Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/hsfs/hsfs_vfsops.c @ 12633:9f2cda0ed938
PSARC 2010/144 lofi(7D) in non global zones
6354954 lofi support in non-global zones
6942891 prof_lookup_globaldev() leaks rootdir refs
6945005 lofiadm -a /dev/lofi/1: recursive mutex enter
6946486 lofi_ioctl() shouldn't allow disk ioctl()s on /dev/lofictl
| author | John Levon <john.levon@sun.com> |
|---|---|
| date | Wed, 16 Jun 2010 10:02:44 -0700 |
| parents | 5303cd53a81b |
| children | 6bec9720e054 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 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 | 7 * |
| 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
| 9 * or http://www.opensolaris.org/os/licensing. | |
| 10 * See the License for the specific language governing permissions | |
| 11 * and limitations under the License. | |
| 12 * | |
| 13 * When distributing Covered Code, include this CDDL HEADER in each | |
| 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
| 15 * If applicable, add the following below this CDDL HEADER, with the | |
| 16 * fields enclosed by brackets "[]" replaced with your own identifying | |
| 17 * information: Portions Copyright [yyyy] [name of copyright owner] | |
| 18 * | |
| 19 * CDDL HEADER END | |
| 20 */ | |
| 21 /* | |
|
12633
9f2cda0ed938
PSARC 2010/144 lofi(7D) in non global zones
John Levon <john.levon@sun.com>
parents:
6894
diff
changeset
|
22 * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 23 */ |
| 24 | |
| 25 /* | |
| 26 * VFS operations for High Sierra filesystem | |
| 27 */ | |
| 28 | |
| 29 #include <sys/types.h> | |
| 30 #include <sys/isa_defs.h> | |
| 31 #include <sys/t_lock.h> | |
| 32 #include <sys/param.h> | |
| 33 #include <sys/systm.h> | |
| 34 #include <sys/sysmacros.h> | |
| 35 #include <sys/kmem.h> | |
| 36 #include <sys/signal.h> | |
| 37 #include <sys/user.h> | |
| 38 #include <sys/proc.h> | |
| 39 #include <sys/disp.h> | |
| 40 #include <sys/buf.h> | |
| 41 #include <sys/pathname.h> | |
| 42 #include <sys/vfs.h> | |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
43 #include <sys/vfs_opreg.h> |
| 0 | 44 #include <sys/vnode.h> |
| 45 #include <sys/file.h> | |
| 46 #include <sys/uio.h> | |
| 47 #include <sys/conf.h> | |
| 48 #include <sys/policy.h> | |
| 49 | |
| 50 #include <vm/page.h> | |
| 51 | |
| 52 #include <sys/fs/snode.h> | |
| 53 #include <sys/fs/hsfs_spec.h> | |
| 54 #include <sys/fs/hsfs_isospec.h> | |
| 55 #include <sys/fs/hsfs_node.h> | |
| 56 #include <sys/fs/hsfs_impl.h> | |
| 57 #include <sys/fs/hsfs_susp.h> | |
| 58 #include <sys/fs/hsfs_rrip.h> | |
| 59 | |
| 60 #include <sys/statvfs.h> | |
| 61 #include <sys/mount.h> | |
| 62 #include <sys/mntent.h> | |
| 63 #include <sys/swap.h> | |
| 64 #include <sys/errno.h> | |
| 65 #include <sys/debug.h> | |
| 66 #include "fs/fs_subr.h" | |
| 67 #include <sys/cmn_err.h> | |
| 68 #include <sys/bootconf.h> | |
| 69 | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
70 #include <sys/sdt.h> |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
71 |
| 0 | 72 /* |
| 73 * These are needed for the CDROMREADOFFSET Code | |
| 74 */ | |
| 75 #include <sys/cdio.h> | |
| 76 #include <sys/sunddi.h> | |
| 77 | |
| 78 #define HSFS_CLKSET | |
| 79 | |
