The ext4 implementation has been taken from U-Boot with some changes: - No global variables to allow for multiple filesystems to be mounted and multiple files to be open. - remove fs internal link following and use the barebox link implementation. - remove write support. This is incomplete in U-Boot, so I decided to skip this for now. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* (C) Copyright 2011 - 2012 Samsung Electronics
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* EXT4 filesystem implementation in Uboot by
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* Uma Shankar <uma.shankar@samsung.com>
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* Manjunatha C Achar <a.manjunatha@samsung.com>
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*
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* ext4ls and ext4load : based on ext2 ls load support in Uboot.
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*
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* (C) Copyright 2004
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* esd gmbh <www.esd-electronics.com>
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* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
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*
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* based on code from grub2 fs/ext2.c and fs/fshelp.c by
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
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*
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* ext4write : Based on generic ext4 protocol.
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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 as published by
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* 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 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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*/
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#ifndef __EXT4_COMMON__
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#define __EXT4_COMMON__
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#include <malloc.h>
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#include <errno.h>
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#include <dma.h>
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#include "ext4fs.h"
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#include "ext_common.h"
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static inline void *zalloc(size_t size)
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{
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void *p = dma_alloc(size);
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if (p)
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memset(p, 0, size);
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return p;
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}
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int ext4fs_read_inode(struct ext2_data *data, int ino,
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struct ext2_inode *inode);
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int ext4fs_read_file(struct ext2fs_node *node, int pos,
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unsigned int len, char *buf);
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int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode,
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struct ext2fs_node **foundnode, int *foundtype);
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int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name,
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struct ext2fs_node **fnode, int *ftype);
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#endif
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