annotate usr/src/uts/common/fs/hsfs/hsfs_vfsops.c @ 1488:196daa2cf3db

PSARC/2006/034 fsstat PSARC/2006/116 fsstat update 6335370 RFE: Need generic file system observability (e.g., fsstat)
author rsb
date Sat, 25 Feb 2006 01:33:06 -0800
parents 1aef26bcfa0e
children 8188e64c9073
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
2 * CDDL HEADER START
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
3 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
4 * The contents of this file are subject to the terms of the
1025
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
5 * Common Development and Distribution License (the "License").
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
6 * You may not use this file except in compliance with the License.
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
7 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
9 * or http://www.opensolaris.org/os/licensing.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
10 * See the License for the specific language governing permissions
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
11 * and limitations under the License.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
12 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
13 * When distributing Covered Code, include this CDDL HEADER in each
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
15 * If applicable, add the following below this CDDL HEADER, with the
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
16 * fields enclosed by brackets "[]" replaced with your own identifying
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
17 * information: Portions Copyright [yyyy] [name of copyright owner]
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
18 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
19 * CDDL HEADER END
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
20 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
21 /*
1488
196daa2cf3db PSARC/2006/034 fsstat
rsb
parents: 1025
diff changeset
22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
23 * Use is subject to license terms.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
24 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
25
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
26 #pragma ident "%Z%%M% %I% %E% SMI"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
27
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
28 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
29 * VFS operations for High Sierra filesystem
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
30 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
31
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
32 #include <sys/types.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
33 #include <sys/isa_defs.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
34 #include <sys/t_lock.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
35 #include <sys/param.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
36 #include <sys/systm.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
37 #include <sys/sysmacros.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
38 #include <sys/kmem.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
39 #include <sys/signal.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
40 #include <sys/user.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
41 #include <sys/proc.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
42 #include <sys/disp.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
43 #include <sys/buf.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
44 #include <sys/pathname.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
45 #include <sys/vfs.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
46 #include <sys/vnode.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
47 #include <sys/file.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
48 #include <sys/uio.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
49 #include <sys/conf.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
50 #include <sys/policy.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
51
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
52 #include <vm/page.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
53
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
54 #include <sys/fs/snode.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
55 #include <sys/fs/hsfs_spec.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
56 #include <sys/fs/hsfs_isospec.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
57 #include <sys/fs/hsfs_node.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
58 #include <sys/fs/hsfs_impl.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
59 #include <sys/fs/hsfs_susp.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
60 #include <sys/fs/hsfs_rrip.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
61
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
62 #include <sys/statvfs.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
63 #include <sys/mount.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
64 #include <sys/mntent.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
65 #include <sys/swap.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
66 #include <sys/errno.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
67 #include <sys/debug.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
68 #include "fs/fs_subr.h"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
69 #include <sys/cmn_err.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
70 #include <sys/bootconf.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
71
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
72 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
73 * These are needed for the CDROMREADOFFSET Code
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
74 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
75 #include <sys/cdio.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
76 #include <sys/sunddi.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
77
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
78 #define HSFS_CLKSET
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
79
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
80 #include <sys/modctl.h>
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
81
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
82 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
83 * Options for mount.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
84 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
85 #define HOPT_GLOBAL MNTOPT_GLOBAL
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
86 #define HOPT_NOGLOBAL MNTOPT_NOGLOBAL
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
87 #define HOPT_MAPLCASE "maplcase"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
88 #define HOPT_NOMAPLCASE "nomaplcase"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
89 #define HOPT_NOTRAILDOT "notraildot"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
90 #define HOPT_TRAILDOT "traildot"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
91 #define HOPT_NRR "nrr"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
92 #define HOPT_RR "rr"
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
93 #define HOPT_RO MNTOPT_RO
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
94
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
95 static char *global_cancel[] = { HOPT_NOGLOBAL, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
96 static char *noglobal_cancel[] = { HOPT_GLOBAL, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
97 static char *mapl_cancel[] = { HOPT_NOMAPLCASE, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
98 static char *nomapl_cancel[] = { HOPT_MAPLCASE, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
99 static char *ro_cancel[] = { MNTOPT_RW, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
100 static char *rr_cancel[] = { HOPT_NRR, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
101 static char *nrr_cancel[] = { HOPT_RR, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
102 static char *trail_cancel[] = { HOPT_NOTRAILDOT, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
103 static char *notrail_cancel[] = { HOPT_TRAILDOT, NULL };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
104
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
105 static mntopt_t hsfs_options[] = {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
106 { HOPT_GLOBAL, global_cancel, NULL, 0, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
107 { HOPT_NOGLOBAL, noglobal_cancel, NULL, MO_DEFAULT, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
108 { HOPT_MAPLCASE, mapl_cancel, NULL, MO_DEFAULT, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
109 { HOPT_NOMAPLCASE, nomapl_cancel, NULL, 0, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
110 { HOPT_RO, ro_cancel, NULL, MO_DEFAULT, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
111 { HOPT_RR, rr_cancel, NULL, MO_DEFAULT, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
112 { HOPT_NRR, nrr_cancel, NULL, 0, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
113 { HOPT_TRAILDOT, trail_cancel, NULL, MO_DEFAULT, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
114 { HOPT_NOTRAILDOT, notrail_cancel, NULL, 0, NULL },
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
115 };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
116
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
117 static mntopts_t hsfs_proto_opttbl = {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
118 sizeof (hsfs_options) / sizeof (mntopt_t),
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
119 hsfs_options
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
120 };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
121
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
122 static int hsfsinit(int, char *);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
123
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
124 static vfsdef_t vfw = {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
125 VFSDEF_VERSION,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
126 "hsfs",
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
127 hsfsinit,
1488
196daa2cf3db PSARC/2006/034 fsstat
rsb
parents: 1025
diff changeset
128 VSW_HASPROTO|VSW_STATS, /* We don't suppport remounting */
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
129 &hsfs_proto_opttbl
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
130 };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
131
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
132 static struct modlfs modlfs = {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
133 &mod_fsops, "filesystem for HSFS", &vfw
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
134 };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
135
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
136 static struct modlinkage modlinkage = {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
