ext2fs support added

1 files changed, 81 insertions, 0 deletions

diff --git a/include/ext2fs.h b/include/ext2fs.h
new file mode 100644
index 0000000000..de935b093b
--- /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);