external/bsd/am-utils/dist/amd/ops_efs.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (c) 1997-2009 Erez Zadok
   5  * Copyright (c) 1990 Jan-Simon Pendry
   6  * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
   7  * Copyright (c) 1990 The Regents of the University of California.
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to Berkeley by
  11  * Jan-Simon Pendry at Imperial College, London.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  * 3. All advertising materials mentioning features or use of this software
  22  *    must display the following acknowledgment:
  23  *      This product includes software developed by the University of
  24  *      California, Berkeley and its contributors.
  25  * 4. Neither the name of the University nor the names of its contributors
  26  *    may be used to endorse or promote products derived from this software
  27  *    without specific prior written permission.
  28  *
  29  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  32  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  33  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  34  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  35  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  37  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  38  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  39  * SUCH DAMAGE.
  40  *
  41  *
  42  * File: am-utils/amd/ops_efs.c
  43  *
  44  */
  45
  46 /*
  47  * Irix UN*X file system: EFS (Extent File System)
  48  */
  49
  50 #ifdef HAVE_CONFIG_H
  51 # include <config.h>
  52 #endif /* HAVE_CONFIG_H */
  53 #include <am_defs.h>
  54 #include <amd.h>
  55
  56 /* forward declarations */
  57 static char *efs_match(am_opts *fo);
  58 static int efs_mount(am_node *am, mntfs *mf);
  59 static int efs_umount(am_node *am, mntfs *mf);
  60
  61 /*
  62  * Ops structure
  63  */
  64 am_ops efs_ops =
  65 {
  66   "efs",
  67   efs_match,
  68   0,                            /* efs_init */
  69   efs_mount,
  70   efs_umount,
  71   amfs_error_lookup_child,
  72   amfs_error_mount_child,
  73   amfs_error_readdir,
  74   0,                            /* efs_readlink */
  75   0,                            /* efs_mounted */
  76   0,                            /* efs_umounted */
  77   amfs_generic_find_srvr,
  78   0,                            /* efs_get_wchan */
  79   FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
  80 #ifdef HAVE_FS_AUTOFS
  81   AUTOFS_EFS_FS_FLAGS,
  82 #endif /* HAVE_FS_AUTOFS */
  83 };
  84
  85
  86 /*
  87  * EFS needs local filesystem and device.
  88  */
  89 static char *
  90 efs_match(am_opts *fo)
  91 {
  92
  93   if (!fo->opt_dev) {
  94     plog(XLOG_USER, "efs: no device specified");
  95     return 0;
  96   }
  97
  98   dlog("EFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
  99
 100   /*
 101    * Determine magic cookie to put in mtab
 102    */
 103   return strdup(fo->opt_dev);
 104 }
 105
 106
 107 static int
 108 mount_efs(char *mntdir, char *fs_name, char *opts, int on_autofs)
 109 {
 110   efs_args_t efs_args;
 111   mntent_t mnt;
 112   int flags;
 113
 114   /*
 115    * Figure out the name of the file system type.
 116    */
 117   MTYPE_TYPE type = MOUNT_TYPE_EFS;
 118
 119   memset((voidp) &efs_args, 0, sizeof(efs_args)); /* Paranoid */
 120
 121   /*
 122    * Fill in the mount structure
 123    */
 124   memset((voidp) &mnt, 0, sizeof(mnt));
 125   mnt.mnt_dir = mntdir;
 126   mnt.mnt_fsname = fs_name;
 127   mnt.mnt_type = MNTTAB_TYPE_EFS;
 128   mnt.mnt_opts = opts;
 129
 130   flags = compute_mount_flags(&mnt);
 131 #ifdef HAVE_FS_AUTOFS
 132   if (on_autofs)
 133     flags |= autofs_compute_mount_flags(&mnt);
 134 #endif /* HAVE_FS_AUTOFS */
 135
 136 #ifdef HAVE_EFS_ARGS_T_FLAGS
 137   efs_args.flags = 0;           /* XXX: fix this to correct flags */
 138 #endif /* HAVE_EFS_ARGS_T_FLAGS */
 139 #ifdef HAVE_EFS_ARGS_T_FSPEC
 140   efs_args.fspec = fs_name;
 141 #endif /* HAVE_EFS_ARGS_T_FSPEC */
 142 #if defined(HAVE_EFS_ARGS_T_VERSION) && defined(EFS_MNT_VERSION)
 143   efs_args.version = EFS_MNT_VERSION;
 144 #endif /* HAVE_EFS_ARGS_T_VERSION && EFS_MNT_VERSION */
 145
 146   /*
 147    * Call generic mount routine
 148    */
 149   return mount_fs(&mnt, flags, (caddr_t) &efs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
 150 }
 151
 152
 153 static int
 154 efs_mount(am_node *am, mntfs *mf)
 155 {
 156   int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
 157   int error;
 158
 159   error = mount_efs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
 160   if (error) {
 161     errno = error;
 162     plog(XLOG_ERROR, "mount_efs: %m");
 163     return error;
 164   }
 165
 166   return 0;
 167 }
 168
 169
 170 static int
 171 efs_umount(am_node *am, mntfs *mf)
 172 {
 173   int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
 174
 175   return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
 176 }
 177