137 MODREV_1, (void *)&modlfs, NULL
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
138 };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
139
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
140 char _depends_on[] = "fs/specfs";
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
141
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
142 int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
143 _init()
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
144 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
145 return (mod_install(&modlinkage));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
146 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
147
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
148 int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
149 _fini()
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
150 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
151 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
152 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
153
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
154 int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
155 _info(struct modinfo *modinfop)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
156 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
157 return (mod_info(&modlinkage, modinfop));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
158 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
159
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
160 #define BDEVFLAG(dev) ((devopsp[getmajor(dev)])->devo_cb_ops->cb_flag)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
161
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
162 kmutex_t hs_mounttab_lock;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
163 struct hsfs *hs_mounttab = NULL;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
164
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
165 /* default mode, uid, gid */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
166 mode_t hsfs_default_mode = 0555;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
167 uid_t hsfs_default_uid = 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
168 gid_t hsfs_default_gid = 3;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
169
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
170 static int hsfs_mount(struct vfs *vfsp, struct vnode *mvp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
171 struct mounta *uap, struct cred *cr);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
172 static int hsfs_unmount(struct vfs *vfsp, int, struct cred *cr);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
173 static int hsfs_root(struct vfs *vfsp, struct vnode **vpp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
174 static int hsfs_statvfs(struct vfs *vfsp, struct statvfs64 *sbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
175 static int hsfs_vget(struct vfs *vfsp, struct vnode **vpp, struct fid *fidp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
176 static int hsfs_mountroot(struct vfs *, enum whymountroot);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
177
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
178 static int hs_mountfs(struct vfs *vfsp, dev_t dev, char *path,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
179 mode_t mode, int flags, struct cred *cr, int isroot);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
180 static int hs_findhsvol(struct hsfs *fsp, struct vnode *vp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
181 struct hs_volume *hvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
182 static int hs_parsehsvol(struct hsfs *fsp, uchar_t *volp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
183 struct hs_volume *hvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
184 static int hs_findisovol(struct hsfs *fsp, struct vnode *vp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
185 struct hs_volume *hvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
186 static int hs_parseisovol(struct hsfs *fsp, uchar_t *volp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
187 struct hs_volume *hvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
188 static void hs_copylabel(struct hs_volume *, unsigned char *);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
189 static int hs_getmdev(struct vfs *, char *fspec, int flags, dev_t *pdev,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
190 mode_t *mode, cred_t *cr);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
191 static int hs_findvoldesc(dev_t rdev, int desc_sec);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
192
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
193 static int hsfsfstype;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
194
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
195 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
196 hsfsinit(int fstype, char *name)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
197 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
198 static const fs_operation_def_t hsfs_vfsops_template[] = {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
199 VFSNAME_MOUNT, hsfs_mount,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
200 VFSNAME_UNMOUNT, hsfs_unmount,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
201 VFSNAME_ROOT, hsfs_root,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
202 VFSNAME_STATVFS, hsfs_statvfs,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
203 VFSNAME_VGET, hsfs_vget,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
204 VFSNAME_MOUNTROOT, hsfs_mountroot,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
205 NULL, NULL
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
206 };
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
207 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
208
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
209 error = vfs_setfsops(fstype, hsfs_vfsops_template, NULL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
210 if (error != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
211 cmn_err(CE_WARN, "hsfsinit: bad vfs ops template");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
212 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
213 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
214
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
215 error = vn_make_ops(name, hsfs_vnodeops_template, &hsfs_vnodeops);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
216 if (error != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
217 (void) vfs_freevfsops_by_type(fstype);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
218 cmn_err(CE_WARN, "hsfsinit: bad vnode ops template");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
219 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
220 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
221
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
222 hsfsfstype = fstype;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
223 mutex_init(&hs_mounttab_lock, NULL, MUTEX_DEFAULT, NULL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
224 hs_init_hsnode_cache();
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
225 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
226 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
227
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
228 /*ARGSUSED*/
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
229 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
230 hsfs_mount(struct vfs *vfsp, struct vnode *mvp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
231 struct mounta *uap, struct cred *cr)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
232 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
233 int vnode_busy;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
234 dev_t dev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
235 struct pathname dpn;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
236 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
237 mode_t mode;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
238 int flags; /* this will hold the mount specific data */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
239
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
240 if ((error = secpolicy_fs_mount(cr, mvp, vfsp)) != 0)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
241 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
242
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
243 if (mvp->v_type != VDIR)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
244 return (ENOTDIR);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
245
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
246 /* mount option must be read only, else mount will be rejected */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
247 if (!(uap->flags & MS_RDONLY))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
248 return (EROFS);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
249
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
250 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
251 * We already told the framework that we don't support remounting.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
252 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
253 ASSERT(!(uap->flags & MS_REMOUNT));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
254
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
255 mutex_enter(&mvp->v_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
256 vnode_busy = (mvp->v_count != 1) || (mvp->v_flag & VROOT);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
257 mutex_exit(&mvp->v_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
258
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
259 if ((uap->flags & MS_OVERLAY) == 0 && vnode_busy) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
260 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
261 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
262
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
263 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
264 * Check for the options that actually affect things
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
265 * at our level.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
266 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
267 flags = 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
268 if (vfs_optionisset(vfsp, HOPT_NOMAPLCASE, NULL))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
269 flags |= HSFSMNT_NOMAPLCASE;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
270 if (vfs_optionisset(vfsp, HOPT_NOTRAILDOT, NULL))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
271 flags |= HSFSMNT_NOTRAILDOT;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
272 if (vfs_optionisset(vfsp, HOPT_NRR, NULL))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
273 flags |= HSFSMNT_NORRIP;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
274
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
275 error = pn_get(uap->dir, (uap->flags & MS_SYSSPACE) ?
