--- Net2/sys/mount.h	2018/04/24 18:03:58	1.1
+++ Net2/sys/mount.h	2018/04/24 18:16:46	1.1.1.3
@@ -30,9 +30,13 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)mount.h	7.22 (Berkeley) 6/3/91
+ *	from: @(#)mount.h	7.22 (Berkeley) 6/3/91
+ *	mount.h,v 1.11.2.1 1993/08/05 02:37:35 cgd Exp
  */
 
+#ifndef _SYS_MOUNT_H_
+#define _SYS_MOUNT_H_
+
 typedef quad fsid_t;			/* file system id type */
 
 /*
@@ -73,11 +77,16 @@ struct statfs {
  * File system types.
  */
 #define	MOUNT_NONE	0
-#define	MOUNT_UFS	1
-#define	MOUNT_NFS	2
-#define	MOUNT_MFS	3
-#define	MOUNT_PC	4
-#define	MOUNT_MAXTYPE	4
+#define	MOUNT_UFS	1		/* UNIX "Fast" Filesystem */
+#define	MOUNT_NFS	2		/* Network Filesystem */
+#define	MOUNT_MFS	3		/* Memory Filesystem */
+#define	MOUNT_MSDOS	4		/* MSDOS Filesystem */
+#define MOUNT_ISOFS	5		/* iso9660 cdrom */
+#define MOUNT_FDESC	6		/* /dev/fd filesystem */
+#define MOUNT_KERNFS	7		/* kernel variable filesystem */
+#define MOUNT_DEVFS	8		/* device node filesystem */
+#define MOUNT_AFS	9		/* AFS 3.x */
+#define	MOUNT_MAXTYPE	MOUNT_AFS
 
 /*
  * Structure per mounted file system.
@@ -105,6 +114,10 @@ struct mount {
 #define	MNT_NOEXEC	0x00000004	/* can't exec from filesystem */
 #define	MNT_NOSUID	0x00000008	/* don't honor setuid bits on fs */
 #define	MNT_NODEV	0x00000010	/* don't interpret special files */
+#define	MNT_UNION	0x00000020	/* union with underlying filesysem */
+#ifdef ISOFS
+#define ISOFSMNT_NORRIP	0x00000040	/* disable Rock Ridge Ext.*/
+#endif
 
 /*
  * exported mount flags.
@@ -217,7 +230,7 @@ struct mfs_args {
 };
 #endif MFS
 
-#ifdef NFS
+#if defined(NFSSERVER) || defined(NFSCLIENT)
 /*
  * File Handle (32 bytes for version 2), variable up to 1024 for version 3
  */
@@ -258,7 +271,18 @@ struct nfs_args {
 #define	NFSMNT_SPONGY	0x0400	/* spongy mount (soft for stat and lookup) */
 #define	NFSMNT_COMPRESS	0x0800	/* Compress nfs rpc xdr */
 #define	NFSMNT_LOCKBITS	(NFSMNT_SCKLOCK | NFSMNT_WANTSCK)
-#endif NFS
+#endif /* defined(NFSSERVER || defined(NFSCLIENT) */
+
+#ifdef MSDOSFS
+/*
+ *  Arguments to mount MSDOS filesystems.
+ */
+struct pcfs_args {
+	char *fspec;		/* blocks special holding the fs to mount */
+	int exflags;		/* mount flags				*/
+	uid_t exroot;		/* mapping for root uid			*/
+};
+#endif /* MSDOSFS */
 
 #ifdef KERNEL
 /*
@@ -286,3 +310,5 @@ int	unmount __P((const char *, int));
 __END_DECLS
 
 #endif /* KERNEL */
+
+#endif /* !_SYS_MOUNT_H_ */