25 Jul
2009
25 Jul
'09
7:59 a.m.
Author: dgorbachev
Date: Sat Jul 25 09:59:18 2009
New Revision: 42194
URL: http://svn.reactos.org/svn/reactos?rev=42194&view=rev
Log:
Undo part of r42190. Sorry.
Modified:
trunk/reactos/boot/freeldr/freeldr/include/fs/ext2.h
Modified: trunk/reactos/boot/freeldr/freeldr/include/fs/ext2.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/inclu…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/include/fs/ext2.h [iso-8859-1] (original)
+++ trunk/reactos/boot/freeldr/freeldr/include/fs/ext2.h [iso-8859-1] Sat Jul 25 09:59:18
2009
@@ -20,154 +20,613 @@
#ifndef __EXT2_H
#define __EXT2_H
-/*
- * grub/fs/ext2.c
+
+/*
+ * linux/include/linux/ext3_fs.h
*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 2003,2004,2005,2007 Free Software Foundation, Inc.
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card(a)masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
*
- * 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.
+ * from
*
- * 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.
+ * linux/include/linux/minix_fs.h
*
- * You should have received a copy of the GNU General Public License
- * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* Magic value used to identify an ext2 filesystem. */
-#define EXT2_MAGIC 0xEF53
-/* Amount of indirect blocks in an inode. */
-#define INDIRECT_BLOCKS 12
-/* Maximum lenght of a pathname. */
-#define EXT2_PATH_MAX 4096
-/* Maximum nesting of symlinks, used to prevent a loop. */
-#define EXT2_MAX_SYMLINKCNT 8
-
-/* The good old revision and the default inode size. */
-#define EXT2_GOOD_OLD_REVISION 0
-#define EXT2_GOOD_OLD_INODE_SIZE 128
-
-/* Filetype used in directory entry. */
-#define FILETYPE_UNKNOWN 0
-#define FILETYPE_REG 1
-#define FILETYPE_DIRECTORY 2
-#define FILETYPE_SYMLINK 7
-
-/* Filetype information as used in inodes. */
-#define FILETYPE_INO_MASK 0170000
-#define FILETYPE_INO_REG 0100000
-#define FILETYPE_INO_DIRECTORY 0040000
-#define FILETYPE_INO_SYMLINK 0120000
-
-/* The ext2 superblock. */
-struct ext2_sblock
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ */
+
+#ifndef _LINUX_EXT3_FS_H
+#define _LINUX_EXT3_FS_H
+
+//#include <linux/types.h>
+
+/*
+ * The second extended filesystem constants/structures
+ */
+
+/*
+ * Define EXT3FS_DEBUG to produce debug messages
+ */
+#undef EXT3FS_DEBUG
+
+/*
+ * Define EXT3_PREALLOCATE to preallocate data blocks for expanding files
+ */
+#undef EXT3_PREALLOCATE /* @@@ Fix this! */
+#define EXT3_DEFAULT_PREALLOC_BLOCKS 8
+
+/*
+ * The second extended file system version
+ */
+#define EXT3FS_DATE "10 Jan 2002"
+#define EXT3FS_VERSION "2.4-0.9.17"
+
+/*
+ * Debug code
+ */
+#ifdef EXT3FS_DEBUG
+#define ext3_debug(f, a...) \
+ do { \
+ printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:", \
+ __FILE__, __LINE__, __FUNCTION__); \
+ printk (KERN_DEBUG f, ## a); \
+ } while (0)
+#else
+ #ifdef __GNUC__
+ #define ext3_debug(f, a...) do {} while (0)
+ #else
+ #define ext3_debug
+ #endif
+#endif
+
+/*
+ * Special inodes numbers
+ */
+#define EXT3_BAD_INO 1 /* Bad blocks inode */
+#define EXT3_ROOT_INO 2 /* Root inode */
+#define EXT3_ACL_IDX_INO 3 /* ACL inode */
+#define EXT3_ACL_DATA_INO 4 /* ACL inode */
+#define EXT3_BOOT_LOADER_INO 5 /* Boot loader inode */
+#define EXT3_UNDEL_DIR_INO 6 /* Undelete directory inode */
