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partial bitcoin#18047: Add basic fuzzing harness for CNetAddr/CService/CSubNet related functions (netaddress.h)
This commit is contained in:
Kittywhiskers Van Gogh
parent
09825e4678
commit
0d5a7929ac
@ -56,6 +56,7 @@ FUZZ_TARGETS = \
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test/fuzz/multiplication_overflow \
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test/fuzz/net_permissions \
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test/fuzz/netaddr_deserialize \
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test/fuzz/netaddress \
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test/fuzz/out_point_deserialize \
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test/fuzz/p2p_transport_deserializer \
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test/fuzz/parse_hd_keypath \
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@ -599,6 +600,12 @@ test_fuzz_netaddr_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
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test_fuzz_netaddr_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
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test_fuzz_netaddr_deserialize_SOURCES = $(FUZZ_SUITE) test/fuzz/deserialize.cpp
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test_fuzz_netaddress_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
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test_fuzz_netaddress_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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test_fuzz_netaddress_LDADD = $(FUZZ_SUITE_LD_COMMON)
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test_fuzz_netaddress_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) $(LDFLAGS_WRAP_EXCEPTIONS)
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test_fuzz_netaddress_SOURCES = $(FUZZ_SUITE) test/fuzz/netaddress.cpp
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test_fuzz_out_point_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DOUT_POINT_DESERIALIZE=1
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test_fuzz_out_point_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
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test_fuzz_out_point_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
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120
src/test/fuzz/netaddress.cpp
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120
src/test/fuzz/netaddress.cpp
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@ -0,0 +1,120 @@
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// Copyright (c) 2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <netaddress.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <cassert>
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#include <cstdint>
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#include <netinet/in.h>
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#include <vector>
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namespace {
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CNetAddr ConsumeNetAddr(FuzzedDataProvider& fuzzed_data_provider) noexcept
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{
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const Network network = fuzzed_data_provider.PickValueInArray({Network::NET_IPV4, Network::NET_IPV6, Network::NET_INTERNAL, Network::NET_ONION});
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if (network == Network::NET_IPV4) {
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const in_addr v4_addr = {
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.s_addr = fuzzed_data_provider.ConsumeIntegral<uint32_t>()};
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return CNetAddr{v4_addr};
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} else if (network == Network::NET_IPV6) {
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if (fuzzed_data_provider.remaining_bytes() < 16) {
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return CNetAddr{};
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}
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in6_addr v6_addr = {};
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memcpy(v6_addr.s6_addr, fuzzed_data_provider.ConsumeBytes<uint8_t>(16).data(), 16);
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return CNetAddr{v6_addr, fuzzed_data_provider.ConsumeIntegral<uint32_t>()};
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} else if (network == Network::NET_INTERNAL) {
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CNetAddr net_addr;
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net_addr.SetInternal(fuzzed_data_provider.ConsumeBytesAsString(32));
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return net_addr;
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} else if (network == Network::NET_ONION) {
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CNetAddr net_addr;
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net_addr.SetSpecial(fuzzed_data_provider.ConsumeBytesAsString(32));
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return net_addr;
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} else {
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assert(false);
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}
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}
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}; // namespace
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void test_one_input(const std::vector<uint8_t>& buffer)
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{
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FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
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const CNetAddr net_addr = ConsumeNetAddr(fuzzed_data_provider);
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(void)net_addr.GetHash();
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(void)net_addr.GetNetClass();
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if (net_addr.GetNetwork() == Network::NET_IPV4) {
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assert(net_addr.IsIPv4());
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}
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if (net_addr.GetNetwork() == Network::NET_IPV6) {
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assert(net_addr.IsIPv6());
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}
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if (net_addr.GetNetwork() == Network::NET_ONION) {
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assert(net_addr.IsTor());
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}
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if (net_addr.GetNetwork() == Network::NET_INTERNAL) {
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assert(net_addr.IsInternal());
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}
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if (net_addr.GetNetwork() == Network::NET_UNROUTABLE) {
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assert(!net_addr.IsRoutable());
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}
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(void)net_addr.IsBindAny();
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if (net_addr.IsInternal()) {
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assert(net_addr.GetNetwork() == Network::NET_INTERNAL);
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}
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if (net_addr.IsIPv4()) {
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assert(net_addr.GetNetwork() == Network::NET_IPV4 || net_addr.GetNetwork() == Network::NET_UNROUTABLE);
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}
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if (net_addr.IsIPv6()) {
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assert(net_addr.GetNetwork() == Network::NET_IPV6 || net_addr.GetNetwork() == Network::NET_UNROUTABLE);
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}
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(void)net_addr.IsLocal();
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if (net_addr.IsRFC1918() || net_addr.IsRFC2544() || net_addr.IsRFC6598() || net_addr.IsRFC5737() || net_addr.IsRFC3927()) {
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assert(net_addr.IsIPv4());
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}
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(void)net_addr.IsRFC2544();
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if (net_addr.IsRFC3849() || net_addr.IsRFC3964() || net_addr.IsRFC4380() || net_addr.IsRFC4843() || net_addr.IsRFC7343() || net_addr.IsRFC4862() || net_addr.IsRFC6052() || net_addr.IsRFC6145()) {
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assert(net_addr.IsIPv6());
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}
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(void)net_addr.IsRFC3927();
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(void)net_addr.IsRFC3964();
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if (net_addr.IsRFC4193()) {
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assert(net_addr.GetNetwork() == Network::NET_ONION || net_addr.GetNetwork() == Network::NET_INTERNAL || net_addr.GetNetwork() == Network::NET_UNROUTABLE);
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}
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(void)net_addr.IsRFC4380();
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(void)net_addr.IsRFC4843();
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(void)net_addr.IsRFC4862();
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(void)net_addr.IsRFC5737();
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(void)net_addr.IsRFC6052();
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(void)net_addr.IsRFC6145();
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(void)net_addr.IsRFC6598();
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(void)net_addr.IsRFC7343();
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if (!net_addr.IsRoutable()) {
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assert(net_addr.GetNetwork() == Network::NET_UNROUTABLE || net_addr.GetNetwork() == Network::NET_INTERNAL);
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}
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if (net_addr.IsTor()) {
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assert(net_addr.GetNetwork() == Network::NET_ONION);
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}
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(void)net_addr.IsValid();
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(void)net_addr.ToString();
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(void)net_addr.ToStringIP();
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const CSubNet sub_net{net_addr, fuzzed_data_provider.ConsumeIntegral<uint8_t>()};
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(void)sub_net.IsValid();
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(void)sub_net.ToString();
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const CService service{net_addr, fuzzed_data_provider.ConsumeIntegral<uint16_t>()};
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(void)service.GetKey();
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(void)service.GetPort();
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(void)service.ToString();
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(void)service.ToStringIPPort();
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(void)service.ToStringPort();
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const CNetAddr other_net_addr = ConsumeNetAddr(fuzzed_data_provider);
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(void)net_addr.GetReachabilityFrom(&other_net_addr);
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(void)sub_net.Match(other_net_addr);
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}
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@ -33,6 +33,7 @@ FUZZERS_MISSING_CORPORA = [
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"key_origin_info_deserialize",
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"locale",
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"merkle_block_deserialize",
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"netaddress",
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"out_point_deserialize",
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"p2p_transport_deserializer",
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"parse_hd_keypath",
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