include/uapi/linux/nfs_mount.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _LINUX_NFS_MOUNT_H
   3 #define _LINUX_NFS_MOUNT_H
   4
   5 /*
   6  *  linux/include/linux/nfs_mount.h
   7  *
   8  *  Copyright (C) 1992  Rick Sladkey
   9  *
  10  *  structure passed from user-space to kernel-space during an nfs mount
  11  */
  12 #include <linux/in.h>
  13 #include <linux/nfs.h>
  14 #include <linux/nfs2.h>
  15 #include <linux/nfs3.h>
  16
  17 /*
  18  * WARNING!  Do not delete or change the order of these fields.  If
  19  * a new field is required then add it to the end.  The version field
  20  * tracks which fields are present.  This will ensure some measure of
  21  * mount-to-kernel version compatibility.  Some of these aren't used yet
  22  * but here they are anyway.
  23  */
  24 #define NFS_MOUNT_VERSION       6
  25 #define NFS_MAX_CONTEXT_LEN     256
  26
  27 struct nfs_mount_data {
  28         int             version;                /* 1 */
  29         int             fd;                     /* 1 */
  30         struct nfs2_fh  old_root;               /* 1 */
  31         int             flags;                  /* 1 */
  32         int             rsize;                  /* 1 */
  33         int             wsize;                  /* 1 */
  34         int             timeo;                  /* 1 */
  35         int             retrans;                /* 1 */
  36         int             acregmin;               /* 1 */
  37         int             acregmax;               /* 1 */
  38         int             acdirmin;               /* 1 */
  39         int             acdirmax;               /* 1 */
  40         struct sockaddr_in addr;                /* 1 */
  41         char            hostname[NFS_MAXNAMLEN + 1];            /* 1 */
  42         int             namlen;                 /* 2 */
  43         unsigned int    bsize;                  /* 3 */
  44         struct nfs3_fh  root;                   /* 4 */
  45         int             pseudoflavor;           /* 5 */
  46         char            context[NFS_MAX_CONTEXT_LEN + 1];       /* 6 */
  47 };
  48
  49 /* bits in the flags field visible to user space */
  50
  51 #define NFS_MOUNT_SOFT          0x0001  /* 1 */
  52 #define NFS_MOUNT_INTR          0x0002  /* 1 */ /* now unused, but ABI */
  53 #define NFS_MOUNT_SECURE        0x0004  /* 1 */
  54 #define NFS_MOUNT_POSIX         0x0008  /* 1 */
  55 #define NFS_MOUNT_NOCTO         0x0010  /* 1 */
  56 #define NFS_MOUNT_NOAC          0x0020  /* 1 */
  57 #define NFS_MOUNT_TCP           0x0040  /* 2 */
  58 #define NFS_MOUNT_VER3          0x0080  /* 3 */
  59 #define NFS_MOUNT_KERBEROS      0x0100  /* 3 */
  60 #define NFS_MOUNT_NONLM         0x0200  /* 3 */
  61 #define NFS_MOUNT_BROKEN_SUID   0x0400  /* 4 */
  62 #define NFS_MOUNT_NOACL         0x0800  /* 4 */
  63 #define NFS_MOUNT_STRICTLOCK    0x1000  /* reserved for NFSv4 */
  64 #define NFS_MOUNT_SECFLAVOUR    0x2000  /* 5 non-text parsed mount data only */
  65 #define NFS_MOUNT_NORDIRPLUS    0x4000  /* 5 */
  66 #define NFS_MOUNT_UNSHARED      0x8000  /* 5 */
  67 #define NFS_MOUNT_FLAGMASK      0xFFFF
  68
  69 /* The following are for internal use only */
  70 #define NFS_MOUNT_LOOKUP_CACHE_NONEG    0x10000
  71 #define NFS_MOUNT_LOOKUP_CACHE_NONE     0x20000
  72 #define NFS_MOUNT_NORESVPORT            0x40000
  73 #define NFS_MOUNT_LEGACY_INTERFACE      0x80000
  74
  75 #define NFS_MOUNT_LOCAL_FLOCK   0x100000
  76 #define NFS_MOUNT_LOCAL_FCNTL   0x200000
  77
  78 #endif