Home | History | Annotate | Line # | Download | only in amd
      1 /*	$NetBSD: ops_cdfs.c,v 1.4 2015/01/17 17:46:31 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1997-2014 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. Neither the name of the University nor the names of its contributors
     22  *    may be used to endorse or promote products derived from this software
     23  *    without specific prior written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     35  * SUCH DAMAGE.
     36  *
     37  *
     38  * File: am-utils/amd/ops_cdfs.c
     39  *
     40  */
     41 
     42 /*
     43  * High Sierra (CD-ROM) file system
     44  */
     45 
     46 #ifdef HAVE_CONFIG_H
     47 # include <config.h>
     48 #endif /* HAVE_CONFIG_H */
     49 #include <am_defs.h>
     50 #include <amd.h>
     51 
     52 /* forward declarations */
     53 static char *cdfs_match(am_opts *fo);
     54 static int cdfs_mount(am_node *am, mntfs *mf);
     55 static int cdfs_umount(am_node *am, mntfs *mf);
     56 
     57 /*
     58  * Ops structure
     59  */
     60 am_ops cdfs_ops =
     61 {
     62   "cdfs",
     63   cdfs_match,
     64   0,				/* cdfs_init */
     65   cdfs_mount,
     66   cdfs_umount,
     67   amfs_error_lookup_child,
     68   amfs_error_mount_child,
     69   amfs_error_readdir,
     70   0,				/* cdfs_readlink */
     71   0,				/* cdfs_mounted */
     72   0,				/* cdfs_umounted */
     73   amfs_generic_find_srvr,
     74   0,				/* cdfs_get_wchan */
     75   FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO,	/* nfs_fs_flags */
     76 #ifdef HAVE_FS_AUTOFS
     77   AUTOFS_CDFS_FS_FLAGS,
     78 #endif /* HAVE_FS_AUTOFS */
     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   dlog("CDFS: mounting device \"%s\" on \"%s\"",
     93        fo->opt_dev, fo->opt_fs);
     94 
     95   /*
     96    * Determine magic cookie to put in mtab
     97    */
     98   return xstrdup(fo->opt_dev);
     99 }
    100 
    101 
    102 static int
    103 mount_cdfs(char *mntdir, char *fs_name, char *opts, int on_autofs)
    104 {
    105   cdfs_args_t cdfs_args;
    106   mntent_t mnt;
    107   int genflags, cdfs_flags, retval;
    108 
    109   /*
    110    * Figure out the name of the file system type.
    111    */
    112   MTYPE_TYPE type = MOUNT_TYPE_CDFS;
    113 
    114   memset((voidp) &cdfs_args, 0, sizeof(cdfs_args)); /* Paranoid */
    115   cdfs_flags = 0;
    116 
    117   /*
    118    * Fill in the mount structure
    119    */
    120   memset((voidp) &mnt, 0, sizeof(mnt));
    121   mnt.mnt_dir = mntdir;
    122   mnt.mnt_fsname = fs_name;
    123   mnt.mnt_type = MNTTAB_TYPE_CDFS;
    124   mnt.mnt_opts = opts;
    125 
    126 #if defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM)
    127   if (amu_hasmntopt(&mnt, MNTTAB_OPT_DEFPERM))
    128 # ifdef MNT2_CDFS_OPT_DEFPERM
    129     cdfs_flags |= MNT2_CDFS_OPT_DEFPERM;
    130 # else /* not MNT2_CDFS_OPT_DEFPERM */
    131     cdfs_flags &= ~MNT2_CDFS_OPT_NODEFPERM;
    132 # endif /* not MNT2_CDFS_OPT_DEFPERM */
    133 #endif /* defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM) */
    134 
    135 #if defined(MNT2_CDFS_OPT_NODEFPERM) && defined(MNTTAB_OPT_NODEFPERM)
    136   if (amu_hasmntopt(&mnt, MNTTAB_OPT_NODEFPERM))
    137     cdfs_flags |= MNT2_CDFS_OPT_NODEFPERM;
    138 #endif /* MNTTAB_OPT_NODEFPERM */
    139 
    140 #if defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION)
    141   if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOVERSION))
    142     cdfs_flags |= MNT2_CDFS_OPT_NOVERSION;
    143 #endif /* defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION) */
    144 
    145 #if defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP)
    146   if (amu_hasmntopt(&mnt, MNTTAB_OPT_RRIP))
