mirror of
https://source.denx.de/u-boot/u-boot.git
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Merge branch 'ext4'
Update Makefile change for LIBS -> LIBS-y change. Conflicts: Makefile Signed-off-by: Tom Rini <trini@ti.com>
This commit is contained in:
Tom Rini
@@ -1,81 +0,0 @@
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
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*
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* (C) Copyright 2003 Sysgo Real-Time Solutions, AG <www.elinos.com>
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* Pavel Bartusek <pba@sysgo.de>
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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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* 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
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* An implementation for the Ext2FS filesystem ported from GRUB.
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* Some parts of this code (mainly the structures and defines) are
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* from the original ext2 fs code, as found in the linux kernel.
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*/
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#define SECTOR_SIZE 0x200
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#define SECTOR_BITS 9
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/* Error codes */
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typedef enum
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{
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ERR_NONE = 0,
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ERR_BAD_FILENAME,
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ERR_BAD_FILETYPE,
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ERR_BAD_GZIP_DATA,
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ERR_BAD_GZIP_HEADER,
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ERR_BAD_PART_TABLE,
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ERR_BAD_VERSION,
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ERR_BELOW_1MB,
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ERR_BOOT_COMMAND,
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ERR_BOOT_FAILURE,
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ERR_BOOT_FEATURES,
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ERR_DEV_FORMAT,
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ERR_DEV_VALUES,
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ERR_EXEC_FORMAT,
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ERR_FILELENGTH,
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ERR_FILE_NOT_FOUND,
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ERR_FSYS_CORRUPT,
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ERR_FSYS_MOUNT,
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ERR_GEOM,
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ERR_NEED_LX_KERNEL,
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ERR_NEED_MB_KERNEL,
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ERR_NO_DISK,
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ERR_NO_PART,
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ERR_NUMBER_PARSING,
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ERR_OUTSIDE_PART,
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ERR_READ,
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ERR_SYMLINK_LOOP,
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ERR_UNRECOGNIZED,
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ERR_WONT_FIT,
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ERR_WRITE,
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ERR_BAD_ARGUMENT,
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ERR_UNALIGNED,
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ERR_PRIVILEGED,
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ERR_DEV_NEED_INIT,
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ERR_NO_DISK_SPACE,
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ERR_NUMBER_OVERFLOW,
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MAX_ERR_NUM
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} ext2fs_error_t;
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extern int ext2fs_set_blk_dev(block_dev_desc_t *rbdd, int part);
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extern int ext2fs_ls (const char *dirname);
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extern int ext2fs_open (const char *filename);
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extern int ext2fs_read (char *buf, unsigned len);
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extern int ext2fs_mount (unsigned part_length);
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extern int ext2fs_close(void);
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144
include/ext4fs.h
Normal file
144
include/ext4fs.h
Normal file
@@ -0,0 +1,144 @@
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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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* Ext4 Extent data structures are taken from original ext4 fs code
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* as found in the linux kernel.
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*
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* Copyright (c) 2003-2006, Cluster File Systems, Inc, info@clusterfs.com
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* Written by Alex Tomas <alex@clusterfs.com>
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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 version 2 as
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* published by the Free Software Foundation.
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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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* 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
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __EXT4__
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#define __EXT4__
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#include <ext_common.h>
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#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
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#define EXT4_EXT_MAGIC 0xf30a
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#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
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#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040
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#define EXT4_INDIRECT_BLOCKS 12
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#define EXT4_BG_INODE_UNINIT 0x0001
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#define EXT4_BG_BLOCK_UNINIT 0x0002
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#define EXT4_BG_INODE_ZEROED 0x0004
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/*
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* ext4_inode has i_block array (60 bytes total).
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* The first 12 bytes store ext4_extent_header;
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* the remainder stores an array of ext4_extent.
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*/
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/*
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* This is the extent on-disk structure.
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* It's used at the bottom of the tree.
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*/
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struct ext4_extent {
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__le32 ee_block; /* first logical block extent covers */
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__le16 ee_len; /* number of blocks covered by extent */
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__le16 ee_start_hi; /* high 16 bits of physical block */
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__le32 ee_start_lo; /* low 32 bits of physical block */
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};
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/*
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* This is index on-disk structure.
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* It's used at all the levels except the bottom.
