linux/include/linux/nfs4_mount.h
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   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
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