192 lines
6.2 KiB
C++
Executable File
192 lines
6.2 KiB
C++
Executable File
/*
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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 _VOLUME_H
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#define _VOLUME_H
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#include <utils/List.h>
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#include <fs_mgr.h>
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class NetlinkEvent;
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class VolumeManager;
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/* $_rbox_$_modify_$_huangyonglin: added for adding a way to support the mass storage*/
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#define MAX_UDISK_PARTITIONS 32
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#define MAX_PARTITIONS_FILE_NUM 50
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#define MAX_SAME_PATITION_VOLUME_NAME_COUNTS 15
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#define UDISK_VOLUME_LABEL_PREFIX "USB_DISK"
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//macro to change android filesystem state;added by zxg
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#define CHANGE_ANDROIDFILESYSTEM_TO_READWRITE
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#define CHANGE_ANDROIDFILESYSTEM_TO_READONLY
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typedef struct {
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int imajor;
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int iminor;
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int mState;
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int iPartitionIndex;
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char ucLable[30];
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char ucMountPoint[50];
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char ucFilePathName[200];
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} UDISK_PARTITION_CONFIG;
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typedef android::List<UDISK_PARTITION_CONFIG *> UDisk_Partition_Collection;
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/* $_rbox_$_modify_$ end */
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class Volume {
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private:
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int mState;
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int mFlags;
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public:
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static const int State_Init = -1;
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static const int State_NoMedia = 0;
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static const int State_Idle = 1;
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static const int State_Pending = 2;
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static const int State_Checking = 3;
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static const int State_Mounted = 4;
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static const int State_Unmounting = 5;
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static const int State_Formatting = 6;
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static const int State_Shared = 7;
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static const int State_SharedMnt = 8;
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static const char *MEDIA_DIR;
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static const char *FUSE_DIR;
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static const char *SEC_ASECDIR_EXT;
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static const char *SEC_ASECDIR_INT;
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static const char *ASECDIR;
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static const char *LOOPDIR;
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/* $_rbox_$_modify_$_huangyonglin: added for adding a way to support the mass storage*/
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static const char *SEC_UDISK_PRATITION_DIR;
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static const char *SEC_UDISK_PRATITION_DIR_EXTERN_0;
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static const char *SEC_UDISK_PRATITION_DIR_EXTERN_1;
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static const char *SEC_UDISK_PRATITION_DIR_EXTERN_2;
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static const char *SEC_UDISK_PRATITION_DIR_EXTERN_3;
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static const char *SEC_UDISK_PRATITION_DIR_EXTERN_4;
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static const char *SEC_UDISK_PRATITION_DIR_EXTERN_5;
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static const char *SEC_UDISK_INTERNAL_DIR;
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static const char *PROP_EXTERNAL_STORAGE_STATE;
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int mDiskVolumelMinors[MAX_SAME_PATITION_VOLUME_NAME_COUNTS];
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static int mDiskVolumelNum;
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//used to create mDiskVolumeLabel
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static int sDiskVolumeLabelNum;
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/* $_rbox_$_modify_$ end */
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static const char *BLKID_PATH;
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protected:
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char* mLabel;
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char* mUuid;
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char* mUserLabel;
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VolumeManager *mVm;
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bool mDebug;
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bool mSkipAsec;
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int mPartIdx;
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int mOrigPartIdx;
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bool mRetryMount;
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/* $_rbox_$_modify_$_huangyonglin: added for adding a way to support the mass storage*/
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char *mDevPath;
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char mDiskVolumeLabel[20]; //used to show udisk volume label;added by zxg
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char mDiskMountFilePathName[100];
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UDisk_Partition_Collection *mUdiskPartition;
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/* $_rbox_$_modify_$ end */
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/*
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* The major/minor tuple of the currently mounted filesystem.
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*/
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dev_t mCurrentlyMountedKdev;
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public:
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Volume(VolumeManager *vm, const fstab_rec* rec, int flags);
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virtual ~Volume();
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int mountVol();
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int unmountVol(bool force, bool revert, bool badremove= false);
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int formatVol(bool wipe);
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const char* getLabel() { return mLabel; }
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const char* getUuid() { return mUuid; }
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const char* getUserLabel() { return mUserLabel; }
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int getState() { return mState; }
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int getFlags() { return mFlags; };
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/* Mountpoint of the raw volume */
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virtual const char *getMountpoint() = 0;
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virtual const char *getFuseMountpoint() = 0;
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/* $_rbox_$_modify_$_huangyonglin: added for adding a way to support the mass storage*/
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int addUdiskPartition(int major,int minor);
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bool addPartitionMountFile(char *FilePath);
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//to avoid the same partition volume name;added by zxg
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bool addPartitionMountFileSuffix(char *filepath);
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int RemoveUdiskPartition(const char *Mountpoint);
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int mountUdiskVol();
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int unmountUdiskVol(const char *label, bool force, bool badremove = false);
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void displayItem();
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const char *getDevPath() { return mDevPath; }
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const char *setDevPath(const char *DevPath);
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UDISK_PARTITION_CONFIG *getPartitionState(const char *lable) ;
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UDISK_PARTITION_CONFIG *getPartitionState(int major,int minor);
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/* $_rbox_$_modify_$ end */
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virtual int handleBlockEvent(NetlinkEvent *evt);
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virtual dev_t getDiskDevice();
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virtual dev_t getShareDevice();
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virtual void handleVolumeShared();
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virtual void handleVolumeUnshared();
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void setDebug(bool enable);
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virtual int getVolInfo(struct volume_info *v) = 0;
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protected:
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void setUuid(const char* uuid);
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void setUserLabel(const char* userLabel);
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void setState(int state);
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virtual int getDeviceNodes(dev_t *devs, int max) = 0;
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virtual int updateDeviceInfo(char *new_path, int new_major, int new_minor) = 0;
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virtual void revertDeviceInfo(void) = 0;
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virtual int isDecrypted(void) = 0;
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int createDeviceNode(const char *path, int major, int minor);
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/* $_rbox_$_modify_$_huangyonglin: added for adding a way to support the mass storage*/
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void setPartitionState(const char *Mountpoint,int state);
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int doUnmount(const char *path, bool force);
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bool blkid_get_Device_value(const char *tagname,const char *devname,char *pRetType);
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/* $_rbox_$_modify_$ end */
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private:
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int initializeMbr(const char *deviceNode);
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bool isMountpointMounted(const char *path);
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int mountAsecExternal();
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/* $_rbox_$_modify_$_huangyonglin: added ,because the protected funtion had add the method*/
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//int doUnmount(const char *path, bool force);
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/* $_rbox_$_modify_$ end */
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int extractMetadata(const char* devicePath);
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void notifyStateKernel(int number);
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};
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typedef android::List<Volume *> VolumeCollection;
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#endif
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