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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 _VOLUMEMANAGER_H
#define _VOLUMEMANAGER_H
#include <pthread.h>
#include <utils/List.h>
#include <sysutils/SocketListener.h>
#include "Volume.h"
/* The length of an MD5 hash when encoded into ASCII hex characters */
#define MD5_ASCII_LENGTH_PLUS_NULL ((MD5_DIGEST_LENGTH*2)+1)
typedef android::List<char *> AsecIdCollection;
class VolumeManager {
private:
static VolumeManager *sInstance;
private:
SocketListener *mBroadcaster;
VolumeCollection *mVolumes;
AsecIdCollection *mActiveContainers;
bool mUsbMassStorageEnabled;
bool mUsbConnected;
bool mDebug;
public:
virtual ~VolumeManager();
int start();
int stop();
void handleBlockEvent(NetlinkEvent *evt);
void handleSwitchEvent(NetlinkEvent *evt);
void handleUsbCompositeEvent(NetlinkEvent *evt);
int addVolume(Volume *v);
int listVolumes(SocketClient *cli);
int mountVolume(const char *label);
int unmountVolume(const char *label, bool force);
int shareVolume(const char *label, const char *method);
int unshareVolume(const char *label, const char *method);
int shareAvailable(const char *method, bool *avail);
int shareEnabled(const char *path, const char *method, bool *enabled);
int simulate(const char *cmd, const char *arg);
int formatVolume(const char *label);
/* ASEC */
int createAsec(const char *id, unsigned numSectors, const char *fstype,
const char *key, int ownerUid);
int finalizeAsec(const char *id);
int destroyAsec(const char *id, bool force);
int mountAsec(const char *id, const char *key, int ownerUid);
int unmountAsec(const char *id, bool force);
int renameAsec(const char *id1, const char *id2);
int getAsecMountPath(const char *id, char *buffer, int maxlen);
/* Loopback images */
int listMountedObbs(SocketClient* cli);
int mountObb(const char *fileName, const char *key, int ownerUid);
int unmountObb(const char *fileName, bool force);
int getObbMountPath(const char *id, char *buffer, int maxlen);
/* Shared between ASEC and Loopback images */
int unmountLoopImage(const char *containerId, const char *loopId,
const char *fileName, const char *mountPoint, bool force);
void setDebug(bool enable);
// XXX: Post froyo this should be moved and cleaned up
int cleanupAsec(Volume *v, bool force);
void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
SocketListener *getBroadcaster() { return mBroadcaster; }
static VolumeManager *Instance();
static char *asecHash(const char *id, char *buffer, size_t len);
private:
VolumeManager();
void readInitialState();
Volume *lookupVolume(const char *label);
bool isMountpointMounted(const char *mp);
inline bool massStorageAvailable() const { return mUsbMassStorageEnabled && mUsbConnected; }
void notifyUmsAvailable(bool available);
};
#endif