77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
/*
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* Copyright (C) 2020 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 ART_RUNTIME_SDK_CHECKER_H_
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#define ART_RUNTIME_SDK_CHECKER_H_
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#include "art_field.h"
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#include "art_method.h"
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#include "base/locks.h"
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#include "dex/dex_file.h"
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namespace art {
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/**
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* The SdkChecker verifies if a given symbol is present in a given classpath.
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*
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* For convenience and future extensibility the classpath is given as set of
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* dex files, simillar to a regular classpath the APKs use.
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*
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* The symbol (method, field, class) is checked based on its descriptor and not
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* according the any access check semantic.
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*
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* This class is intended to be used during off-device AOT verification when
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* only some predefined symbols should be resolved (e.g. belonging to some public
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* API classpath).
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*/
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class SdkChecker {
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public:
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// Constructs and SDK Checker from the given public sdk paths. The public_sdk
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// format is the same as the classpath format (e.g. `dex1:dex2:dex3`). The
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// method will attempt to open the dex files and if there are errors it will
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// return a nullptr and set the error_msg appropriately.
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static SdkChecker* Create(const std::string& public_sdk, std::string* error_msg);
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// Verify if it should deny access to the given methods.
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// The decision is based on whether or not any of the API dex files declares a method
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// with the same signature.
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//
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// NOTE: This is an expensive check as it searches the dex files for the necessary type
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// and string ids. This is OK because the functionality here is indended to be used
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// only in AOT verification.
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bool ShouldDenyAccess(ArtMethod* art_method) const REQUIRES_SHARED(Locks::mutator_lock_);
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// Similar to ShouldDenyAccess(ArtMethod* art_method).
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bool ShouldDenyAccess(ArtField* art_field) const REQUIRES_SHARED(Locks::mutator_lock_);
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// Similar to ShouldDenyAccess(ArtMethod* art_method).
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bool ShouldDenyAccess(const char* type_descriptor) const;
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// Enabled/Disable the checks.
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void SetEnabled(bool enabled) { enabled_ = enabled; }
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private:
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SdkChecker();
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std::vector<std::unique_ptr<const DexFile>> sdk_dex_files_;
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bool enabled_;
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};
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} // namespace art
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#endif // ART_RUNTIME_SDK_CHECKER_H_
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