130 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			130 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
#/bin/bash -eu
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# Copyright 2020 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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#      http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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################################################################################
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# This file is for integration with Google OSS-Fuzz.
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# The following ENV variables are available when executing on OSS-fuzz:
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#
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# /out/         $OUT    Directory to store build artifacts (fuzz targets, dictionaries, options files, seed corpus archives).
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# /src/         $SRC    Directory to checkout source files.
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# /work/        $WORK   Directory to store intermediate files.
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#
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# $CC, $CXX, $CCC       The C and C++ compiler binaries.
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# $CFLAGS, $CXXFLAGS    C and C++ compiler flags.
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# $LIB_FUZZING_ENGINE   C++ compiler argument to link fuzz target against the prebuilt engine library (e.g. libFuzzer).
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# This sets the -coverpgk for the coverage report when the corpus is executed through go test
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coverpkg="github.com/ethereum/go-ethereum/..."
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function coverbuild {
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  path=$1
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  function=$2
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  fuzzer=$3
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  tags=""
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  if [[ $#  -eq 4 ]]; then
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    tags="-tags $4"
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  fi
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  cd $path
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  fuzzed_package=`pwd | rev | cut -d'/' -f 1 | rev`
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  cp $GOPATH/ossfuzz_coverage_runner.go ./"${function,,}"_test.go
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  sed -i -e 's/FuzzFunction/'$function'/' ./"${function,,}"_test.go
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  sed -i -e 's/mypackagebeingfuzzed/'$fuzzed_package'/' ./"${function,,}"_test.go
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  sed -i -e 's/TestFuzzCorpus/Test'$function'Corpus/' ./"${function,,}"_test.go
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cat << DOG > $OUT/$fuzzer
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#/bin/sh
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  cd $OUT/$path
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  go test -run Test${function}Corpus -v $tags -coverprofile \$1 -coverpkg $coverpkg
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DOG
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  chmod +x $OUT/$fuzzer
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  #echo "Built script $OUT/$fuzzer"
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  #cat $OUT/$fuzzer
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  cd -
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}
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function compile_fuzzer {
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  # Inputs:
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  # $1: The package to fuzz, within go-ethereum
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  # $2: The name of the fuzzing function
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  # $3: The name to give to the final fuzzing-binary
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  path=$GOPATH/src/github.com/ethereum/go-ethereum/$1
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  func=$2
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  fuzzer=$3
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  echo "Building $fuzzer"
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  # Do a coverage-build or a regular build
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  if [[ $SANITIZER = *coverage* ]]; then
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    coverbuild $path $func $fuzzer $coverpkg
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  else
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    (cd $path && \
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        go-fuzz -func $func -o $WORK/$fuzzer.a . && \
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        $CXX $CXXFLAGS $LIB_FUZZING_ENGINE $WORK/$fuzzer.a -o $OUT/$fuzzer)
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  fi
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  ## Check if there exists a seed corpus file
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  corpusfile="${path}/testdata/${fuzzer}_seed_corpus.zip"
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  if [ -f $corpusfile ]
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  then
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    cp $corpusfile $OUT/
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    echo "Found seed corpus: $corpusfile"
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  fi
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}
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compile_fuzzer tests/fuzzers/bitutil  Fuzz      fuzzBitutilCompress
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compile_fuzzer tests/fuzzers/bn256    FuzzAdd   fuzzBn256Add
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compile_fuzzer tests/fuzzers/bn256    FuzzMul   fuzzBn256Mul
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compile_fuzzer tests/fuzzers/bn256    FuzzPair  fuzzBn256Pair
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compile_fuzzer tests/fuzzers/runtime  Fuzz      fuzzVmRuntime
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compile_fuzzer tests/fuzzers/keystore   Fuzz fuzzKeystore
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compile_fuzzer tests/fuzzers/txfetcher  Fuzz fuzzTxfetcher
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compile_fuzzer tests/fuzzers/rlp        Fuzz fuzzRlp
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compile_fuzzer tests/fuzzers/trie       Fuzz fuzzTrie
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compile_fuzzer tests/fuzzers/stacktrie  Fuzz fuzzStackTrie
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compile_fuzzer tests/fuzzers/difficulty Fuzz fuzzDifficulty
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compile_fuzzer tests/fuzzers/abi        Fuzz fuzzAbi
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compile_fuzzer tests/fuzzers/les        Fuzz fuzzLes
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compile_fuzzer tests/fuzzers/secp256k1  Fuzz fuzzSecp256k1
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compile_fuzzer tests/fuzzers/vflux      FuzzClientPool fuzzClientPool
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compile_fuzzer tests/fuzzers/bls12381  FuzzG1Add fuzz_g1_add
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compile_fuzzer tests/fuzzers/bls12381  FuzzG1Mul fuzz_g1_mul
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compile_fuzzer tests/fuzzers/bls12381  FuzzG1MultiExp fuzz_g1_multiexp
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compile_fuzzer tests/fuzzers/bls12381  FuzzG2Add fuzz_g2_add
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compile_fuzzer tests/fuzzers/bls12381  FuzzG2Mul fuzz_g2_mul
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compile_fuzzer tests/fuzzers/bls12381  FuzzG2MultiExp fuzz_g2_multiexp
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compile_fuzzer tests/fuzzers/bls12381  FuzzPairing fuzz_pairing
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compile_fuzzer tests/fuzzers/bls12381  FuzzMapG1 fuzz_map_g1
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compile_fuzzer tests/fuzzers/bls12381  FuzzMapG2 fuzz_map_g2
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compile_fuzzer tests/fuzzers/bls12381  FuzzCrossG1Add fuzz_cross_g1_add
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compile_fuzzer tests/fuzzers/bls12381  FuzzCrossG1MultiExp fuzz_cross_g1_multiexp
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compile_fuzzer tests/fuzzers/bls12381  FuzzCrossG2Add fuzz_cross_g2_add
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compile_fuzzer tests/fuzzers/bls12381  FuzzCrossPairing fuzz_cross_pairing
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compile_fuzzer tests/fuzzers/snap  FuzzARange fuzz_account_range
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compile_fuzzer tests/fuzzers/snap  FuzzSRange fuzz_storage_range
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compile_fuzzer tests/fuzzers/snap  FuzzByteCodes fuzz_byte_codes
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compile_fuzzer tests/fuzzers/snap  FuzzTrieNodes fuzz_trie_nodes
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#TODO: move this to tests/fuzzers, if possible
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compile_fuzzer crypto/blake2b  Fuzz      fuzzBlake2b
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