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
276 UIO_SYSSPACE : UIO_USERSPACE, &dpn);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
277 if (error)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
278 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
279
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
280 if ((error = hs_getmdev(vfsp, uap->spec, uap->flags, &dev,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
281 &mode, cr)) != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
282 pn_free(&dpn);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
283 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
284 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
285
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
286 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
287 * If the device is a tape, return error
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
288 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
289 if ((BDEVFLAG(dev) & D_TAPE) == D_TAPE) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
290 pn_free(&dpn);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
291 return (ENOTBLK);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
292 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
293
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
294 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
295 * Mount the filesystem.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
296 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
297 error = hs_mountfs(vfsp, dev, dpn.pn_path, mode, flags, cr, 0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
298 pn_free(&dpn);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
299 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
300 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
301
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
302 /*ARGSUSED*/
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
303 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
304 hsfs_unmount(
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
305 struct vfs *vfsp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
306 int flag,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
307 struct cred *cr)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
308 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
309 struct hsfs **tspp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
310 struct hsfs *fsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
311
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
312 if (secpolicy_fs_unmount(cr, vfsp) != 0)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
313 return (EPERM);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
314
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
315 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
316 * forced unmount is not supported by this file system
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
317 * and thus, ENOTSUP is being returned.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
318 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
319 if (flag & MS_FORCE)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
320 return (ENOTSUP);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
321
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
322 fsp = VFS_TO_HSFS(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
323
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
324 if (fsp->hsfs_rootvp->v_count != 1)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
325 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
326
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
327 /* destroy all old pages and hsnodes for this vfs */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
328 if (hs_synchash(vfsp))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
329 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
330
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
331 mutex_enter(&hs_mounttab_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
332 for (tspp = &hs_mounttab; *tspp != NULL; tspp = &(*tspp)->hsfs_next) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
333 if (*tspp == fsp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
334 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
335 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
336 if (*tspp == NULL) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
337 mutex_exit(&hs_mounttab_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
338 panic("hsfs_unmount: vfs not mounted?");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
339 /*NOTREACHED*/
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
340 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
341
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
342 *tspp = fsp->hsfs_next;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
343
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
344 mutex_exit(&hs_mounttab_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
345
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
346 (void) VOP_CLOSE(fsp->hsfs_devvp, FREAD, 1, (offset_t)0, cr);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
347 VN_RELE(fsp->hsfs_devvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
348 /* free path table space */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
349 if (fsp->hsfs_ptbl != NULL)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
350 kmem_free(fsp->hsfs_ptbl,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
351 (size_t)fsp->hsfs_vol.ptbl_len);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
352 /* free path table index table */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
353 if (fsp->hsfs_ptbl_idx != NULL)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
354 kmem_free(fsp->hsfs_ptbl_idx, (size_t)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
355 (fsp->hsfs_ptbl_idx_size * sizeof (struct ptable_idx)));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
356
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
357 /* free "mounted on" pathame */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
358 if (fsp->hsfs_fsmnt != NULL)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
359 kmem_free(fsp->hsfs_fsmnt, strlen(fsp->hsfs_fsmnt) + 1);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
360
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
361 mutex_destroy(&fsp->hsfs_free_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
362 rw_destroy(&fsp->hsfs_hash_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
363
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
364 kmem_free(fsp, sizeof (*fsp));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
365 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
366 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
367
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
368 /*ARGSUSED*/
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
369 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
370 hsfs_root(struct vfs *vfsp, struct vnode **vpp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
371 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
372 *vpp = (VFS_TO_HSFS(vfsp))->hsfs_rootvp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
373 VN_HOLD(*vpp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
374 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
375 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
376
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
377 /*ARGSUSED*/
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
378 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
379 hsfs_statvfs(struct vfs *vfsp, struct statvfs64 *sbp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
380 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
381 struct hsfs *fsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
382 dev32_t d32;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
383
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
384 fsp = VFS_TO_HSFS(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
385 if (fsp->hsfs_magic != HSFS_MAGIC)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
386 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
387 bzero(sbp, sizeof (*sbp));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
388 sbp->f_bsize = vfsp->vfs_bsize;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
389 sbp->f_frsize = sbp->f_bsize; /* no fragment, same as block size */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
390 sbp->f_blocks = (fsblkcnt64_t)fsp->hsfs_vol.vol_size;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
391
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
392 sbp->f_bfree = (fsblkcnt64_t)0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
393 sbp->f_bavail = (fsblkcnt64_t)0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
394 sbp->f_files = (fsfilcnt64_t)-1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
395 sbp->f_ffree = (fsfilcnt64_t)0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
396 sbp->f_favail = (fsfilcnt64_t)0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
397 (void) cmpldev(&d32, vfsp->vfs_dev);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
398 sbp->f_fsid = d32;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
399 (void) strcpy(sbp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
400 sbp->f_flag = vf_to_stf(vfsp->vfs_flag);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
401 sbp->f_namemax = fsp->hsfs_namemax;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
402 (void) strcpy(sbp->f_fstr, fsp->hsfs_vol.vol_id);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
403
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
404 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
405 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
406
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
407 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
408 * Previously nodeid was declared as uint32_t. This has been changed
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
409 * to conform better with the ISO9660 standard. The standard states that
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
410 * a LBN can be a 32 bit number, as the MAKE_NODEID macro shifts this
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
411 * LBN 11 places left (LBN_TO_BYTE) and then shifts the result 5 right
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
412 * (divide by 32) we are left with the potential of an overflow if
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
