diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
new file mode 100644
index 0000000..1d5800e
--- /dev/null
+++ b/fs/udf/udfdecl.h
@@ -0,0 +1,167 @@
+#ifndef __UDF_DECL_H
+#define __UDF_DECL_H
+
+#include <linux/udf_fs.h>
+#include "ecma_167.h"
+#include "osta_udf.h"
+
+#include <linux/fs.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/udf_fs_i.h>
+#include <linux/udf_fs_sb.h>
+#include <linux/buffer_head.h>
+
+#include "udfend.h"
+
+#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
+#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
+
+#define UDF_EXTENT_LENGTH_MASK	0x3FFFFFFF
+#define UDF_EXTENT_FLAG_MASK	0xC0000000
+
+#define UDF_NAME_PAD		4
+#define UDF_NAME_LEN		256
+#define UDF_PATH_LEN		1023
+
+#define udf_file_entry_alloc_offset(inode)\
+	(UDF_I_USE(inode) ?\
+		sizeof(struct unallocSpaceEntry) :\
+		((UDF_I_EFE(inode) ?\
+			sizeof(struct extendedFileEntry) :\
+			sizeof(struct fileEntry)) + UDF_I_LENEATTR(inode)))
+
+#define udf_ext0_offset(inode)\
+	(UDF_I_ALLOCTYPE(inode) == ICBTAG_FLAG_AD_IN_ICB ?\
+		udf_file_entry_alloc_offset(inode) : 0)
+
+#define udf_get_lb_pblock(sb,loc,offset) udf_get_pblock((sb), (loc).logicalBlockNum, (loc).partitionReferenceNum, (offset))
+
+struct dentry;
+struct inode;
+struct task_struct;
+struct buffer_head;
+struct super_block;
+
+extern struct inode_operations udf_dir_inode_operations;
+extern struct file_operations udf_dir_operations;
+extern struct inode_operations udf_file_inode_operations;
+extern struct file_operations udf_file_operations;
+extern struct address_space_operations udf_aops;
+extern struct address_space_operations udf_adinicb_aops;
+extern struct address_space_operations udf_symlink_aops;
+
+struct udf_fileident_bh
+{
+	struct buffer_head *sbh;
+	struct buffer_head *ebh;
+	int soffset;
+	int eoffset;
+};
+
+struct udf_vds_record
+{
+	uint32_t block;
+	uint32_t volDescSeqNum;
+};
+
+struct generic_desc
+{
+	tag		descTag;
+	__le32		volDescSeqNum;
+};
+
+struct ustr
+{
+	uint8_t u_cmpID;
+	uint8_t u_name[UDF_NAME_LEN-2];
+	uint8_t u_len;
+};
+
+/* super.c */
+extern void udf_error(struct super_block *, const char *, const char *, ...);
+extern void udf_warning(struct super_block *, const char *, const char *, ...);
+
+/* namei.c */
+extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *, struct fileIdentDesc *, struct udf_fileident_bh *, uint8_t *, uint8_t *);
+
+/* file.c */
+extern int udf_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+
+/* inode.c */
+extern struct inode *udf_iget(struct super_block *, kernel_lb_addr);
+extern int udf_sync_inode(struct inode *);
+extern void udf_expand_file_adinicb(struct inode *, int, int *);
+extern struct buffer_head * udf_expand_dir_adinicb(struct inode *, int *, int *);
+extern struct buffer_head * udf_bread(struct inode *, int, int, int *);
+extern void udf_truncate(struct inode *);
+extern void udf_read_inode(struct inode *);
+extern void udf_delete_inode(struct inode *);
+extern void udf_clear_inode(struct inode *);
+extern int udf_write_inode(struct inode *, int);
+extern long udf_block_map(struct inode *, long);
+extern int8_t inode_bmap(struct inode *, int, kernel_lb_addr *, uint32_t *, kernel_lb_addr *, uint32_t *, uint32_t *, struct buffer_head **);
+extern int8_t udf_add_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr, uint32_t, struct buffer_head **, int);
+extern int8_t udf_write_aext(struct inode *, kernel_lb_addr, int *, kernel_lb_addr, uint32_t, struct buffer_head *, int);
+extern int8_t udf_delete_aext(struct inode *, kernel_lb_addr, int, kernel_lb_addr, uint32_t, struct buffer_head *);
+extern int8_t udf_next_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr *, uint32_t *, struct buffer_head **, int);
+extern int8_t udf_current_aext(struct inode *, kernel_lb_addr *, int *, kernel_lb_addr *, uint32_t *, struct buffer_head **, int);
+
+/* misc.c */
+extern struct buffer_head *udf_tgetblk(struct super_block *, int);
+extern struct buffer_head *udf_tread(struct super_block *, int);
+extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t, uint32_t, uint8_t);
+extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t, uint8_t);
+extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t, uint32_t, uint16_t *);
+extern struct buffer_head *udf_read_ptagged(struct super_block *, kernel_lb_addr, uint32_t, uint16_t *);
+extern void udf_release_data(struct buffer_head *);
+extern void udf_update_tag(char *, int);
+extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
+
+/* lowlevel.c */
+extern unsigned int udf_get_last_session(struct super_block *);
+extern unsigned long udf_get_last_block(struct super_block *);
+
+/* partition.c */
+extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t, uint32_t);
+extern int udf_relocate_blocks(struct super_block *, long, long *);
+
+/* unicode.c */
+extern int udf_get_filename(struct super_block *, uint8_t *, uint8_t *, int);
+extern int udf_put_filename(struct super_block *, const uint8_t *, uint8_t *, int);
+extern int udf_build_ustr(struct ustr *, dstring *, int);
+extern int udf_CS0toUTF8(struct ustr *, struct ustr *);
+
+/* ialloc.c */
+extern void udf_free_inode(struct inode *);
+extern struct inode * udf_new_inode (struct inode *, int, int *);
+
+/* truncate.c */
+extern void udf_discard_prealloc(struct inode *);
+extern void udf_truncate_extents(struct inode *);
+
+/* balloc.c */
+extern void udf_free_blocks(struct super_block *, struct inode *, kernel_lb_addr, uint32_t, uint32_t);
+extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t, uint32_t, uint32_t);
+extern int udf_new_block(struct super_block *, struct inode *, uint16_t, uint32_t, int *);
+
+/* fsync.c */
+extern int udf_fsync_file(struct file *, struct dentry *, int);
+
+/* directory.c */
+extern struct fileIdentDesc * udf_fileident_read(struct inode *, loff_t *, struct udf_fileident_bh *, struct fileIdentDesc *, kernel_lb_addr *, uint32_t *, kernel_lb_addr *, uint32_t *, uint32_t *, struct buffer_head **);
+extern struct fileIdentDesc * udf_get_fileident(void * buffer, int bufsize, int * offset);
+extern long_ad * udf_get_filelongad(uint8_t *, int, int *, int);
+extern short_ad * udf_get_fileshortad(uint8_t *, int, int *, int);
+
+/* crc.c */
+extern uint16_t udf_crc(uint8_t *, uint32_t, uint16_t);
+
+/* udftime.c */
+extern time_t *udf_stamp_to_time(time_t *, long *, kernel_timestamp);
+extern kernel_timestamp *udf_time_to_stamp(kernel_timestamp *, struct timespec);
+
+#endif /* __UDF_DECL_H */