1#ifndef _LINUX_NFS4_MOUNT_H
2#define _LINUX_NFS4_MOUNT_H
3
4/*
5 *  linux/include/linux/nfs4_mount.h
6 *
7 *  Copyright (C) 2002  Trond Myklebust
8 *
9 *  structure passed from user-space to kernel-space during an nfsv4 mount
10 */
11
12/*
13 * WARNING!  Do not delete or change the order of these fields.  If
14 * a new field is required then add it to the end.  The version field
15 * tracks which fields are present.  This will ensure some measure of
16 * mount-to-kernel version compatibility.  Some of these aren't used yet
17 * but here they are anyway.
18 */
19#define NFS4_MOUNT_VERSION	1
20
21struct nfs_string {
22	unsigned int len;
23	const char __user * data;
24};
25
26struct nfs4_mount_data {
27	int version;				/* 1 */
28	int flags;				/* 1 */
29	int rsize;				/* 1 */
30	int wsize;				/* 1 */
31	int timeo;				/* 1 */
32	int retrans;				/* 1 */
33	int acregmin;				/* 1 */
34	int acregmax;				/* 1 */
35	int acdirmin;				/* 1 */
36	int acdirmax;				/* 1 */
37
38	/* see the definition of 'struct clientaddr4' in RFC3010 */
39	struct nfs_string client_addr;		/* 1 */
40
41	/* Mount path */
42	struct nfs_string mnt_path;		/* 1 */
43
44	/* Server details */
45	struct nfs_string hostname;		/* 1 */
46	/* Server IP address */
47	unsigned int host_addrlen;		/* 1 */
48	struct sockaddr __user * host_addr;	/* 1 */
49
50	/* Transport protocol to use */
51	int proto;				/* 1 */
52
53	/* Pseudo-flavours to use for authentication. See RFC2623 */
54	int auth_flavourlen;			/* 1 */
55	int __user *auth_flavours;		/* 1 */
56};
57
58/* bits in the flags field */
59/* Note: the fields that correspond to existing NFSv2/v3 mount options
60 * 	 should mirror the values from include/linux/nfs_mount.h
61 */
62
63#define NFS4_MOUNT_SOFT		0x0001	/* 1 */
64#define NFS4_MOUNT_INTR		0x0002	/* 1 */
65#define NFS4_MOUNT_NOCTO	0x0010	/* 1 */
66#define NFS4_MOUNT_NOAC		0x0020	/* 1 */
67#define NFS4_MOUNT_STRICTLOCK	0x1000	/* 1 */
68#define NFS4_MOUNT_UNSHARED	0x8000	/* 1 */
69#define NFS4_MOUNT_FLAGMASK	0x9033
70
71#endif
72