Initial stub of partitions.hpp
diff --git a/partitions.hpp b/partitions.hpp
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+/* Partition Management classes for TWRP
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ *
+ * The code was written from scratch by Dees_Troy dees_troy at
+ * yahoo
+ *
+ * Copyright (c) 2012
+ */
+
+#ifndef __TWRP_Partition_Manager
+#define __TWRP_Partition_Manager
+
+#include "data.hpp"
+#include <vector>
+#include <string>
+#include <map>
+
+// Partition class
+class TWPartition
+{
+public:
+ enum Backup_Method_enum {
+ NONE = 0,
+ FILES = 1,
+ DD = 2,
+ FLASH_UTILS = 3,
+ };
+
+public:
+ TWPartition();
+ virtual ~TWPartition();
+
+public:
+ virtual bool Is_Mounted(); // Checks mount to see if the partition is currently mounted
+ virtual bool Mount(bool Display_Error); // Mounts the partition if it is not mounted
+ virtual bool UnMount(bool Display_Error); // Unmounts the partition if it is mounted
+ virtual bool Wipe(); // Wipes the partition
+ virtual bool Backup(string backup_folder); // Backs up the partition to the folder specified
+ virtual bool Restore(string restore_folder); // Restores the partition using the backup folder provided
+ static string Backup_Method_By_Name(); // Returns a string of the backup method for human readable output
+ virtual bool Decrypt(string Password); // Decrypts the partition, return 0 for failure and -1 for success
+ virtual bool Wipe_Encryption(); // Ignores wipe commands for /data/media devices and formats the original block device
+ void Check_FS_Type(); // Checks the fs type using blkid, does not do anything on MTD / yaffs2 because this crashes on some devices
+
+protected:
+ bool Process_Fstab_Line(string Line); // Processes a fstab line
+
+protected:
+ bool Can_Be_Mounted; // Indicates that the partition can be mounted
+ bool Can_Be_Wiped; // Indicates that the partition can be wiped
+ bool Wipe_Available_in_GUI; // Inidcates that the wipe can be user initiated in the GUI system
+ bool Is_SubPartition; // Indicates that this partition is a sub-partition of another partition (e.g. datadata is a sub-partition of data)
+ string SubPartition_Of; // Indicates which partition is the parent partition of this partition (e.g. data is the parent partition of datadata)
+ string Symlink_Path; // Symlink path (e.g. /data/media)
+ string Symlink_Mount_Point; // /sdcard could be the symlink mount point for /data/media
+ string Mount_Point; // Mount point for this partition (e.g. /system or /data)
+ string Block_Device; // Block device (e.g. /dev/block/mmcblk1p1)
+ string Alternate_Block_Device; // Alternate block device (e.g. /dev/block/mmcblk1)
+ bool Removable; // Indicates if this partition is removable -- affects how often we check overall size, if present, etc.
+ bool Is_Present; // Indicates if the partition is currently present as a block device
+ int Length; // Used by make_ext4fs to leave free space at the end of the partition block for things like a crypto footer
+ unsigned long long Size; // Overall size of the partition
+ unsigned long long Used; // Overall used space
+ unsigned long long Free; // Overall free space
+ unsigned long long Backup_Size; // Backup size -- may be different than used space especially when /data/media is present
+ bool Can_Be_Encrypted; // This partition might be encrypted, affects error handling, can only be true if crypto support is compiled in
+ bool Is_Encrypted; // This partition is thought to be encrypted -- it wouldn't mount for some reason, only avialble with crypto support
+ bool Is_Decrypted; // This partition has successfully been decrypted
+ string Decrypted_Block_Device; // Decrypted block device available after decryption
+ string Display_Name; // Display name for the GUI
+ string Backup_Name; // Backup name -- used for backup filenames
+ Backup_Method_enum Backup_Method; // Method used for backup
+ bool Has_Data_Media // Indicates presence of /data/media, may affect wiping and backup methods
+ bool Is_Storage // Indicates if this partition is used for storage for backup, restore, and installing zips
+ string Storage_Path // Indicates the path to the storage -- root indicates mount point, media/ indicates e.g. /data/media
+ string Current_File_System // Current file system
+ string Fstab_File_System // File system from the recovery.fstab
+ int Format_Block_Size // Block size for formatting
+
+private:
+ bool Wipe_EXT23(); // Formats as ext3 or ext2
+ bool Wipe_EXT4(); // Formats using ext4, uses make_ext4fs when present
+ bool Wipe_FAT(); // Formats as FAT except that mkdosfs from busybox usually fails so oftentimes this is actually a rm -rf wipe
+ bool Wipe_YAFFS2(); // Formats as yaffs2 for MTD memory types
+ bool Wipe_RMRF(); // Uses rm -rf to wipe
+ bool Wipe_Data_Without_Wiping_Media(); // Uses rm -rf to wipe but does not wipe /data/media
+ bool Backup_Tar(string backup_folder); // Backs up using tar for file systems
+ bool Backup_DD(string backup_folder); // Backs up using dd for emmc memory types
+ bool Backup_Dump_Image(string backup_folder); // Backs up using dump_image for MTD memory types
+ bool Restore_Tar(string restore_folder); // Restore using tar for file systems
+ bool Restore_DD(string restore_folder); // Restore using dd for emmc memory types
+ bool Restore_Flash_Image(string restore_folder); // Restore using flash_image for MTD memory types
+
+friend class TWPartitionManager;
+}
+
+class TWPartitionManager
+{
+public:
+ TWPartitionManager();
+ virtual ~TWPartitionManager();
+
+public:
+ virtual int Process_Fstab(string Fstab_Filename, bool Display_Error); // Parses the fstab and populates the partitions
+ virtual int Mount_By_Path(string Path, bool Display_Error); // Mounts partition based on path (e.g. /system)
+ virtual int Mount_By_Block(string Block, bool Display_Error); // Mounts partition based on block device (e.g. /dev/block/mmcblk1p1)
+ virtual int Mount_By_Name(string Name, bool Display_Error); // Mounts partition based on display name (e.g. System)
+ virtual int UnMount_By_Path(string Path, bool Display_Error); // Unmounts partition based on path
+ virtual int UnMount_By_Block(string Block, bool Display_Error); // Unmounts partition based on block device
+ virtual int UnMount_By_Name(string Name, bool Display_Error); // Unmounts partition based on display name
+ virtual int Is_Mounted_By_Path(string Path); // Checks if partition is mounted based on path
+ virtual int Is_Mounted_By_Block(string Block); // Checks if partition is mounted based on block device
+ virtual int Is_Mounted_By_Name(string Name); // Checks if partition is mounted based on display name
+ static *Partition Find_Partition_By_Path(string Path); // Returns a pointer to a partition based on path
+ static *Partition Find_Partition_By_Block(string Block); // Returns a pointer to a partition based on block device
+ virtual int Run_Backup(string Backup_Name); // Initiates a backup in the current storage
+ virtual int Run_Restore(string Restore_Name); // Restores a backup
+ void Set_Restore_Files(string Restore_Name); // Used to gather a list of available backup partitions for the user to select for a restore
+ virtual int Wipe_By_Path(string Path); // Wipes a partition based on path
+ virtual int Wipe_By_Block(string Block); // Wipes a partition based on block device
+ virtual int Wipe_By_Name(string Name); // Wipes a partition based on display name
+ void Refresh_Sizes(); // Refreshes size data of partitions
+
+private:
+ std::vector<TWPartition*> Partitions;
+}
+
+#endif // __TWRP_Partition_Manager
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