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*/
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struct ext4_extent_idx {
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__le32 ei_block; /* index covers logical blocks from 'block' */
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__le32 ei_leaf_lo; /* pointer to the physical block of the next *
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* level. leaf or next index could be there */
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__le16 ei_leaf_hi; /* high 16 bits of physical block */
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__u16 ei_unused;
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};
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/* Each block (leaves and indexes), even inode-stored has header. */
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struct ext4_extent_header {
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__le16 eh_magic; /* probably will support different formats */
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__le16 eh_entries; /* number of valid entries */
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__le16 eh_max; /* capacity of store in entries */
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__le16 eh_depth; /* has tree real underlying blocks? */
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__le32 eh_generation; /* generation of the tree */
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};
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struct ext_filesystem {
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/* Total Sector of partition */
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uint64_t total_sect;
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/* Block size of partition */
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uint32_t blksz;
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/* Inode size of partition */
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uint32_t inodesz;
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/* Sectors per Block */
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uint32_t sect_perblk;
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/* Group Descriptor Block Number */
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uint32_t gdtable_blkno;
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/* Total block groups of partition */
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uint32_t no_blkgrp;
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/* No of blocks required for bgdtable */
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uint32_t no_blk_pergdt;
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/* Superblock */
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struct ext2_sblock *sb;
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/* Block group descritpor table */
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struct ext2_block_group *gd;
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char *gdtable;
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/* Block Bitmap Related */
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unsigned char **blk_bmaps;
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long int curr_blkno;
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uint16_t first_pass_bbmap;
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/* Inode Bitmap Related */
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unsigned char **inode_bmaps;
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int curr_inode_no;
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uint16_t first_pass_ibmap;
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/* Journal Related */
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/* Block Device Descriptor */
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block_dev_desc_t *dev_desc;
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};
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extern block_dev_desc_t *ext4_dev_desc;
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extern struct ext2_data *ext4fs_root;
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extern struct ext2fs_node *ext4fs_file;
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#if defined(CONFIG_CMD_EXT4_WRITE)
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extern struct ext2_inode *g_parent_inode;
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extern int gd_index;
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extern int gindex;
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int ext4fs_init(void);
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void ext4fs_deinit(void);
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int ext4fs_filename_check(char *filename);
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int ext4fs_write(const char *fname, unsigned char *buffer,
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unsigned long sizebytes);
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#endif
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struct ext_filesystem *get_fs(void);
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int init_fs(block_dev_desc_t *dev_desc);
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void deinit_fs(block_dev_desc_t *dev_desc);
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int ext4fs_open(const char *filename);
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int ext4fs_read(char *buf, unsigned len);
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int ext4fs_mount(unsigned part_length);
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void ext4fs_close(void);
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int ext4fs_ls(const char *dirname);
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void ext4fs_free_node(struct ext2fs_node *node, struct ext2fs_node *currroot);
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int ext4fs_devread(int sector, int byte_offset, int byte_len, char *buf);
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int ext4fs_set_blk_dev(block_dev_desc_t *rbdd, int part);
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long int read_allocated_block(struct ext2_inode *inode, int fileblock);
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#endif
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199
include/ext_common.h
Normal file
199
include/ext_common.h
Normal file
@@ -0,0 +1,199 @@
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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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* Data structures and headers for ext4 support have been taken from
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* 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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* 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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* 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
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __EXT_COMMON__
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#define __EXT_COMMON__
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#include <command.h>
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#define SECTOR_SIZE 0x200
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#define SECTOR_BITS 9
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/* Magic value used to identify an ext2 filesystem. */
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#define EXT2_MAGIC 0xEF53
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/* Amount of indirect blocks in an inode. */
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#define INDIRECT_BLOCKS 12
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/* Maximum lenght of a pathname. */
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#define EXT2_PATH_MAX 4096
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/* Maximum nesting of symlinks, used to prevent a loop. */
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#define EXT2_MAX_SYMLINKCNT 8
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/* Filetype used in directory entry. */
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#define FILETYPE_UNKNOWN 0
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#define FILETYPE_REG 1
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#define FILETYPE_DIRECTORY 2
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#define FILETYPE_SYMLINK 7
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/* Filetype information as used in inodes. */
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#define FILETYPE_INO_MASK 0170000
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#define FILETYPE_INO_REG 0100000
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#define FILETYPE_INO_DIRECTORY 0040000
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#define FILETYPE_INO_SYMLINK 0120000
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#define EXT2_ROOT_INO 2 /* Root inode */
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/* Bits used as offset in sector */
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#define DISK_SECTOR_BITS 9
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/* The size of an ext2 block in bytes. */
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#define EXT2_BLOCK_SIZE(data) (1 << LOG2_BLOCK_SIZE(data))
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/* Log2 size of ext2 block in 512 blocks. */
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#define LOG2_EXT2_BLOCK_SIZE(data) (__le32_to_cpu \