+#define EXT3_RESIZE_INO 7 /* Reserved group descriptors inode */
+#define EXT3_JOURNAL_INO 8 /* Journal inode */
+
+/* First non-reserved inode for old ext3 filesystems */
+#define EXT3_GOOD_OLD_FIRST_INO 11
+
+/*
+ * The second extended file system magic number
+ */
+#define EXT3_SUPER_MAGIC 0xEF53
+
+/*
+ * Maximal count of links to a file
+ */
+#define EXT3_LINK_MAX 32000
+
+/*
+ * Macro-instructions used to manage several block sizes
+ */
+#define EXT3_MIN_BLOCK_SIZE 1024
+#define EXT3_MAX_BLOCK_SIZE 4096
+#define EXT3_MIN_BLOCK_LOG_SIZE 10
+#ifdef __KERNEL__
+# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize)
+#else
+# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size)
+#endif
+#define EXT3_ACLE_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_acl_entry))
+#define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (ULONG))
+#ifdef __KERNEL__
+# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
+#else
+# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
+#endif
+#ifdef __KERNEL__
+#define EXT3_ADDR_PER_BLOCK_BITS(s) ((s)->u.ext3_sb.s_addr_per_block_bits)
+#define EXT3_INODE_SIZE(s) ((s)->u.ext3_sb.s_inode_size)
+#define EXT3_FIRST_INO(s) ((s)->u.ext3_sb.s_first_ino)
+#else
+#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
+ EXT3_GOOD_OLD_INODE_SIZE : \
+ (s)->s_inode_size)
+#define EXT3_FIRST_INO(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
+ EXT3_GOOD_OLD_FIRST_INO : \
+ (s)->s_first_ino)
+#endif
+
+/*
+ * Macro-instructions used to manage fragments
+ */
+#define EXT3_MIN_FRAG_SIZE 1024
+#define EXT3_MAX_FRAG_SIZE 4096
+#define EXT3_MIN_FRAG_LOG_SIZE 10
+#ifdef __KERNEL__
+# define EXT3_FRAG_SIZE(s) ((s)->u.ext3_sb.s_frag_size)
+# define EXT3_FRAGS_PER_BLOCK(s) ((s)->u.ext3_sb.s_frags_per_block)
+#else
+# define EXT3_FRAG_SIZE(s) (EXT3_MIN_FRAG_SIZE << (s)->s_log_frag_size)
+# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / EXT3_FRAG_SIZE(s))
+#endif
+
+/*
+ * ACL structures
+ */
+struct ext3_acl_header /* Header of Access Control Lists */
{
- ULONG total_inodes;
- ULONG total_blocks;
- ULONG reserved_blocks;
- ULONG free_blocks;
- ULONG free_inodes;
- ULONG first_data_block;
- ULONG log2_block_size;
- ULONG log2_fragment_size;
- ULONG blocks_per_group;
- ULONG fragments_per_group;
- ULONG inodes_per_group;
- ULONG mtime;
- ULONG utime;
- USHORT mnt_count;
- USHORT max_mnt_count;
- USHORT magic;
- USHORT fs_state;
- USHORT error_handling;
- USHORT minor_revision_level;
- ULONG lastcheck;
- ULONG checkinterval;
- ULONG creator_os;
- ULONG revision_level;
- USHORT uid_reserved;
- USHORT gid_reserved;
- ULONG first_inode;
- USHORT inode_size;
- USHORT block_group_number;
- ULONG feature_compatibility;
- ULONG feature_incompat;
- ULONG feature_ro_compat;
- ULONG unique_id[4];
- char volume_name[16];
- char last_mounted_on[64];
- ULONG compression_info;
+ ULONG aclh_size;
+ ULONG aclh_file_count;
+ ULONG aclh_acle_count;
+ ULONG aclh_first_acle;
};
-/* The ext2 blockgroup. */
-struct ext2_block_group
+struct ext3_acl_entry /* Access Control List Entry */
{
- ULONG block_id;
- ULONG inode_id;
- ULONG inode_table_id;
- USHORT free_blocks;
- USHORT free_inodes;
- USHORT used_dirs;
- USHORT pad;
- ULONG reserved[3];
+ ULONG acle_size;
+ USHORT acle_perms; /* Access permissions */
