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 */
55 static char *cdfs_match(am_opts *fo);
56 static int cdfs_mount(am_node *am, mntfs *mf);
57 static int cdfs_umount(am_node *am, mntfs *mf);
58
59 /*
60 * Ops structure
61 */
62 am_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 */
87 static char *
cdfs_match(am_opts * fo)88 cdfs_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
104 static int
mount_cdfs(char * mntdir,char * fs_name,char * opts,int on_autofs)105 mount_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
206 static int
cdfs_mount(am_node * am,mntfs * mf)207 cdfs_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
222 static int
cdfs_umount(am_node * am,mntfs * mf)223 cdfs_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