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/*
* 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;
static const char *FUSEDIR;
protected:
char *mLabel;
char *mMountpoint;
VolumeManager *mVm;
bool mDebug;
int mPartIdx;
int mOrigPartIdx;
bool mRetryMount;
int mLunNumber;
/*
* 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; }
bool isPrimaryStorage();
int getLunNumber() { return mLunNumber; }
void setLunNumber(int lunNumber);
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;
virtual int getDeviceNodes(dev_t *devs, int max) = 0;
protected:
void setState(int state);
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);
int doFuseMount(const char *src, const char *dst);
void protectFromAutorunStupidity();
};
typedef android::List<Volume *> VolumeCollection;
#endif
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