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// Copyright 2017 Google Inc. All rights reserved.
//
// 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.
#ifndef SRC_LIBFUZZER_MUTATOR_H_
#define SRC_LIBFUZZER_MUTATOR_H_
#include <string>
#include "src/mutator.h"
namespace protobuf_mutator {
namespace libfuzzer {
// Overrides protobuf_mutator::Mutator::Mutate* methods with implementation
// which uses libFuzzer library. protobuf_mutator::Mutator has very basic
// implementation of this methods.
class Mutator : public protobuf_mutator::Mutator {
public:
explicit Mutator(uint32_t seed) : protobuf_mutator::Mutator(seed) {}
protected:
int32_t MutateInt32(int32_t value) override;
int64_t MutateInt64(int64_t value) override;
uint32_t MutateUInt32(uint32_t value) override;
uint64_t MutateUInt64(uint64_t value) override;
float MutateFloat(float value) override;
double MutateDouble(double value) override;
std::string MutateString(const std::string& value,
size_t size_increase_hint) override;
};
namespace internal {
size_t MutateTextMessage(uint8_t* data, size_t size, size_t max_size,
unsigned int seed, protobuf::Message* message);
size_t CrossOverTextMessages(const uint8_t* data1, size_t size1,
const uint8_t* data2, size_t size2, uint8_t* out,
size_t max_out_size, unsigned int seed,
protobuf::Message* message1,
protobuf::Message* message2);
size_t MutateBinaryMessage(uint8_t* data, size_t size, size_t max_size,
unsigned int seed, protobuf::Message* message);
size_t CrossOverBinaryMessages(const uint8_t* data1, size_t size1,
const uint8_t* data2, size_t size2, uint8_t* out,
size_t max_out_size, unsigned int seed,
protobuf::Message* message1,
protobuf::Message* message2);
} // namespace internal
// Mutates proto serialized as text.
template <class MessageType>
size_t MutateTextMessage(uint8_t* data, size_t size, size_t max_size,
unsigned int seed) {
MessageType message;
return internal::MutateTextMessage(data, size, max_size, seed, &message);
}
// Crossover two protos serialized as text.
template <class MessageType>
size_t CrossOverTextMessages(const uint8_t* data1, size_t size1,
const uint8_t* data2, size_t size2, uint8_t* out,
size_t max_out_size, unsigned int seed) {
MessageType message1;
MessageType message2;
return internal::CrossOverTextMessages(data1, size1, data2, size2, out,
max_out_size, seed, &message1,
&message2);
}
// Mutates proto serialized as binary.
template <class MessageType>
size_t MutateBinaryMessage(uint8_t* data, size_t size, size_t max_size,
unsigned int seed) {
MessageType message;
return internal::MutateBinaryMessage(data, size, max_size, seed, &message);
}
// Crossover two protos serialized as binary.
template <class MessageType>
size_t CrossOverBinaryMessages(const uint8_t* data1, size_t size1,
const uint8_t* data2, size_t size2, uint8_t* out,
size_t max_out_size, unsigned int seed) {
MessageType message1;
MessageType message2;
return internal::CrossOverBinaryMessages(data1, size1, data2, size2, out,
max_out_size, seed, &message1,
&message2);
}
} // namespace libfuzzer
} // namespace protobuf_mutator
#endif // SRC_LIBFUZZER_MUTATOR_H_
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