From bcd0be5cf1b831a3ebe85b9f7285fa2eebae8a7b Mon Sep 17 00:00:00 2001 From: stroese Date: Thu, 16 Dec 2004 17:33:10 +0000 Subject: [PATCH] ext2fs support added --- common/cmd_ext2.c | 294 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/ext2fs.h | 81 +++++++++++++++ 2 files changed, 375 insertions(+) create mode 100644 common/cmd_ext2.c create mode 100644 include/ext2fs.h diff --git a/common/cmd_ext2.c b/common/cmd_ext2.c new file mode 100644 index 0000000..f8e04ed --- /dev/null +++ b/common/cmd_ext2.c @@ -0,0 +1,294 @@ +/* + * (C) Copyright 2004 + * esd gmbh + * Reinhard Arlt + * + * made from cmd_reiserfs by + * + * (C) Copyright 2003 - 2004 + * Sysgo Real-Time Solutions, AG + * Pavel Bartusek + * + * 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 + +#if (CONFIG_COMMANDS & CFG_CMD_EXT2) +#include +#include +#include +#include +#include +#include + +#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", + " [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", + " [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 */ diff --git a/include/ext2fs.h b/include/ext2fs.h new file mode 100644 index 0000000..de935b0 --- /dev/null +++ b/include/ext2fs.h @@ -0,0 +1,81 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2000, 2001 Free Software Foundation, Inc. + * + * (C) Copyright 2003 Sysgo Real-Time Solutions, AG + * Pavel Bartusek + * + * 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); -- 2.7.4