_REQUIRE(addr.IsIPv6()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK_EQUAL(addr.ToString(), scoped_addr); // Test that the delimiter "%" and default zone id of 0 can be omitted for the default scope. BOOST_REQUIRE(LookupHost(link_local + "%0", addr, false)); BOOST_REQUIRE(addr.IsValid()); BOOST_REQUIRE(addr.IsIPv6()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK_EQUAL(addr.ToString(), link_local); // TORv2, no longer supported BOOST_CHECK(!addr.SetSpecial("6hzph5hv6337r6p2.onion")); // TORv3 const char* torv3_addr = "pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion"; BOOST_REQUIRE(addr.SetSpecial(torv3_addr)); BOOST_REQUIRE(addr.IsValid()); BOOST_REQUIRE(addr.IsTor()); BOOST_CHECK(!addr.IsI2P()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK(!addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), torv3_addr); // TORv3, broken, with wrong checksum BOOST_CHECK(!addr.SetSpecial("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscsad.onion")); // TORv3, broken, with wrong version BOOST_CHECK(!addr.SetSpecial("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscrye.onion")); // TORv3, malicious BOOST_CHECK(!addr.SetSpecial(std::string{ "pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd\0wtf.onion", 66})); // TOR, bogus length BOOST_CHECK(!addr.SetSpecial(std::string{"mfrggzak.onion"})); // TOR, invalid base32 BOOST_CHECK(!addr.SetSpecial(std::string{"mf*g zak.onion"})); // I2P const char* i2p_addr = "UDHDrtrcetjm5sxzskjyr5ztpeszydbh4dpl3pl4utgqqw2v4jna.b32.I2P"; BOOST_REQUIRE(addr.SetSpecial(i2p_addr)); BOOST_REQUIRE(addr.IsValid()); BOOST_REQUIRE(addr.IsI2P()); BOOST_CHECK(!addr.IsTor()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK(!addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), ToLower(i2p_addr)); // I2P, correct length, but decodes to less than the expected number of bytes. BOOST_CHECK(!addr.SetSpecial("udhdrtrcetjm5sxzskjyr5ztpeszydbh4dpl3pl4utgqqw2v4jn=.b32.i2p")); // I2P, extra unnecessary padding BOOST_CHECK(!addr.SetSpecial("udhdrtrcetjm5sxzskjyr5ztpeszydbh4dpl3pl4utgqqw2v4jna=.b32.i2p")); // I2P, malicious BOOST_CHECK(!addr.SetSpecial("udhdrtrcetjm5sxzskjyr5ztpeszydbh4dpl3pl4utgqqw2v\0wtf.b32.i2p"s)); // I2P, valid but unsupported (56 Base32 characters) // See "Encrypted LS with Base 32 Addresses" in // https://geti2p.net/spec/encryptedleaseset.txt BOOST_CHECK( !addr.SetSpecial("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscsad.b32.i2p")); // I2P, invalid base32 BOOST_CHECK(!addr.SetSpecial(std::string{"tp*szydbh4dp.b32.i2p"})); // Internal addr.SetInternal("esffpp"); BOOST_REQUIRE(!addr.IsValid()); // "internal" is considered invalid BOOST_REQUIRE(addr.IsInternal()); BOOST_CHECK(!addr.IsBindAny()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "esffpvrt3wpeaygy.internal"); // Totally bogus BOOST_CHECK(!addr.SetSpecial("totally bogus")); } BOOST_AUTO_TEST_CASE(cnetaddr_tostring_canonical_ipv6) { // Test that CNetAddr::ToString formats IPv6 addresses with zero compression as described in // RFC 5952 ("A Recommendation for IPv6 Address Text Representation"). const std::map canonical_representations_ipv6{ {"0000:0000:0000:0000:0000:0000:0000:0000", "::"}, {"000:0000:000:00:0:00:000:0000", "::"}, {"000:000:000:000:000:000:000:000", "::"}, {"00:00:00:00:00:00:00:00", "::"}, {"0:0:0:0:0:0:0:0", "::"}, {"0:0:0:0:0:0:0:1", "::1"}, {"2001:0:0:1:0:0:0:1", "2001:0:0:1::1"}, {"2001:0db8:0:0:1:0:0:1", "2001:db8::1:0:0:1"}, {"2001:0db8:85a3:0000:0000:8a2e:0370:7334", "2001:db8:85a3::8a2e:370:7334"}, {"2001:0db8::0001", "2001:db8::1"}, {"2001:0db8::0001:0000", "2001:db8::1:0"}, {"2001:0db8::1:0:0:1", "2001:db8::1:0:0:1"}, {"2001:db8:0000:0:1::1", "2001:db8::1:0:0:1"}, {"2001:db8:0000:1:1:1:1:1", "2001:db8:0:1:1:1:1:1"}, {"2001:db8:0:0:0:0:2:1", "2001:db8::2:1"}, {"2001:db8:0:0:0::1", "2001:db8::1"}, {"2001:db8:0:0:1:0:0:1", "2001:db8::1:0:0:1"}, {"2001:db8:0:0:1::1", "2001:db8::1:0:0:1"}, {"2001:DB8:0:0:1::1", "2001:db8::1:0:0:1"}, {"2001:db8:0:0::1", "2001:db8::1"}, {"2001:db8:0:0:aaaa::1", "2001:db8::aaaa:0:0:1"}, {"2001:db8:0:1:1:1:1:1", "2001:db8:0:1:1:1:1:1"}, {"2001:db8:0::1", "2001:db8::1"}, {"2001:db8:85a3:0:0:8a2e:370:7334", "2001:db8:85a3::8a2e:370:7334"}, {"2001:db8::0:1", "2001:db8::1"}, {"2001:db8::0:1:0:0:1", "2001:db8::1:0:0:1"}, {"2001:DB8::1", "2001:db8::1"}, {"2001:db8::1", "2001:db8::1"}, {"2001:db8::1:0:0:1", "2001:db8::1:0:0:1"}, {"2001:db8::1:1:1:1:1", "2001:db8:0:1:1:1:1:1"}, {"2001:db8::aaaa:0:0:1", "2001:db8::aaaa:0:0:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd:0:1", "2001:db8:aaaa:bbbb:cccc:dddd:0:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd::1", "2001:db8:aaaa:bbbb:cccc:dddd:0:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:0001", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:001", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:01", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:1", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:1"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:aaaa", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:aaaa"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:AAAA", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:aaaa"}, {"2001:db8:aaaa:bbbb:cccc:dddd:eeee:AaAa", "2001:db8:aaaa:bbbb:cccc:dddd:eeee:aaaa"}, }; for (const auto& [input_address, expected_canonical_representation_output] : canonical_representations_ipv6) { CNetAddr net_addr; BOOST_REQUIRE(LookupHost(input_address, net_addr, false)); BOOST_REQUIRE(net_addr.IsIPv6()); BOOST_CHECK_EQUAL(net_addr.ToString(), expected_canonical_representation_output); } } BOOST_AUTO_TEST_CASE(cnetaddr_serialize_v1) { CNetAddr addr; CDataStream s(SER_NETWORK, PROTOCOL_VERSION); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "00000000000000000000000000000000"); s.clear(); BOOST_REQUIRE(LookupHost("1.2.3.4", addr, false)); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "00000000000000000000ffff01020304"); s.clear(); BOOST_REQUIRE(LookupHost("1a1b:2a2b:3a3b:4a4b:5a5b:6a6b:7a7b:8a8b", addr, false)); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "1a1b2a2b3a3b4a4b5a5b6a6b7a7b8a8b"); s.clear(); // TORv2, no longer supported BOOST_CHECK(!addr.SetSpecial("6hzph5hv6337r6p2.onion")); BOOST_REQUIRE(addr.SetSpecial("pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion")); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "00000000000000000000000000000000"); s.clear(); addr.SetInternal("a"); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "fd6b88c08724ca978112ca1bbdcafac2"); s.clear(); } BOOST_AUTO_TEST_CASE(cnetaddr_serialize_v2) { CNetAddr addr; CDataStream s(SER_NETWORK, PROTOCOL_VERSION); // Add ADDRV2_FORMAT to the version so that the CNetAddr // serialize method produces an address in v2 format. s.SetVersion(s.GetVersion() | ADDRV2_FORMAT); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "021000000000000000000000000000000000"); s.clear(); BOOST_REQUIRE(LookupHost("1.2.3.4", addr, false)); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "010401020304"); s.clear(); BOOST_REQUIRE(LookupHost("1a1b:2a2b:3a3b:4a4b:5a5b:6a6b:7a7b:8a8b", addr, false)); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "02101a1b2a2b3a3b4a4b5a5b6a6b7a7b8a8b"); s.clear(); // TORv2, no longer supported