external/bsd/am-utils/dist/amd/ops_ufs.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_ufs.c
  43  *
  44  */
  45
  46 /*
  47  * UN*X 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 *ufs_match(am_opts *fo);
  58 static int ufs_mount(am_node *am, mntfs *mf);
  59 static int ufs_umount(am_node *am, mntfs *mf);
  60
  61 /*
  62  * Ops structure
  63  */
  64 am_ops ufs_ops =
  65 {
  66 #ifndef __NetBSD__
  67   "ufs",
  68 #else
  69   "ffs",
  70 #endif
  71   ufs_match,
  72   0,                            /* ufs_init */
  73   ufs_mount,
  74   ufs_umount,
  75   amfs_error_lookup_child,
  76   amfs_error_mount_child,
  77   amfs_error_readdir,
  78   0,                            /* ufs_readlink */
  79   0,                            /* ufs_mounted */
  80   0,                            /* ufs_umounted */
  81   amfs_generic_find_srvr,
  82   0,                            /* ufs_get_wchan */
  83   FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
  84 #ifdef HAVE_FS_AUTOFS
  85   AUTOFS_UFS_FS_FLAGS,
  86 #endif /* HAVE_FS_AUTOFS */
  87 };
  88
  89
  90 /*
  91  * UFS needs local filesystem and device.
  92  */
  93 static char *
  94 ufs_match(am_opts *fo)
  95 {
  96
  97   if (!fo->opt_dev) {
  98     plog(XLOG_USER, "ufs: no device specified");
  99     return 0;
 100   }
 101
 102   dlog("UFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
 103
 104   /*
 105    * Determine magic cookie to put in mtab
 106    */
 107   return strdup(fo->opt_dev);
 108 }
 109
 110
 111 static int
 112 mount_ufs(char *mntdir, char *fs_name, char *opts, int on_autofs)
 113 {
 114   ufs_args_t ufs_args;
 115   mntent_t mnt;
 116   int genflags;
 117
 118   /*
 119    * Figure out the name of the file system type.
 120    */
 121   MTYPE_TYPE type = MOUNT_TYPE_UFS;
 122
 123   memset((voidp) &ufs_args, 0, sizeof(ufs_args)); /* Paranoid */
 124
 125   /*
 126    * Fill in the mount structure
 127    */
 128   memset((voidp) &mnt, 0, sizeof(mnt));
 129   mnt.mnt_dir = mntdir;
 130   mnt.mnt_fsname = fs_name;
 131   mnt.mnt_type = MNTTAB_TYPE_UFS;
 132   mnt.mnt_opts = opts;
 133
 134   genflags = compute_mount_flags(&mnt);
 135 #ifdef HAVE_FS_AUTOFS
 136   if (on_autofs)
 137     genflags |= autofs_compute_mount_flags(&mnt);
 138 #endif /* HAVE_FS_AUTOFS */
 139
 140 #ifdef HAVE_UFS_ARGS_T_FLAGS
 141   ufs_args.flags = genflags;    /* XXX: is this correct? */
 142 #endif /* HAVE_UFS_ARGS_T_FLAGS */
 143
 144 #ifdef HAVE_UFS_ARGS_T_UFS_FLAGS
 145   ufs_args.ufs_flags = genflags;
 146 #endif /* HAVE_UFS_ARGS_T_UFS_FLAGS */
 147
 148 #ifdef HAVE_UFS_ARGS_T_FSPEC
 149   ufs_args.fspec = fs_name;
 150 #endif /* HAVE_UFS_ARGS_T_FSPEC */
 151
 152 #ifdef HAVE_UFS_ARGS_T_UFS_PGTHRESH
 153   ufs_args.ufs_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
 154 #endif /* HAVE_UFS_ARGS_T_UFS_PGTHRESH */
 155
 156   /*
 157    * Call generic mount routine
 158    */
 159   return mount_fs(&mnt, genflags, (caddr_t) &ufs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
 160 }
 161
 162
 163 static int
 164 ufs_mount(am_node *am, mntfs *mf)
 165 {
 166   int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
 167   int error;
 168
 169   error = mount_ufs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
 170   if (error) {
 171     errno = error;
 172     plog(XLOG_ERROR, "mount_ufs: %m");
 173     return error;
 174   }
 175
 176   return 0;
 177 }
 178
 179
 180 static int
 181 ufs_umount(am_node *am, mntfs *mf)
 182 {
 183   int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
 184
 185   return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
 186 }