1/* 2 * Copyright (c) 1997-2014 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. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * 36 * File: am-utils/amd/ops_cdfs.c 37 * 38 */ 39 40/* 41 * High Sierra (CD-ROM) file system 42 */ 43 44#ifdef HAVE_CONFIG_H 45# include <config.h> 46#endif /* HAVE_CONFIG_H */ 47#include <am_defs.h> 48#include <amd.h> 49 50/* forward declarations */ 51static char *cdfs_match(am_opts *fo); 52static int cdfs_mount(am_node *am, mntfs *mf); 53static int cdfs_umount(am_node *am, mntfs *mf); 54 55/* 56 * Ops structure 57 */ 58am_ops cdfs_ops = 59{ 60 "cdfs", 61 cdfs_match, 62 0, /* cdfs_init */ 63 cdfs_mount, 64 cdfs_umount, 65 amfs_error_lookup_child, 66 amfs_error_mount_child, 67 amfs_error_readdir, 68 0, /* cdfs_readlink */ 69 0, /* cdfs_mounted */ 70 0, /* cdfs_umounted */ 71 amfs_generic_find_srvr, 72 0, /* cdfs_get_wchan */ 73 FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 74#ifdef HAVE_FS_AUTOFS 75 AUTOFS_CDFS_FS_FLAGS, 76#endif /* HAVE_FS_AUTOFS */ 77}; 78 79 80/* 81 * CDFS needs remote filesystem. 82 */ 83static char * 84cdfs_match(am_opts *fo) 85{ 86 if (!fo->opt_dev) { 87 plog(XLOG_USER, "cdfs: no source device specified"); 88 return 0; 89 } 90 dlog("CDFS: mounting device \"%s\" on \"%s\"", 91 fo->opt_dev, fo->opt_fs); 92 93 /* 94 * Determine magic cookie to put in mtab 95 */ 96 return xstrdup(fo->opt_dev); 97} 98 99 100static int 101mount_cdfs(char *mntdir, char *fs_name, char *opts, int on_autofs) 102{ 103 cdfs_args_t cdfs_args; 104 mntent_t mnt; 105 int genflags, cdfs_flags, retval; 106 107 /* 108 * Figure out the name of the file system type. 109 */ 110 MTYPE_TYPE type = MOUNT_TYPE_CDFS; 111 112 memset((voidp) &cdfs_args, 0, sizeof(cdfs_args)); /* Paranoid */ 113 cdfs_flags = 0; 114 115 /* 116 * Fill in the mount structure 117 */ 118 memset((voidp) &mnt, 0, sizeof(mnt)); 119 mnt.mnt_dir = mntdir; 120 mnt.mnt_fsname = fs_name; 121 mnt.mnt_type = MNTTAB_TYPE_CDFS; 122 mnt.mnt_opts = opts; 123 124#if defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM) 125 if (amu_hasmntopt(&mnt, MNTTAB_OPT_DEFPERM)) 126# ifdef MNT2_CDFS_OPT_DEFPERM 127 cdfs_flags |= MNT2_CDFS_OPT_DEFPERM; 128# else /* not MNT2_CDFS_OPT_DEFPERM */ 129 cdfs_flags &= ~MNT2_CDFS_OPT_NODEFPERM; 130# endif /* not MNT2_CDFS_OPT_DEFPERM */ 131#endif /* defined(MNT2_CDFS_OPT_DEFPERM) && defined(MNTTAB_OPT_DEFPERM) */ 132 133#if defined(MNT2_CDFS_OPT_NODEFPERM) && defined(MNTTAB_OPT_NODEFPERM) 134 if (amu_hasmntopt(&mnt, MNTTAB_OPT_NODEFPERM)) 135 cdfs_flags |= MNT2_CDFS_OPT_NODEFPERM; 136#endif /* MNTTAB_OPT_NODEFPERM */ 137 138#if defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION) 139 if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOVERSION)) 140 cdfs_flags |= MNT2_CDFS_OPT_NOVERSION; 141#endif /* defined(MNT2_CDFS_OPT_NOVERSION) && defined(MNTTAB_OPT_NOVERSION) */ 142 143#if defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP) 144 if (amu_hasmntopt(&mnt, MNTTAB_OPT_RRIP)) 145 cdfs_flags |= MNT2_CDFS_OPT_RRIP; 146#endif /* defined(MNT2_CDFS_OPT_RRIP) && defined(MNTTAB_OPT_RRIP) */ 147 148#if defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP) 149 if (amu_hasmntopt(&mnt, MNTTAB_OPT_NORRIP)) 150 cdfs_flags |= MNT2_CDFS_OPT_NORRIP; 151#endif /* defined(MNT2_CDFS_OPT_NORRIP) && defined(MNTTAB_OPT_NORRIP) */ 152 153#if defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS) 154 if (amu_hasmntopt(&mnt, MNTTAB_OPT_GENS)) 155 cdfs_flags |= MNT2_CDFS_OPT_GENS; 156#endif /* defined(MNT2_CDFS_OPT_GENS) && defined(MNTTAB_OPT_GENS) */ 157 158#if defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT) 159 if (amu_hasmntopt(&mnt, MNTTAB_OPT_EXTATT)) 160 cdfs_flags |= MNT2_CDFS_OPT_EXTATT; 161#endif /* defined(MNT2_CDFS_OPT_EXTATT) && defined(MNTTAB_OPT_EXTATT) */ 162 163#if defined(MNT2_CDFS_OPT_NOCASETRANS) && defined(MNTTAB_OPT_NOCASETRANS) 164 if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOCASETRANS)) 165 cdfs_flags |= MNT2_CDFS_OPT_NOCASETRANS; 166#endif /* defined(MNT2_CDFS_OPT_NOCASETRANS) && defined(MNTTAB_OPT_NOCASETRANS) */ 167 168#if defined(MNT2_CDFS_OPT_NOJOLIET) && defined(MNTTAB_OPT_NOJOLIET) 169 if (amu_hasmntopt(&mnt, MNTTAB_OPT_NOJOLIET)) 170 cdfs_flags |= MNT2_CDFS_OPT_NOJOLIET; 171#endif /* defined(MNT2_CDFS_OPT_NOJOLIET) && defined(MNTTAB_OPT_NOJOLIET) */ 172 173#if defined(MNT2_CDFS_OPT_RRCASEINS) && defined(MNTTAB_OPT_RRCASEINS) 174 if (amu_hasmntopt(&mnt, MNTTAB_OPT_RRCASEINS)) 175 cdfs_flags |= MNT2_CDFS_OPT_RRCASEINS; 176#endif /* defined(MNT2_CDFS_OPT_RRCASEINS) && defined(MNTTAB_OPT_RRCASEINS) */ 177 178 genflags = compute_mount_flags(&mnt); 179#ifdef HAVE_FS_AUTOFS 180 if (on_autofs) 181 genflags |= autofs_compute_mount_flags(&mnt); 182#endif /* HAVE_FS_AUTOFS */ 183 184#ifdef HAVE_CDFS_ARGS_T_FLAGS 185 cdfs_args.flags = cdfs_flags; 186#endif /* HAVE_CDFS_ARGS_T_FLAGS */ 187 188#ifdef HAVE_CDFS_ARGS_T_ISO_FLAGS 189 cdfs_args.iso_flags = genflags | cdfs_flags; 190#endif /* HAVE_CDFS_ARGS_T_ISO_FLAGS */ 191 192#ifdef HAVE_CDFS_ARGS_T_ISO_PGTHRESH 193 cdfs_args.iso_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH); 194#endif /* HAVE_CDFS_ARGS_T_ISO_PGTHRESH */ 195 196#ifdef HAVE_CDFS_ARGS_T_NORRIP 197 /* XXX: need to provide norrip mount opt */ 198 cdfs_args.norrip = 0; /* use Rock-Ridge Protocol extensions */ 199#endif /* HAVE_CDFS_ARGS_T_NORRIP */ 200 201#ifdef HAVE_CDFS_ARGS_T_SSECTOR 202 /* XXX: need to provide ssector mount option */ 203 cdfs_args.ssector = 0; /* use 1st session on disk */ 204#endif /* HAVE_CDFS_ARGS_T_SSECTOR */ 205 206#ifdef HAVE_CDFS_ARGS_T_FSPEC 207 cdfs_args.fspec = fs_name; 208#endif /* HAVE_CDFS_ARGS_T_FSPEC */ 209 210 /* 211 * Call generic mount routine 212 */ 213 retval = mount_fs(&mnt, genflags, (caddr_t) &cdfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 214 215 return retval; 216} 217 218 219static int 220cdfs_mount(am_node *am, mntfs *mf) 221{ 222 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 223 int error; 224 225 error = mount_cdfs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); 226 if (error) { 227 errno = error; 228 plog(XLOG_ERROR, "mount_cdfs: %m"); 229 return error; 230 } 231 return 0; 232} 233 234 235static int 236cdfs_umount(am_node *am, mntfs *mf) 237{ 238 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 239 240 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 241} 242