90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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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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#ifndef __EXT4_COMMON__
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#define __EXT4_COMMON__
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#include <ext_common.h>
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#include <ext4fs.h>
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#include <malloc.h>
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#include <linux/errno.h>
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#if defined(CONFIG_EXT4_WRITE)
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#include "ext4_journal.h"
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#include "crc16.h"
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#endif
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#define YES 1
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#define NO 0
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#define RECOVER 1
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#define SCAN 0
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#define S_IFLNK 0120000 /* symbolic link */
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#define BLOCK_NO_ONE 1
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#define SUPERBLOCK_START (2 * 512)
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#define SUPERBLOCK_SIZE 1024
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#define F_FILE 1
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static inline void *zalloc(size_t size)
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{
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void *p = memalign(ARCH_DMA_MINALIGN, size);
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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, loff_t pos, loff_t len,
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char *buf, loff_t *actread);
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int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode,
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struct ext2fs_node **foundnode, int expecttype);
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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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#if defined(CONFIG_EXT4_WRITE)
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uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n);
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uint16_t ext4fs_checksum_update(unsigned int i);
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int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags);
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int ext4fs_update_parent_dentry(char *filename, int file_type);
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uint32_t ext4fs_get_new_blk_no(void);
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int ext4fs_get_new_inode_no(void);
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void ext4fs_reset_block_bmap(long int blockno, unsigned char *buffer,
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int index);
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int ext4fs_set_block_bmap(long int blockno, unsigned char *buffer, int index);
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int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index);
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void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index);
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int ext4fs_iget(int inode_no, struct ext2_inode *inode);
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void ext4fs_allocate_blocks(struct ext2_inode *file_inode,
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unsigned int total_remaining_blocks,
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unsigned int *total_no_of_block);
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void put_ext4(uint64_t off, void *buf, uint32_t size);
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struct ext2_block_group *ext4fs_get_group_descriptor
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(const struct ext_filesystem *fs, uint32_t bg_idx);
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uint64_t ext4fs_bg_get_block_id(const struct ext2_block_group *bg,
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const struct ext_filesystem *fs);
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uint64_t ext4fs_bg_get_inode_id(const struct ext2_block_group *bg,
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const struct ext_filesystem *fs);
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uint64_t ext4fs_bg_get_inode_table_id(const struct ext2_block_group *bg,
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const struct ext_filesystem *fs);
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uint64_t ext4fs_sb_get_free_blocks(const struct ext2_sblock *sb);
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void ext4fs_sb_set_free_blocks(struct ext2_sblock *sb, uint64_t free_blocks);
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uint32_t ext4fs_bg_get_free_blocks(const struct ext2_block_group *bg,
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const struct ext_filesystem *fs);
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#endif
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#endif
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