root/include/linux/nfs_mount.h

INCLUDED FROM

#ifndef _LINUX_NFS_MOUNT_H
#define _LINUX_NFS_MOUNT_H

/*
 *  linux/include/linux/nfs_mount.h
 *
 *  Copyright (C) 1992  Rick Sladkey
 *
 *  structure passed from user-space to kernel-space during an nfs mount
 */
#include <linux/in.h>
#include <linux/nfs.h>
#include <linux/nfs2.h>
#include <linux/nfs3.h>

/*
 * WARNING!  Do not delete or change the order of these fields.  If
 * a new field is required then add it to the end.  The version field
 * tracks which fields are present.  This will ensure some measure of
 * mount-to-kernel version compatibility.  Some of these aren't used yet
 * but here they are anyway.
 */
#define NFS_MOUNT_VERSION       6
#define NFS_MAX_CONTEXT_LEN     256

struct nfs_mount_data {
        int             version;                /* 1 */
        int             fd;                     /* 1 */
        struct nfs2_fh  old_root;               /* 1 */
        int             flags;                  /* 1 */
        int             rsize;                  /* 1 */
        int             wsize;                  /* 1 */
        int             timeo;                  /* 1 */
        int             retrans;                /* 1 */
        int             acregmin;               /* 1 */
        int             acregmax;               /* 1 */
        int             acdirmin;               /* 1 */
        int             acdirmax;               /* 1 */
        struct sockaddr_in addr;                /* 1 */
        char            hostname[NFS_MAXNAMLEN + 1];            /* 1 */
        int             namlen;                 /* 2 */
        unsigned int    bsize;                  /* 3 */
        struct nfs3_fh  root;                   /* 4 */
        int             pseudoflavor;           /* 5 */
        char            context[NFS_MAX_CONTEXT_LEN + 1];       /* 6 */
};

/* bits in the flags field */

#define NFS_MOUNT_SOFT          0x0001  /* 1 */
#define NFS_MOUNT_INTR          0x0002  /* 1 */ /* now unused, but ABI */
#define NFS_MOUNT_SECURE        0x0004  /* 1 */
#define NFS_MOUNT_POSIX         0x0008  /* 1 */
#define NFS_MOUNT_NOCTO         0x0010  /* 1 */
#define NFS_MOUNT_NOAC          0x0020  /* 1 */
#define NFS_MOUNT_TCP           0x0040  /* 2 */
#define NFS_MOUNT_VER3          0x0080  /* 3 */
#define NFS_MOUNT_KERBEROS      0x0100  /* 3 */
#define NFS_MOUNT_NONLM         0x0200  /* 3 */
#define NFS_MOUNT_BROKEN_SUID   0x0400  /* 4 */
#define NFS_MOUNT_NOACL         0x0800  /* 4 */
#define NFS_MOUNT_STRICTLOCK    0x1000  /* reserved for NFSv4 */
#define NFS_MOUNT_SECFLAVOUR    0x2000  /* 5 */
#define NFS_MOUNT_NORDIRPLUS    0x4000  /* 5 */
#define NFS_MOUNT_UNSHARED      0x8000  /* 5 */
#define NFS_MOUNT_FLAGMASK      0xFFFF

#endif