+ USHORT acle_type; /* Type of entry */
+ USHORT acle_tag; /* User or group identity */
+ USHORT acle_pad1;
+ ULONG acle_next; /* Pointer on next entry for the */
+ /* same inode or on next free entry */
};
-/* The ext2 inode. */
-struct ext2_inode
+/*
+ * Structure of a blocks group descriptor
+ */
+struct ext3_group_desc
{
- USHORT mode;
- USHORT uid;
- ULONG size;
- ULONG atime;
- ULONG ctime;
- ULONG mtime;
- ULONG dtime;
- USHORT gid;
- USHORT nlinks;
- ULONG blockcnt; /* Blocks of 512 bytes!! */
- ULONG flags;
- ULONG osd1;
- union
- {
- struct datablocks
- {
- ULONG dir_blocks[INDIRECT_BLOCKS];
- ULONG indir_block;
- ULONG double_indir_block;
- ULONG tripple_indir_block;
- } blocks;
- char symlink[60];
- };
- ULONG version;
- ULONG acl;
- ULONG dir_acl;
- ULONG fragment_addr;
- ULONG osd2[3];
+ ULONG bg_block_bitmap; /* Blocks bitmap block */
+ ULONG bg_inode_bitmap; /* Inodes bitmap block */
+ ULONG bg_inode_table; /* Inodes table block */
+ USHORT bg_free_blocks_count; /* Free blocks count */
+ USHORT bg_free_inodes_count; /* Free inodes count */
+ USHORT bg_used_dirs_count; /* Directories count */
+ USHORT bg_pad;
+ ULONG bg_reserved[3];
};
-/* The header of an ext2 directory entry. */
-struct ext2_dirent
+/*
+ * Macro-instructions used to manage group descriptors
+ */
+#ifdef __KERNEL__
+# define EXT3_BLOCKS_PER_GROUP(s) ((s)->u.ext3_sb.s_blocks_per_group)
+# define EXT3_DESC_PER_BLOCK(s) ((s)->u.ext3_sb.s_desc_per_block)
+# define EXT3_INODES_PER_GROUP(s) ((s)->u.ext3_sb.s_inodes_per_group)
+# define EXT3_DESC_PER_BLOCK_BITS(s) ((s)->u.ext3_sb.s_desc_per_block_bits)
+#else
+# define EXT3_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
+# define EXT3_DESC_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_group_desc))
+# define EXT3_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
+#endif
+
+/*
+ * Constants relative to the data blocks
+ */
+#define EXT3_NDIR_BLOCKS 12
+#define EXT3_IND_BLOCK EXT3_NDIR_BLOCKS
+#define EXT3_DIND_BLOCK (EXT3_IND_BLOCK + 1)
+#define EXT3_TIND_BLOCK (EXT3_DIND_BLOCK + 1)
+#define EXT3_N_BLOCKS (EXT3_TIND_BLOCK + 1)
+
+/*
+ * Inode flags
+ */
+#define EXT3_SECRM_FL 0x00000001 /* Secure deletion */
+#define EXT3_UNRM_FL 0x00000002 /* Undelete */
+#define EXT3_COMPR_FL 0x00000004 /* Compress file */
+#define EXT3_SYNC_FL 0x00000008 /* Synchronous updates */
+#define EXT3_IMMUTABLE_FL 0x00000010 /* Immutable file */
+#define EXT3_APPEND_FL 0x00000020 /* writes to file may only append */
+#define EXT3_NODUMP_FL 0x00000040 /* do not dump file */
+#define EXT3_NOATIME_FL 0x00000080 /* do not update atime */
+/* Reserved for compression usage... */
+#define EXT3_DIRTY_FL 0x00000100
+#define EXT3_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
+#define EXT3_NOCOMPR_FL 0x00000400 /* Don't compress */
+#define EXT3_ECOMPR_FL 0x00000800 /* Compression error */
+/* End compression flags --- maybe not all used */
+#define EXT3_INDEX_FL 0x00001000 /* hash-indexed directory */
+#define EXT3_IMAGIC_FL 0x00002000 /* AFS directory */
+#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
+#define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */
+
+#define EXT3_FL_USER_VISIBLE 0x00005FFF /* User visible flags */
+#define EXT3_FL_USER_MODIFIABLE 0x000000FF /* User modifiable flags */
+
+/*
+ * Inode dynamic state flags
