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#!/bin/bash -eu
# Copyright 2016 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.
#
##############################################################################
# Create a directory for instrumented dependencies.
TOR_DEPS=${SRC}/deps
mkdir -p $TOR_DEPS
# Build libevent with proper instrumentation.
cd ${SRC}/libevent
sh autogen.sh
./configure --prefix=${TOR_DEPS} --disable-openssl
make -j$(nproc) clean
make -j$(nproc) all
make install
# Build OpenSSL with proper instrumentation.
cd ${SRC}/openssl
OPENSSL_CONFIGURE_FLAGS=""
if [[ $CFLAGS = *sanitize=memory* ]]
then
OPENSSL_CONFIGURE_FLAGS="no-asm"
fi
./config no-shared --prefix=${TOR_DEPS} \
enable-tls1_3 enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-ssl3 \
enable-ssl3-method enable-nextprotoneg enable-weak-ssl-ciphers $CFLAGS \
-fno-sanitize=alignment $OPENSSL_CONFIGURE_FLAGS
make -j$(nproc) LDCMD="$CXX $CXXFLAGS"
make install
# Build zlib with proper instrumentation,
cd ${SRC}/zlib
./configure --prefix=${TOR_DEPS}
make -j$(nproc) clean
make -j$(nproc) all
make install
# Build tor and the fuzz targets.
cd ${SRC}/tor
sh autogen.sh
# We need to run configure with leak-checking disabled, or many of the
# test functions will fail.
export ASAN_OPTIONS=detect_leaks=0
./configure --disable-asciidoc --enable-oss-fuzz --disable-memory-sentinels \
--with-libevent-dir=${SRC}/deps \
--with-openssl-dir=${SRC}/deps \
--with-zlib-dir=${SRC}/deps \
--disable-gcc-hardening \
LDFLAGS="-L${TOR_DEPS}/lib64"
make clean
make -j$(nproc) oss-fuzz-fuzzers
TORLIBS="`make show-testing-libs`"
TORLIBS="$TORLIBS -lm -Wl,-Bstatic -lssl -lcrypto -levent -lz -L${TOR_DEPS}/lib -L${TOR_DEPS}/lib64"
TORLIBS="$TORLIBS -Wl,-Bdynamic"
for fuzzer in src/test/fuzz/*.a; do
output="${fuzzer%.a}"
output="${output##*lib}"
${CXX} ${CXXFLAGS} -std=c++11 $LIB_FUZZING_ENGINE ${fuzzer} ${TORLIBS} -o ${OUT}/${output}
corpus_dir="${SRC}/tor-fuzz-corpora/${output#oss-fuzz-}"
if [ -d "${corpus_dir}" ]; then
set +x
zip -q -j ${OUT}/${output}_seed_corpus.zip ${corpus_dir}/*
set -x
fi
done
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