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|
#!/usr/bin/env bash
function in_oss_fuzz()
{
test -n "$FUZZING_ENGINE"
}
echo "Running cryptsetup OSS-Fuzz build script."
env
set -ex
PWD=$(pwd)
export LC_CTYPE=C.UTF-8
export SRC=${SRC:-$PWD/build}
export OUT="${OUT:-$PWD/out}"
export DEPS_PATH=$SRC/static_lib_deps
export PKG_CONFIG_PATH="$DEPS_PATH"/lib/pkgconfig
export CC=${CC:-clang}
export CXX=${CXX:-clang++}
export LIB_FUZZING_ENGINE="${LIB_FUZZING_ENGINE:--fsanitize=fuzzer}"
SANITIZER="${SANITIZER:-address -fsanitize-address-use-after-scope}"
flags="-O1 -fno-omit-frame-pointer -gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=$SANITIZER -fsanitize=fuzzer-no-link"
export CFLAGS="${CFLAGS:-$flags} -I$DEPS_PATH/include"
export CXXFLAGS="${CXXFLAGS:-$flags} -I$DEPS_PATH/include"
export LDFLAGS="${LDFLAGS-} -L$DEPS_PATH/lib"
ENABLED_FUZZERS=${ENABLED_FUZZERS:-crypt2_load_fuzz crypt2_load_ondisk_fuzz crypt2_load_proto_plain_json_fuzz}
mkdir -p $SRC
mkdir -p $OUT
mkdir -p $DEPS_PATH
cd $SRC
LIBFUZZER_PATCH="$PWD/unpoison-mutated-buffers-from-libfuzzer.patch"
in_oss_fuzz && LIBFUZZER_PATCH="$PWD/cryptsetup/tests/fuzz/unpoison-mutated-buffers-from-libfuzzer.patch"
in_oss_fuzz && apt-get update && apt-get install -y \
make autoconf automake autopoint libtool pkg-config \
sharutils gettext expect keyutils ninja-build \
bison flex
[ ! -d zlib ] && git clone --depth 1 https://github.com/madler/zlib.git
[ ! -d xz ] && git clone https://git.tukaani.org/xz.git
[ ! -d json-c ] && git clone --depth 1 https://github.com/json-c/json-c.git
[ ! -d lvm2 ] && git clone --depth 1 https://gitlab.com/lvmteam/lvm2
[ ! -d popt ] && git clone --depth 1 https://github.com/rpm-software-management/popt.git
# FIXME: temporary fix until libprotobuf stops shuffling C++ requirements
# [ ! -d libprotobuf-mutator ] && git clone --depth 1 https://github.com/google/libprotobuf-mutator.git \
[ ! -d libprotobuf-mutator ] && git clone --depth 1 --branch v1.1 https://github.com/google/libprotobuf-mutator.git \
&& [ "$SANITIZER" == "memory" ] && ( cd libprotobuf-mutator; patch -p1 < $LIBFUZZER_PATCH )
[ ! -d openssl ] && git clone --depth 1 https://github.com/openssl/openssl
[ ! -d util-linux ] && git clone --depth 1 https://github.com/util-linux/util-linux
[ ! -d cryptsetup_fuzzing ] && git clone --depth 1 https://gitlab.com/cryptsetup/cryptsetup_fuzzing.git
cd openssl
./Configure --prefix="$DEPS_PATH" --libdir=lib no-shared no-module no-asm
make build_generated
make -j libcrypto.a
make install_dev
cd ..
cd util-linux
./autogen.sh
./configure --prefix="$DEPS_PATH" --enable-static --disable-shared -disable-all-programs --enable-libuuid --enable-libblkid
make -j
make install
cd ..
cd zlib
./configure --prefix="$DEPS_PATH" --static
make -j
make install
cd ..
cd xz
./autogen.sh --no-po4a --no-doxygen
./configure --prefix="$DEPS_PATH" --enable-static --disable-shared --disable-ifunc --disable-sandbox
make -j
make install
cd ..
cd json-c
mkdir -p build
rm -fr build/*
cd build
cmake .. -DCMAKE_INSTALL_PREFIX="$DEPS_PATH" -DBUILD_SHARED_LIBS=OFF -DBUILD_STATIC_LIBS=ON
make -j
make install
cd ../..
cd lvm2
./configure --prefix="$DEPS_PATH" --enable-static_link --disable-udev_sync --enable-pkgconfig --disable-selinux
make -j libdm.device-mapper
make -C libdm install_static install_pkgconfig install_include
cd ..
cd popt
# --no-undefined is incompatible with sanitizers
sed -i -e 's/-Wl,--no-undefined //' src/CMakeLists.txt
# force static build of popt
sed -i 's/add_library(popt SHARED/add_library(popt STATIC/' src/CMakeLists.txt
mkdir -p build
rm -fr build/*
cd build
cmake .. -DCMAKE_INSTALL_PREFIX="$DEPS_PATH" -DBUILD_SHARED_LIBS=OFF
make -j
make install
cd ../..
cd libprotobuf-mutator
mkdir -p build
rm -fr build/*
cd build
cmake .. -GNinja \
-DCMAKE_INSTALL_PREFIX="$DEPS_PATH" \
-DPKG_CONFIG_PATH="$PKG_CONFIG_PATH" \
-DLIB_PROTO_MUTATOR_TESTING=OFF \
-DLIB_PROTO_MUTATOR_DOWNLOAD_PROTOBUF=ON
ninja
ninja install
cd external.protobuf;
cp -Rf bin lib include "$DEPS_PATH";
cd ../../..
if in_oss_fuzz; then
mkdir -p cryptsetup/tests/fuzz/build
ln -s ../../../../static_lib_deps cryptsetup/tests/fuzz/build/static_lib_deps
cd cryptsetup
else
cd ../../..
fi
./autogen.sh
./configure --enable-static --disable-asciidoc --disable-ssh-token --disable-udev --disable-selinux --with-crypto_backend=openssl --disable-shared --enable-fuzz-targets
make clean
make -j fuzz-targets
for fuzzer in $ENABLED_FUZZERS; do
cp tests/fuzz/$fuzzer $OUT
cp $SRC/cryptsetup_fuzzing/${fuzzer}_seed_corpus.zip $OUT
# optionally copy the dictionary if it exists
if [ -e tests/fuzz/${fuzzer}.dict ]; then
cp tests/fuzz/${fuzzer}.dict $OUT
fi
done
cd $PWD
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