Dees_Troy
a13d74fc95
Add partition list GUI element and update backup, restore, mount, storage selection, and wipe sections of GUI and partition manager code to reflect the new GUI element. Update ORS engine to handle new backup and restore setup. Fix a bug with decrypt. Add 1080x1920 layout. Change-Id: Iaa2f44cb707167e66f935452f076ba00e68a2aa4
226 lines
19 KiB
C++
226 lines
19 KiB
C++
/* Partition Management classes for TWRP
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* The code was written from scratch by Dees_Troy dees_troy at
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* yahoo
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*
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* Copyright (c) 2012
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*/
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#ifndef __TWRP_Partition_Manager
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#define __TWRP_Partition_Manager
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#include <vector>
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#include <string>
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#define MAX_FSTAB_LINE_LENGTH 2048
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using namespace std;
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struct PartitionList {
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std::string Display_Name;
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std::string Mount_Point;
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unsigned int selected;
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};
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// Partition class
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class TWPartition
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{
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public:
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enum Backup_Method_enum {
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NONE = 0,
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FILES = 1,
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DD = 2,
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FLASH_UTILS = 3,
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};
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public:
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TWPartition();
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virtual ~TWPartition();
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public:
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virtual bool Is_Mounted(); // Checks mount to see if the partition is currently mounted
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virtual bool Mount(bool Display_Error); // Mounts the partition if it is not mounted
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virtual bool UnMount(bool Display_Error); // Unmounts the partition if it is mounted
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virtual bool Wipe(string New_File_System); // Wipes the partition
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virtual bool Wipe(); // Wipes the partition
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virtual bool Wipe_AndSec(); // Wipes android secure
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virtual bool Backup(string backup_folder); // Backs up the partition to the folder specified
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virtual bool Check_MD5(string restore_folder); // Checks MD5 of a backup
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virtual bool Restore(string restore_folder); // Restores the partition using the backup folder provided
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virtual string Backup_Method_By_Name(); // Returns a string of the backup method for human readable output
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virtual bool Decrypt(string Password); // Decrypts the partition, return 0 for failure and -1 for success
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virtual bool Wipe_Encryption(); // Ignores wipe commands for /data/media devices and formats the original block device
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virtual void Check_FS_Type(); // Checks the fs type using blkid, does not do anything on MTD / yaffs2 because this crashes on some devices
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virtual bool Update_Size(bool Display_Error); // Updates size information
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virtual void Recreate_Media_Folder(); // Recreates the /data/media folder
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public:
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string Current_File_System; // Current file system
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string Actual_Block_Device; // Actual block device (one of primary, alternate, or decrypted)
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string MTD_Name; // Name of the partition for MTD devices
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protected:
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bool Process_Fstab_Line(string Line, bool Display_Error); // Processes a fstab line
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void Find_Actual_Block_Device(); // Determines the correct block device and stores it in Actual_Block_Device
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protected:
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bool Can_Be_Mounted; // Indicates that the partition can be mounted
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bool Can_Be_Wiped; // Indicates that the partition can be wiped
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bool Can_Be_Backed_Up; // Indicates that the partition will show up in the backup list
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bool Wipe_During_Factory_Reset; // Indicates that this partition is wiped during a factory reset
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bool Wipe_Available_in_GUI; // Inidcates that the wipe can be user initiated in the GUI system
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bool Is_SubPartition; // Indicates that this partition is a sub-partition of another partition (e.g. datadata is a sub-partition of data)
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bool Has_SubPartition; // Indicates that this partition has a sub-partition
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string SubPartition_Of; // Indicates which partition is the parent partition of this partition (e.g. /data is the parent partition of /datadata)
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string Symlink_Path; // Symlink path (e.g. /data/media)
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string Symlink_Mount_Point; // /sdcard could be the symlink mount point for /data/media
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string Mount_Point; // Mount point for this partition (e.g. /system or /data)
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string Backup_Path; // Path for backup
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string Primary_Block_Device; // Block device (e.g. /dev/block/mmcblk1p1)
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string Alternate_Block_Device; // Alternate block device (e.g. /dev/block/mmcblk1)
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string Decrypted_Block_Device; // Decrypted block device available after decryption
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bool Removable; // Indicates if this partition is removable -- affects how often we check overall size, if present, etc.
