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 26 typedef android::List<char *> PathCollection; 27 28 class DirectVolume : public Volume { 29 public: 30 static const int MAX_PARTITIONS = 32; 31 protected: 32 const char* mMountpoint; 33 const char* mFuseMountpoint; 34 35 PathCollection *mPaths; 36 int mDiskMajor; 37 int mDiskMinor; 38 int mPartMinors[MAX_PARTITIONS]; 39 int mOrigDiskMajor; 40 int mOrigDiskMinor; 41 int mOrigPartMinors[MAX_PARTITIONS]; 42 int mDiskNumParts; 43 unsigned int mPendingPartMap; 44 int mIsDecrypted; 45 46 public: 47 DirectVolume(VolumeManager *vm, const fstab_rec* rec, int flags); 48 virtual ~DirectVolume(); 49 50 int addPath(const char *path); 51 52 const char *getMountpoint() { return mMountpoint; } 53 const char *getFuseMountpoint() { return mFuseMountpoint; } 54 55 int handleBlockEvent(NetlinkEvent *evt); 56 dev_t getDiskDevice(); 57 dev_t getShareDevice(); 58 void handleVolumeShared(); 59 void handleVolumeUnshared(); 60 int getVolInfo(struct volume_info *v); 61 62 protected: 63 int getDeviceNodes(dev_t *devs, int max); 64 int updateDeviceInfo(char *new_path, int new_major, int new_minor); 65 virtual void revertDeviceInfo(void); 66 int isDecrypted() { return mIsDecrypted; } 67 68 private: 69 void handleDiskAdded(const char *devpath, NetlinkEvent *evt); 70 void handleDiskRemoved(const char *devpath, NetlinkEvent *evt); 71 void handleDiskChanged(const char *devpath, NetlinkEvent *evt); 72 void handlePartitionAdded(const char *devpath, NetlinkEvent *evt); 73 void handlePartitionRemoved(const char *devpath, NetlinkEvent *evt); 74 void handlePartitionChanged(const char *devpath, NetlinkEvent *evt); 75 76 int doMountVfat(const char *deviceNode, const char *mountPoint); 77 78 }; 79 80 typedef android::List<DirectVolume *> DirectVolumeCollection; 81 82 #endif 83