BOOST_CHECK(!addr.SetSpecial("6hzph5hv6337r6p2.onion")); BOOST_REQUIRE(addr.SetSpecial("kpgvmscirrdqpekbqjsvw5teanhatztpp2gl6eee4zkowvwfxwenqaid.onion")); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "042053cd5648488c4707914182655b7664034e09e66f7e8cbf1084e654eb56c5bd88"); s.clear(); BOOST_REQUIRE(addr.SetInternal("a")); s << addr; BOOST_CHECK_EQUAL(HexStr(s), "0210fd6b88c08724ca978112ca1bbdcafac2"); s.clear(); } BOOST_AUTO_TEST_CASE(cnetaddr_unserialize_v2) { CNetAddr addr; CDataStream s(SER_NETWORK, PROTOCOL_VERSION); // Add ADDRV2_FORMAT to the version so that the CNetAddr // unserialize method expects an address in v2 format. s.SetVersion(s.GetVersion() | ADDRV2_FORMAT); // Valid IPv4. s << Span{ParseHex("01" // network type (IPv4) "04" // address length "01020304")}; // address s >> addr; BOOST_CHECK(addr.IsValid()); BOOST_CHECK(addr.IsIPv4()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "1.2.3.4"); BOOST_REQUIRE(s.empty()); // Invalid IPv4, valid length but address itself is shorter. s << Span{ParseHex("01" // network type (IPv4) "04" // address length "0102")}; // address BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("end of data")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Invalid IPv4, with bogus length. s << Span{ParseHex("01" // network type (IPv4) "05" // address length "01020304")}; // address BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("BIP155 IPv4 address with length 5 (should be 4)")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Invalid IPv4, with extreme length. s << Span{ParseHex("01" // network type (IPv4) "fd0102" // address length (513 as CompactSize) "01020304")}; // address BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("Address too long: 513 > 512")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Valid IPv6. s << Span{ParseHex("02" // network type (IPv6) "10" // address length "0102030405060708090a0b0c0d0e0f10")}; // address s >> addr; BOOST_CHECK(addr.IsValid()); BOOST_CHECK(addr.IsIPv6()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "102:304:506:708:90a:b0c:d0e:f10"); BOOST_REQUIRE(s.empty()); // Valid IPv6, contains embedded "internal". s << Span{ParseHex( "02" // network type (IPv6) "10" // address length "fd6b88c08724ca978112ca1bbdcafac2")}; // address: 0xfd + sha256("bitcoin")[0:5] + // sha256(name)[0:10] s >> addr; BOOST_CHECK(addr.IsInternal()); BOOST_CHECK(addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "zklycewkdo64v6wc.internal"); BOOST_REQUIRE(s.empty()); // Invalid IPv6, with bogus length. s << Span{ParseHex("02" // network type (IPv6) "04" // address length "00")}; // address BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("BIP155 IPv6 address with length 4 (should be 16)")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Invalid IPv6, contains embedded IPv4. s << Span{ParseHex("02" // network type (IPv6) "10" // address length "00000000000000000000ffff01020304")}; // address s >> addr; BOOST_CHECK(!addr.IsValid()); BOOST_REQUIRE(s.empty()); // Invalid IPv6, contains embedded TORv2. s << Span{ParseHex("02" // network type (IPv6) "10" // address length "fd87d87eeb430102030405060708090a")}; // address s >> addr; BOOST_CHECK(!addr.IsValid()); BOOST_REQUIRE(s.empty()); // TORv2, no longer supported. s << Span{ParseHex("03" // network type (TORv2) "0a" // address length "f1f2f3f4f5f6f7f8f9fa")}; // address s >> addr; BOOST_CHECK(!addr.IsValid()); BOOST_REQUIRE(s.empty()); // Valid TORv3. s << Span{ParseHex("04" // network type (TORv3) "20" // address length "79bcc625184b05194975c28b66b66b04" // address "69f7f6556fb1ac3189a79b40dda32f1f" )}; s >> addr; BOOST_CHECK(addr.IsValid()); BOOST_CHECK(addr.IsTor()); BOOST_CHECK(!addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "pg6mmjiyjmcrsslvykfwnntlaru7p5svn6y2ymmju6nubxndf4pscryd.onion"); BOOST_REQUIRE(s.empty()); // Invalid TORv3, with bogus length. s << Span{ParseHex("04" // network type (TORv3) "00" // address length "00" // address )}; BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("BIP155 TORv3 address with length 0 (should be 32)")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Valid I2P. s << Span{ParseHex("05" // network type (I2P) "20" // address length "a2894dabaec08c0051a481a6dac88b64" // address "f98232ae42d4b6fd2fa81952dfe36a87")}; s >> addr; BOOST_CHECK(addr.IsValid()); BOOST_CHECK(addr.IsI2P()); BOOST_CHECK(!addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "ukeu3k5oycgaauneqgtnvselmt4yemvoilkln7jpvamvfx7dnkdq.b32.i2p"); BOOST_REQUIRE(s.empty()); // Invalid I2P, with bogus length. s << Span{ParseHex("05" // network type (I2P) "03" // address length "00" // address )}; BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("BIP155 I2P address with length 3 (should be 32)")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Valid CJDNS. s << Span{ParseHex("06" // network type (CJDNS) "10" // address length "fc000001000200030004000500060007" // address )}; s >> addr; BOOST_CHECK(addr.IsValid()); BOOST_CHECK(addr.IsCJDNS()); BOOST_CHECK(!addr.IsAddrV1Compatible()); BOOST_CHECK_EQUAL(addr.ToString(), "fc00:1:2:3:4:5:6:7"); BOOST_REQUIRE(s.empty()); // Invalid CJDNS, wrong prefix. s << Span{ParseHex("06" // network type (CJDNS) "10" // address length "aa000001000200030004000500060007" // address )}; s >> addr; BOOST_CHECK(addr.IsCJDNS()); BOOST_CHECK(!addr.IsValid()); BOOST_REQUIRE(s.empty()); // Invalid CJDNS, with bogus length. s << Span{ParseHex("06" // network type (CJDNS) "01" // address length "00" // address )}; BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("BIP155 CJDNS address with length 1 (should be 16)")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Unknown, with extreme length. s << Span{ParseHex("aa" // network type (unknown) "fe00000002" // address length (CompactSize's MAX_SIZE) "01020304050607" // address )}; BOOST_CHECK_EXCEPTION(s >> addr, std::ios_base::failure, HasReason("Address too long: 33554432 > 512")); BOOST_REQUIRE(!s.empty()); // The stream is not consumed on invalid input. s.clear(); // Unknown, with reasonable length. s << Span{ParseHex("aa" // network type (unknown) "04" // address length "01020304" // address )}; s >> addr; BOOST_CHECK(!addr.IsValid()); BOOST_REQUIRE(s.empty()); // Unknown, with zero length. s << Span{ParseHex("aa" // network type (unknown) "00" // address length "" // address )}; s >> addr; BOOST_CHECK(!addr.IsValid()); BOOST_REQUIRE(s.empty()); } // 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 in_addr raw_addr; raw_addr.s_addr = htonl(0x7f000001); const CNetAddr mapLocalHost_entry = CNetAddr(raw_addr); { LOCK(g_maplocalhost_mutex); LocalServiceInfo lsi; lsi.nScore = 23; lsi.nPort = 42; mapLocalHost[mapLocalHost_entry] = 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 pnode = std::make_unique(/*id=*/0, NODE_NETWORK, /*sock=*/nullptr, addr, /*nKeyedNetGroupIn=*/0, /*nLocalHostNonceIn=*/0, CAddress{}, /*pszDest=*/std::string{}, ConnectionType::OUTBOUND_FULL_RELAY, /*inbound_onion=*/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 GetLocalAddrForPeer(&*pnode); // suppress no-checks-run warning; if this test fails, it's by triggering a sanitizer BOOST_CHECK(1); // Cleanup, so that we don't confuse other tests. { LOCK(g_maplocalhost_mutex); mapLocalHost.erase(mapLocalHost_entry); } } BOOST_AUTO_TEST_CASE(get_local_addr_for_peer_port) { // Test that GetLocalAddrForPeer() properly selects