413 * confined to a 32 bit value.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
414 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
415
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
416 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
417 hsfs_vget(struct vfs *vfsp, struct vnode **vpp, struct fid *fidp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
418 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
419 struct hsfid *fid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
420 struct hsfs *fsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
421 ino64_t nodeid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
422 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
423
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
424 fsp = (struct hsfs *)VFS_TO_HSFS(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
425 fid = (struct hsfid *)fidp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
426
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
427 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
428 * Look for vnode on hashlist.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
429 * If found, it's now active and the refcnt was incremented.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
430 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
431
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
432 rw_enter(&fsp->hsfs_hash_lock, RW_READER);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
433
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
434 nodeid = (ino64_t)MAKE_NODEID(fid->hf_dir_lbn, fid->hf_dir_off, vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
435
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
436 if ((*vpp = hs_findhash(nodeid, vfsp)) == NULL) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
437 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
438 * Not in cache, so we need to remake it.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
439 * hs_remakenode() will read the directory entry
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
440 * and then check again to see if anyone else has
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
441 * put it in the cache.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
442 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
443 rw_exit(&fsp->hsfs_hash_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
444 error = hs_remakenode(fid->hf_dir_lbn, (uint_t)fid->hf_dir_off,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
445 vfsp, vpp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
446 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
447 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
448 rw_exit(&fsp->hsfs_hash_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
449 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
450 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
451
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
452
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
453 #define CHECKSUM_SIZE (64 * 1024)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
454
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
455 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
456 * Compute a CD-ROM fsid by checksumming the first 64K of data on the CD
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
457 * We use the 'fsp' argument to determine the location of the root
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
458 * directory entry, and we start reading from there.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
459 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
460 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
461 compute_cdrom_id(struct hsfs *fsp, vnode_t *devvp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
462 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
463 uint_t secno;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
464 struct hs_volume *hsvp = &fsp->hsfs_vol;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
465 struct buf *bp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
466 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
467 int fsid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
468
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
469 secno = hsvp->root_dir.ext_lbn >> hsvp->lbn_secshift;
494
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
470 bp = bread(devvp->v_rdev, secno * 4, CHECKSUM_SIZE);
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
471 error = geterror(bp);
494
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
472
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
473 /*
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
474 * An error on read or a partial read means we asked
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
475 * for a nonexistant/corrupted piece of the device
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
476 * (including past-the-end of the media). Don't
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
477 * try to use the checksumming method then.
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
478 */
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
479 if (!error && bp->b_bcount == CHECKSUM_SIZE) {
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
480 int *ibuf = (int *)bp->b_un.b_addr;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
481 int i;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
482
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
483 fsid = 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
484
494
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
485 for (i = 0; i < CHECKSUM_SIZE / sizeof (int); i++)
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
486 fsid ^= ibuf[ i ];
494
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
487 } else {
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
488 /*
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
489 * Fallback - use creation date
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
490 */
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
491 fsid = hsvp->cre_date.tv_sec;
494
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
492 }
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
493
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
494 brelse(bp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
495
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
496 return (fsid);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
497 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
498
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
499
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
500 /*ARGSUSED*/
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
501 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
502 hs_mountfs(
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
503 struct vfs *vfsp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
504 dev_t dev,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
505 char *path,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
506 mode_t mode,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
507 int mount_flags,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
508 struct cred *cr,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
509 int isroot)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
510 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
511 struct vnode *devvp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
512 struct hsfs *tsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
513 struct hsfs *fsp = NULL;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
514 struct vattr vap;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
515 struct hsnode *hp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
516 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
517 struct timeval tv;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
518 int fsid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
519 int use_rrip = (mount_flags & HSFSMNT_NORRIP) == 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
520
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
521 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
522 * Open the device
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
523 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
524 devvp = makespecvp(dev, VBLK);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
525 ASSERT(devvp != 0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
526
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
527 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
528 * Open the target device (file) for read only.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
529 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
530 if (error = VOP_OPEN(&devvp, FREAD, cr)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
531 VN_RELE(devvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
532 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
533 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
534
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
535 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
536 * Refuse to go any further if this
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
537 * device is being used for swapping
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
538 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
539 if (IS_SWAPVP(common_specvp(devvp))) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
540 error = EBUSY;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
541 goto cleanup;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
542 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
543
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
544 vap.va_mask = AT_SIZE;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
545 if ((error = VOP_GETATTR(devvp, &vap, ATTR_COMM, cr)) != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
546 cmn_err(CE_NOTE, "Cannot get attributes of the CD-ROM driver");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
547 goto cleanup;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
548 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
549
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
550 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
551 * Make sure we have a nonzero size partition.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
552 * The current version of the SD driver will *not* fail the open
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
553 * of such a partition so we have to check for it here.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
