diff options
| -rw-r--r-- | .travis.yml | 2 | ||||
| -rw-r--r-- | configure.ac | 10 | ||||
| -rw-r--r-- | doc/fuzzing.md | 16 | ||||
| -rw-r--r-- | src/Makefile.test.include | 396 | ||||
| -rw-r--r-- | src/test/fuzz/fuzz.cpp | 77 | ||||
| -rw-r--r-- | src/test/fuzz/fuzz.h | 17 | ||||
| -rw-r--r-- | src/test/test_bitcoin_fuzzy.cpp | 256 |
7 files changed, 531 insertions, 243 deletions
diff --git a/.travis.yml b/.travis.yml index 6181726fb6..791df9498d 100644 --- a/.travis.yml +++ b/.travis.yml @@ -97,7 +97,7 @@ jobs: PACKAGES="python3-zmq qtbase5-dev qttools5-dev-tools protobuf-compiler libdbus-1-dev libharfbuzz-dev libprotobuf-dev" DEP_OPTS="NO_QT=1 NO_UPNP=1 DEBUG=1 ALLOW_HOST_PACKAGES=1" GOAL="install" - BITCOIN_CONFIG="--enable-zmq --with-gui=qt5 --enable-glibc-back-compat --enable-reduce-exports --enable-debug CXXFLAGS=\"-g0 -O2\"" + BITCOIN_CONFIG="--enable-zmq --with-gui=qt5 --enable-fuzz --enable-glibc-back-compat --enable-reduce-exports --enable-debug CXXFLAGS=\"-g0 -O2\"" - stage: test name: 'x86_64 Linux [GOAL: install] [xenial] [no depends, only system libs, sanitizers: thread (TSan), no wallet]' diff --git a/configure.ac b/configure.ac index c4b1d63bfe..2620ed56da 100644 --- a/configure.ac +++ b/configure.ac @@ -102,7 +102,6 @@ AM_CONDITIONAL([HAVE_DOXYGEN], [test -n "$DOXYGEN"]) AC_ARG_VAR(PYTHONPATH, Augments the default search path for python module files) -# Enable wallet AC_ARG_ENABLE([wallet], [AS_HELP_STRING([--disable-wallet], [disable wallet (enabled by default)])], @@ -147,6 +146,11 @@ AC_ARG_ENABLE([extended-functional-tests], [use_extended_functional_tests=$enableval], [use_extended_functional_tests=no]) +AC_ARG_ENABLE([fuzz], + AS_HELP_STRING([--enable-fuzz],[enable building of fuzz targets (default no)]), + [enable_fuzz=$enableval], + [enable_fuzz=no]) + AC_ARG_WITH([qrencode], [AS_HELP_STRING([--with-qrencode], [enable QR code support (default is yes if qt is enabled and libqrencode is found)])], @@ -1394,6 +1398,7 @@ AM_CONDITIONAL([BUILD_DARWIN], [test x$BUILD_OS = xdarwin]) AM_CONDITIONAL([TARGET_WINDOWS], [test x$TARGET_OS = xwindows]) AM_CONDITIONAL([ENABLE_WALLET],[test x$enable_wallet = xyes]) AM_CONDITIONAL([ENABLE_TESTS],[test x$BUILD_TEST = xyes]) +AM_CONDITIONAL([ENABLE_FUZZ],[test x$enable_fuzz = xyes]) AM_CONDITIONAL([ENABLE_QT],[test x$bitcoin_enable_qt = xyes]) AM_CONDITIONAL([ENABLE_QT_TESTS],[test x$BUILD_TEST_QT = xyes]) AM_CONDITIONAL([ENABLE_BIP70],[test x$enable_bip70 = xyes]) @@ -1536,6 +1541,9 @@ if test x$bitcoin_enable_qt != xno; then fi echo " with zmq = $use_zmq" echo " with test = $use_tests" +if test x$use_tests != xno; then + echo " with fuzz = $enable_fuzz" +fi echo " with bench = $use_bench" echo " with upnp = $use_upnp" echo " use asm = $use_asm" diff --git a/doc/fuzzing.md b/doc/fuzzing.md index 23317e938e..08b73d3b3c 100644 --- a/doc/fuzzing.md +++ b/doc/fuzzing.md @@ -1,9 +1,9 @@ Fuzz-testing Bitcoin Core ========================== -A special test harness `test_bitcoin_fuzzy` is provided to provide an easy -entry point for fuzzers and the like. In this document we'll describe how to -use it with AFL and libFuzzer. +A special test harness in `src/test/fuzz/` is provided for each fuzz target to +provide an easy entry point for fuzzers and the like. In this document we'll +describe how to use it with AFL and libFuzzer. ## AFL @@ -23,10 +23,10 @@ export AFLPATH=$PWD To build Bitcoin Core using AFL instrumentation (this assumes that the `AFLPATH` was set as above): ``` -./configure --disable-ccache --disable-shared --enable-tests CC=${AFLPATH}/afl-gcc CXX=${AFLPATH}/afl-g++ +./configure --disable-ccache --disable-shared --enable-tests --enable-fuzz CC=${AFLPATH}/afl-gcc CXX=${AFLPATH}/afl-g++ export AFL_HARDEN=1 cd src/ -make test/test_bitcoin_fuzzy +make ``` We disable ccache because we don't want to pollute the ccache with instrumented objects, and similarly don't want to use non-instrumented cached objects linked @@ -35,7 +35,7 @@ in. The fuzzing can be sped up significantly (~200x) by using `afl-clang-fast` and `afl-clang-fast++` in place of `afl-gcc` and `afl-g++` when compiling. When compiling using `afl-clang-fast`/`afl-clang-fast++` the resulting -`test_bitcoin_fuzzy` binary will be instrumented in such a way that the AFL +binary will be instrumented in such a way that the AFL features "persistent