nfs4_mount.h

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#ifndef _LINUX_NFS4_MOUNT_H
#define _LINUX_NFS4_MOUNT_H

/*
 *  linux/include/linux/nfs4_mount.h
 *
 *  Copyright (C) 2002  Trond Myklebust
 *
 *  structure passed from user-space to kernel-space during an nfsv4 mount
 */

/*
 * 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 NFS4_MOUNT_VERSION  1

struct nfs_string {
    unsigned int len;
    const char __user * data;
};

struct nfs4_mount_data {
    int version;                /* 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 */

    /* see the definition of 'struct clientaddr4' in RFC3010 */
    struct nfs_string client_addr;      /* 1 */

    /* Mount path */
    struct nfs_string mnt_path;     /* 1 */

    /* Server details */
    struct nfs_string hostname;     /* 1 */
    /* Server IP address */
    unsigned int host_addrlen;      /* 1 */
    struct sockaddr __user * host_addr; /* 1 */

    /* Transport protocol to use */
    int proto;              /* 1 */

    /* Pseudo-flavours to use for authentication. See RFC2623 */
    int auth_flavourlen;            /* 1 */
    int __user *auth_flavours;      /* 1 */
};

/* bits in the flags field */
/* Note: the fields that correspond to existing NFSv2/v3 mount options
 *   should mirror the values from include/linux/nfs_mount.h
 */

#define NFS4_MOUNT_SOFT     0x0001  /* 1 */
#define NFS4_MOUNT_INTR     0x0002  /* 1 */
#define NFS4_MOUNT_NOCTO    0x0010  /* 1 */
#define NFS4_MOUNT_NOAC     0x0020  /* 1 */
#define NFS4_MOUNT_STRICTLOCK   0x1000  /* 1 */
#define NFS4_MOUNT_UNSHARED 0x8000  /* 1 */
#define NFS4_MOUNT_FLAGMASK 0x9033

#endif