include/linux/nfs4_mount.h

   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
  21 struct nfs_string {
  22         unsigned int len;
  23         const char __user * data;
  24 };
  25
  26 struct 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_FLAGMASK     0xFFFF
  69
  70 #endif