+ */
+#define EXT3_STATE_JDATA 0x00000001 /* journaled data exists */
+#define EXT3_STATE_NEW 0x00000002 /* inode is newly created */
+
+/*
+ * ioctl commands
+ */
+#define EXT3_IOC_GETFLAGS _IOR('f', 1, long)
+#define EXT3_IOC_SETFLAGS _IOW('f', 2, long)
+#define EXT3_IOC_GETVERSION _IOR('f', 3, long)
+#define EXT3_IOC_SETVERSION _IOW('f', 4, long)
+#define EXT3_IOC_GETVERSION_OLD _IOR('v', 1, long)
+#define EXT3_IOC_SETVERSION_OLD _IOW('v', 2, long)
+#ifdef CONFIG_JBD_DEBUG
+#define EXT3_IOC_WAIT_FOR_READONLY _IOR('f', 99, long)
+#endif
+
+/*
+ * Structure of an inode on the disk
+ */
+struct ext3_inode {
+ USHORT i_mode; /* File mode */
+ USHORT i_uid; /* Low 16 bits of Owner Uid */
+ ULONG i_size; /* Size in bytes */
+ ULONG i_atime; /* Access time */
+ ULONG i_ctime; /* Creation time */
+ ULONG i_mtime; /* Modification time */
+ ULONG i_dtime; /* Deletion Time */
+ USHORT i_gid; /* Low 16 bits of Group Id */
+ USHORT i_links_count; /* Links count */
+ ULONG i_blocks; /* Blocks count */
+ ULONG i_flags; /* File flags */
+ union {
+ struct {
+ ULONG l_i_reserved1;
+ } linux1;
+ struct {
+ ULONG h_i_translator;
+ } hurd1;
+ struct {
+ ULONG m_i_reserved1;
+ } masix1;
+ } osd1; /* OS dependent 1 */
+ ULONG i_block[EXT3_N_BLOCKS];/* Pointers to blocks */
+ ULONG i_generation; /* File version (for NFS) */
+ ULONG i_file_acl; /* File ACL */
+ ULONG i_dir_acl; /* Directory ACL */
+ ULONG i_faddr; /* Fragment address */
+ union {
+ struct {
+ UCHAR l_i_frag; /* Fragment number */
+ UCHAR l_i_fsize; /* Fragment size */
+ USHORT i_pad1;
+ USHORT l_i_uid_high; /* these 2 fields */
+ USHORT l_i_gid_high; /* were reserved2[0] */
+ ULONG l_i_reserved2;
+ } linux2;
+ struct {
+ UCHAR h_i_frag; /* Fragment number */
+ UCHAR h_i_fsize; /* Fragment size */
+ USHORT h_i_mode_high;
+ USHORT h_i_uid_high;
+ USHORT h_i_gid_high;
+ ULONG h_i_author;
+ } hurd2;
+ struct {
+ UCHAR m_i_frag; /* Fragment number */
+ UCHAR m_i_fsize; /* Fragment size */
+ USHORT m_pad1;
+ ULONG m_i_reserved2[2];
+ } masix2;
+ } osd2; /* OS dependent 2 */
+};
+
+#define i_size_high i_dir_acl
+
+#if defined(__KERNEL__) || defined(__linux__)
+#define i_reserved1 osd1.linux1.l_i_reserved1
+#define i_frag osd2.linux2.l_i_frag
+#define i_fsize osd2.linux2.l_i_fsize
+#define i_uid_low i_uid
+#define i_gid_low i_gid
+#define i_uid_high osd2.linux2.l_i_uid_high
+#define i_gid_high osd2.linux2.l_i_gid_high
+#define i_reserved2 osd2.linux2.l_i_reserved2
+
+#elif defined(__GNU__)
+
+#define i_translator osd1.hurd1.h_i_translator
+#define i_frag osd2.hurd2.h_i_frag;
+#define i_fsize osd2.hurd2.h_i_fsize;
+#define i_uid_high osd2.hurd2.h_i_uid_high
+#define i_gid_high osd2.hurd2.h_i_gid_high
+#define i_author osd2.hurd2.h_i_author
+
+#elif defined(__masix__)
+
+#define i_reserved1 osd1.masix1.m_i_reserved1
+#define i_frag osd2.masix2.m_i_frag
+#define i_fsize osd2.masix2.m_i_fsize
+#define i_reserved2 osd2.masix2.m_i_reserved2
+
+#endif /* defined(__KERNEL__) || defined(__linux__) */
+
+/*
+ * File system states
+ */
+#define EXT3_VALID_FS 0x0001 /* Unmounted cleanly */
+#define EXT3_ERROR_FS 0x0002 /* Errors detected */
+#define EXT3_ORPHAN_FS 0x0004 /* Orphans being recovered */
+
+/*
+ * Mount flags
+ */
+#define EXT3_MOUNT_CHECK 0x0001 /* Do mount-time checks */
