diff --git a/projects/draco/Dockerfile b/projects/draco/Dockerfile new file mode 100644 index 000000000..48bafc144 --- /dev/null +++ b/projects/draco/Dockerfile @@ -0,0 +1,22 @@ +# 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. +# +################################################################################ + +FROM gcr.io/oss-fuzz-base/base-builder +RUN apt-get update && apt-get install -y git cmake make pkg-config +RUN git clone --depth 1 https://github.com/google/draco draco +COPY build.sh $SRC/ +COPY fuzz $SRC/fuzz +WORKDIR $WORK/ diff --git a/projects/draco/build.sh b/projects/draco/build.sh new file mode 100755 index 000000000..cc534eecc --- /dev/null +++ b/projects/draco/build.sh @@ -0,0 +1,35 @@ +#!/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. +# +################################################################################ + +# build project +cmake $SRC/draco +# The draco_decoder and draco_encoder binaries don't build nicely with OSS-Fuzz +# options, so just build the Draco shared libraries. +make -j$(nproc) draco + +# build fuzzers +for fuzzer in $(find $SRC/fuzz -name '*.cc'); do + fuzzer_basename=$(basename -s .cc $fuzzer) + $CXX $CXXFLAGS \ + -I $SRC/ \ + -I $SRC/draco/src \ + -I $WORK/ \ + $LIB_FUZZING_ENGINE \ + $fuzzer \ + $WORK/libdraco.a \ + -o $OUT/$fuzzer_basename +done diff --git a/projects/draco/fuzz/draco_decoder_fuzzer.cc b/projects/draco/fuzz/draco_decoder_fuzzer.cc new file mode 100644 index 000000000..f2cd91640 --- /dev/null +++ b/projects/draco/fuzz/draco_decoder_fuzzer.cc @@ -0,0 +1,40 @@ +// Copyright 2020 Google LLC +// +// 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. + +#include + +#include "draco/src/draco/compression/decode.h" +#include "draco/src/draco/core/decoder_buffer.h" +#include "draco/src/draco/mesh/mesh.h" +#include "draco/src/draco/point_cloud/point_cloud.h" + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { + draco::DecoderBuffer buffer; + buffer.Init(reinterpret_cast(data), size); + + // Decode the input data into a geometry. We do not care about the return + // value for this test. + const auto statusor = draco::Decoder::GetEncodedGeometryType(&buffer); + if (!statusor.ok()) + return 0; + const draco::EncodedGeometryType geom_type = statusor.value(); + draco::Decoder decoder; + if (geom_type == draco::TRIANGULAR_MESH) { + decoder.DecodeMeshFromBuffer(&buffer); + } else if (geom_type == draco::POINT_CLOUD) { + decoder.DecodePointCloudFromBuffer(&buffer); + } + + return 0; +} diff --git a/projects/draco/project.yaml b/projects/draco/project.yaml new file mode 100644 index 000000000..f1f42a4ac --- /dev/null +++ b/projects/draco/project.yaml @@ -0,0 +1,3 @@ +homepage: "https://github.com/google/draco" +language: c++ +primary_contact: "fgalligan@google.com"