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bool Is_Present; // Indicates if the partition is currently present as a block device
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int Length; // Used by make_ext4fs to leave free space at the end of the partition block for things like a crypto footer
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unsigned long long Size; // Overall size of the partition
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unsigned long long Used; // Overall used space
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unsigned long long Free; // Overall free space
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unsigned long long Backup_Size; // Backup size -- may be different than used space especially when /data/media is present
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bool Can_Be_Encrypted; // This partition might be encrypted, affects error handling, can only be true if crypto support is compiled in
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bool Is_Encrypted; // This partition is thought to be encrypted -- it wouldn't mount for some reason, only avialble with crypto support
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bool Is_Decrypted; // This partition has successfully been decrypted
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string Display_Name; // Display name for the GUI
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string Backup_Name; // Backup name -- used for backup filenames
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string Backup_Display_Name; // Name displayed in the partition list for backup selection
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string Storage_Name; // Name displayed in the partition list for storage selection
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string Backup_FileName; // Actual backup filename
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Backup_Method_enum Backup_Method; // Method used for backup
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bool Has_Data_Media; // Indicates presence of /data/media, may affect wiping and backup methods
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bool Has_Android_Secure; // Indicates the presence of .android_secure on this partition
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bool Is_Storage; // Indicates if this partition is used for storage for backup, restore, and installing zips
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bool Is_Settings_Storage; // Indicates that this storage partition is the location of the .twrps settings file and the location that is used for custom themes
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string Storage_Path; // Indicates the path to the storage -- root indicates mount point, media/ indicates e.g. /data/media
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string Fstab_File_System; // File system from the recovery.fstab
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int Format_Block_Size; // Block size for formatting
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bool Ignore_Blkid; // Ignore blkid results due to superblocks lying to us on certain devices / partitions
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bool Retain_Layout_Version; // Retains the .layout_version file during a wipe (needed on devices like Sony Xperia T where /data and /data/media are separate partitions)
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#ifdef TW_INCLUDE_CRYPTO_SAMSUNG
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string EcryptFS_Password; // Have to store the encryption password to remount
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#endif
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private:
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bool Process_Flags(string Flags, bool Display_Error); // Process custom fstab flags
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bool Is_File_System(string File_System); // Checks to see if the file system given is considered a file system
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bool Is_Image(string File_System); // Checks to see if the file system given is considered an image
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void Setup_File_System(bool Display_Error); // Sets defaults for a file system partition
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void Setup_Image(bool Display_Error); // Sets defaults for an image partition
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void Setup_AndSec(void); // Sets up .android_secure settings
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void Find_Real_Block_Device(string& Block_Device, bool Display_Error); // Checks the block device given and follows symlinks until it gets to the real block device
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bool Find_Partition_Size(); // Finds the partition size from /proc/partitions
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unsigned long long Get_Size_Via_du(string Path, bool Display_Error); // Uses du to get sizes
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bool Wipe_EXT23(string File_System); // Formats as ext3 or ext2
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bool Wipe_EXT4(); // Formats using ext4, uses make_ext4fs when present
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bool Wipe_FAT(); // Formats as FAT if mkdosfs exits otherwise rm -rf wipe
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bool Wipe_EXFAT(); // Formats as EXFAT
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bool Wipe_MTD(); // Formats as yaffs2 for MTD memory types
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bool Wipe_RMRF(); // Uses rm -rf to wipe
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bool Wipe_Data_Without_Wiping_Media(); // Uses rm -rf to wipe but does not wipe /data/media
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bool Backup_Tar(string backup_folder); // Backs up using tar for file systems
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bool Backup_DD(string backup_folder); // Backs up using dd for emmc memory types
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bool Backup_Dump_Image(string backup_folder); // Backs up using dump_image for MTD memory types
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bool Restore_Tar(string restore_folder, string Restore_File_System); // Restore using tar for file systems
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bool Restore_DD(string restore_folder); // Restore using dd for emmc memory types
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bool Restore_Flash_Image(string restore_folder); // Restore using flash_image for MTD memory types
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bool Get_Size_Via_statfs(bool Display_Error); // Get Partition size, used, and free space using statfs
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bool Get_Size_Via_df(bool Display_Error); // Get Partition size, used, and free space using df command
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bool Make_Dir(string Path, bool Display_Error); // Creates a directory if it doesn't already exist
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bool Find_MTD_Block_Device(string MTD_Name); // Finds the mtd block device based on the name from the fstab
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void Recreate_AndSec_Folder(void); // Recreates the .android_secure folder
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void Mount_Storage_Retry(void); // Tries multiple times with a half second delay to mount a device in case storage is slow to mount
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friend class TWPartitionManager;
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friend class DataManager;
