diff options
author | practicalswift <practicalswift@users.noreply.github.com> | 2020-01-31 22:37:07 +0000 |
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committer | practicalswift <practicalswift@users.noreply.github.com> | 2020-03-09 15:16:36 +0000 |
commit | 815c7a679316e34b2072a45949ad4ecb1ae1c7fb (patch) | |
tree | 51dd712578cfd8d3204edcc5287807dad029a00b /src/test/fuzz | |
parent | 31b2ce70fb279e886da636716e45ec75bca0a711 (diff) | |
download | bitcoin-815c7a679316e34b2072a45949ad4ecb1ae1c7fb.tar.xz |
tests: Add basic fuzzing harness for CNetAddr/CService/CSubNet related functions (netaddress.h)
Diffstat (limited to 'src/test/fuzz')
-rw-r--r-- | src/test/fuzz/netaddress.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/test/fuzz/netaddress.cpp b/src/test/fuzz/netaddress.cpp new file mode 100644 index 0000000000..7d87ebc214 --- /dev/null +++ b/src/test/fuzz/netaddress.cpp @@ -0,0 +1,123 @@ +// Copyright (c) 2020 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 <netaddress.h> +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> + +#include <cassert> +#include <cstdint> +#include <netinet/in.h> +#include <vector> + +namespace { +CNetAddr ConsumeNetAddr(FuzzedDataProvider& fuzzed_data_provider) noexcept +{ + const Network network = fuzzed_data_provider.PickValueInArray({Network::NET_IPV4, Network::NET_IPV6, Network::NET_INTERNAL, Network::NET_ONION}); + if (network == Network::NET_IPV4) { + const in_addr v4_addr = { + .s_addr = fuzzed_data_provider.ConsumeIntegral<uint32_t>()}; + return CNetAddr{v4_addr}; + } else if (network == Network::NET_IPV6) { + if (fuzzed_data_provider.remaining_bytes() < 16) { + return CNetAddr{}; + } + in6_addr v6_addr = {}; + memcpy(v6_addr.s6_addr, fuzzed_data_provider.ConsumeBytes<uint8_t>(16).data(), 16); + return CNetAddr{v6_addr, fuzzed_data_provider.ConsumeIntegral<uint32_t>()}; + } else if (network == Network::NET_INTERNAL) { + CNetAddr net_addr; + net_addr.SetInternal(fuzzed_data_provider.ConsumeBytesAsString(32)); + return net_addr; + } else if (network == Network::NET_ONION) { + CNetAddr net_addr; + net_addr.SetSpecial(fuzzed_data_provider.ConsumeBytesAsString(32)); + return net_addr; + } else { + assert(false); + } +} +}; // namespace + +void test_one_input(const std::vector<uint8_t>& buffer) +{ + FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); + + const CNetAddr net_addr = ConsumeNetAddr(fuzzed_data_provider); + for (int i = 0; i < 15; ++i) { + (void)net_addr.GetByte(i); + } + (void)net_addr.GetHash(); + (void)net_addr.GetNetClass(); + if (net_addr.GetNetwork() == Network::NET_IPV4) { + assert(net_addr.IsIPv4()); + } + if (net_addr.GetNetwork() == Network::NET_IPV6) { + assert(net_addr.IsIPv6()); + } + if (net_addr.GetNetwork() == Network::NET_ONION) { + assert(net_addr.IsTor()); + } + if (net_addr.GetNetwork() == Network::NET_INTERNAL) { + assert(net_addr.IsInternal()); + } + if (net_addr.GetNetwork() == Network::NET_UNROUTABLE) { + assert(!net_addr.IsRoutable()); + } + (void)net_addr.IsBindAny(); + if (net_addr.IsInternal()) { + assert(net_addr.GetNetwork() == Network::NET_INTERNAL); + } + if (net_addr.IsIPv4()) { + assert(net_addr.GetNetwork() == Network::NET_IPV4 || net_addr.GetNetwork() == Network::NET_UNROUTABLE); + } + if (net_addr.IsIPv6()) { + assert(net_addr.GetNetwork() == Network::NET_IPV6 || net_addr.GetNetwork() == Network::NET_UNROUTABLE); + } + (void)net_addr.IsLocal(); + if (net_addr.IsRFC1918() || net_addr.IsRFC2544() || net_addr.IsRFC6598() || net_addr.IsRFC5737() || net_addr.IsRFC3927()) { + assert(net_addr.IsIPv4()); + } + (void)net_addr.IsRFC2544(); + 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()) { + assert(net_addr.IsIPv6()); + } + (void)net_addr.IsRFC3927(); + (void)net_addr.IsRFC3964(); + if (net_addr.IsRFC4193()) { + assert(net_addr.GetNetwork() == Network::NET_ONION || net_addr.GetNetwork() == Network::NET_INTERNAL || net_addr.GetNetwork() == Network::NET_UNROUTABLE); + } + (void)net_addr.IsRFC4380(); + (void)net_addr.IsRFC4843(); + (void)net_addr.IsRFC4862(); + (void)net_addr.IsRFC5737(); + (void)net_addr.IsRFC6052(); + (void)net_addr.IsRFC6145(); + (void)net_addr.IsRFC6598(); + (void)net_addr.IsRFC7343(); + if (!net_addr.IsRoutable()) { + assert(net_addr.GetNetwork() == Network::NET_UNROUTABLE || net_addr.GetNetwork() == Network::NET_INTERNAL); + } + if (net_addr.IsTor()) { + assert(net_addr.GetNetwork() == Network::NET_ONION); + } + (void)net_addr.IsValid(); + (void)net_addr.ToString(); + (void)net_addr.ToStringIP(); + + const CSubNet sub_net{net_addr, fuzzed_data_provider.ConsumeIntegral<int32_t>()}; + (void)sub_net.IsValid(); + (void)sub_net.ToString(); + + const CService service{net_addr, fuzzed_data_provider.ConsumeIntegral<uint16_t>()}; + (void)service.GetKey(); + (void)service.GetPort(); + (void)service.ToString(); + (void)service.ToStringIPPort(); + (void)service.ToStringPort(); + + const CNetAddr other_net_addr = ConsumeNetAddr(fuzzed_data_provider); + (void)net_addr.GetReachabilityFrom(&other_net_addr); + (void)sub_net.Match(other_net_addr); +} |