platform_system_vold/Volume.h
Kenny Root 344ca10856 Add in ext4 support for ASEC containers
Now forward locked applications will be in ASEC containers both internal
to the system and externally.

This change adds support for putting applications in ext4-based ASECs.

Change-Id: I8d6765b72dd2606e429c067b47a2dbcaa8bef37d
2012-04-25 14:15:15 -07:00

107 lines
3 KiB
C++

/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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 _VOLUME_H
#define _VOLUME_H
#include <utils/List.h>
class NetlinkEvent;
class VolumeManager;
class Volume {
private:
int mState;
public:
static const int State_Init = -1;
static const int State_NoMedia = 0;
static const int State_Idle = 1;
static const int State_Pending = 2;
static const int State_Checking = 3;
static const int State_Mounted = 4;
static const int State_Unmounting = 5;
static const int State_Formatting = 6;
static const int State_Shared = 7;
static const int State_SharedMnt = 8;
static const char *SECDIR;
static const char *SEC_STGDIR;
static const char *SEC_STG_SECIMGDIR;
static const char *SEC_ASECDIR_EXT;
static const char *SEC_ASECDIR_INT;
static const char *ASECDIR;
static const char *LOOPDIR;
protected:
char *mLabel;
char *mMountpoint;
VolumeManager *mVm;
bool mDebug;
int mPartIdx;
int mOrigPartIdx;
bool mRetryMount;
/*
* The major/minor tuple of the currently mounted filesystem.
*/
dev_t mCurrentlyMountedKdev;
public:
Volume(VolumeManager *vm, const char *label, const char *mount_point);
virtual ~Volume();
int mountVol();
int unmountVol(bool force, bool revert);
int formatVol();
const char *getLabel() { return mLabel; }
const char *getMountpoint() { return mMountpoint; }
int getState() { return mState; }
virtual int handleBlockEvent(NetlinkEvent *evt);
virtual dev_t getDiskDevice();
virtual dev_t getShareDevice();
virtual void handleVolumeShared();
virtual void handleVolumeUnshared();
void setDebug(bool enable);
virtual int getVolInfo(struct volume_info *v) = 0;
protected:
void setState(int state);
virtual int getDeviceNodes(dev_t *devs, int max) = 0;
virtual int updateDeviceInfo(char *new_path, int new_major, int new_minor) = 0;
virtual void revertDeviceInfo(void) = 0;
virtual int isDecrypted(void) = 0;
virtual int getFlags(void) = 0;
int createDeviceNode(const char *path, int major, int minor);
private:
int initializeMbr(const char *deviceNode);
bool isMountpointMounted(const char *path);
int createBindMounts();
int doUnmount(const char *path, bool force);
int doMoveMount(const char *src, const char *dst, bool force);
void protectFromAutorunStupidity();
};
typedef android::List<Volume *> VolumeCollection;
#endif