Commit bcd0be5c authored by stroese's avatar stroese
Browse files

ext2fs support added

parent 2b918712
/*
* (C) Copyright 2004
* esd gmbh <www.esd-electronics.com>
* Reinhard Arlt <reinhard.arlt@esd-electronics.com>
*
* made from cmd_reiserfs by
*
* (C) Copyright 2003 - 2004
* Sysgo Real-Time Solutions, AG <www.elinos.com>
* Pavel Bartusek <pba@sysgo.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
/*
* Ext2fs support
*/
#include <common.h>
#if (CONFIG_COMMANDS & CFG_CMD_EXT2)
#include <config.h>
#include <command.h>
#include <image.h>
#include <linux/ctype.h>
#include <asm/byteorder.h>
#include <ext2fs.h>
#ifndef CONFIG_DOS_PARTITION
#error DOS partition support must be selected
#endif
/* #define EXT2_DEBUG */
#ifdef EXT2_DEBUG
#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif
static block_dev_desc_t *get_dev (char* ifname, int dev)
{
#if (CONFIG_COMMANDS & CFG_CMD_IDE)
if (strncmp(ifname,"ide",3)==0) {
extern block_dev_desc_t * ide_get_dev(int dev);
return((dev >= CFG_IDE_MAXDEVICE) ? NULL : ide_get_dev(dev));
}
#endif
#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
if (strncmp(ifname,"scsi",4)==0) {
extern block_dev_desc_t * scsi_get_dev(int dev);
return((dev >= CFG_SCSI_MAXDEVICE) ? NULL : scsi_get_dev(dev));
}
#endif
#if ((CONFIG_COMMANDS & CFG_CMD_USB) && defined(CONFIG_USB_STORAGE))
if (strncmp(ifname,"usb",3)==0) {
extern block_dev_desc_t * usb_stor_get_dev(int dev);
return((dev >= USB_MAX_STOR_DEV) ? NULL : usb_stor_get_dev(dev));
}
#endif
#if defined(CONFIG_MMC)
if (strncmp(ifname,"mmc",3)==0) {
extern block_dev_desc_t * mmc_get_dev(int dev);
return((dev >= 1) ? NULL : mmc_get_dev(dev));
}
#endif
#if defined(CONFIG_SYSTEMACE)
if (strcmp(ifname,"ace")==0) {
extern block_dev_desc_t * systemace_get_dev(int dev);
return((dev >= 1) ? NULL : systemace_get_dev(dev));
}
#endif
return(NULL);
}
int do_ext2ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = "/";
int dev=0;
int part=1;
char *ep;
block_dev_desc_t *dev_desc=NULL;
int part_length;
if (argc < 3) {
printf ("Usage:\n%s\n", cmdtp->usage);
return(1);
}
dev = (int)simple_strtoul (argv[2], &ep, 16);
dev_desc=get_dev(argv[1],dev);
if (dev_desc == NULL) {
printf ("\n** Block device %s %d not supported\n", argv[1], dev);
return(1);
}
if (*ep) {
if (*ep != ':') {
puts ("\n** Invalid boot device, use `dev[:part]' **\n");
return(1);
}
part = (int)simple_strtoul(++ep, NULL, 16);
}
if (argc == 4) {
filename = argv[3];
}
PRINTF("Using device %s %d:%d, directory: %s\n", argv[1], dev, part, filename);
if ((part_length = ext2fs_set_blk_dev(dev_desc, part)) == 0) {
printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
if (!ext2fs_mount(part_length)) {
printf ("** Bad ext2 partition or disk - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
if (ext2fs_ls (filename)) {
printf ("** Error ext2fs_ls() **\n");
ext2fs_close();
return(1);
};
ext2fs_close();
return(0);
}
U_BOOT_CMD(
ext2ls, 4, 1, do_ext2ls,
"ext2ls- list files in a directory (default /)\n",
"<interface> <dev[:part]> [directory]\n"
" - list files from 'dev' on 'interface' in a 'directory'\n"
);
/******************************************************************************
* Ext2fs boot command intepreter. Derived from diskboot
*/
int do_ext2load (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
char *filename = NULL;
char *ep;
int dev, part = 0;
ulong addr = 0, part_length, filelen;
disk_partition_t info;
block_dev_desc_t *dev_desc = NULL;
char buf [12];
unsigned long count;
char *addr_str;
switch (argc) {
case 3:
addr_str = getenv("loadaddr");
if (addr_str != NULL) {
addr = simple_strtoul (addr_str, NULL, 16);
} else {
addr = CFG_LOAD_ADDR;
}
filename = getenv ("bootfile");
count = 0;
break;
case 4:
addr = simple_strtoul (argv[3], NULL, 16);
filename = getenv ("bootfile");
count = 0;
break;
