1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef _DEVICEVOLUME_H
18#define _DEVICEVOLUME_H
19
20#include <utils/List.h>
21
22#include "Volume.h"
23
24#define MAX_PARTS 4
25
26typedef android::List<char *> PathCollection;
27
28class DirectVolume : public Volume {
29public:
30    static const int MAX_PARTITIONS = 4;
31protected:
32    PathCollection *mPaths;
33    int            mDiskMajor;
34    int            mDiskMinor;
35    int            mPartMinors[MAX_PARTITIONS];
36    int            mOrigDiskMajor;
37    int            mOrigDiskMinor;
38    int            mOrigPartMinors[MAX_PARTITIONS];
39    int            mDiskNumParts;
40    unsigned char  mPendingPartMap;
41    int            mIsDecrypted;
42    int            mFlags;
43
44public:
45    DirectVolume(VolumeManager *vm, const char *label, const char *mount_point, int partIdx);
46    virtual ~DirectVolume();
47
48    int addPath(const char *path);
49
50    int handleBlockEvent(NetlinkEvent *evt);
51    dev_t getDiskDevice();
52    dev_t getShareDevice();
53    void handleVolumeShared();
54    void handleVolumeUnshared();
55    int getVolInfo(struct volume_info *v);
56    void setFlags(int flags);
57
58protected:
59    int getDeviceNodes(dev_t *devs, int max);
60    int updateDeviceInfo(char *new_path, int new_major, int new_minor);
61    virtual void revertDeviceInfo(void);
62    int isDecrypted() { return mIsDecrypted; }
63    int getFlags() { return mFlags; }
64
65private:
66    void handleDiskAdded(const char *devpath, NetlinkEvent *evt);
67    void handleDiskRemoved(const char *devpath, NetlinkEvent *evt);
68    void handleDiskChanged(const char *devpath, NetlinkEvent *evt);
69    void handlePartitionAdded(const char *devpath, NetlinkEvent *evt);
70    void handlePartitionRemoved(const char *devpath, NetlinkEvent *evt);
71    void handlePartitionChanged(const char *devpath, NetlinkEvent *evt);
72
73    int doMountVfat(const char *deviceNode, const char *mountPoint);
74
75};
76
77typedef android::List<DirectVolume *> DirectVolumeCollection;
78
79#endif
80