src/net/oncrpc/mount.c

   1 /*
   2  * Copyright (C) 2013 Marin Hannache <ipxe@mareo.fr>.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301, USA.
  18  */
  19
  20 #include <stdint.h>
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <assert.h>
  25 #include <errno.h>
  26 #include <libgen.h>
  27 #include <byteswap.h>
  28 #include <ipxe/time.h>
  29 #include <ipxe/iobuf.h>
  30 #include <ipxe/open.h>
  31 #include <ipxe/features.h>
  32 #include <ipxe/oncrpc.h>
  33 #include <ipxe/oncrpc_iob.h>
  34 #include <ipxe/nfs.h>
  35 #include <ipxe/mount.h>
  36
  37 /** @file
  38  *
  39  * NFS MOUNT protocol
  40  *
  41  */
  42
  43 /** MNT procedure number */
  44 #define MOUNT_MNT       1
  45 /** UMNT procedure number */
  46 #define MOUNT_UMNT      3
  47
  48 /**
  49  * Send a MNT request
  50  *
  51  * @v intf              Interface to send the request on
  52  * @v session           ONC RPC session
  53  * @v mountpoinrt       The path of the directory to mount.
  54  * @ret rc              Return status code
  55  */
  56 int mount_mnt ( struct interface *intf, struct oncrpc_session *session,
  57                 const char *mountpoint ) {
  58         struct oncrpc_field fields[] = {
  59                 ONCRPC_FIELD ( str, mountpoint ),
  60                 ONCRPC_FIELD_END,
  61         };
  62
  63         return oncrpc_call ( intf, session, MOUNT_MNT, fields );
  64 }
  65
  66 /**
  67  * Send a UMNT request
  68  *
  69  * @v intf              Interface to send the request on
  70  * @v session           ONC RPC session
  71  * @v mountpoinrt       The path of the directory to unmount.
  72  * @ret rc              Return status code
  73  */
  74 int mount_umnt ( struct interface *intf, struct oncrpc_session *session,
  75                  const char *mountpoint ) {
  76         struct oncrpc_field fields[] = {
  77                 ONCRPC_FIELD ( str, mountpoint ),
  78                 ONCRPC_FIELD_END,
  79         };
  80
  81         return oncrpc_call ( intf, session, MOUNT_UMNT, fields );
  82 }
  83
  84 /**
  85  * Parse an MNT reply
  86  *
  87  * @v mnt_reply         A structure where the data will be saved
  88  * @v reply             The ONC RPC reply to get data from
  89  * @ret rc              Return status code
  90  */
  91 int mount_get_mnt_reply ( struct mount_mnt_reply *mnt_reply,
  92                           struct oncrpc_reply *reply ) {
  93         if (  ! mnt_reply || ! reply )
  94                 return -EINVAL;
  95
  96         mnt_reply->status = oncrpc_iob_get_int ( reply->data );
  97
  98         switch ( mnt_reply->status )
  99         {
 100         case MNT3_OK:
 101                 break;
 102         case MNT3ERR_NOENT:
 103                 return -ENOENT;
 104         case MNT3ERR_IO:
 105                 return -EIO;
 106         case MNT3ERR_ACCES:
 107                 return -EACCES;
 108         case MNT3ERR_NOTDIR:
 109                 return -ENOTDIR;
 110         case MNT3ERR_NAMETOOLONG:
 111                 return -ENAMETOOLONG;
 112         default:
 113                 return -EPROTO;
 114         }
 115
 116         nfs_iob_get_fh ( reply->data, &mnt_reply->fh );
 117
 118         return 0;
 119 }