summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--common/cmd_ext2.c294
-rw-r--r--include/ext2fs.h81
2 files changed, 375 insertions, 0 deletions
diff --git a/common/cmd_ext2.c b/common/cmd_ext2.c
new file mode 100644
index 000000000..f8e04ed82
--- /dev/null
+++ b/common/cmd_ext2.c
@@ -0,0 +1,294 @@
+/*
+ * (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 */
diff --git a/include/ext2fs.h b/include/ext2fs.h
new file mode 100644
index 000000000..de935b093
--- /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 <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);
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 00:06:50 +0000