the address to self-advertise: // // 1. GetLocalAddrForPeer() calls GetLocalAddress() which returns an address that is // not routable. // 2. GetLocalAddrForPeer() overrides the address with whatever the peer has told us // he sees us as. // 2.1. For inbound connections we must override both the address and the port. // 2.2. For outbound connections we must override only the address. // Pretend that we bound to this port. const uint16_t bind_port = 20001; m_node.args->ForceSetArg("-bind", strprintf("3.4.5.6:%u", bind_port)); // Our address:port as seen from the peer, completely different from the above. in_addr peer_us_addr; peer_us_addr.s_addr = htonl(0x02030405); const CAddress peer_us{CService{peer_us_addr, 20002}, NODE_NETWORK}; // Create a peer with a routable IPv4 address (outbound). in_addr peer_out_in_addr; peer_out_in_addr.s_addr = htonl(0x01020304); CNode peer_out{/*id=*/0, /*nLocalServicesIn=*/NODE_NETWORK, /*sock=*/nullptr, /*addrIn=*/CAddress{CService{peer_out_in_addr, 8333}, NODE_NETWORK}, /*nKeyedNetGroupIn=*/0, /*nLocalHostNonceIn=*/0, /*addrBindIn=*/CAddress{}, /*addrNameIn=*/std::string{}, /*conn_type_in=*/ConnectionType::OUTBOUND_FULL_RELAY, /*inbound_onion=*/false}; peer_out.fSuccessfullyConnected = true; peer_out.SetAddrLocal(peer_us); // Without the fix peer_us:8333 is chosen instead of the proper peer_us:bind_port. auto chosen_local_addr = GetLocalAddrForPeer(&peer_out); BOOST_REQUIRE(chosen_local_addr); const CService expected{peer_us_addr, bind_port}; BOOST_CHECK(*chosen_local_addr == expected); // Create a peer with a routable IPv4 address (inbound). in_addr peer_in_in_addr; peer_in_in_addr.s_addr = htonl(0x05060708); CNode peer_in{/*id=*/0, /*nLocalServicesIn=*/NODE_NETWORK, /*sock=*/nullptr, /*addrIn=*/CAddress{CService{peer_in_in_addr, 8333}, NODE_NETWORK}, /*nKeyedNetGroupIn=*/0, /*nLocalHostNonceIn=*/0, /*addrBindIn=*/CAddress{}, /*addrNameIn=*/std::string{}, /*conn_type_in=*/ConnectionType::INBOUND, /*inbound_onion=*/false}; peer_in.fSuccessfullyConnected = true; peer_in.SetAddrLocal(peer_us); // Without the fix peer_us:8333 is chosen instead of the proper peer_us:peer_us.GetPort(). chosen_local_addr = GetLocalAddrForPeer(&peer_in); BOOST_REQUIRE(chosen_local_addr); BOOST_CHECK(*chosen_local_addr == peer_us); m_node.args->ForceSetArg("-bind", ""); } BOOST_AUTO_TEST_CASE(LimitedAndReachable_Network) { BOOST_CHECK(IsReachable(NET_IPV4)); BOOST_CHECK(IsReachable(NET_IPV6)); BOOST_CHECK(IsReachable(NET_ONION)); BOOST_CHECK(IsReachable(NET_I2P)); BOOST_CHECK(IsReachable(NET_CJDNS)); SetReachable(NET_IPV4, false); SetReachable(NET_IPV6, false); SetReachable(NET_ONION, false); SetReachable(NET_I2P, false); SetReachable(NET_CJDNS, false); BOOST_CHECK(!IsReachable(NET_IPV4)); BOOST_CHECK(!IsReachable(NET_IPV6)); BOOST_CHECK(!IsReachable(NET_ONION)); BOOST_CHECK(!IsReachable(NET_I2P)); BOOST_CHECK(!IsReachable(NET_CJDNS)); SetReachable(NET_IPV4, true); SetReachable(NET_IPV6, true); SetReachable(NET_ONION, true); SetReachable(NET_I2P, true); SetReachable(NET_CJDNS, true); BOOST_CHECK(IsReachable(NET_IPV4)); BOOST_CHECK(IsReachable(NET_IPV6)); BOOST_CHECK(IsReachable(NET_ONION)); BOOST_CHECK(IsReachable(NET_I2P)); BOOST_CHECK(IsReachable(NET_CJDNS)); } BOOST_AUTO_TEST_CASE(LimitedAndReachable_NetworkCaseUnroutableAndInternal) { BOOST_CHECK(IsReachable(NET_UNROUTABLE)); BOOST_CHECK(IsReachable(NET_INTERNAL)); SetReachable(NET_UNROUTABLE, false); SetReachable(NET_INTERNAL, false); BOOST_CHECK(IsReachable(NET_UNROUTABLE)); // Ignored for both networks BOOST_CHECK(IsReachable(NET_INTERNAL)); } 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(IsReachable(addr)); SetReachable(NET_IPV4, false); BOOST_CHECK(!IsReachable(addr)); 