+#define EXT3_MOUNT_GRPID 0x0004 /* Create files with directory's group */
+#define EXT3_MOUNT_DEBUG 0x0008 /* Some debugging messages */
+#define EXT3_MOUNT_ERRORS_CONT 0x0010 /* Continue on errors */
+#define EXT3_MOUNT_ERRORS_RO 0x0020 /* Remount fs ro on errors */
+#define EXT3_MOUNT_ERRORS_PANIC 0x0040 /* Panic on errors */
+#define EXT3_MOUNT_MINIX_DF 0x0080 /* Mimics the Minix statfs */
+#define EXT3_MOUNT_NOLOAD 0x0100 /* Don't use existing journal*/
+#define EXT3_MOUNT_ABORT 0x0200 /* Fatal error detected */
+#define EXT3_MOUNT_DATA_FLAGS 0x0C00 /* Mode for data writes: */
+ #define EXT3_MOUNT_JOURNAL_DATA 0x0400 /* Write data to journal */
+ #define EXT3_MOUNT_ORDERED_DATA 0x0800 /* Flush data before commit */
+ #define EXT3_MOUNT_WRITEBACK_DATA 0x0C00 /* No data ordering */
+#define EXT3_MOUNT_UPDATE_JOURNAL 0x1000 /* Update the journal format */
+#define EXT3_MOUNT_NO_UID32 0x2000 /* Disable 32-bit UIDs */
+
+/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
+#ifndef _LINUX_EXT2_FS_H
+#define clear_opt(o, opt) o &= ~EXT3_MOUNT_##opt
+#define set_opt(o, opt) o |= EXT3_MOUNT_##opt
+#define test_opt(sb, opt) ((sb)->u.ext3_sb.s_mount_opt & \
+ EXT3_MOUNT_##opt)
+#else
+#define EXT2_MOUNT_NOLOAD EXT3_MOUNT_NOLOAD
+#define EXT2_MOUNT_ABORT EXT3_MOUNT_ABORT
+#endif
+
+#define ext3_set_bit ext2_set_bit
+#define ext3_clear_bit ext2_clear_bit
+#define ext3_test_bit ext2_test_bit
+#define ext3_find_first_zero_bit ext2_find_first_zero_bit
+#define ext3_find_next_zero_bit ext2_find_next_zero_bit
+
+/*
+ * Maximal mount counts between two filesystem checks
+ */
+#define EXT3_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
+#define EXT3_DFL_CHECKINTERVAL 0 /* Don't use interval check */
+
+/*
+ * Behaviour when detecting errors
+ */
+#define EXT3_ERRORS_CONTINUE 1 /* Continue execution */
+#define EXT3_ERRORS_RO 2 /* Remount fs read-only */
+#define EXT3_ERRORS_PANIC 3 /* Panic */
+#define EXT3_ERRORS_DEFAULT EXT3_ERRORS_CONTINUE
+
+/*
+ * Structure of the super block
+ */
+struct ext3_super_block {
+/*00*/ ULONG s_inodes_count; /* Inodes count */
+ ULONG s_blocks_count; /* Blocks count */
+ ULONG s_r_blocks_count; /* Reserved blocks count */
+ ULONG s_free_blocks_count; /* Free blocks count */
+/*10*/ ULONG s_free_inodes_count; /* Free inodes count */
+ ULONG s_first_data_block; /* First Data Block */
+ ULONG s_log_block_size; /* Block size */
+ LONG s_log_frag_size; /* Fragment size */
+/*20*/ ULONG s_blocks_per_group; /* # Blocks per group */
+ ULONG s_frags_per_group; /* # Fragments per group */
+ ULONG s_inodes_per_group; /* # Inodes per group */
+ ULONG s_mtime; /* Mount time */
+/*30*/ ULONG s_wtime; /* Write time */
+ USHORT s_mnt_count; /* Mount count */
+ SHORT s_max_mnt_count; /* Maximal mount count */
+ USHORT s_magic; /* Magic signature */
+ USHORT s_state; /* File system state */
+ USHORT s_errors; /* Behaviour when detecting errors */
+ USHORT s_minor_rev_level; /* minor revision level */
+/*40*/ ULONG s_lastcheck; /* time of last check */
+ ULONG s_checkinterval; /* max. time between checks */
+ ULONG s_creator_os; /* OS */
+ ULONG s_rev_level; /* Revision level */
+/*50*/ USHORT s_def_resuid; /* Default uid for reserved blocks */
+ USHORT s_def_resgid; /* Default gid for reserved blocks */
+ /*
+ * These fields are for EXT3_DYNAMIC_REV superblocks only.
