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100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
/**
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* ext2.h - devoptab file routines for EXT2/3/4-based devices.
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*
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* Copyright (c) 2010 Dimok
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*
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* This program/include file is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program/include file is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of 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 Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __EXT2_H_
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#define __EXT2_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <gctypes.h>
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#include <gccore.h>
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#include <ogc/disc_io.h>
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/* EXT2 cache options */
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#define CACHE_DEFAULT_PAGE_COUNT 8 /* The default number of pages in the cache */
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#define CACHE_DEFAULT_PAGE_SIZE 128 /* The default number of sectors per cache page */
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/* EXT2 mount flags */
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#define EXT2_FLAG_RW 0x00001 /* Open the filesystem for reading and writing. Without this flag, the filesystem is opened for reading only. */
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#define EXT2_FLAG_FORCE 0x00400 /* Open the filesystem regardless of the feature sets listed in the superblock */
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#define EXT2_FLAG_JOURNAL_DEV_OK 0x01000 /* Only open external journal devices if this flag is set (e.g. ext3/ext4) */
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#define EXT2_FLAG_64BITS 0x20000 /* Use the new style 64-Bit bitmaps. For more information see gen_bitmap64.c */
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#define EXT2_FLAG_PRINT_PROGRESS 0x40000 /* If this flag is set the progress of file operations will be printed to stdout */
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#define EXT2_FLAG_DEFAULT (EXT2_FLAG_RW | EXT2_FLAG_64BITS | EXT2_FLAG_JOURNAL_DEV_OK)
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/**
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* Find all EXT2/3/4 partitions on a block device.
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*
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* @param INTERFACE The block device to search
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* @param PARTITIONS (out) A pointer to receive the array of partition start sectors
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*
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* @return The number of entries in PARTITIONS or -1 if an error occurred (see errno)
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* @note The caller is responsible for freeing PARTITIONS when finished with it
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*/
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int ext2FindPartitions(const DISC_INTERFACE *interface, sec_t **partitions);
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/**
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* Mount a EXT2/3/4 partition from a specific sector on a block device.
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*
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* @param NAME The name to mount the device under (can then be accessed as "NAME:/")
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* @param INTERFACE The block device to mount
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* @param STARTSECTOR The sector the partition begins at
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* @param CACHEPAGECOUNT The total number of pages in the device cache
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* @param CACHEPAGESIZE The number of sectors per cache page
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* @param FLAGS Additional mounting flags (see above)
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*
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* @return True if mount was successful, false if no partition was found or an error occurred (see errno)
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*/
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bool ext2Mount(const char *name, const DISC_INTERFACE *interface, sec_t startSector, u32 cachePageCount, u32 cachePageSize, u32 flags);
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/**
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* Unmount a EXT2/3/4 partition.
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*
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* @param NAME The name of mount used in ext2Mount()
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*/
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void ext2Unmount(const char *name);
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/**
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* Get the volume name of a mounted EXT2/3/4 partition.
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*
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* @param NAME The name of mount
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*
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* @return The volumes name if successful or NULL if an error occurred (see errno)
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*/
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const char *ext2GetVolumeName (const char *name);
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/**
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* Set the volume name of a mounted EXT2/3/4 partition.
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*
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* @param NAME The name of mount
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* @param VOLUMENAME The new volume name
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*
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* @return True if mount was successful, false if an error occurred (see errno)
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* @note The mount must be write-enabled else this will fail
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*/
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bool ext2SetVolumeName (const char *name, const char *volumeName);
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#ifdef __cplusplus
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}
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#endif
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#endif
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