oss-fuzz/projects/bearssl/build.sh

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#!/bin/bash -eu
# Copyright 2020 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
# Not using OpenSSL
export CXXFLAGS="$CXXFLAGS -DCRYPTOFUZZ_NO_OPENSSL"
# Install Boost headers
cd $SRC/
tar jxf boost_1_84_0.tar.bz2
cd boost_1_84_0/
CFLAGS="" CXXFLAGS="" ./bootstrap.sh
CFLAGS="" CXXFLAGS="" ./b2 headers
cp -R boost/ /usr/include/
# Generate lookup tables. This only needs to be done once.
cd $SRC/cryptofuzz
python gen_repository.py
# Only test primitives which BearSSL supports
rm extra_options.h
echo -n '"' >>extra_options.h
echo -n '--force-module=BearSSL ' >>extra_options.h
echo -n '--digests=MD5,SHA1,SHA224,SHA256,SHA384,SHA512,MD5_SHA1,SHAKE128,SHAKE256 ' >>extra_options.h
echo -n '--ciphers=AES_128_GCM,AES_192_GCM,AES_256_GCM,AES_128_CCM,AES_192_CCM,AES_256_CCM,CHACHA20,CHACHA20_POLY1305 ' >>extra_options.h
echo -n '--operations=Digest,HMAC,SymmetricEncrypt,SymmetricDecrypt,KDF_HKDF,KDF_TLS1_PRF,ECC_GenerateKeyPair,ECC_PrivateToPublic,ECDSA_Verify,ECDSA_Sign' >>extra_options.h
echo -n '"' >>extra_options.h
# Compile BearSSL
cd $SRC/BearSSL/
sed -i '/^CC = /d' conf/Unix.mk
sed -i '/^CFLAGS = /d' conf/Unix.mk
make -j$(nproc) lib
export BEARSSL_INCLUDE_PATH=$(realpath inc/)
export LIBBEARSSL_A_PATH=$(realpath ./build/libbearssl.a)
export CXXFLAGS="$CXXFLAGS -DCRYPTOFUZZ_BEARSSL"
# Compile Cryptofuzz BearSSL module
cd $SRC/cryptofuzz/modules/bearssl
make -B
# Compile Botan
cd $SRC/botan
if [[ $CFLAGS != *-m32* ]]
then
./configure.py --cc-bin=$CXX --cc-abi-flags="$CXXFLAGS" --disable-shared --disable-modules=locking_allocator --build-targets=static --without-documentation
else
./configure.py --cpu=x86_32 --cc-bin=$CXX --cc-abi-flags="$CXXFLAGS" --disable-shared --disable-modules=locking_allocator --build-targets=static --without-documentation
fi
make -j$(nproc)
export CXXFLAGS="$CXXFLAGS -DCRYPTOFUZZ_BOTAN"
export LIBBOTAN_A_PATH="$SRC/botan/libbotan-3.a"
export BOTAN_INCLUDE_PATH="$SRC/botan/build/include"
# Compile Cryptofuzz Botan module
cd $SRC/cryptofuzz/modules/botan
make -B
# Compile Cryptofuzz
cd $SRC/cryptofuzz
LIBFUZZER_LINK="$LIB_FUZZING_ENGINE" make -B -j$(nproc) >/dev/null
# Generate dictionary
./generate_dict
# Copy fuzzer
cp $SRC/cryptofuzz/cryptofuzz $OUT/cryptofuzz-bearssl
# Copy dictionary
cp $SRC/cryptofuzz/cryptofuzz-dict.txt $OUT/cryptofuzz-bearssl.dict