554 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
555 if (vap.va_size == 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
556 error = ENXIO;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
557 goto cleanup;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
558 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
559
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
560 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
561 * Init a new hsfs structure.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
562 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
563 fsp = kmem_zalloc(sizeof (*fsp), KM_SLEEP);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
564
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
565 /* hardwire perms, uid, gid */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
566 fsp->hsfs_vol.vol_uid = hsfs_default_uid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
567 fsp->hsfs_vol.vol_gid = hsfs_default_gid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
568 fsp->hsfs_vol.vol_prot = hsfs_default_mode;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
569
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
570 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
571 * Look for a Standard File Structure Volume Descriptor,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
572 * of which there must be at least one.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
573 * If found, check for volume size consistency.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
574 */
1025
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
575 error = hs_findisovol(fsp, devvp, &fsp->hsfs_vol);
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
576 if (error == EINVAL) /* no iso 9660 - try high sierra ... */
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
577 error = hs_findhsvol(fsp, devvp, &fsp->hsfs_vol);
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
578
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
579 if (error)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
580 goto cleanup;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
581
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
582 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
583 * Generate a file system ID from the CD-ROM,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
584 * and check it for uniqueness.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
585 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
586 * What we are aiming for is some chance of integrity
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
587 * across disk change. That is, if a client has an fhandle,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
588 * it will be valid as long as the same disk is mounted.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
589 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
590 fsid = compute_cdrom_id(fsp, devvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
591
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
592 mutex_enter(&hs_mounttab_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
593
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
594 if (fsid == 0 || fsid == -1) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
595 uniqtime(&tv);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
596 fsid = tv.tv_sec;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
597 } else /* make sure that the fsid is unique */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
598 for (tsp = hs_mounttab; tsp != NULL; tsp = tsp->hsfs_next) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
599 if (fsid == tsp->hsfs_vfs->vfs_fsid.val[0]) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
600 uniqtime(&tv);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
601 fsid = tv.tv_sec;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
602 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
603 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
604 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
605
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
606 fsp->hsfs_next = hs_mounttab;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
607 hs_mounttab = fsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
608
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
609 fsp->hsfs_devvp = devvp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
610 fsp->hsfs_vfs = vfsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
611 fsp->hsfs_fsmnt = kmem_alloc(strlen(path) + 1, KM_SLEEP);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
612 (void) strcpy(fsp->hsfs_fsmnt, path);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
613
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
614 mutex_init(&fsp->hsfs_free_lock, NULL, MUTEX_DEFAULT, NULL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
615 rw_init(&fsp->hsfs_hash_lock, NULL, RW_DEFAULT, NULL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
616
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
617 vfsp->vfs_data = (caddr_t)fsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
618 vfsp->vfs_dev = dev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
619 vfsp->vfs_fstype = hsfsfstype;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
620 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; /* %% */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
621 vfsp->vfs_fsid.val[0] = fsid;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
622 vfsp->vfs_fsid.val[1] = hsfsfstype;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
623
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
624 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
625 * If the root directory does not appear to be
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
626 * valid, use what it points to as "." instead.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
627 * Some Defense Mapping Agency disks are non-conformant
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
628 * in this way.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
629 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
630 if (!hsfs_valid_dir(&fsp->hsfs_vol.root_dir)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
631 hs_log_bogus_disk_warning(fsp, HSFS_ERR_BAD_ROOT_DIR, 0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
632 if (hs_remakenode(fsp->hsfs_vol.root_dir.ext_lbn,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
633 (uint_t)0, vfsp, &fsp->hsfs_rootvp)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
634 error = EINVAL;
1025
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
635 hs_mounttab = hs_mounttab->hsfs_next;
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
636 mutex_destroy(&fsp->hsfs_free_lock);
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
637 rw_destroy(&fsp->hsfs_hash_lock);
1aef26bcfa0e 6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents: 494
diff changeset
638 kmem_free(fsp->hsfs_fsmnt, strlen(path) + 1);
494
e082e44c7fce 6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents: 0
diff changeset
639 mutex_exit(&hs_mounttab_lock);
0
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
640 goto cleanup;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
641 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
642 } else {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
643 fsp->hsfs_rootvp = hs_makenode(&fsp->hsfs_vol.root_dir,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
644 fsp->hsfs_vol.root_dir.ext_lbn, 0, vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
645 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
646
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
647 /* mark vnode as VROOT */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
648 fsp->hsfs_rootvp->v_flag |= VROOT;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
649
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
650 /* Here we take care of some special case stuff for mountroot */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
651 if (isroot) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
652 fsp->hsfs_rootvp->v_rdev = devvp->v_rdev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
653 rootvp = fsp->hsfs_rootvp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
654 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
655
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
656 /* XXX - ignore the path table for now */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
657 fsp->hsfs_ptbl = NULL;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
658 hp = VTOH(fsp->hsfs_rootvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
659 hp->hs_ptbl_idx = NULL;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
660
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
661 if (use_rrip)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
662 hs_check_root_dirent(fsp->hsfs_rootvp, &(hp->hs_dirent));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
663
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
664 fsp->hsfs_namemax = IS_RRIP_IMPLEMENTED(fsp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
665 ? RRIP_FILE_NAMELEN
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
666 : ISO_FILE_NAMELEN;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
667 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
668 * if RRIP, don't copy NOMAPLCASE or NOTRAILDOT to hsfs_flags
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
669 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
670 if (IS_RRIP_IMPLEMENTED(fsp))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
671 mount_flags &= ~(HSFSMNT_NOMAPLCASE | HSFSMNT_NOTRAILDOT);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
672
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
673 fsp->hsfs_flags = mount_flags;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
674
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
675 /* set the magic word */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
676 fsp->hsfs_magic = HSFS_MAGIC;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
677 mutex_exit(&hs_mounttab_lock);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
678
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
679 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
680
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
681 cleanup:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
682 (void) VOP_CLOSE(devvp, FREAD, 1, (offset_t)0, cr);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
683 VN_RELE(devvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