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(data->sblock.log2_block_size) + 1)
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/* Log2 size of ext2 block in bytes. */
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#define LOG2_BLOCK_SIZE(data) (__le32_to_cpu \
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(data->sblock.log2_block_size) + 10)
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#define INODE_SIZE_FILESYSTEM(data) (__le32_to_cpu \
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(data->sblock.inode_size))
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#define EXT2_FT_DIR 2
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#define SUCCESS 1
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/* Macro-instructions used to manage several block sizes */
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#define EXT2_MIN_BLOCK_LOG_SIZE 10 /* 1024 */
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#define EXT2_MAX_BLOCK_LOG_SIZE 16 /* 65536 */
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#define EXT2_MIN_BLOCK_SIZE (1 << EXT2_MIN_BLOCK_LOG_SIZE)
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#define EXT2_MAX_BLOCK_SIZE (1 << EXT2_MAX_BLOCK_LOG_SIZE)
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/* The ext2 superblock. */
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struct ext2_sblock {
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uint32_t total_inodes;
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uint32_t total_blocks;
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uint32_t reserved_blocks;
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uint32_t free_blocks;
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uint32_t free_inodes;
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uint32_t first_data_block;
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uint32_t log2_block_size;
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uint32_t log2_fragment_size;
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uint32_t blocks_per_group;
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uint32_t fragments_per_group;
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uint32_t inodes_per_group;
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uint32_t mtime;
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uint32_t utime;
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uint16_t mnt_count;
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uint16_t max_mnt_count;
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uint16_t magic;
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uint16_t fs_state;
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uint16_t error_handling;
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uint16_t minor_revision_level;
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uint32_t lastcheck;
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uint32_t checkinterval;
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uint32_t creator_os;
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uint32_t revision_level;
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uint16_t uid_reserved;
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uint16_t gid_reserved;
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uint32_t first_inode;
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uint16_t inode_size;
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uint16_t block_group_number;
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uint32_t feature_compatibility;
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uint32_t feature_incompat;
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uint32_t feature_ro_compat;
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uint32_t unique_id[4];
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char volume_name[16];
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char last_mounted_on[64];
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uint32_t compression_info;
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};
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struct ext2_block_group {
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__u32 block_id; /* Blocks bitmap block */
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__u32 inode_id; /* Inodes bitmap block */
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__u32 inode_table_id; /* Inodes table block */
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__u16 free_blocks; /* Free blocks count */
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__u16 free_inodes; /* Free inodes count */
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__u16 used_dir_cnt; /* Directories count */
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__u16 bg_flags;
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__u32 bg_reserved[2];
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__u16 bg_itable_unused; /* Unused inodes count */
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__u16 bg_checksum; /* crc16(s_uuid+grouo_num+group_desc)*/
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};
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/* The ext2 inode. */
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struct ext2_inode {
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uint16_t mode;
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uint16_t uid;
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uint32_t size;
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uint32_t atime;
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uint32_t ctime;
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uint32_t mtime;
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uint32_t dtime;
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uint16_t gid;
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uint16_t nlinks;
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uint32_t blockcnt; /* Blocks of 512 bytes!! */
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uint32_t flags;
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uint32_t osd1;
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union {
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struct datablocks {
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uint32_t dir_blocks[INDIRECT_BLOCKS];
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uint32_t indir_block;
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uint32_t double_indir_block;
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uint32_t triple_indir_block;
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} blocks;
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char symlink[60];
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} b;
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uint32_t version;
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uint32_t acl;
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uint32_t dir_acl;
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uint32_t fragment_addr;
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uint32_t osd2[3];
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};
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/* The header of an ext2 directory entry. */
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struct ext2_dirent {
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uint32_t inode;
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uint16_t direntlen;
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uint8_t namelen;
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uint8_t filetype;
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};
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struct ext2fs_node {
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struct ext2_data *data;
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struct ext2_inode inode;
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int ino;
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int inode_read;
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};
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/* Information about a "mounted" ext2 filesystem. */
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struct ext2_data {
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struct ext2_sblock sblock;
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struct ext2_inode *inode;
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struct ext2fs_node diropen;
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};
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int do_ext2ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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int do_ext2load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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int do_ext4_load(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[]);
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int do_ext4_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
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int do_ext4_write(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[]);
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int do_ext_load(cmd_tbl_t *cmdtp, int flag, int argc,
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char *const argv[]);
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int do_ext_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]);
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#endif
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