contrib/amd/amd/ops_cdfs.c

   1 /*
   2  * Copyright (c) 1997-1999 Erez Zadok
   3  * Copyright (c) 1990 Jan-Simon Pendry
   4  * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
   5  * Copyright (c) 1990 The Regents of the University of California.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * Jan-Simon Pendry at Imperial College, London.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. All advertising materials mentioning features or use of this software
  20  *    must display the following acknowledgment:
  21  *      This product includes software developed by the University of
  22  *      California, Berkeley and its contributors.
  23  * 4. Neither the name of the University nor the names of its contributors
  24  *    may be used to endorse or promote products derived from this software
  25  *    without specific prior written permission.
  26  *
  27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  37  * SUCH DAMAGE.
  38  *
  39  *      %W% (Berkeley) %G%
  40  *
  41  * $Id: ops_cdfs.c,v 1.3 1999/03/30 17:22:46 ezk Exp $
  42  *
  43  */
  44
  45 /*
  46  * High Sierra (CD-ROM) file system
  47  */
  48
  49 #ifdef HAVE_CONFIG_H
  50 # include <config.h>
  51 #endif /* HAVE_CONFIG_H */
  52 #include <am_defs.h>
  53 #include <amd.h>
  54
  55 /* forward declarations */
  56 static char *cdfs_match(am_opts *fo);
  57 static int cdfs_fmount(mntfs *mf);
  58 static int cdfs_fumount(mntfs *mf);
  59
  60 /*
  61  * Ops structure
  62  */
  63 am_ops cdfs_ops =
  64 {
  65   "cdfs",
  66   cdfs_match,
  67   0,                            /* cdfs_init */
  68   amfs_auto_fmount,
  69   cdfs_fmount,
  70   amfs_auto_fumount,
  71   cdfs_fumount,
  72   amfs_error_lookuppn,
  73   amfs_error_readdir,
  74   0,                            /* cdfs_readlink */
  75   0,                            /* cdfs_mounted */
  76   0,                            /* cdfs_umounted */
  77   find_amfs_auto_srvr,
  78   FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO
  79 };
  80
  81
  82 /*
  83  * CDFS needs remote filesystem.
  84  */
  85 static char *
  86 cdfs_match(am_opts *fo)
  87 {
  88   if (!fo->opt_dev) {
  89     plog(XLOG_USER, "cdfs: no source device specified");
  90     return 0;
  91   }
  92 #ifdef DEBUG
  93   dlog("CDFS: mounting device \"%s\" on \"%s\"",
  94        fo->opt_dev, fo->opt_fs);
  95 #endif /* DEBUG */
  96
  97   /*
  98    * Determine magic cookie to put in mtab
  99    */
 100   return strdup(fo->opt_dev);
 101 }
 102
 103
 104 static int
 105 mount_cdfs(char *dir, char *fs_name, char *opts)
 106 {
 107   cdfs_args_t cdfs_args;
 108   mntent_t mnt;
 109   int genflags, cdfs_flags;
 110
 111   /*
 112    * Figure out the name of the file system type.
