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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef AUTOMOUNTER_GONK_H__
#define AUTOMOUNTER_GONK_H__
typedef enum {
ReadOnly,
ReadWrite,
Unknown
} MountAccess;
/**
* This class will remount the /system partition as read-write in Gonk to allow
* the updater write access. Upon destruction, /system will be remounted back to
* read-only. If something causes /system to remain read-write, this class will
* reboot the device and allow the system to mount as read-only.
*
* Code inspired from AOSP system/core/adb/remount_service.c
*/
class GonkAutoMounter
{
public:
GonkAutoMounter();
~GonkAutoMounter();
MountAccess GetAccess() const
{
return mAccess;
}
private:
bool RemountSystem(MountAccess access);
bool ForceRemountReadOnly();
bool UpdateMountStatus();
bool ProcessMount(const char *mount);
bool MountSystem(unsigned long flags);
void Reboot();
private:
char *mDevice;
MountAccess mAccess;
};
#endif // AUTOMOUNTER_GONK_H__
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