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87 lines
2.8 KiB
87 lines
2.8 KiB
/*
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* Copyright 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __VTS_PROTO_FUZZER_RUNNER_H_
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#define __VTS_PROTO_FUZZER_RUNNER_H_
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#include "ProtoFuzzerStats.h"
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#include "ProtoFuzzerUtils.h"
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#include <memory>
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namespace android {
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namespace vts {
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namespace fuzzer {
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// Describes a HIDL HAL interface.
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struct IfaceDesc {
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// VTS spec of the interface.
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const CompSpec *comp_spec_;
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// Handle to an interface instance.
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std::shared_ptr<DriverBase> hal_;
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};
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using IfaceDescTbl = std::unordered_map<std::string, IfaceDesc>;
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// Responsible for issuing function calls to the HAL and keeps track of
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// HAL-related information, e.g. which interfaces has been opened so far.
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class ProtoFuzzerRunner {
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public:
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explicit ProtoFuzzerRunner(const std::vector<CompSpec> &comp_specs,
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const std::string version_iface);
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// Initializes interface descriptor table by opening the root interface.
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void Init(const std::string &, bool);
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// Call every API from call sequence specified by the ExecSpec.
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void Execute(const ExecSpec &);
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// Execute the specified interface function call.
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void Execute(const FuncCall &);
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// Accessor to interface descriptor table containing currently opened
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// interfaces.
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const IfaceDescTbl &GetOpenedIfaces() const { return opened_ifaces_; }
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// Accessor to stats object.
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const ProtoFuzzerStats &GetStats() const { return stats_; }
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// Returns true iff there are opened interfaces that are untouched.
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bool UntouchedIfaces() const {
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return opened_ifaces_.size() > stats_.TouchedIfaces().size();
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}
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private:
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// Looks up interface spec by name.
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const CompSpec *FindCompSpec(std::string);
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// Processes return value from a function call.
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void ProcessReturnValue(const FuncSpec &result);
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// Loads the interface corresponding to the given VTS spec. Interface is
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// constructed with the given argument.
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DriverBase *LoadInterface(const CompSpec &, uint64_t);
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// Keeps track of opened interfaces.
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IfaceDescTbl opened_ifaces_;
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// All loaded VTS specs indexed by name.
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std::unordered_map<std::string, CompSpec> comp_specs_;
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// Handle to the driver library.
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void *driver_handle_;
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// Collects statistical information.
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ProtoFuzzerStats stats_;
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};
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} // namespace fuzzer
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} // namespace vts
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} // namespace android
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#endif // __VTS_PROTO_FUZZER_RUNNER_H__
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