+ *
+ * Note: the difference between the compatible feature set and
+ * the incompatible feature set is that if there is a bit set
+ * in the incompatible feature set that the kernel doesn't
+ * know about, it should refuse to mount the filesystem.
+ *
+ * e2fsck's requirements are more strict; if it doesn't know
+ * about a feature in either the compatible or incompatible
+ * feature set, it must abort and not try to meddle with
+ * things it doesn't understand...
+ */
+ ULONG s_first_ino; /* First non-reserved inode */
+ USHORT s_inode_size; /* size of inode structure */
+ USHORT s_block_group_nr; /* block group # of this superblock */
+ ULONG s_feature_compat; /* compatible feature set */
+/*60*/ ULONG s_feature_incompat; /* incompatible feature set */
+ ULONG s_feature_ro_compat; /* readonly-compatible feature set */
+/*68*/ UCHAR s_uuid[16]; /* 128-bit uuid for volume */
+/*78*/ char s_volume_name[16]; /* volume name */
+/*88*/ char s_last_mounted[64]; /* directory where last mounted */
+/*C8*/ ULONG s_algorithm_usage_bitmap; /* For compression */
+ /*
+ * Performance hints. Directory preallocation should only
+ * happen if the EXT3_FEATURE_COMPAT_DIR_PREALLOC flag is on.
+ */
+ UCHAR s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
+ UCHAR s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
+ USHORT s_padding1;
+ /*
+ * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
+ */
+/*D0*/ UCHAR s_journal_uuid[16]; /* uuid of journal superblock */
+/*E0*/ ULONG s_journal_inum; /* inode number of journal file */
+ ULONG s_journal_dev; /* device number of journal file */
+ ULONG s_last_orphan; /* start of list of inodes to delete */
+
+/*EC*/ ULONG s_reserved[197]; /* Padding to the end of the block */
+};
+
+#ifdef __KERNEL__
+#define EXT3_SB(sb) (&((sb)->u.ext3_sb))
+#define EXT3_I(inode) (&((inode)->u.ext3_i))
+#else
+/* Assume that user mode programs are passing in an ext3fs superblock, not
+ * a kernel struct super_block. This will allow us to call the feature-test
+ * macros from user land. */
+#define EXT3_SB(sb) (sb)
+#endif
+
+#define NEXT_ORPHAN(inode) (inode)->u.ext3_i.i_dtime
+
+/*
+ * Codes for operating systems
+ */
+#define EXT3_OS_LINUX 0
+#define EXT3_OS_HURD 1
+#define EXT3_OS_MASIX 2
+#define EXT3_OS_FREEBSD 3
+#define EXT3_OS_LITES 4
+
+/*
+ * Revision levels
+ */
+#define EXT3_GOOD_OLD_REV 0 /* The good old (original) format */
+#define EXT3_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
+
+#define EXT3_CURRENT_REV EXT3_GOOD_OLD_REV
+#define EXT3_MAX_SUPP_REV EXT3_DYNAMIC_REV
+
+#define EXT3_GOOD_OLD_INODE_SIZE 128
+
+/*
+ * Feature set definitions
+ */
+
+#define EXT3_HAS_COMPAT_FEATURE(sb,mask) \
+ ( EXT3_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
+#define EXT3_HAS_RO_COMPAT_FEATURE(sb,mask) \
+ ( EXT3_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
+#define EXT3_HAS_INCOMPAT_FEATURE(sb,mask) \
+ ( EXT3_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
+#define EXT3_SET_COMPAT_FEATURE(sb,mask) \
+ EXT3_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
+#define EXT3_SET_RO_COMPAT_FEATURE(sb,mask) \
+ EXT3_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
+#define EXT3_SET_INCOMPAT_FEATURE(sb,mask) \
+ EXT3_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
+#define EXT3_CLEAR_COMPAT_FEATURE(sb,mask) \