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(!IsLocal(addr)); BOOST_CHECK(AddLocal(addr, 1000)); BOOST_CHECK(IsLocal(addr)); RemoveLocal(addr); BOOST_CHECK(!IsLocal(addr)); } BOOST_AUTO_TEST_CASE(initial_advertise_from_version_message) { // Tests the following scenario: // * -bind=3.4.5.6:20001 is specified // * we make an outbound connection to a peer // * the peer reports he sees us as 2.3.4.5:20002 in the version message // (20002 is a random port assigned by our OS for the outgoing TCP connection, // we cannot accept connections to it) // * we should self-advertise to that peer as 2.3.4.5:20001 // Pretend that we bound to this port. const uint16_t bind_port = 20001; m_node.args->ForceSetArg("-bind", strprintf("3.4.5.6:%u", bind_port)); m_node.args->ForceSetArg("-capturemessages", "1"); // Our address:port as seen from the peer - 2.3.4.5:20002 (different from the above). in_addr peer_us_addr; peer_us_addr.s_addr = htonl(0x02030405); const CService peer_us{peer_us_addr, 20002}; // Create a peer with a routable IPv4 address. in_addr peer_in_addr; peer_in_addr.s_addr = htonl(0x01020304); CNode peer{/*id=*/0, /*nLocalServicesIn=*/NODE_NETWORK, /*sock=*/nullptr, /*addrIn=*/CAddress{CService{peer_in_addr, 8333}, NODE_NETWORK}, /*nKeyedNetGroupIn=*/0, /*nLocalHostNonceIn=*/0, /*addrBindIn=*/CAddress{}, /*addrNameIn=*/std::string{}, /*conn_type_in=*/ConnectionType::OUTBOUND_FULL_RELAY, /*inbound_onion=*/false}; const uint64_t services{NODE_NETWORK | NODE_WITNESS}; const int64_t time{0}; const CNetMsgMaker msg_maker{PROTOCOL_VERSION}; // Force CChainState::IsInitialBlockDownload() to return false. // Otherwise PushAddress() isn't called by PeerManager::ProcessMessage(). TestChainState& chainstate = *static_cast(&m_node.chainman->ActiveChainstate()); chainstate.JumpOutOfIbd(); m_node.peerman->InitializeNode(&peer); std::atomic interrupt_dummy{false}; std::chrono::microseconds time_received_dummy{0}; const auto msg_version = msg_maker.Make(NetMsgType::VERSION, PROTOCOL_VERSION, services, time, services, peer_us); CDataStream msg_version_stream{msg_version.data, SER_NETWORK, PROTOCOL_VERSION}; m_node.peerman->ProcessMessage( peer, NetMsgType::VERSION, msg_version_stream, time_received_dummy, interrupt_dummy); const auto msg_verack = msg_maker.Make(NetMsgType::VERACK); CDataStream msg_verack_stream{msg_verack.data, SER_NETWORK, PROTOCOL_VERSION}; // Will set peer.fSuccessfullyConnected to true (necessary in SendMessages()). m_node.peerman->ProcessMessage( peer, NetMsgType::VERACK, msg_verack_stream, time_received_dummy, interrupt_dummy); // Ensure that peer_us_addr:bind_port is sent to the peer. const CService expected{peer_us_addr, bind_port}; bool sent{false}; const auto CaptureMessageOrig = CaptureMessage; CaptureMessage = [&sent, &expected](const CAddress& addr, const std::string& msg_type, Span data, bool is_incoming) -> void { if (!is_incoming && msg_type == "addr") { CDataStream s(data, SER_NETWORK, PROTOCOL_VERSION); std::vector addresses; s >> addresses; for (const auto& addr : addresses) { if (addr == expected) { sent = true; return; } } } }; { LOCK(peer.cs_sendProcessing); m_node.peerman->SendMessages(&peer); } BOOST_CHECK(sent); CaptureMessage = CaptureMessageOrig; chainstate.ResetIbd(); m_node.args->ForceSetArg("-capturemessages", "0"); m_node.args->ForceSetArg("-bind", ""); // PeerManager::ProcessMessage() calls AddTimeData() which changes the internal state // in timedata.cpp and later confuses the test "timedata_tests/addtimedata". Thus reset // that state as it was before our test was run. TestOnlyResetTimeData(); } BOOST_AUTO_TEST_SUITE_END()