mode" and "deferred forkserver" can be used. See https://github.com/mcarpenter/afl/tree/master/llvm_mode for details. @@ -63,7 +63,7 @@ Extract these (or other starting inputs) into the `inputs` directory before star To start the actual fuzzing use: ``` -$AFLPATH/afl-fuzz -i ${AFLIN} -o ${AFLOUT} -m52 -- test/test_bitcoin_fuzzy +$AFLPATH/afl-fuzz -i ${AFLIN} -o ${AFLOUT} -m52 -- test/fuzz/fuzz_target_foo ``` You may have to change a few kernel parameters to test optimally - `afl-fuzz` @@ -77,7 +77,7 @@ found in the `compiler-rt` runtime libraries package). To build the `test/test_bitcoin_fuzzy` executable run ``` -./configure --disable-ccache --with-sanitizers=fuzzer,address CC=clang CXX=clang++ +./configure --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address CC=clang CXX=clang++ make ``` diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 8ce7562434..2e1a2c7766 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -3,7 +3,33 @@ # file COPYING or http://www.opensource.org/licenses/mit-license.php. bin_PROGRAMS += test/test_bitcoin -noinst_PROGRAMS += test/test_bitcoin_fuzzy + +FUZZ_TARGETS = \ + test/fuzz/address_deserialize \ + test/fuzz/addrman_deserialize \ + test/fuzz/banentry_deserialize \ + test/fuzz/block_deserialize \ + test/fuzz/blockheader_deserialize \ + test/fuzz/blocklocator_deserialize \ + test/fuzz/blockmerkleroot \ + test/fuzz/blocktransactions_deserialize \ + test/fuzz/blocktransactionsrequest_deserialize \ + test/fuzz/blockundo_deserialize \ + test/fuzz/bloomfilter_deserialize \ + test/fuzz/coins_deserialize \ + test/fuzz/diskblockindex_deserialize \ + test/fuzz/inv_deserialize \ + test/fuzz/messageheader_deserialize \ + test/fuzz/netaddr_deserialize \ + test/fuzz/service_deserialize \ + test/fuzz/transaction_deserialize \ + test/fuzz/txoutcompressor_deserialize \ + test/fuzz/txundo_deserialize + +if ENABLE_FUZZ +noinst_PROGRAMS += $(FUZZ_TARGETS:=) +endif + TEST_SRCDIR = test TEST_BINARY=test/test_bitcoin$(EXEEXT) @@ -27,6 +53,10 @@ BITCOIN_TEST_SUITE = \ test/test_bitcoin.h \ test/test_bitcoin.cpp +FUZZ_SUITE = \ + test/fuzz/fuzz.cpp \ + test/fuzz/fuzz.h + # test_bitcoin binary # BITCOIN_TESTS =\ test/arith_uint256_tests.cpp \ @@ -138,28 +168,348 @@ test_test_bitcoin_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) -s if ENABLE_ZMQ test_test_bitcoin_LDADD += $(ZMQ_LIBS) endif -# - -# test_bitcoin_fuzzy binary # -test_test_bitcoin_fuzzy_SOURCES = test/test_bitcoin_fuzzy.cpp -test_test_bitcoin_fuzzy_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -test_test_bitcoin_fuzzy_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) -test_test_bitcoin_fuzzy_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) - -test_test_bitcoin_fuzzy_LDADD = \ - $(LIBUNIVALUE) \ - $(LIBBITCOIN_SERVER) \ - $(LIBBITCOIN_COMMON) \ - $(LIBBITCOIN_UTIL) \ - $(LIBBITCOIN_CONSENSUS) \ - $(LIBBITCOIN_CRYPTO) \ - $(LIBBITCOIN_CRYPTO_SSE41) \ - $(LIBBITCOIN_CRYPTO_AVX2) \ - $(LIBBITCOIN_CRYPTO_SHANI) \ - $(LIBSECP256K1) - -test_test_bitcoin_fuzzy_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) -# + +if ENABLE_FUZZ +test_fuzz_block_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_block_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCK_DESERIALIZE=1 +test_fuzz_block_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_block_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_block_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_block_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_transaction_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_transaction_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DTRANSACTION_DESERIALIZE=1 +test_fuzz_transaction_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_transaction_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_transaction_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_transaction_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_blocklocator_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_blocklocator_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCKLOCATOR_DESERIALIZE=1 +test_fuzz_blocklocator_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_blocklocator_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_blocklocator_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_blocklocator_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_blockmerkleroot_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_blockmerkleroot_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCKMERKLEROOT=1 +test_fuzz_blockmerkleroot_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_blockmerkleroot_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_blockmerkleroot_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_blockmerkleroot_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_addrman_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_addrman_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DADDRMAN_DESERIALIZE=1 +test_fuzz_addrman_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_addrman_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_addrman_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_addrman_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_blockheader_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_blockheader_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCKHEADER_DESERIALIZE=1 +test_fuzz_blockheader_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_blockheader_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_blockheader_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_blockheader_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_banentry_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_banentry_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBANENTRY_DESERIALIZE=1 +test_fuzz_banentry_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_banentry_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_banentry_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_banentry_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_txundo_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_txundo_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DTXUNDO_DESERIALIZE=1 +test_fuzz_txundo_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_txundo_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_txundo_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_txundo_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_blockundo_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_blockundo_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCKUNDO_DESERIALIZE=1 +test_fuzz_blockundo_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_blockundo_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_blockundo_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_blockundo_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_coins_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_coins_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DCOINS_DESERIALIZE=1 +test_fuzz_coins_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_coins_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_coins_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_coins_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_netaddr_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_netaddr_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DNETADDR_DESERIALIZE=1 +test_fuzz_netaddr_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_netaddr_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_netaddr_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_netaddr_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_service_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_service_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DSERVICE_DESERIALIZE=1 +test_fuzz_service_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_service_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_service_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_service_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_messageheader_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_messageheader_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DMESSAGEHEADER_DESERIALIZE=1 +test_fuzz_messageheader_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_messageheader_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_messageheader_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_messageheader_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_address_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_address_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DADDRESS_DESERIALIZE=1 +test_fuzz_address_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_address_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_address_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_address_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_inv_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_inv_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DINV_DESERIALIZE=1 +test_fuzz_inv_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_inv_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_inv_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_inv_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_bloomfilter_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_bloomfilter_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOOMFILTER_DESERIALIZE=1 +test_fuzz_bloomfilter_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_bloomfilter_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_bloomfilter_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_bloomfilter_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_diskblockindex_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_diskblockindex_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DDISKBLOCKINDEX_DESERIALIZE=1 +test_fuzz_diskblockindex_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_diskblockindex_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_diskblockindex_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_diskblockindex_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_txoutcompressor_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_txoutcompressor_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DTXOUTCOMPRESSOR_DESERIALIZE=1 +test_fuzz_txoutcompressor_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_txoutcompressor_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_txoutcompressor_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_txoutcompressor_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_blocktransactions_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_blocktransactions_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCKTRANSACTIONS_DESERIALIZE=1 +test_fuzz_blocktransactions_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_blocktransactions_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_blocktransactions_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_blocktransactions_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) + +test_fuzz_blocktransactionsrequest_deserialize_SOURCES = $(FUZZ_SUITE) test/test_bitcoin_fuzzy.cpp +test_fuzz_blocktransactionsrequest_deserialize_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) -DBLOCKTRANSACTIONSREQUEST_DESERIALIZE=1 +test_fuzz_blocktransactionsrequest_deserialize_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_blocktransactionsrequest_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_blocktransactionsrequest_deserialize_LDADD = \ + $(LIBUNIVALUE) \ + $(LIBBITCOIN_SERVER) \ + $(LIBBITCOIN_COMMON) \ + $(LIBBITCOIN_UTIL) \ + $(LIBBITCOIN_CONSENSUS) \ + $(LIBBITCOIN_CRYPTO) \ + $(LIBBITCOIN_CRYPTO_SSE41) \ + $(LIBBITCOIN_CRYPTO_AVX2) \ + $(LIBBITCOIN_CRYPTO_SHANI) \ + $(LIBSECP256K1) +test_fuzz_blocktransactionsrequest_deserialize_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS) +endif # ENABLE_FUZZ nodist_test_test_bitcoin_SOURCES = $(GENERATED_TEST_FILES) diff --git a/src/test/fuzz/fuzz.cpp b/src/test/fuzz/fuzz.cpp new file mode 100644 index 0000000000..0709da5563 --- /dev/null +++ b/src/test/fuzz/fuzz.cpp @@ -0,0 +1,77 @@ +// Copyright (c) 2009-2019 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 <test/fuzz/fuzz.h> + +#include <unistd.h> + +#include <pubkey.h> +#include <util/memory.h> + + +static bool read_stdin(std::vector<uint8_t>& data) +{ + uint8_t buffer[1024]; + ssize_t length = 0; + while ((length = read(STDIN_FILENO, buffer, 1024)) > 0) { + data.insert(data.end(), buffer, buffer + length); + + if (data.size() > (1 << 20)) return false; + } + return length == 0; +} + +static void initialize() +{ + const static auto verify_handle = MakeUnique<ECCVerifyHandle>(); +} + +// This function is used by libFuzzer +extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) +{ + test_one_input(std::vector<uint8_t>(data, data + size)); + return 0; +} + +// This function is used by libFuzzer +extern "C" int LLVMFuzzerInitialize(int* argc, char*** argv) +{ + initialize(); + return 0; +} + +// Disabled under WIN32 due to clash with Cygwin's WinMain. +#ifndef WIN32 +// Declare main(...) "weak" to allow for libFuzzer linking. libFuzzer provides +// the main(...) function. +__attribute__((weak)) +#endif +int main(int argc, char **argv) +{ + initialize(); +#ifdef __AFL_INIT + // Enable AFL deferred forkserver mode. Requires compilation using + // afl-clang-fast++. See fuzzing.md for details. + __AFL_INIT(); +#endif + +#ifdef __AFL_LOOP + // Enable AFL persistent mode. Requires compilation using afl-clang-fast++. + // See fuzzing.md for details. + while (__AFL_LOOP(1000)) { + std::vector<uint8_t> buffer; + if (!read_stdin(buffer)) { + continue; + } + test_one_input(buffer); + } +#else + std::vector<uint8_t> buffer; + if (!read_stdin(buffer)) { + return 0; + } + test_one_input(buffer); +#endif + return 0; +} diff --git a/src/test/fuzz/fuzz.h b/src/test/fuzz/fuzz.h new file mode 100644 index 0000000000..ad62a5faf0 --- /dev/null +++ b/src/test/fuzz/fuzz.h @@ -0,0 +1,17 @@ +// Copyright (c) 2009-2019 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_TEST_FUZZ_FUZZ_H +#define BITCOIN_TEST_FUZZ_FUZZ_H + +#include <functional> +#include <stdint.h> +#include <vector> + + +const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr; + +void test_one_input(std::vector<uint8_t> buffer); + +#endif // BITCOIN_TEST_FUZZ_FUZZ_H diff --git a/src/test/test_bitcoin_fuzzy.cpp b/src/test/test_bitcoin_fuzzy.cpp index 88c082ff66..859fba0bdc 100644 --- a/src/test/test_bitcoin_fuzzy.cpp +++ b/src/test/test_bitcoin_fuzzy.cpp @@ -2,10 +2,6 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#if defined(HAVE_CONFIG_H) -#include <config/bitcoin-config.h> -#endif - #include <addrman.h> #include <blockencodings.h> #include <chain.h> @@ -28,304 +24,144 @@ #include <memory> #include <vector> -const std::function<std::string(const char*)> G_TRANSLATION_FUN = nullptr; - -enum TEST_ID { - CBLOCK_DESERIALIZE=0, - CTRANSACTION_DESERIALIZE, - CBLOCKLOCATOR_DESERIALIZE, - CBLOCKMERKLEROOT, - CADDRMAN_DESERIALIZE, - CBLOCKHEADER_DESERIALIZE, - CBANENTRY_DESERIALIZE, - CTXUNDO_DESERIALIZE, - CBLOCKUNDO_DESERIALIZE, - CCOINS_DESERIALIZE, - CNETADDR_DESERIALIZE, - CSERVICE_DESERIALIZE, - CMESSAGEHEADER_DESERIALIZE, - CADDRESS_DESERIALIZE, - CINV_DESERIALIZE, - CBLOOMFILTER_DESERIALIZE, - CDISKBLOCKINDEX_DESERIALIZE, - CTXOUTCOMPRESSOR_DESERIALIZE, - BLOCKTRANSACTIONS_DESERIALIZE, - BLOCKTRANSACTIONSREQUEST_DESERIALIZE, - TEST_ID_END -}; - -static bool read_stdin(std::vector<uint8_t> &data) { - uint8_t buffer[1024]; - ssize_t length=0; - while((length = read(STDIN_FILENO, buffer, 1024)) > 0) { - data.insert(data.end(), buffer, buffer+length); - - if (data.size() > (1<<20)) return false; - } - return length==0; -} - -static int test_one_input(std::vector<uint8_t> buffer) { - if (buffer.size() < sizeof(uint32_t)) return 0; - - uint32_t test_id = 0xffffffff; - memcpy(&test_id, buffer.data(), sizeof(uint32_t)); - buffer.erase(buffer.begin(), buffer.begin() + sizeof(uint32_t)); - - if (test_id >= TEST_ID_END) return 0; +#include <test/fuzz/fuzz.h> +void test_one_input(std::vector<uint8_t> buffer) +{ CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION); try { int nVersion; ds >> nVersion; ds.SetVersion(nVersion); } catch (const std::ios_base::failure& e) { - return 0; + return; } - switch(test_id) { - case CBLOCK_DESERIALIZE: - { +#if BLOCK_DESERIALIZE try { CBlock block; ds >> block; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CTRANSACTION_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif TRANSACTION_DESERIALIZE try { CTransaction tx(deserialize, ds); - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CBLOCKLOCATOR_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOCKLOCATOR_DESERIALIZE try { CBlockLocator bl; ds >> bl; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CBLOCKMERKLEROOT: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOCKMERKLEROOT try { CBlock block; ds >> block; bool mutated; BlockMerkleRoot(block, &mutated); - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CADDRMAN_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif ADDRMAN_DESERIALIZE try { CAddrMan am; ds >> am; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CBLOCKHEADER_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOCKHEADER_DESERIALIZE