platform_system_vold/Volume.h
Jeff Sharkey 0de365fc0a Extract UUID and label from inserted volumes.
Uses "blkid" tool to extract metadata from an inserted volume, and
reports it up to the framework.  This needs to happen in vold, since
only the FUSE-wrapped volume is visible to userspace.

Remove autorun sanitization, since FUSE takes care of this now.

Bug: 11175082
Change-Id: Ie69b38011ad6011bfb50e40d4f35a29e02150c19
2013-10-17 09:51:19 -07:00

115 lines
3.3 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>
#include <fs_mgr.h>
class NetlinkEvent;
class VolumeManager;
class Volume {
private:
int mState;
int mFlags;
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 *MEDIA_DIR;
static const char *FUSE_DIR;
static const char *SEC_ASECDIR_EXT;
static const char *SEC_ASECDIR_INT;
static const char *ASECDIR;
static const char *LOOPDIR;
static const char *BLKID_PATH;
protected:
char* mLabel;
char* mUuid;
char* mUserLabel;
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 fstab_rec* rec, int flags);
virtual ~Volume();
int mountVol();
int unmountVol(bool force, bool revert);
int formatVol(bool wipe);
const char* getLabel() { return mLabel; }
const char* getUuid() { return mUuid; }
const char* getUserLabel() { return mUserLabel; }
int getState() { return mState; }
int getFlags() { return mFlags; };
/* Mountpoint of the raw volume */
virtual const char *getMountpoint() = 0;
virtual const char *getFuseMountpoint() = 0;
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 setUuid(const char* uuid);
void setUserLabel(const char* userLabel);
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;
int createDeviceNode(const char *path, int major, int minor);
private:
int initializeMbr(const char *deviceNode);
bool isMountpointMounted(const char *path);
int mountAsecExternal();
int doUnmount(const char *path, bool force);
int extractMetadata(const char* devicePath);
};
typedef android::List<Volume *> VolumeCollection;
#endif