+ EXT3_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
+#define EXT3_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
+ EXT3_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
+#define EXT3_CLEAR_INCOMPAT_FEATURE(sb,mask) \
+ EXT3_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
+
+#define EXT3_FEATURE_COMPAT_DIR_PREALLOC 0x0001
+#define EXT3_FEATURE_COMPAT_IMAGIC_INODES 0x0002
+#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
+#define EXT3_FEATURE_COMPAT_EXT_ATTR 0x0008
+#define EXT3_FEATURE_COMPAT_RESIZE_INODE 0x0010
+#define EXT3_FEATURE_COMPAT_DIR_INDEX 0x0020
+
+#define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
+#define EXT3_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
+#define EXT3_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
+
+#define EXT3_FEATURE_INCOMPAT_COMPRESSION 0x0001
+#define EXT3_FEATURE_INCOMPAT_FILETYPE 0x0002
+#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
+#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
+
+#define EXT3_FEATURE_COMPAT_SUPP 0
+/*#define EXT3_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_FILETYPE| \
+ EXT3_FEATURE_INCOMPAT_RECOVER)*/
+#define EXT3_FEATURE_INCOMPAT_SUPP (EXT3_FEATURE_INCOMPAT_FILETYPE)
+#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \
+ EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \
+ EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
+
+/*
+ * Default values for user and/or group using reserved blocks
+ */
+#define EXT3_DEF_RESUID 0
+#define EXT3_DEF_RESGID 0
+
+/*
+ * Structure of a directory entry
+ */
+#define EXT3_NAME_LEN 255
+
+struct ext3_dir_entry {
+ ULONG inode; /* Inode number */
+ USHORT rec_len; /* Directory entry length */
+ USHORT name_len; /* Name length */
+ CHAR name[EXT3_NAME_LEN]; /* File name */
+};
+
+/*
+ * The new version of the directory entry. Since EXT3 structures are
+ * stored in intel byte order, and the name_len field could never be
+ * bigger than 255 chars, it's safe to reclaim the extra byte for the
+ * file_type field.
+ */
+struct ext3_dir_entry_2 {
+ ULONG inode; /* Inode number */
+ USHORT rec_len; /* Directory entry length */
+ UCHAR name_len; /* Name length */
+ UCHAR file_type;
+ CHAR name[EXT3_NAME_LEN]; /* File name */
+};
+
+/*
+ * Ext3 directory file types. Only the low 3 bits are used. The
+ * other bits are reserved for now.
+ */
+#define EXT3_FT_UNKNOWN 0
+#define EXT3_FT_REG_FILE 1
+#define EXT3_FT_DIR 2
+#define EXT3_FT_CHRDEV 3
+#define EXT3_FT_BLKDEV 4
+#define EXT3_FT_FIFO 5
+#define EXT3_FT_SOCK 6
+#define EXT3_FT_SYMLINK 7
+
+#define EXT3_FT_MAX 8
+
+/*
+ * EXT3_DIR_PAD defines the directory entries boundaries
+ *
+ * NOTE: It must be a multiple of 4
+ */
+#define EXT3_DIR_PAD 4
+#define EXT3_DIR_ROUND (EXT3_DIR_PAD - 1)
+#define EXT3_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT3_DIR_ROUND) & \
+ ~EXT3_DIR_ROUND)
+
+#ifdef __KERNEL__
+/*
+ * Describe an inode's exact location on disk and in memory
+ */
+struct ext3_iloc
{
- ULONG inode;
- USHORT direntlen;
- UCHAR namelen;
- UCHAR filetype;
+ struct buffer_head *bh;
+ struct ext3_inode *raw_inode;
+ unsigned long block_group;
};
-/*
- * End of code from grub/fs/ext2.c
- */
-
-typedef struct ext2_sblock EXT2_SUPER_BLOCK, *PEXT2_SUPER_BLOCK;
-typedef struct ext2_inode EXT2_INODE, *PEXT2_INODE;