684 if (fsp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
685 kmem_free(fsp, sizeof (*fsp));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
686 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
687 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
688
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
689 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
690 * hs_findhsvol()
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
691 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
692 * Locate the Standard File Structure Volume Descriptor and
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
693 * parse it into an hs_volume structure.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
694 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
695 * XXX - May someday want to look for Coded Character Set FSVD, too.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
696 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
697 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
698 hs_findhsvol(struct hsfs *fsp, struct vnode *vp, struct hs_volume *hvp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
699 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
700 struct buf *secbp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
701 int i;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
702 uchar_t *volp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
703 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
704 uint_t secno;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
705
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
706 secno = hs_findvoldesc(vp->v_rdev, HS_VOLDESC_SEC);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
707 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
708 error = geterror(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
709
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
710 if (error != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
711 cmn_err(CE_NOTE, "hs_findhsvol: bread: error=(%d)", error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
712 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
713 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
714 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
715
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
716 volp = (uchar_t *)secbp->b_un.b_addr;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
717
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
718 while (HSV_DESC_TYPE(volp) != VD_EOV) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
719 for (i = 0; i < HSV_ID_STRLEN; i++)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
720 if (HSV_STD_ID(volp)[i] != HSV_ID_STRING[i])
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
721 goto cantfind;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
722 if (HSV_STD_VER(volp) != HSV_ID_VER)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
723 goto cantfind;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
724 switch (HSV_DESC_TYPE(volp)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
725 case VD_SFS:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
726 /* Standard File Structure */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
727 fsp->hsfs_vol_type = HS_VOL_TYPE_HS;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
728 error = hs_parsehsvol(fsp, volp, hvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
729 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
730 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
731
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
732 case VD_CCFS:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
733 /* Coded Character File Structure */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
734 case VD_BOOT:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
735 case VD_UNSPEC:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
736 case VD_EOV:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
737 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
738 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
739 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
740 ++secno;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
741 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
742
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
743 error = geterror(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
744
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
745 if (error != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
746 cmn_err(CE_NOTE, "hs_findhsvol: bread: error=(%d)",
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
747 error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
748 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
749 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
750 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
751
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
752 volp = (uchar_t *)secbp->b_un.b_addr;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
753 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
754 cantfind:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
755 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
756 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
757 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
758
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
759 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
760 * hs_parsehsvol
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
761 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
762 * Parse the Standard File Structure Volume Descriptor into
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
763 * an hs_volume structure. We can't just bcopy it into the
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
764 * structure because of byte-ordering problems.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
765 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
766 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
767 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
768 hs_parsehsvol(struct hsfs *fsp, uchar_t *volp, struct hs_volume *hvp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
769 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
770 hvp->vol_size = HSV_VOL_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
771 hvp->lbn_size = HSV_BLK_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
772 if (hvp->lbn_size == 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
773 cmn_err(CE_NOTE, "hs_parsehsvol: logical block size in the "
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
774 "SFSVD is zero");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
775 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
776 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
777 hvp->lbn_shift = ffs((long)hvp->lbn_size) - 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
778 hvp->lbn_secshift = ffs((long)howmany(HS_SECTOR_SIZE,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
779 (int)hvp->lbn_size)) - 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
780 hvp->lbn_maxoffset = hvp->lbn_size - 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
781 hs_parse_longdate(HSV_cre_date(volp), &hvp->cre_date);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
782 hs_parse_longdate(HSV_mod_date(volp), &hvp->mod_date);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
783 hvp->file_struct_ver = HSV_FILE_STRUCT_VER(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
784 hvp->ptbl_len = HSV_PTBL_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
785 hvp->vol_set_size = (ushort_t)HSV_SET_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
786 hvp->vol_set_seq = (ushort_t)HSV_SET_SEQ(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
787 #if defined(_LITTLE_ENDIAN)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
788 hvp->ptbl_lbn = HSV_PTBL_MAN_LS(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
789 #else
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
790 hvp->ptbl_lbn = HSV_PTBL_MAN_MS(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
791 #endif
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
792 hs_copylabel(hvp, HSV_VOL_ID(volp));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
793
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
794 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
795 * Make sure that lbn_size is a power of two and otherwise valid.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
796 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
797 if (hvp->lbn_size & ~(1 << hvp->lbn_shift)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
798 cmn_err(CE_NOTE,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
799 "hsfs: %d-byte logical block size not supported",
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
800 hvp->lbn_size);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
801 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
802 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
803 return (hs_parsedir(fsp, HSV_ROOT_DIR(volp), &hvp->root_dir,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
804 (char *)NULL, (int *)NULL));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
805 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
806
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
807 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
808 * hs_findisovol()
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
809 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
810 * Locate the Primary Volume Descriptor
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
811 * parse it into an hs_volume structure.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
812 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
813 * XXX - Supplementary, Partition not yet done
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
814 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
815 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
816 hs_findisovol(struct hsfs *fsp, struct vnode *vp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
817 struct hs_volume *hvp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
818 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
819 struct buf *secbp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
820 int i;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
821 uchar_t *volp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
822 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
823 uint_t secno;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
824 int foundpvd = 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
