From a2aca207b1ad00ec05d7533dbd75bbff830e1d75 Mon Sep 17 00:00:00 2001 From: Sriram Date: Wed, 14 Jul 2021 15:18:25 +0530 Subject: [PATCH] Move implementations of non-template fuzz helpers Moved implementations of `ConsumeTxMemPoolEntry`, `ContainsSpentInput`, `ConsumeNetAddr`, and the methods(open, read, write, seek, close) of FuzzedFileProvider from test/fuzz/util.h to test/fuzz/util.cpp. --- src/test/fuzz/util.cpp | 155 +++++++++++++++++++++++++++++++++++++++++ src/test/fuzz/util.h | 155 +++-------------------------------------- 2 files changed, 163 insertions(+), 147 deletions(-) diff --git a/src/test/fuzz/util.cpp b/src/test/fuzz/util.cpp index ece3214ed5..0d87f687d3 100644 --- a/src/test/fuzz/util.cpp +++ b/src/test/fuzz/util.cpp @@ -343,3 +343,158 @@ CTxDestination ConsumeTxDestination(FuzzedDataProvider& fuzzed_data_provider) no Assert(call_size == std::variant_size_v); return tx_destination; } + +CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx) noexcept +{ + // Avoid: + // policy/feerate.cpp:28:34: runtime error: signed integer overflow: 34873208148477500 * 1000 cannot be represented in type 'long' + // + // Reproduce using CFeeRate(348732081484775, 10).GetFeePerK() + const CAmount fee = std::min(ConsumeMoney(fuzzed_data_provider), std::numeric_limits::max() / static_cast(100000)); + assert(MoneyRange(fee)); + const int64_t time = fuzzed_data_provider.ConsumeIntegral(); + const unsigned int entry_height = fuzzed_data_provider.ConsumeIntegral(); + const bool spends_coinbase = fuzzed_data_provider.ConsumeBool(); + const unsigned int sig_op_cost = fuzzed_data_provider.ConsumeIntegralInRange(0, MAX_BLOCK_SIGOPS_COST); + return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, spends_coinbase, sig_op_cost, {}}; +} + +bool ContainsSpentInput(const CTransaction& tx, const CCoinsViewCache& inputs) noexcept +{ + for (const CTxIn& tx_in : tx.vin) { + const Coin& coin = inputs.AccessCoin(tx_in.prevout); + if (coin.IsSpent()) { + return true; + } + } + return false; +} + +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}); + CNetAddr net_addr; + if (network == Network::NET_IPV4) { + in_addr v4_addr = {}; + v4_addr.s_addr = fuzzed_data_provider.ConsumeIntegral(); + net_addr = CNetAddr{v4_addr}; + } else if (network == Network::NET_IPV6) { + if (fuzzed_data_provider.remaining_bytes() >= 16) { + in6_addr v6_addr = {}; + memcpy(v6_addr.s6_addr, fuzzed_data_provider.ConsumeBytes(16).data(), 16); + net_addr = CNetAddr{v6_addr, fuzzed_data_provider.ConsumeIntegral()}; + } + } else if (network == Network::NET_INTERNAL) { + net_addr.SetInternal(fuzzed_data_provider.ConsumeBytesAsString(32)); + } else if (network == Network::NET_ONION) { + net_addr.SetSpecial(fuzzed_data_provider.ConsumeBytesAsString(32)); + } + return net_addr; +} + +FILE* FuzzedFileProvider::open() +{ + SetFuzzedErrNo(m_fuzzed_data_provider); + if (m_fuzzed_data_provider.ConsumeBool()) { + return nullptr; + } + std::string mode; + CallOneOf( + m_fuzzed_data_provider, + [&] { + mode = "r"; + }, + [&] { + mode = "r+"; + }, + [&] { + mode = "w"; + }, + [&] { + mode = "w+"; + }, + [&] { + mode = "a"; + }, + [&] { + mode = "a+"; + }); +#if defined _GNU_SOURCE && !defined __ANDROID__ + const cookie_io_functions_t io_hooks = { + FuzzedFileProvider::read, + FuzzedFileProvider::write, + FuzzedFileProvider::seek, + FuzzedFileProvider::close, + }; + return fopencookie(this, mode.c_str(), io_hooks); +#else + (void)mode; + return nullptr; +#endif +} + +ssize_t FuzzedFileProvider::read(void* cookie, char* buf, size_t size) +{ + FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; + SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); + if (buf == nullptr || size == 0 || fuzzed_file->m_fuzzed_data_provider.ConsumeBool()) { + return fuzzed_file->m_fuzzed_data_provider.ConsumeBool() ? 0 : -1; + } + const std::vector random_bytes = fuzzed_file->m_fuzzed_data_provider.ConsumeBytes(size); + if (random_bytes.empty()) { + return 0; + } + std::memcpy(buf, random_bytes.data(), random_bytes.size()); + if (AdditionOverflow(fuzzed_file->m_offset, (int64_t)random_bytes.size())) { + return fuzzed_file->m_fuzzed_data_provider.ConsumeBool() ? 