-typedef struct ext2_block_group EXT2_GROUP_DESC, *PEXT2_GROUP_DESC;
-typedef struct ext2_dirent EXT2_DIR_ENTRY, *PEXT2_DIR_ENTRY;
+
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_EXT3_FS_H */
+
+
+
+typedef struct ext3_super_block EXT2_SUPER_BLOCK, *PEXT2_SUPER_BLOCK;
+typedef struct ext3_inode EXT2_INODE, *PEXT2_INODE;
+typedef struct ext3_group_desc EXT2_GROUP_DESC, *PEXT2_GROUP_DESC;
+typedef struct ext3_dir_entry_2 EXT2_DIR_ENTRY, *PEXT2_DIR_ENTRY;
// EXT2_INODE::i_mode values
#define EXT2_S_IRWXO 0x0007 // Other mask
@@ -202,21 +661,23 @@
typedef struct
{
- ULONGLONG FileSize; // File size
- ULONGLONG FilePointer; // File pointer
+ ULONGLONG FileSize; // File size
+ ULONGLONG FilePointer; // File pointer
ULONG* FileBlockList; // File block list
- UCHAR DriveNumber; // Drive number of open file
- EXT2_INODE Inode; // File's inode
+ UCHAR DriveNumber; // Drive number of open file
+ EXT2_INODE Inode; // File's inode
} EXT2_FILE_INFO, * PEXT2_FILE_INFO;
+
+
BOOLEAN Ext2OpenVolume(UCHAR DriveNumber, ULONGLONG VolumeStartSector, ULONGLONG
PartitionSectorCount);
FILE* Ext2OpenFile(PCSTR FileName);
BOOLEAN Ext2LookupFile(PCSTR FileName, PEXT2_FILE_INFO Ext2FileInfoPointer);
BOOLEAN Ext2SearchDirectoryBufferForFile(PVOID DirectoryBuffer, ULONG DirectorySize,
PCHAR FileName, PEXT2_DIR_ENTRY DirectoryEntry);
BOOLEAN Ext2ReadFile(FILE *FileHandle, ULONG BytesToRead, ULONG* BytesRead, PVOID
Buffer);
-ULONG Ext2GetFileSize(FILE *FileHandle);
+ULONG Ext2GetFileSize(FILE *FileHandle);
VOID Ext2SetFilePointer(FILE *FileHandle, ULONG NewFilePointer);
-ULONG Ext2GetFilePointer(FILE *FileHandle);
+ULONG Ext2GetFilePointer(FILE *FileHandle);
BOOLEAN Ext2ReadVolumeSectors(UCHAR DriveNumber, ULONGLONG SectorNumber, ULONGLONG
SectorCount, PVOID Buffer);
BOOLEAN Ext2ReadFileBig(FILE *FileHandle, ULONGLONG BytesToRead, ULONGLONG* BytesRead,
PVOID Buffer);
@@ -225,15 +686,15 @@
BOOLEAN Ext2ReadDirectory(ULONG Inode, PVOID* DirectoryBuffer, PEXT2_INODE
InodePointer);
BOOLEAN Ext2ReadBlock(ULONG BlockNumber, PVOID Buffer);
BOOLEAN Ext2ReadPartialBlock(ULONG BlockNumber, ULONG StartingOffset, ULONG Length, PVOID
Buffer);
-ULONG Ext2GetGroupDescBlockNumber(ULONG Group);
-ULONG Ext2GetGroupDescOffsetInBlock(ULONG Group);
-ULONG Ext2GetInodeGroupNumber(ULONG Inode);
-ULONG Ext2GetInodeBlockNumber(ULONG Inode);
-ULONG Ext2GetInodeOffsetInBlock(ULONG Inode);
+ULONG Ext2GetGroupDescBlockNumber(ULONG Group);
+ULONG Ext2GetGroupDescOffsetInBlock(ULONG Group);
+ULONG Ext2GetInodeGroupNumber(ULONG Inode);
+ULONG Ext2GetInodeBlockNumber(ULONG Inode);
+ULONG Ext2GetInodeOffsetInBlock(ULONG Inode);
BOOLEAN Ext2ReadInode(ULONG Inode, PEXT2_INODE InodeBuffer);
BOOLEAN Ext2ReadGroupDescriptor(ULONG Group, PEXT2_GROUP_DESC GroupBuffer);
ULONG* Ext2ReadBlockPointerList(PEXT2_INODE Inode);
-ULONGLONG Ext2GetInodeFileSize(PEXT2_INODE Inode);
+ULONGLONG Ext2GetInodeFileSize(PEXT2_INODE Inode);
BOOLEAN Ext2CopyIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList, ULONG
BlockCount, ULONG IndirectBlock);
BOOLEAN Ext2CopyDoubleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList,
ULONG BlockCount, ULONG DoubleIndirectBlock);
BOOLEAN Ext2CopyTripleIndirectBlockPointers(ULONG* BlockList, ULONG* CurrentBlockInList,
ULONG BlockCount, ULONG TripleIndirectBlock);