try { CBlockHeader bh; ds >> bh; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CBANENTRY_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BANENTRY_DESERIALIZE try { CBanEntry be; ds >> be; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CTXUNDO_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif TXUNDO_DESERIALIZE try { CTxUndo tu; ds >> tu; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CBLOCKUNDO_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOCKUNDO_DESERIALIZE try { CBlockUndo bu; ds >> bu; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CCOINS_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif COINS_DESERIALIZE try { Coin coin; ds >> coin; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CNETADDR_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif NETADDR_DESERIALIZE try { CNetAddr na; ds >> na; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CSERVICE_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif SERVICE_DESERIALIZE try { CService s; ds >> s; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CMESSAGEHEADER_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif MESSAGEHEADER_DESERIALIZE CMessageHeader::MessageStartChars pchMessageStart = {0x00, 0x00, 0x00, 0x00}; try { CMessageHeader mh(pchMessageStart); ds >> mh; - if (!mh.IsValid(pchMessageStart)) {return 0;} - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CADDRESS_DESERIALIZE: - { + if (!mh.IsValid(pchMessageStart)) {return;} + } catch (const std::ios_base::failure& e) {return;} +#elif ADDRESS_DESERIALIZE try { CAddress a; ds >> a; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CINV_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif INV_DESERIALIZE try { CInv i; ds >> i; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CBLOOMFILTER_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOOMFILTER_DESERIALIZE try { CBloomFilter bf; ds >> bf; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CDISKBLOCKINDEX_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif DISKBLOCKINDEX_DESERIALIZE try { CDiskBlockIndex dbi; ds >> dbi; - } catch (const std::ios_base::failure& e) {return 0;} - break; - } - case CTXOUTCOMPRESSOR_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif TXOUTCOMPRESSOR_DESERIALIZE CTxOut to; CTxOutCompressor toc(to); try { ds >> toc; - } catch (const std::ios_base::failure& e) {return 0;} - - break; - } - case BLOCKTRANSACTIONS_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOCKTRANSACTIONS_DESERIALIZE try { BlockTransactions bt; ds >> bt; - } catch (const std::ios_base::failure& e) {return 0;} - - break; - } - case BLOCKTRANSACTIONSREQUEST_DESERIALIZE: - { + } catch (const std::ios_base::failure& e) {return;} +#elif BLOCKTRANSACTIONSREQUEST_DESERIALIZE try { BlockTransactionsRequest btr; ds >> btr; - } catch (const std::ios_base::failure& e) {return 0;} - - break; - } - default: - return 0; - } - return 0; -} - -static std::unique_ptr<ECCVerifyHandle> globalVerifyHandle; -void initialize() { - globalVerifyHandle = MakeUnique<ECCVerifyHandle>(); -} - -// This function is used by libFuzzer -extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { - test_one_input(std::vector<uint8_t>(data, data + size)); - return 0; -} - -// This function is used by libFuzzer -extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { - initialize(); - return 0; -} - -// Disabled under WIN32 due to clash with Cygwin's WinMain. -#ifndef WIN32 -// Declare main(...) "weak" to allow for libFuzzer linking. libFuzzer provides -// the main(...) function. -__attribute__((weak)) -#endif -int main(int argc, char **argv) -{ - initialize(); -#ifdef __AFL_INIT - // Enable AFL deferred forkserver mode. Requires compilation using - // afl-clang-fast++. See fuzzing.md for details. - __AFL_INIT(); -#endif - -#ifdef __AFL_LOOP - // Enable AFL persistent mode. Requires compilation using afl-clang-fast++. - // See fuzzing.md for details. - int ret = 0; - while (__AFL_LOOP(1000)) { - std::vector<uint8_t> buffer; - if (!read_stdin(buffer)) { - continue; - } - ret = test_one_input(buffer); - } - return ret; + } catch (const std::ios_base::failure& e) {return;} #else - std::vector<uint8_t> buffer; - if (!read_stdin(buffer)) { - return 0; - } - return test_one_input(buffer); +#error Need at least one fuzz target to compile #endif } |