blob: ef5ad7654a6499ad90a2c552afd3fc414db29a0f [file] [log] [blame]
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
namespace cryptohome {
class Platform;
class Service;
// This class handles recovery of encrypted data from the stateful partition.
// At present, it provides a simple way to export the encrypted data while the
// feature is maturing by checking for the existence of a file on the
// unencrypted portion of stateful.
// Once the feature has seen satisfactory airtime and all
// related tooling is robust, this class will implement a tighter mechanism
// for recovering the encrypted data in stateful that requires physical device
// modification or device owner modification:
class StatefulRecovery {
explicit StatefulRecovery(Platform *platform, Service *service);
// Returns true if recovery was requested by the device user.
virtual bool Requested();
// Returns true if it successfully recovered stateful contents.
virtual bool Recover();
// On Chrome hardware, sets the recovery request field and reboots.
virtual void PerformReboot();
static const char *kRecoverSource;
static const char *kRecoverDestination;
static const char *kRecoverBlockUsage;
static const char *kRecoverFilesystemDetails;
static const char *kFlagFile;
// Returns true if a flag file indicating a recovery request exists and
// contains the expected content.
bool ParseFlagFile();
// Copies encrypted partition details to recovery directory.
bool CopyPartitionInfo();
// Copies encrypted partition contents to recovery directory.
bool CopyPartitionContents();
// Copies the mounted user directory to recovery directory.
bool CopyUserContents();
// Versions of the recovery handler.
bool RecoverV1();
bool RecoverV2();
bool requested_;
Platform *platform_;
Service *service_;
std::string version_;
std::string user_;
std::string passkey_;
} // namespace cryptohome