mirror of
https://github.com/google/sandboxed-api.git
synced 2024-03-22 13:11:30 +08:00
66 lines
2.0 KiB
C++
66 lines
2.0 KiB
C++
// Copyright 2019 Google LLC. 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 SANDBOXED_API_SANDBOX2_UTIL_MINIELF_H_
|
|
#define SANDBOXED_API_SANDBOX2_UTIL_MINIELF_H_
|
|
|
|
#include <cstdio>
|
|
#include <memory>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "sandboxed_api/util/statusor.h"
|
|
|
|
namespace sandbox2 {
|
|
|
|
// Minimal implementation of an ELF file parser to read the program interpreter.
|
|
// Only understands 64-bit ELFs.
|
|
class ElfFile {
|
|
public:
|
|
struct Symbol {
|
|
uint64_t address;
|
|
std::string name;
|
|
};
|
|
|
|
static sapi::StatusOr<ElfFile> ParseFromFile(const std::string& filename,
|
|
uint32_t features);
|
|
|
|
int64_t file_size() const { return file_size_; }
|
|
const std::string& interpreter() const { return interpreter_; }
|
|
const std::vector<Symbol> symbols() const { return symbols_; }
|
|
const std::vector<std::string> imported_libraries() const {
|
|
return imported_libraries_;
|
|
}
|
|
bool position_independent() const { return position_independent_; }
|
|
|
|
static constexpr uint32_t kGetInterpreter = 1 << 0;
|
|
static constexpr uint32_t kLoadSymbols = 1 << 1;
|
|
static constexpr uint32_t kLoadImportedLibraries = 1 << 2;
|
|
static constexpr uint32_t kAll =
|
|
kGetInterpreter | kLoadSymbols | kLoadImportedLibraries;
|
|
|
|
private:
|
|
friend class ElfParser;
|
|
|
|
bool position_independent_;
|
|
int64_t file_size_ = 0;
|
|
std::string interpreter_;
|
|
std::vector<Symbol> symbols_;
|
|
std::vector<std::string> imported_libraries_;
|
|
};
|
|
|
|
} // namespace sandbox2
|
|
|
|
#endif // SANDBOXED_API_SANDBOX2_UTIL_MINIELF_H_
|