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101 lines
3.2 KiB
Bash
Executable File
101 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -ex
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export LC_CTYPE=C.UTF-8
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export CC=${CC:-clang}
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export CXX=${CXX:-clang++}
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clang_version="$($CC --version | sed -nr 's/.*version ([^ ]+?) .*/\1/p' | sed -r 's/-$//')"
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SANITIZER=${SANITIZER:-address -fsanitize-address-use-after-scope}
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flags="-O1 -fno-omit-frame-pointer -g -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -fsanitize=$SANITIZER"
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clang_lib="/usr/lib64/clang/${clang_version}/lib/linux"
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[ -d "$clang_lib" ] || clang_lib="/usr/lib/clang/${clang_version}/lib/linux"
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export CFLAGS=${CFLAGS:-$flags}
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export CXXFLAGS=${CXXFLAGS:-$flags}
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export LDFLAGS=${LDFLAGS:--L${clang_lib}}
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export WORK=${WORK:-$(pwd)}
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export OUT=${OUT:-$(pwd)/out}
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mkdir -p "$OUT"
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build="$WORK/build"
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rm -rf "$build"
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mkdir -p "$build"
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if [ -z "$FUZZING_ENGINE" ]; then
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fuzzflag="llvm-fuzz=true"
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else
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fuzzflag="oss-fuzz=true"
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apt-get update
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apt-get install -y gperf m4 gettext python3-pip \
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libcap-dev libmount-dev libkmod-dev \
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pkg-config wget python3-jinja2
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# gnu-efi is installed here to enable -Dgnu-efi behind which fuzz-bcd
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# is hidden. It isn't linked against efi. It doesn't
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# even include "efi.h" because "bcd.c" can work in "unit test" mode
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# where it isn't necessary.
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apt-get install -y gnu-efi zstd
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pip3 install -r .github/workflows/requirements.txt --require-hashes
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# https://github.com/google/oss-fuzz/issues/6868
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ORIG_PYTHONPATH=$(python3 -c 'import sys;print(":".join(sys.path[1:]))')
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export PYTHONPATH="$ORIG_PYTHONPATH:/usr/lib/python3/dist-packages/"
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if [[ "$SANITIZER" == undefined ]]; then
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additional_ubsan_checks=pointer-overflow,alignment
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UBSAN_FLAGS="-fsanitize=$additional_ubsan_checks -fno-sanitize-recover=$additional_ubsan_checks"
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CFLAGS="$CFLAGS $UBSAN_FLAGS"
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CXXFLAGS="$CXXFLAGS $UBSAN_FLAGS"
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fi
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fi
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if ! meson "$build" "-D$fuzzflag" -Db_lundef=false; then
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cat "$build/meson-logs/meson-log.txt"
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exit 1
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fi
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ninja -v -C "$build" fuzzers
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# Compressed BCD files are kept in test/test-bcd so let's unpack them
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# and put them all in the seed corpus.
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bcd=$(mktemp -d)
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for i in test/test-bcd/*.zst; do
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unzstd "$i" -o "$bcd/$(basename "${i%.zst}")";
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done
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zip -jqr "$OUT/fuzz-bcd_seed_corpus.zip" "$bcd"
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rm -rf "$bcd"
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hosts=$(mktemp)
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wget -O "$hosts" https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts
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zip -jq "$OUT/fuzz-etc-hosts_seed_corpus.zip" "$hosts"
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rm -rf "$hosts"
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# The seed corpus is a separate flat archive for each fuzzer,
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# with a fixed name ${fuzzer}_seed_corpus.zip.
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for d in "$(dirname "$0")/../test/fuzz/fuzz-"*; do
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zip -jqr "$OUT/$(basename "$d")_seed_corpus.zip" "$d"
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done
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# get fuzz-dns-packet corpus
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df="$build/dns-fuzzing"
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git clone --depth 1 https://github.com/CZ-NIC/dns-fuzzing "$df"
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zip -jqr "$OUT/fuzz-dns-packet_seed_corpus.zip" "$df/packet"
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install -Dt "$OUT/src/shared/" \
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"$build"/src/shared/libsystemd-shared-*.so \
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"$build"/src/core/libsystemd-core-*.so
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wget -O "$OUT/fuzz-json.dict" https://raw.githubusercontent.com/rc0r/afl-fuzz/master/dictionaries/json.dict
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find "$build" -maxdepth 1 -type f -executable -name "fuzz-*" -exec mv {} "$OUT" \;
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find src -type f -name "fuzz-*.dict" -exec cp {} "$OUT" \;
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cp src/fuzz/*.options "$OUT"
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