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friend class GUIPartitionList;
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};
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class TWPartitionManager
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{
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public:
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TWPartitionManager() {}
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virtual ~TWPartitionManager() {}
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public:
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virtual int Process_Fstab(string Fstab_Filename, bool Display_Error); // Parses the fstab and populates the partitions
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virtual int Write_Fstab(); // Creates /etc/fstab file that's used by the command line for mount commands
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virtual void Output_Partition_Logging(); // Outputs partition information to the log
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virtual int Mount_By_Path(string Path, bool Display_Error); // Mounts partition based on path (e.g. /system)
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virtual int Mount_By_Block(string Block, bool Display_Error); // Mounts partition based on block device (e.g. /dev/block/mmcblk1p1)
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virtual int Mount_By_Name(string Name, bool Display_Error); // Mounts partition based on display name (e.g. System)
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virtual int UnMount_By_Path(string Path, bool Display_Error); // Unmounts partition based on path
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virtual int UnMount_By_Block(string Block, bool Display_Error); // Unmounts partition based on block device
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virtual int UnMount_By_Name(string Name, bool Display_Error); // Unmounts partition based on display name
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virtual int Is_Mounted_By_Path(string Path); // Checks if partition is mounted based on path
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virtual int Is_Mounted_By_Block(string Block); // Checks if partition is mounted based on block device
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virtual int Is_Mounted_By_Name(string Name); // Checks if partition is mounted based on display name
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virtual int Mount_Current_Storage(bool Display_Error); // Mounts the current storage location
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virtual int Mount_Settings_Storage(bool Display_Error); // Mounts the settings file storage location (usually internal)
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TWPartition* Find_Partition_By_Path(string Path); // Returns a pointer to a partition based on path
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TWPartition* Find_Partition_By_Block(string Block); // Returns a pointer to a partition based on block device
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TWPartition* Find_Partition_By_Name(string Block); // Returns a pointer to a partition based on name
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virtual int Check_Backup_Name(bool Display_Error); // Checks the current backup name to ensure that it is valid
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virtual int Run_Backup(); // Initiates a backup in the current storage
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virtual int Run_Restore(string Restore_Name); // Restores a backup
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virtual void Set_Restore_Files(string Restore_Name); // Used to gather a list of available backup partitions for the user to select for a restore
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virtual int Wipe_By_Path(string Path); // Wipes a partition based on path
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virtual int Wipe_By_Block(string Block); // Wipes a partition based on block device
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virtual int Wipe_By_Name(string Name); // Wipes a partition based on display name
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virtual int Factory_Reset(); // Performs a factory reset
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virtual int Wipe_Dalvik_Cache(); // Wipes dalvik cache
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virtual int Wipe_Rotate_Data(); // Wipes rotation data --
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virtual int Wipe_Battery_Stats(); // Wipe battery stats -- /data/system/batterystats.bin
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virtual int Wipe_Android_Secure(); // Wipes android secure
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virtual int Format_Data(); // Really formats data on /data/media devices -- also removes encryption
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virtual int Wipe_Media_From_Data(); // Removes and recreates the media folder on /data/media devices
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virtual void Refresh_Sizes(); // Refreshes size data of partitions
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virtual void Update_System_Details(); // Updates fstab, file systems, sizes, etc.
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virtual int Decrypt_Device(string Password); // Attempt to decrypt any encrypted partitions
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virtual int usb_storage_enable(void); // Enable USB storage mode
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virtual int usb_storage_disable(void); // Disable USB storage mode
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virtual void Mount_All_Storage(void); // Mounts all storage locations
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virtual void UnMount_Main_Partitions(void); // Unmounts system and data if not data/media and boot if boot is mountable
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virtual int Partition_SDCard(void); // Repartitions the sdcard
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virtual int Fix_Permissions();
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virtual void Get_Partition_List(string ListType, std::vector<PartitionList> *Partition_List);
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virtual int Fstab_Processed(); // Indicates if the fstab has been processed or not
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private:
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bool Make_MD5(bool generate_md5, string Backup_Folder, string Backup_Filename); // Generates an MD5 after a backup is made
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bool Backup_Partition(TWPartition* Part, string Backup_Folder, bool generate_md5, unsigned long long* img_bytes_remaining, unsigned long long* file_bytes_remaining, unsigned long *img_time, unsigned long *file_time, unsigned long long *img_bytes, unsigned long long *file_bytes);
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bool Restore_Partition(TWPartition* Part, string Restore_Name, int partition_count);
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void Output_Partition(TWPartition* Part);
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int Open_Lun_File(string Partition_Path, string Lun_File);
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private:
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std::vector<TWPartition*> Partitions; // Vector list of all partitions
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};
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extern TWPartitionManager PartitionManager;
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#endif // __TWRP_Partition_Manager
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