 113    */
 114   MTYPE_TYPE type = MOUNT_TYPE_CDFS;
 115
 116   memset((voidp) &cdfs_args, 0, sizeof(cdfs_args)); /* Paranoid */
 117   cdfs_flags = 0;
 118
 119   /*
 120    * Fill in the mount structure
 121    */
 122   memset((voidp) &mnt, 0, sizeof(mnt));
 123   mnt.mnt_dir = dir;
 124   mnt.mnt_fsname = fs_name;
 125   mnt.mnt_type = MNTTAB_TYPE_CDFS;
 126   mnt.mnt_opts = opts;
 127
 128 #if defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM)
 129   if (hasmntopt(&mnt, MNTTAB_OPT_DEFPERM))
 130 # ifdef MNT2_CDFS_OPT_DEFPERM
 131     cdfs_flags |= MNT2_CDFS_OPT_DEFPERM;
 132 # else /* not MNT2_CDFS_OPT_DEFPERM */
 133     cdfs_flags &= ~MNT2_CDFS_OPT_NODEFPERM;
 134 # endif /* not MNT2_CDFS_OPT_DEFPERM */
 135 #endif /* defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM) */
 136
 137 #if defined(MNT2_CDFS_OPT_NODEFPERM) && defined(MNTTAB_OPT_NODEFPERM)
 138   if (hasmntopt(&mnt, MNTTAB_OPT_NODEFPERM))
 139     cdfs_flags |= MNT2_CDFS_OPT_NODEFPERM;
 140 #endif /* MNTTAB_OPT_NODEFPERM */
 141
 142 #if defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION)
 143   if (hasmntopt(&mnt, MNTTAB_OPT_NOVERSION))
 144     cdfs_flags |= MNT2_CDFS_OPT_NOVERSION;
 145 #endif /* defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION) */
 146
 147 #if defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP)
 148   if (hasmntopt(&mnt, MNTTAB_OPT_RRIP))
 149     cdfs_flags |= MNT2_CDFS_OPT_RRIP;
 150 #endif /* defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP) */
 151 #if defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP)
 152   if (hasmntopt(&mnt, MNTTAB_OPT_NORRIP))
 153     cdfs_flags |= MNT2_CDFS_OPT_NORRIP;
 154 #endif /* defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP) */
 155
 156 #if defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS)
 157   if (hasmntopt(&mnt, MNTTAB_OPT_GENS))
 158     cdfs_flags |= MNT2_CDFS_OPT_GENS;
 159 #endif /* defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS) */
 160 #if defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT)
 161   if (hasmntopt(&mnt, MNTTAB_OPT_EXTATT))
 162     cdfs_flags |= MNT2_CDFS_OPT_EXTATT;
 163 #endif /* defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT) */
 164
 165   genflags = compute_mount_flags(&mnt);
 166
 167 #ifdef HAVE_FIELD_CDFS_ARGS_T_FLAGS
 168   cdfs_args.flags = cdfs_flags;
 169 #endif /* HAVE_FIELD_CDFS_ARGS_T_FLAGS */
 170
 171 #ifdef HAVE_FIELD_CDFS_ARGS_T_ISO_FLAGS
 172   cdfs_args.iso_flags = genflags | cdfs_flags;
 173 #endif /* HAVE_FIELD_CDFS_ARGS_T_ISO_FLAGS */
 174
 175 #ifdef HAVE_FIELD_CDFS_ARGS_T_ISO_PGTHRESH
 176   cdfs_args.iso_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
 177 #endif /* HAVE_FIELD_CDFS_ARGS_T_ISO_PGTHRESH */
 178
 179 #ifdef HAVE_FIELD_CDFS_ARGS_T_FSPEC
 180   cdfs_args.fspec = fs_name;
 181 #endif /* HAVE_FIELD_CDFS_ARGS_T_FSPEC */
 182
 183 #ifdef HAVE_FIELD_CDFS_ARGS_T_NORRIP
 184   /* XXX: need to provide norrip mount opt */
 185   cdfs_args.norrip = 0;         /* use Rock-Ridge Protocol extensions */
 186 #endif /* HAVE_FIELD_CDFS_ARGS_T_NORRIP */
 187
 188 #ifdef HAVE_FIELD_CDFS_ARGS_T_SSECTOR
 189   /* XXX: need to provide ssector mount option */
 190   cdfs_args.ssector = 0;        /* use 1st session on disk */
 191 #endif /* HAVE_FIELD_CDFS_ARGS_T_SSECTOR */
 192
 193   /*
 194    * Call generic mount routine
 195    */
 196   return mount_fs(&mnt, genflags, (caddr_t) &cdfs_args, 0, type, 0, NULL, mnttab_file_name);
 197 }
 198
 199
 200 static int
 201 cdfs_fmount(mntfs *mf)
 202 {
 203   int error;
 204
 205   error = mount_cdfs(mf->mf_mount, mf->mf_info, mf->mf_mopts);
 206   if (error) {
 207     errno = error;
 208     plog(XLOG_ERROR, "mount_cdfs: %m");
 209     return error;
 210   }
 211   return 0;
 212 }
 213
 214
 215 static int
 216 cdfs_fumount(mntfs *mf)
 217 {
 218   return UMOUNT_FS(mf->mf_mount, mnttab_file_name);
 219 }