0 : -1; + } + fuzzed_file->m_offset += random_bytes.size(); + return random_bytes.size(); +} + +ssize_t FuzzedFileProvider::write(void* cookie, const char* buf, size_t size) +{ + FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; + SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); + const ssize_t n = fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(0, size); + if (AdditionOverflow(fuzzed_file->m_offset, (int64_t)n)) { + return fuzzed_file->m_fuzzed_data_provider.ConsumeBool() ? 0 : -1; + } + fuzzed_file->m_offset += n; + return n; +} + +int FuzzedFileProvider::seek(void* cookie, int64_t* offset, int whence) +{ + assert(whence == SEEK_SET || whence == SEEK_CUR || whence == SEEK_END); + FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; + SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); + int64_t new_offset = 0; + if (whence == SEEK_SET) { + new_offset = *offset; + } else if (whence == SEEK_CUR) { + if (AdditionOverflow(fuzzed_file->m_offset, *offset)) { + return -1; + } + new_offset = fuzzed_file->m_offset + *offset; + } else if (whence == SEEK_END) { + const int64_t n = fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(0, 4096); + if (AdditionOverflow(n, *offset)) { + return -1; + } + new_offset = n + *offset; + } + if (new_offset < 0) { + return -1; + } + fuzzed_file->m_offset = new_offset; + *offset = new_offset; + return fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(-1, 0); +} + +int FuzzedFileProvider::close(void* cookie) +{ + FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; + SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); + return fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(-1, 0); +} diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h index 9f09395a9a..bb017b3497 100644 --- a/src/test/fuzz/util.h +++ b/src/test/fuzz/util.h @@ -164,20 +164,7 @@ template return UintToArith256(ConsumeUInt256(fuzzed_data_provider)); } -[[nodiscard]] inline CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx) noexcept -{ - // Avoid: - // policy/feerate.cpp:28:34: runtime error: signed integer overflow: 34873208148477500 * 1000 cannot be represented in type 'long' - // - // Reproduce using CFeeRate(348732081484775, 10).GetFeePerK() - const CAmount fee = std::min(ConsumeMoney(fuzzed_data_provider), std::numeric_limits::max() / static_cast(100000)); - assert(MoneyRange(fee)); - const int64_t time = fuzzed_data_provider.ConsumeIntegral(); - const unsigned int entry_height = fuzzed_data_provider.ConsumeIntegral(); - const bool spends_coinbase = fuzzed_data_provider.ConsumeBool(); - const unsigned int sig_op_cost = fuzzed_data_provider.ConsumeIntegralInRange(0, MAX_BLOCK_SIGOPS_COST); - return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, spends_coinbase, sig_op_cost, {}}; -} +[[nodiscard]] CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx) noexcept; [[nodiscard]] CTxDestination ConsumeTxDestination(FuzzedDataProvider& fuzzed_data_provider) noexcept; @@ -215,16 +202,7 @@ template return std::numeric_limits::max() - i < j; } -[[nodiscard]] inline bool ContainsSpentInput(const CTransaction& tx, const CCoinsViewCache& inputs) noexcept -{ - for (const CTxIn& tx_in : tx.vin) { - const Coin& coin = inputs.AccessCoin(tx_in.prevout); - if (coin.IsSpent()) { - return true; - } - } - return false; -} +[[nodiscard]] bool ContainsSpentInput(const CTransaction& tx, const CCoinsViewCache& inputs) noexcept; /** * Sets errno to a value selected from the given std::array `errnos`. @@ -259,27 +237,7 @@ inline void SetFuzzedErrNo(FuzzedDataProvider& fuzzed_data_provider) noexcept return result; } -inline 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}); - CNetAddr net_addr; - if (network == Network::NET_IPV4) { - in_addr v4_addr = {}; - v4_addr.s_addr = fuzzed_data_provider.ConsumeIntegral(); - net_addr = CNetAddr{v4_addr}; - } else if (network == Network::NET_IPV6) { - if (fuzzed_data_provider.remaining_bytes() >= 16) { - in6_addr v6_addr = {}; - memcpy(v6_addr.s6_addr, fuzzed_data_provider.ConsumeBytes(16).data(), 16); - net_addr = CNetAddr{v6_addr, fuzzed_data_provider.ConsumeIntegral()}; - } - } else if (network == Network::NET_INTERNAL) { - net_addr.SetInternal(fuzzed_data_provider.ConsumeBytesAsString(32)); - } else if (network == Network::NET_ONION) { - net_addr.SetSpecial(fuzzed_data_provider.ConsumeBytesAsString(32)); - } - return net_addr; -} +CNetAddr ConsumeNetAddr(FuzzedDataProvider& fuzzed_data_provider) noexcept; inline CSubNet ConsumeSubNet(FuzzedDataProvider& fuzzed_data_provider) noexcept { @@ -329,112 +287,15 @@ public: { } - FILE* open() - { - SetFuzzedErrNo(m_fuzzed_data_provider); - if (m_fuzzed_data_provider.ConsumeBool()) { - return nullptr; - } - std::string mode; - CallOneOf( - m_fuzzed_data_provider, - [&] { - mode = "r"; - }, - [&] { - mode = "r+"; - }, - [&] { - mode = "w"; - }, - [&] { - mode = "w+"; - }, - [&] { - mode = "a"; - }, - [&] { - mode = "a+"; - }); -#if defined _GNU_SOURCE && !defined __ANDROID__ - const cookie_io_functions_t io_hooks = { - FuzzedFileProvider::read, - FuzzedFileProvider::write, - FuzzedFileProvider::seek, - FuzzedFileProvider::close, - }; - return fopencookie(this, mode.c_str(), io_hooks); -#else - (void)mode; - return nullptr; -#endif - } + FILE* open(); - static ssize_t read(void* cookie, char* buf, size_t size) - { - FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; - SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); - if (buf == nullptr || size == 0 || fuzzed_file->m_fuzzed_data_provider.ConsumeBool()) { - return fuzzed_file->m_fuzzed_data_provider.ConsumeBool() ? 0 : -1; - } - const std::vector random_bytes = fuzzed_file->m_fuzzed_data_provider.ConsumeBytes(size); - if (random_bytes.empty()) { - return 0; - } - std::memcpy(buf, random_bytes.data(), random_bytes.size()); - if (AdditionOverflow(fuzzed_file->m_offset, (int64_t)random_bytes.size())) { - return fuzzed_file->m_fuzzed_data_provider.ConsumeBool() ? 0 : -1; - } - fuzzed_file->m_offset += random_bytes.size(); - return random_bytes.size(); - } + static ssize_t read(void* cookie, char* buf, size_t size); - static ssize_t write(void* cookie, const char* buf, size_t size) - { - FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; - SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); - const ssize_t n = fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(0, size); - if (AdditionOverflow(fuzzed_file->m_offset, (int64_t)n)) { - return fuzzed_file->m_fuzzed_data_provider.ConsumeBool() ? 0 : -1; - } - fuzzed_file->m_offset += n; - return n; - } + static ssize_t write(void* cookie, const char* buf, size_t size); - static int seek(void* cookie, int64_t* offset, int whence) - { - assert(whence == SEEK_SET || whence == SEEK_CUR || whence == SEEK_END); - FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; - SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); - int64_t new_offset = 0; - if (whence == SEEK_SET) { - new_offset = *offset; - } else if (whence == SEEK_CUR) { - if (AdditionOverflow(fuzzed_file->m_offset, *offset)) { - return -1; - } - new_offset = fuzzed_file->m_offset + *offset; - } else if (whence == SEEK_END) { - const int64_t n = fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(0, 4096); - if (AdditionOverflow(n, *offset)) { - return -1; - } - new_offset = n + *offset; - } - if (new_offset < 0) { - return -1; - } - fuzzed_file->m_offset = new_offset; - *offset = new_offset; - return fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(-1, 0); - } + static int seek(void* cookie, int64_t* offset, int whence); - static int close(void* cookie) - { - FuzzedFileProvider* fuzzed_file = (FuzzedFileProvider*)cookie; - SetFuzzedErrNo(fuzzed_file->m_fuzzed_data_provider); - return fuzzed_file->m_fuzzed_data_provider.ConsumeIntegralInRange(-1, 0); - } + static int close(void* cookie); }; [[nodiscard]] inline FuzzedFileProvider ConsumeFile(FuzzedDataProvider& fuzzed_data_provider) noexcept