1 #ifndef _LINUX_NFS_MOUNT_H
2 #define _LINUX_NFS_MOUNT_H
3 
4 /*
5  *  linux/include/linux/nfs_mount.h
6  *
7  *  Copyright (C) 1992  Rick Sladkey
8  *
9  *  structure passed from user-space to kernel-space during an nfs mount
10  */
11 #include <linux/in.h>
12 #include <linux/nfs.h>
13 
14 /*
15  * WARNING!  Do not delete or change the order of these fields.  If
16  * a new field is required then add it to the end.  The version field
17  * tracks which fields are present.  This will ensure some measure of
18  * mount-to-kernel version compatibility.  Some of these aren't used yet
19  * but here they are anyway.
20  */
21 #define NFS_MOUNT_VERSION	4
22 
23 struct nfs_mount_data {
24 	int		version;		/* 1 */
25 	int		fd;			/* 1 */
26 	struct nfs2_fh	old_root;		/* 1 */
27 	int		flags;			/* 1 */
28 	int		rsize;			/* 1 */
29 	int		wsize;			/* 1 */
30 	int		timeo;			/* 1 */
31 	int		retrans;		/* 1 */
32 	int		acregmin;		/* 1 */
33 	int		acregmax;		/* 1 */
34 	int		acdirmin;		/* 1 */
35 	int		acdirmax;		/* 1 */
36 	struct sockaddr_in addr;		/* 1 */
37 	char		hostname[256];		/* 1 */
38 	int		namlen;			/* 2 */
39 	unsigned int	bsize;			/* 3 */
40 	struct nfs_fh	root;			/* 4 */
41 };
42 
43 /* bits in the flags field */
44 
45 #define NFS_MOUNT_SOFT		0x0001	/* 1 */
46 #define NFS_MOUNT_INTR		0x0002	/* 1 */
47 #define NFS_MOUNT_SECURE	0x0004	/* 1 */
48 #define NFS_MOUNT_POSIX		0x0008	/* 1 */
49 #define NFS_MOUNT_NOCTO		0x0010	/* 1 */
50 #define NFS_MOUNT_NOAC		0x0020	/* 1 */
51 #define NFS_MOUNT_TCP		0x0040	/* 2 */
52 #define NFS_MOUNT_VER3		0x0080	/* 3 */
53 #define NFS_MOUNT_KERBEROS	0x0100	/* 3 */
54 #define NFS_MOUNT_NONLM		0x0200	/* 3 */
55 #define NFS_MOUNT_BROKEN_SUID	0x0400	/* 4 */
56 #define NFS_MOUNT_FLAGMASK	0xFFFF
57 
58 #endif
59