825
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
826 secno = hs_findvoldesc(vp->v_rdev, ISO_VOLDESC_SEC);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
827 secbp = bread(vp->v_rdev, secno * 4, ISO_SECTOR_SIZE);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
828 error = geterror(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
829
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
830 if (error != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
831 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
832 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
833 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
834 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
835
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
836 volp = (uchar_t *)secbp->b_un.b_addr;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
837
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
838 while ((enum iso_voldesc_type) ISO_DESC_TYPE(volp) != ISO_VD_EOV) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
839 for (i = 0; i < ISO_ID_STRLEN; i++)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
840 if (ISO_STD_ID(volp)[i] != ISO_ID_STRING[i])
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
841 goto cantfind;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
842 if (ISO_STD_VER(volp) != ISO_ID_VER)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
843 goto cantfind;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
844 switch (ISO_DESC_TYPE(volp)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
845 case ISO_VD_PVD:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
846 /* Standard File Structure */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
847 if (foundpvd != 1) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
848 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
849 if (error = hs_parseisovol(fsp, volp, hvp)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
850 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
851 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
852 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
853 foundpvd = 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
854 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
855 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
856 case ISO_VD_SVD:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
857 /* Supplementary Volume Descriptor */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
858 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
859 case ISO_VD_BOOT:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
860 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
861 case ISO_VD_VPD:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
862 /* currently cannot handle partition */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
863 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
864 case VD_EOV:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
865 break;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
866 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
867 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
868 ++secno;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
869 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
870 error = geterror(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
871
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
872 if (error != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
873 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)",
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
874 error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
875 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
876 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
877 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
878
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
879 volp = (uchar_t *)secbp->b_un.b_addr;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
880 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
881 if (foundpvd) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
882 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
883 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
884 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
885 cantfind:
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
886 brelse(secbp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
887 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
888 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
889 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
890 * hs_parseisovol
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
891 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
892 * Parse the Primary Volume Descriptor into an hs_volume structure.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
893 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
894 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
895 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
896 hs_parseisovol(struct hsfs *fsp, uchar_t *volp, struct hs_volume *hvp)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
897 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
898 hvp->vol_size = ISO_VOL_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
899 hvp->lbn_size = ISO_BLK_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
900 if (hvp->lbn_size == 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
901 cmn_err(CE_NOTE, "hs_parseisovol: logical block size in the "
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
902 "PVD is zero");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
903 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
904 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
905 hvp->lbn_shift = ffs((long)hvp->lbn_size) - 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
906 hvp->lbn_secshift = ffs((long)howmany(ISO_SECTOR_SIZE,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
907 (int)hvp->lbn_size)) - 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
908 hvp->lbn_maxoffset = hvp->lbn_size - 1;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
909 hs_parse_longdate(ISO_cre_date(volp), &hvp->cre_date);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
910 hs_parse_longdate(ISO_mod_date(volp), &hvp->mod_date);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
911 hvp->file_struct_ver = ISO_FILE_STRUCT_VER(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
912 hvp->ptbl_len = ISO_PTBL_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
913 hvp->vol_set_size = (ushort_t)ISO_SET_SIZE(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
914 hvp->vol_set_seq = (ushort_t)ISO_SET_SEQ(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
915 #if defined(_LITTLE_ENDIAN)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
916 hvp->ptbl_lbn = ISO_PTBL_MAN_LS(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
917 #else
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
918 hvp->ptbl_lbn = ISO_PTBL_MAN_MS(volp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
919 #endif
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
920 hs_copylabel(hvp, ISO_VOL_ID(volp));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
921
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
922 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
923 * Make sure that lbn_size is a power of two and otherwise valid.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
924 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
925 if (hvp->lbn_size & ~(1 << hvp->lbn_shift)) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
926 cmn_err(CE_NOTE,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
927 "hsfs: %d-byte logical block size not supported",
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
928 hvp->lbn_size);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
929 return (EINVAL);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
930 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
931 return (hs_parsedir(fsp, ISO_ROOT_DIR(volp), &hvp->root_dir,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
932 (char *)NULL, (int *)NULL));
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
933 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
934
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
935 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
936 * Common code for mount and umount.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
937 * Check that the user's argument is a reasonable
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
938 * thing on which to mount, and return the device number if so.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
939 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
940 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
941 hs_getmdev(struct vfs *vfsp, char *fspec, int flags, dev_t *pdev, mode_t *mode,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
942 cred_t *cr)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
943 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
944 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
945 struct vnode *vp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
946 struct vattr vap;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
947 dev_t dev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
948
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
949 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
950 * Get the device to be mounted
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
951 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
952 error = lookupname(fspec, (flags & MS_SYSSPACE) ?
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
953 UIO_SYSSPACE : UIO_USERSPACE, FOLLOW, NULLVPP, &vp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
954 if (error) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
955 if (error == ENOENT) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
956 return (ENODEV); /* needs translation */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
957 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
958 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
959 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
960 if (vp->v_type != VBLK) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
961 VN_RELE(vp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
962 return (ENOTBLK);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
963 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
964 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
965 * Can we read from the device?