    147     cdfs_flags |= MNT2_CDFS_OPT_RRIP;
    148 #endif /* defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP) */
    149 
    150 #if defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP)
    151   if (amu_hasmntopt(&mnt, MNTTAB_OPT_NORRIP))
    152     cdfs_flags |= MNT2_CDFS_OPT_NORRIP;
    153 #endif /* defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP) */
    154 
    155 #if defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS)
    156   if (amu_hasmntopt(&mnt, MNTTAB_OPT_GENS))
    157     cdfs_flags |= MNT2_CDFS_OPT_GENS;
    158 #endif /* defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS) */
    159 
    160 #if defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT)
    161   if (amu_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 #if defined(MNT2_CDFS_OPT_NOCASETRANS) && defined(MNTTAB_OPT_NOCASETRANS)
    166   if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOCASETRANS))
    167     cdfs_flags |= MNT2_CDFS_OPT_NOCASETRANS;
    168 #endif /* defined(MNT2_CDFS_OPT_NOCASETRANS) && defined(MNTTAB_OPT_NOCASETRANS) */
    169 
    170 #if defined(MNT2_CDFS_OPT_NOJOLIET) && defined(MNTTAB_OPT_NOJOLIET)
    171   if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOJOLIET))
    172     cdfs_flags |= MNT2_CDFS_OPT_NOJOLIET;
    173 #endif /* defined(MNT2_CDFS_OPT_NOJOLIET) && defined(MNTTAB_OPT_NOJOLIET) */
    174 
    175 #if defined(MNT2_CDFS_OPT_RRCASEINS) && defined(MNTTAB_OPT_RRCASEINS)
    176   if (amu_hasmntopt(&mnt, MNTTAB_OPT_RRCASEINS))
    177     cdfs_flags |= MNT2_CDFS_OPT_RRCASEINS;
    178 #endif /* defined(MNT2_CDFS_OPT_RRCASEINS) && defined(MNTTAB_OPT_RRCASEINS) */
    179 
    180   genflags = compute_mount_flags(&mnt);
    181 #ifdef HAVE_FS_AUTOFS
    182   if (on_autofs)
    183     genflags |= autofs_compute_mount_flags(&mnt);
    184 #endif /* HAVE_FS_AUTOFS */
    185 
    186 #ifdef HAVE_CDFS_ARGS_T_FLAGS
    187   cdfs_args.flags = cdfs_flags;
    188 #endif /* HAVE_CDFS_ARGS_T_FLAGS */
    189 
    190 #ifdef HAVE_CDFS_ARGS_T_ISO_FLAGS
    191   cdfs_args.iso_flags = genflags | cdfs_flags;
    192 #endif /* HAVE_CDFS_ARGS_T_ISO_FLAGS */
    193 
    194 #ifdef HAVE_CDFS_ARGS_T_ISO_PGTHRESH
    195   cdfs_args.iso_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
    196 #endif /* HAVE_CDFS_ARGS_T_ISO_PGTHRESH */
    197 
    198 #ifdef HAVE_CDFS_ARGS_T_NORRIP
    199   /* XXX: need to provide norrip mount opt */
    200   cdfs_args.norrip = 0;		/* use Rock-Ridge Protocol extensions */
    201 #endif /* HAVE_CDFS_ARGS_T_NORRIP */
    202 
    203 #ifdef HAVE_CDFS_ARGS_T_SSECTOR
    204   /* XXX: need to provide ssector mount option */
    205   cdfs_args.ssector = 0;	/* use 1st session on disk */
    206 #endif /* HAVE_CDFS_ARGS_T_SSECTOR */
    207 
    208 #ifdef HAVE_CDFS_ARGS_T_FSPEC
    209   cdfs_args.fspec = fs_name;
    210 #endif /* HAVE_CDFS_ARGS_T_FSPEC */
    211 
    212   /*
    213    * Call generic mount routine
    214    */
    215   retval = mount_fs(&mnt, genflags, (caddr_t) &cdfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
    216 
    217   return retval;
    218 }
    219 
    220 
    221 static int
    222 cdfs_mount(am_node *am, mntfs *mf)
    223 {
    224   int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
    225   int error;
    226 
    227   error = mount_cdfs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
    228   if (error) {
    229     errno = error;
    230     plog(XLOG_ERROR, "mount_cdfs: %m");
    231     return error;
    232   }
    233   return 0;
    234 }
    235 
    236 
    237 static int
    238 cdfs_umount(am_node *am, mntfs *mf)
    239 {
    240   int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
    241 
    242   return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
    243 }
    244