1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/toolkit/mozapps/update/updater/automounter_gonk.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,48 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef AUTOMOUNTER_GONK_H__
1.11 +#define AUTOMOUNTER_GONK_H__
1.12 +
1.13 +typedef enum {
1.14 + ReadOnly,
1.15 + ReadWrite,
1.16 + Unknown
1.17 +} MountAccess;
1.18 +
1.19 +/**
1.20 + * This class will remount the /system partition as read-write in Gonk to allow
1.21 + * the updater write access. Upon destruction, /system will be remounted back to
1.22 + * read-only. If something causes /system to remain read-write, this class will
1.23 + * reboot the device and allow the system to mount as read-only.
1.24 + *
1.25 + * Code inspired from AOSP system/core/adb/remount_service.c
1.26 + */
1.27 +class GonkAutoMounter
1.28 +{
1.29 +public:
1.30 + GonkAutoMounter();
1.31 + ~GonkAutoMounter();
1.32 +
1.33 + const MountAccess GetAccess()
1.34 + {
1.35 + return mAccess;
1.36 + }
1.37 +
1.38 +private:
1.39 + bool RemountSystem(MountAccess access);
1.40 + bool ForceRemountReadOnly();
1.41 + bool UpdateMountStatus();
1.42 + bool ProcessMount(const char *mount);
1.43 + bool MountSystem(unsigned long flags);
1.44 + void Reboot();
1.45 +
1.46 +private:
1.47 + char *mDevice;
1.48 + MountAccess mAccess;
1.49 +};
1.50 +
1.51 +#endif // AUTOMOUNTER_GONK_H__
