Merge #19143: tests: Add fuzzing harnesses for CAutoFile, CBufferedFile, LoadExternalBlockFile and other FILE* consumers

ad6c34881dc125c973b6b9ba1daa999d3141b1ae tests: Add fuzzing harness for CBlockPolicyEstimator::{Read,Write} (policy/fees.h) (practicalswift)
614e0807a8137d82832aea45e4864b424f71f698 tests: Add fuzzing harness for CBufferedFile::{SetPos,GetPos,GetType,GetVersion} (stream.h) (practicalswift)
7bcc71e5f8cdfd8ba1411c799c0726f503e52343 tests: Add fuzzing harness for LoadExternalBlockFile(...) (validation.h) (practicalswift)
98233760305a36acbd41d76aeebeada1340f6367 tests: Add fuzzing harness for CBufferedFile (streams.h) (practicalswift)
f3aa659be676a4dd0c20fe6c5cb4acd7a5b38b76 tests: Add fuzzing harness for CAutoFile (streams.h) (practicalswift)
e507c0799d759355dd0cfbe83449f0f767a7264e tests: Add serialization/deserialization fuzzing helpers WriteToStream(…)/ReadFromStream(…) (practicalswift)
e48094a506ad031d211b9dfe7639d8b3a2239788 tests: Add FuzzedAutoFileProvider which provides a CAutoFile interface to FuzzedDataProvider (practicalswift)
9dbcd6854ca05a9bd1e9a5e1222dac1758048231 tests: Add FuzzedFileProvider which provides a FILE* interface to FuzzedDataProvider using fopencookie (practicalswift)

Pull request description:

  Add fuzzing harnesses for `CAutoFile`, `CBufferedFile`, `LoadExternalBlockFile` and other `FILE*` consumers:
  * Add `FuzzedFileProvider` which provides a `FILE*` interface to `FuzzedDataProvider` using `fopencookie`
  * Add `FuzzedAutoFileProvider` which provides a `CAutoFile` interface to `FuzzedDataProvider`
  * Add serialization/deserialization fuzzing helpers `WriteToStream(…)`/`ReadFromStream(…)`
  * Add fuzzing harness for `CAutoFile` (`streams.h`)
  * Add fuzzing harness for `CBufferedFile` (`streams.h`)
  * Add fuzzing harness for `LoadExternalBlockFile(...)` (`validation.h`)
  * Add fuzzing harness for `CBlockPolicyEstimator::Read` and `CBlockPolicyEstimator::Write` (`policy/fees.h`)

  See [`doc/fuzzing.md`](https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md) for information on how to fuzz Bitcoin Core. Don't forget to contribute any coverage increasing inputs you find to the [Bitcoin Core fuzzing corpus repo](https://github.com/bitcoin-core/qa-assets).

  Happy fuzzing :)

ACKs for top commit:
  Crypt-iQ:
    Tested ACK ad6c348

Tree-SHA512: a38e142608218496796a527d7e59b74e30279a2815450408b7c27a76ed600cebc6b88491e831665a0639671e2d212453fcdca558500bbadbeb32b267751f8f72

1 files changed, 28 insertions, 0 deletions

diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index 3b51503948..637d1d2f6e 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -10,6 +10,7 @@ FUZZ_TARGETS = \
   test/fuzz/addrman_deserialize \
   test/fuzz/asmap \
   test/fuzz/asmap_direct \
+  test/fuzz/autofile \
   test/fuzz/banentry_deserialize \
   test/fuzz/banman \
   test/fuzz/base_encode_decode \
@@ -29,6 +30,7 @@ FUZZ_TARGETS = \
   test/fuzz/blockundo_deserialize \
   test/fuzz/bloom_filter \
   test/fuzz/bloomfilter_deserialize \
+  test/fuzz/buffered_file \
   test/fuzz/chain \
   test/fuzz/checkqueue \
   test/fuzz/coins_deserialize \
@@ -61,6 +63,7 @@ FUZZ_TARGETS = \
   test/fuzz/key_io \
   test/fuzz/key_origin_info_deserialize \
   test/fuzz/kitchen_sink \
+  test/fuzz/load_external_block_file \
   test/fuzz/locale \
   test/fuzz/merkle_block_deserialize \
   test/fuzz/merkleblock \
@@ -80,6 +83,7 @@ FUZZ_TARGETS = \
   test/fuzz/partial_merkle_tree_deserialize \
   test/fuzz/partially_signed_transaction_deserialize \
   test/fuzz/policy_estimator \
+  test/fuzz/policy_estimator_io \
   test/fuzz/pow \
   test/fuzz/prefilled_transaction_deserialize \
   test/fuzz/prevector \
@@ -356,6 +360,12 @@ test_fuzz_asmap_direct_LDADD = $(FUZZ_SUITE_LD_COMMON)
 test_fuzz_asmap_direct_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
 test_fuzz_asmap_direct_SOURCES = test/fuzz/asmap_direct.cpp
 
+test_fuzz_autofile_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_autofile_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_autofile_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_autofile_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_autofile_SOURCES = test/fuzz/autofile.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_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -470,6 +480,12 @@ test_fuzz_bloomfilter_deserialize_LDADD = $(FUZZ_SUITE_LD_COMMON)
 test_fuzz_bloomfilter_deserialize_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
 test_fuzz_bloomfilter_deserialize_SOURCES = test/fuzz/deserialize.cpp
 
+test_fuzz_buffered_file_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_buffered_file_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_buffered_file_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_buffered_file_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_buffered_file_SOURCES = test/fuzz/buffered_file.cpp
+
 test_fuzz_chain_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
 test_fuzz_chain_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
 test_fuzz_chain_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -662,6 +678,12 @@ test_fuzz_kitchen_sink_LDADD = $(FUZZ_SUITE_LD_COMMON)
 test_fuzz_kitchen_sink_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
 test_fuzz_kitchen_sink_SOURCES = test/fuzz/kitchen_sink.cpp
 
+test_fuzz_load_external_block_file_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_load_external_block_file_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_load_external_block_file_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_load_external_block_file_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_load_external_block_file_SOURCES = test/fuzz/load_external_block_file.cpp
+
 test_fuzz_locale_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
 test_fuzz_locale_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
 test_fuzz_locale_LDADD = $(FUZZ_SUITE_LD_COMMON)
@@ -782,6 +804,12 @@ test_fuzz_policy_estimator_LDADD = $(FUZZ_SUITE_LD_COMMON)
 test_fuzz_policy_estimator_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
 test_fuzz_policy_estimator_SOURCES = test/fuzz/policy_estimator.cpp
 
+test_fuzz_policy_estimator_io_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
+test_fuzz_policy_estimator_io_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
+test_fuzz_policy_estimator_io_LDADD = $(FUZZ_SUITE_LD_COMMON)
+test_fuzz_policy_estimator_io_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+test_fuzz_policy_estimator_io_SOURCES = test/fuzz/policy_estimator_io.cpp
+
 test_fuzz_pow_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
 test_fuzz_pow_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
 test_fuzz_pow_LDADD = $(FUZZ_SUITE_LD_COMMON)