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
966 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
967 if ((error = VOP_ACCESS(vp, VREAD, 0, cr)) != 0 ||
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
968 (error = secpolicy_spec_open(cr, vp, FREAD)) != 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
969 VN_RELE(vp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
970 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
971 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
972
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
973 vap.va_mask = AT_MODE; /* get protection mode */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
974 (void) VOP_GETATTR(vp, &vap, 0, CRED());
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
975 *mode = vap.va_mode;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
976
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
977 dev = *pdev = vp->v_rdev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
978 VN_RELE(vp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
979
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
980 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
981 * Ensure that this device isn't already mounted,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
982 * unless this is a REMOUNT request or we are told to suppress
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
983 * mount checks.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
984 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
985 if ((flags & MS_NOCHECK) == 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
986 if (vfs_devmounting(dev, vfsp))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
987 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
988 if (vfs_devismounted(dev) && !(flags & MS_REMOUNT))
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
989 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
990 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
991
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
992 if (getmajor(*pdev) >= devcnt)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
993 return (ENXIO);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
994 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
995 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
996
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
997 static void
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
998 hs_copylabel(struct hs_volume *hvp, unsigned char *label)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
999 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1000 /* cdrom volid is at most 32 bytes */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1001 bcopy(label, hvp->vol_id, 32);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1002 hvp->vol_id[31] = NULL;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1003 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1004
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1005 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1006 * Mount root file system.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1007 * "why" is ROOT_INIT on initial call, ROOT_REMOUNT if called to
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1008 * remount the root file system, and ROOT_UNMOUNT if called to
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1009 * unmount the root (e.g., as part of a system shutdown).
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1010 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1011 * XXX - this may be partially machine-dependent; it, along with the VFS_SWAPVP
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1012 * operation, goes along with auto-configuration. A mechanism should be
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1013 * provided by which machine-INdependent code in the kernel can say "get me the
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1014 * right root file system" and "get me the right initial swap area", and have
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1015 * that done in what may well be a machine-dependent fashion.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1016 * Unfortunately, it is also file-system-type dependent (NFS gets it via
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1017 * bootparams calls, UFS gets it from various and sundry machine-dependent
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1018 * mechanisms, as SPECFS does for swap).
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1019 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1020 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1021 hsfs_mountroot(struct vfs *vfsp, enum whymountroot why)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1022 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1023 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1024 struct hsfs *fsp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1025 struct hs_volume *fvolp;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1026 static int hsfsrootdone = 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1027 dev_t rootdev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1028 mode_t mode = 0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1029
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1030 if (why == ROOT_INIT) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1031 if (hsfsrootdone++)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1032 return (EBUSY);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1033 rootdev = getrootdev();
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1034 if (rootdev == (dev_t)NODEV)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1035 return (ENODEV);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1036 vfsp->vfs_dev = rootdev;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1037 vfsp->vfs_flag |= VFS_RDONLY;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1038 } else if (why == ROOT_REMOUNT) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1039 cmn_err(CE_NOTE, "hsfs_mountroot: ROOT_REMOUNT");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1040 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1041 } else if (why == ROOT_UNMOUNT) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1042 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1043 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1044 error = vfs_lock(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1045 if (error) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1046 cmn_err(CE_NOTE, "hsfs_mountroot: couldn't get vfs_lock");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1047 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1048 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1049
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1050 error = hs_mountfs(vfsp, rootdev, "/", mode, 1, CRED(), 1);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1051 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1052 * XXX - assumes root device is not indirect, because we don't set
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1053 * rootvp. Is rootvp used for anything? If so, make another arg
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1054 * to mountfs.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1055 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1056 if (error) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1057 vfs_unlock(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1058 if (rootvp) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1059 VN_RELE(rootvp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1060 rootvp = (struct vnode *)0;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1061 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1062 return (error);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1063 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1064 if (why == ROOT_INIT)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1065 vfs_add((struct vnode *)0, vfsp,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1066 (vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1067 vfs_unlock(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1068 fsp = VFS_TO_HSFS(vfsp);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1069 fvolp = &fsp->hsfs_vol;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1070 #ifdef HSFS_CLKSET
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1071 if (fvolp->cre_date.tv_sec == 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1072 cmn_err(CE_NOTE, "hsfs_mountroot: cre_date.tv_sec == 0");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1073 if (fvolp->mod_date.tv_sec == 0) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1074 cmn_err(CE_NOTE, "hsfs_mountroot: mod_date.tv_sec == 0");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1075 cmn_err(CE_NOTE, "hsfs_mountroot: clkset(-1L)");
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1076 clkset(-1L);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1077 } else
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1078 clkset(fvolp->mod_date.tv_sec);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1079 } else
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1080 clkset(fvolp->mod_date.tv_sec);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1081 #else /* HSFS_CLKSET */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1082 clkset(-1L);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1083 #endif /* HSFS_CLKSET */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1084 return (0);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1085 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1086
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1087 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1088 * hs_findvoldesc()
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1089 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1090 * Return the sector where the volume descriptor lives. This is
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1091 * a fixed value for "normal" cd-rom's, but can change for
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1092 * multisession cd's.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1093 *
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1094 * desc_sec is the same for high-sierra and iso 9660 formats, why
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1095 * there are two differnt #defines used in the code for this is
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1096 * beyond me. These are standards, cast in concrete, right?
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1097 * To be general, however, this function supports passing in different
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1098 * values.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1099 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1100 static int
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1101 hs_findvoldesc(dev_t rdev, int desc_sec)
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1102 {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1103 int secno;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1104 int error;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1105 int rval; /* ignored */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1106
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1107 #ifdef CDROMREADOFFSET
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1108 /*
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1109 * Issue the Read Offset ioctl directly to the
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1110 * device. Ignore any errors and set starting
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1111 * secno to the default, otherwise add the
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1112 * VOLDESC sector number to the offset.
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1113 */
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1114 error = cdev_ioctl(rdev, CDROMREADOFFSET, (intptr_t)&secno,
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1115 FNATIVE|FKIOCTL|FREAD, CRED(), &rval);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1116 if (error) {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1117 secno = desc_sec;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1118 } else {
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1119 secno += desc_sec;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1120 }
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1121 #else
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1122 secno = desc_sec;
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1123 #endif
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1124
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1125 return (secno);
68f95e015346 OpenSolaris Launch
stevel@tonic-gate
parents:
diff changeset
1126 }