ops_cdfs.c revision 174294
1/* 2 * Copyright (c) 1997-2006 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 * 40 * File: am-utils/amd/ops_cdfs.c 41 * 42 */ 43 44/* 45 * High Sierra (CD-ROM) file system 46 */ 47 48#ifdef HAVE_CONFIG_H 49# include <config.h> 50#endif /* HAVE_CONFIG_H */ 51#include <am_defs.h> 52#include <amd.h> 53 54/* forward declarations */ 55static char *cdfs_match(am_opts *fo); 56static int cdfs_mount(am_node *am, mntfs *mf); 57static int cdfs_umount(am_node *am, mntfs *mf); 58 59/* 60 * Ops structure 61 */ 62am_ops cdfs_ops = 63{ 64 "cdfs", 65 cdfs_match, 66 0, /* cdfs_init */ 67 cdfs_mount, 68 cdfs_umount, 69 amfs_error_lookup_child, 70 amfs_error_mount_child, 71 amfs_error_readdir, 72 0, /* cdfs_readlink */ 73 0, /* cdfs_mounted */ 74 0, /* cdfs_umounted */ 75 amfs_generic_find_srvr, 76 0, /* cdfs_get_wchan */ 77 FS_MKMNT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */ 78#ifdef HAVE_FS_AUTOFS 79 AUTOFS_CDFS_FS_FLAGS, 80#endif /* HAVE_FS_AUTOFS */ 81}; 82 83 84/* 85 * CDFS needs remote filesystem. 86 */ 87static char * 88cdfs_match(am_opts *fo) 89{ 90 if (!fo->opt_dev) { 91 plog(XLOG_USER, "cdfs: no source device specified"); 92 return 0; 93 } 94 dlog("CDFS: mounting device \"%s\" on \"%s\"", 95 fo->opt_dev, fo->opt_fs); 96 97 /* 98 * Determine magic cookie to put in mtab 99 */ 100 return strdup(fo->opt_dev); 101} 102 103 104static int 105mount_cdfs(char *mntdir, char *fs_name, char *opts, int on_autofs) 106{ 107 cdfs_args_t cdfs_args; 108 mntent_t mnt; 109 int genflags, cdfs_flags, retval; 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 = mntdir; 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 (amu_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 (amu_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 (amu_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 (amu_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 (amu_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 (amu_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 (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 genflags = compute_mount_flags(&mnt); 166#ifdef HAVE_FS_AUTOFS 167 if (on_autofs) 168 genflags |= autofs_compute_mount_flags(&mnt); 169#endif /* HAVE_FS_AUTOFS */ 170 171#ifdef HAVE_CDFS_ARGS_T_FLAGS 172 cdfs_args.flags = cdfs_flags; 173#endif /* HAVE_CDFS_ARGS_T_FLAGS */ 174 175#ifdef HAVE_CDFS_ARGS_T_ISO_FLAGS 176 cdfs_args.iso_flags = genflags | cdfs_flags; 177#endif /* HAVE_CDFS_ARGS_T_ISO_FLAGS */ 178 179#ifdef HAVE_CDFS_ARGS_T_ISO_PGTHRESH 180 cdfs_args.iso_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH); 181#endif /* HAVE_CDFS_ARGS_T_ISO_PGTHRESH */ 182 183#ifdef HAVE_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_CDFS_ARGS_T_NORRIP */ 187 188#ifdef HAVE_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_CDFS_ARGS_T_SSECTOR */ 192 193#ifdef HAVE_CDFS_ARGS_T_FSPEC 194 cdfs_args.fspec = fs_name; 195#endif /* HAVE_CDFS_ARGS_T_FSPEC */ 196 197 /* 198 * Call generic mount routine 199 */ 200 retval = mount_fs(&mnt, genflags, (caddr_t) &cdfs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs); 201 202 return retval; 203} 204 205 206static int 207cdfs_mount(am_node *am, mntfs *mf) 208{ 209 int on_autofs = mf->mf_flags & MFF_ON_AUTOFS; 210 int error; 211 212 error = mount_cdfs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs); 213 if (error) { 214 errno = error; 215 plog(XLOG_ERROR, "mount_cdfs: %m"); 216 return error; 217 } 218 return 0; 219} 220 221 222static int 223cdfs_umount(am_node *am, mntfs *mf) 224{ 225 int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0; 226 227 return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags); 228} 229