139 lines
4 KiB
C++
139 lines
4 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _VOLUMEMANAGER_H
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#define _VOLUMEMANAGER_H
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#include <pthread.h>
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#ifdef __cplusplus
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#include <utils/List.h>
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#include <sysutils/SocketListener.h>
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#include "Volume.h"
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/* The length of an MD5 hash when encoded into ASCII hex characters */
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#define MD5_ASCII_LENGTH_PLUS_NULL ((MD5_DIGEST_LENGTH*2)+1)
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typedef enum { ASEC, OBB } container_type_t;
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class ContainerData {
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public:
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ContainerData(char* _id, container_type_t _type)
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: id(_id)
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, type(_type)
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{}
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~ContainerData() {
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if (id != NULL) {
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free(id);
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id = NULL;
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}
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}
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char *id;
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container_type_t type;
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};
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typedef android::List<ContainerData*> AsecIdCollection;
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class VolumeManager {
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private:
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static VolumeManager *sInstance;
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private:
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SocketListener *mBroadcaster;
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VolumeCollection *mVolumes;
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AsecIdCollection *mActiveContainers;
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bool mDebug;
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// for adjusting /proc/sys/vm/dirty_ratio when UMS is active
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int mUmsSharingCount;
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int mSavedDirtyRatio;
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int mUmsDirtyRatio;
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public:
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virtual ~VolumeManager();
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int start();
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int stop();
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void handleBlockEvent(NetlinkEvent *evt);
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int addVolume(Volume *v);
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int listVolumes(SocketClient *cli);
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int mountVolume(const char *label);
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int unmountVolume(const char *label, bool force);
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int shareVolume(const char *label, const char *method);
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int unshareVolume(const char *label, const char *method);
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int shareEnabled(const char *path, const char *method, bool *enabled);
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int formatVolume(const char *label);
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/* ASEC */
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int createAsec(const char *id, unsigned numSectors, const char *fstype,
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const char *key, int ownerUid);
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int finalizeAsec(const char *id);
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int destroyAsec(const char *id, bool force);
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int mountAsec(const char *id, const char *key, int ownerUid);
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int unmountAsec(const char *id, bool force);
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int renameAsec(const char *id1, const char *id2);
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int getAsecMountPath(const char *id, char *buffer, int maxlen);
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/* Loopback images */
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int listMountedObbs(SocketClient* cli);
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int mountObb(const char *fileName, const char *key, int ownerUid);
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int unmountObb(const char *fileName, bool force);
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int getObbMountPath(const char *id, char *buffer, int maxlen);
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/* Shared between ASEC and Loopback images */
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int unmountLoopImage(const char *containerId, const char *loopId,
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const char *fileName, const char *mountPoint, bool force);
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void setDebug(bool enable);
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// XXX: Post froyo this should be moved and cleaned up
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int cleanupAsec(Volume *v, bool force);
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void setBroadcaster(SocketListener *sl) { mBroadcaster = sl; }
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SocketListener *getBroadcaster() { return mBroadcaster; }
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static VolumeManager *Instance();
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static char *asecHash(const char *id, char *buffer, size_t len);
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Volume *lookupVolume(const char *label);
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int getNumDirectVolumes(void);
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int getDirectVolumeList(struct volume_info *vol_list);
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private:
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VolumeManager();
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void readInitialState();
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bool isMountpointMounted(const char *mp);
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};
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extern "C" {
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#endif /* __cplusplus */
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#define UNMOUNT_NOT_MOUNTED_ERR -2
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int vold_unmountVol(const char *label);
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int vold_getNumDirectVolumes(void);
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int vold_getDirectVolumeList(struct volume_info *v);
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#ifdef __cplusplus
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}
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#endif
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#endif
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