mirror of https://github.com/facebook/rocksdb.git
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
// Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
#pragma once
|
|
|
|
#if !defined(OS_WIN)
|
|
|
|
#include <string>
|
|
|
|
#include "env/fs_remap.h"
|
|
#include "rocksdb/file_system.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
class ChrootFileSystem : public RemapFileSystem {
|
|
public:
|
|
ChrootFileSystem(const std::shared_ptr<FileSystem>& base,
|
|
const std::string& chroot_dir);
|
|
|
|
static const char* kClassName() { return "ChrootFS"; }
|
|
const char* Name() const override { return kClassName(); }
|
|
|
|
IOStatus GetTestDirectory(const IOOptions& options, std::string* path,
|
|
IODebugContext* dbg) override;
|
|
|
|
Status PrepareOptions(const ConfigOptions& options) override;
|
|
|
|
protected:
|
|
// Returns status and expanded absolute path including the chroot directory.
|
|
// Checks whether the provided path breaks out of the chroot. If it returns
|
|
// non-OK status, the returned path should not be used.
|
|
std::pair<IOStatus, std::string> EncodePath(const std::string& path) override;
|
|
|
|
// Similar to EncodePath() except assumes the basename in the path hasn't been
|
|
// created yet.
|
|
std::pair<IOStatus, std::string> EncodePathWithNewBasename(
|
|
const std::string& path) override;
|
|
|
|
private:
|
|
std::string chroot_dir_;
|
|
};
|
|
|
|
// Returns an Env that translates paths such that the root directory appears to
|
|
// be chroot_dir. chroot_dir should refer to an existing directory.
|
|
//
|
|
// This class has not been fully analyzed for providing strong security
|
|
// guarantees.
|
|
Env* NewChrootEnv(Env* base_env, const std::string& chroot_dir);
|
|
std::shared_ptr<FileSystem> NewChrootFileSystem(
|
|
const std::shared_ptr<FileSystem>& base, const std::string& chroot_dir);
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
#endif // !defined(OS_WIN)
|