case 5:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = 0;
break;
case 6:
addr = simple_strtoul (argv[3], NULL, 16);
filename = argv[4];
count = simple_strtoul (argv[5], NULL, 16);
break;
default:
printf ("Usage:\n%s\n", cmdtp->usage);
return(1);
}
if (!filename) {
puts ("\n** No boot file defined **\n");
return(1);
}
dev = (int)simple_strtoul (argv[2], &ep, 16);
dev_desc=get_dev(argv[1],dev);
if (dev_desc==NULL) {
printf ("\n** Block device %s %d not supported\n", argv[1], dev);
return(1);
}
if (*ep) {
if (*ep != ':') {
puts ("\n** Invalid boot device, use `dev[:part]' **\n");
return(1);
}
part = (int)simple_strtoul(++ep, NULL, 16);
}
PRINTF("Using device %s%d, partition %d\n", argv[1], dev, part);
if (part != 0) {
if (get_partition_info (&dev_desc[dev], part, &info)) {
printf ("** Bad partition %d **\n", part);
return(1);
}
if (strncmp(info.type, BOOT_PART_TYPE, sizeof(info.type)) != 0) {
printf ("\n** Invalid partition type \"%.32s\""
" (expect \"" BOOT_PART_TYPE "\")\n",
info.type);
return(1);
}
PRINTF ("\nLoading from block device %s device %d, partition %d: "
"Name: %.32s Type: %.32s File:%s\n",
argv[1], dev, part, info.name, info.type, filename);
} else {
PRINTF ("\nLoading from block device %s device %d, File:%s\n",
argv[1], dev, filename);
}
if ((part_length = ext2fs_set_blk_dev(dev_desc, part)) == 0) {
printf ("** Bad partition - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
if (!ext2fs_mount(part_length)) {
printf ("** Bad ext2 partition or disk - %s %d:%d **\n", argv[1], dev, part);
ext2fs_close();
return(1);
}
filelen = ext2fs_open(filename);
if (filelen < 0) {
printf("** File not found %s\n", filename);
ext2fs_close();
return(1);
}
if ((count < filelen) && (count != 0)) {
filelen = count;
}
if (ext2fs_read((char *)addr, filelen) != filelen) {
printf("\n** Unable to read \"%s\" from %s %d:%d **\n", filename, argv[1], dev, part);
ext2fs_close();
return(1);
}
ext2fs_close();
/* Loading ok, update default load address */
load_addr = addr;
printf ("\n%ld bytes read\n", filelen);
sprintf(buf, "%lX", filelen);
setenv("filesize", buf);
return(filelen);
}
U_BOOT_CMD(
ext2load, 6, 0, do_ext2load,
"ext2load- load binary file from a Ext2 filesystem\n",
"<interface> <dev[:part]> [addr] [filename] [bytes]\n"
" - load binary file 'filename' from 'dev' on 'interface'\n"
" to address 'addr' from ext2 filesystem\n"
);
#endif /* CONFIG_COMMANDS & CFG_CMD_EXT2 */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
*
* (C) Copyright 2003 Sysgo Real-Time Solutions, AG <www.elinos.com>
* Pavel Bartusek <pba@sysgo.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* An implementation for the Ext2FS filesystem ported from GRUB.
* Some parts of this code (mainly the structures and defines) are
* from the original ext2 fs code, as found in the linux kernel.
*/
#define SECTOR_SIZE 0x200
#define SECTOR_BITS 9
/* Error codes */
typedef enum
{
ERR_NONE = 0,
ERR_BAD_FILENAME,
ERR_BAD_FILETYPE,
ERR_BAD_GZIP_DATA,
ERR_BAD_GZIP_HEADER,
ERR_BAD_PART_TABLE,
ERR_BAD_VERSION,
ERR_BELOW_1MB,
ERR_BOOT_COMMAND,
ERR_BOOT_FAILURE,
ERR_BOOT_FEATURES,
ERR_DEV_FORMAT,
ERR_DEV_VALUES,
ERR_EXEC_FORMAT,
ERR_FILELENGTH,
ERR_FILE_NOT_FOUND,
ERR_FSYS_CORRUPT,
ERR_FSYS_MOUNT,
ERR_GEOM,
ERR_NEED_LX_KERNEL,
ERR_NEED_MB_KERNEL,
ERR_NO_DISK,
ERR_NO_PART,
ERR_NUMBER_PARSING,
ERR_OUTSIDE_PART,
ERR_READ,
ERR_SYMLINK_LOOP,
ERR_UNRECOGNIZED,
ERR_WONT_FIT,
ERR_WRITE,
ERR_BAD_ARGUMENT,
ERR_UNALIGNED,
ERR_PRIVILEGED,
ERR_DEV_NEED_INIT,
ERR_NO_DISK_SPACE,
ERR_NUMBER_OVERFLOW,
MAX_ERR_NUM
} ext2fs_error_t;
extern int ext2fs_set_blk_dev(block_dev_desc_t *rbdd, int part);
extern int ext2fs_ls (char *dirname);
extern int ext2fs_open (char *filename);
extern int ext2fs_read (char *buf, unsigned len);
extern int ext2fs_mount (unsigned part_length);
extern int ext2fs_close(void);
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