/* * (C) Copyright 2011 - 2012 Samsung Electronics * EXT4 filesystem implementation in Uboot by * Uma Shankar <uma.shankar@samsung.com> * Manjunatha C Achar <a.manjunatha@samsung.com> * * ext4ls and ext4load : based on ext2 ls load support in Uboot. * * (C) Copyright 2004 * esd gmbh <www.esd-electronics.com> * Reinhard Arlt <reinhard.arlt@esd-electronics.com> * * based on code from grub2 fs/ext2.c and fs/fshelp.c by * GRUB -- GRand Unified Bootloader * Copyright (C) 2003, 2004 Free Software Foundation, Inc. * * ext4write : Based on generic ext4 protocol. * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __EXT4_COMMON__ #define __EXT4_COMMON__ #include <ext_common.h> #include <ext4fs.h> #include <malloc.h> #include <linux/errno.h> #if defined(CONFIG_EXT4_WRITE) #include "ext4_journal.h" #include "crc16.h" #endif #define YES 1 #define NO 0 #define RECOVER 1 #define SCAN 0 #define S_IFLNK 0120000 /* symbolic link */ #define BLOCK_NO_ONE 1 #define SUPERBLOCK_START (2 * 512) #define SUPERBLOCK_SIZE 1024 #define F_FILE 1 static inline void *zalloc(size_t size) { void *p = memalign(ARCH_DMA_MINALIGN, size); memset(p, 0, size); return p; } int ext4fs_read_inode(struct ext2_data *data, int ino, struct ext2_inode *inode); int ext4fs_read_file(struct ext2fs_node *node, loff_t pos, loff_t len, char *buf, loff_t *actread); int ext4fs_find_file(const char *path, struct ext2fs_node *rootnode, struct ext2fs_node **foundnode, int expecttype); int ext4fs_iterate_dir(struct ext2fs_node *dir, char *name, struct ext2fs_node **fnode, int *ftype); #if defined(CONFIG_EXT4_WRITE) uint32_t ext4fs_div_roundup(uint32_t size, uint32_t n); uint16_t ext4fs_checksum_update(unsigned int i); int ext4fs_get_parent_inode_num(const char *dirname, char *dname, int flags); int ext4fs_update_parent_dentry(char *filename, int file_type); uint32_t ext4fs_get_new_blk_no(void); int ext4fs_get_new_inode_no(void); void ext4fs_reset_block_bmap(long int blockno, unsigned char *buffer, int index); int ext4fs_set_block_bmap(long int blockno, unsigned char *buffer, int index); int ext4fs_set_inode_bmap(int inode_no, unsigned char *buffer, int index); void ext4fs_reset_inode_bmap(int inode_no, unsigned char *buffer, int index); int ext4fs_iget(int inode_no, struct ext2_inode *inode); void ext4fs_allocate_blocks(struct ext2_inode *file_inode, unsigned int total_remaining_blocks, unsigned int *total_no_of_block); void put_ext4(uint64_t off, void *buf, uint32_t size); struct ext2_block_group *ext4fs_get_group_descriptor (const struct ext_filesystem *fs, uint32_t bg_idx); uint64_t ext4fs_bg_get_block_id(const struct ext2_block_group *bg, const struct ext_filesystem *fs); uint64_t ext4fs_bg_get_inode_id(const struct ext2_block_group *bg, const struct ext_filesystem *fs); uint64_t ext4fs_bg_get_inode_table_id(const struct ext2_block_group *bg, const struct ext_filesystem *fs); uint64_t ext4fs_sb_get_free_blocks(const struct ext2_sblock *sb); void ext4fs_sb_set_free_blocks(struct ext2_sblock *sb, uint64_t free_blocks); uint32_t ext4fs_bg_get_free_blocks(const struct ext2_block_group *bg, const struct ext_filesystem *fs); #endif #endif