| 80 #include <sys/modctl.h> | |
| 81 | |
| 82 /* | |
| 83 * Options for mount. | |
| 84 */ | |
| 85 #define HOPT_GLOBAL MNTOPT_GLOBAL | |
| 86 #define HOPT_NOGLOBAL MNTOPT_NOGLOBAL | |
| 87 #define HOPT_MAPLCASE "maplcase" | |
| 88 #define HOPT_NOMAPLCASE "nomaplcase" | |
| 89 #define HOPT_NOTRAILDOT "notraildot" | |
| 90 #define HOPT_TRAILDOT "traildot" | |
| 91 #define HOPT_NRR "nrr" | |
| 92 #define HOPT_RR "rr" | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
93 #define HOPT_JOLIET "joliet" |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
94 #define HOPT_NOJOLIET "nojoliet" |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
95 #define HOPT_JOLIETLONG "jolietlong" |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
96 #define HOPT_VERS2 "vers2" |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
97 #define HOPT_NOVERS2 "novers2" |
| 0 | 98 #define HOPT_RO MNTOPT_RO |
| 99 | |
| 100 static char *global_cancel[] = { HOPT_NOGLOBAL, NULL }; | |
| 101 static char *noglobal_cancel[] = { HOPT_GLOBAL, NULL }; | |
| 102 static char *mapl_cancel[] = { HOPT_NOMAPLCASE, NULL }; | |
| 103 static char *nomapl_cancel[] = { HOPT_MAPLCASE, NULL }; | |
| 104 static char *ro_cancel[] = { MNTOPT_RW, NULL }; | |
| 105 static char *rr_cancel[] = { HOPT_NRR, NULL }; | |
| 106 static char *nrr_cancel[] = { HOPT_RR, NULL }; | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
107 static char *joliet_cancel[] = { HOPT_NOJOLIET, NULL }; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
108 static char *nojoliet_cancel[] = { HOPT_JOLIET, NULL }; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
109 static char *vers2_cancel[] = { HOPT_NOVERS2, NULL }; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
110 static char *novers2_cancel[] = { HOPT_VERS2, NULL }; |
| 0 | 111 static char *trail_cancel[] = { HOPT_NOTRAILDOT, NULL }; |
| 112 static char *notrail_cancel[] = { HOPT_TRAILDOT, NULL }; | |
| 113 | |
| 114 static mntopt_t hsfs_options[] = { | |
| 115 { HOPT_GLOBAL, global_cancel, NULL, 0, NULL }, | |
| 116 { HOPT_NOGLOBAL, noglobal_cancel, NULL, MO_DEFAULT, NULL }, | |
| 117 { HOPT_MAPLCASE, mapl_cancel, NULL, MO_DEFAULT, NULL }, | |
| 118 { HOPT_NOMAPLCASE, nomapl_cancel, NULL, 0, NULL }, | |
| 119 { HOPT_RO, ro_cancel, NULL, MO_DEFAULT, NULL }, | |
| 120 { HOPT_RR, rr_cancel, NULL, MO_DEFAULT, NULL }, | |
| 121 { HOPT_NRR, nrr_cancel, NULL, 0, NULL }, | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
122 { HOPT_JOLIET, joliet_cancel, NULL, 0, NULL }, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
123 { HOPT_NOJOLIET, nojoliet_cancel, NULL, 0, NULL }, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
124 { HOPT_JOLIETLONG, NULL, NULL, 0, NULL }, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
125 { HOPT_VERS2, vers2_cancel, NULL, 0, NULL }, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
126 { HOPT_NOVERS2, novers2_cancel, NULL, 0, NULL }, |
| 0 | 127 { HOPT_TRAILDOT, trail_cancel, NULL, MO_DEFAULT, NULL }, |
| 128 { HOPT_NOTRAILDOT, notrail_cancel, NULL, 0, NULL }, | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
129 { "sector", NULL, "0", MO_HASVALUE, NULL}, |
| 0 | 130 }; |
| 131 | |
| 132 static mntopts_t hsfs_proto_opttbl = { | |
| 133 sizeof (hsfs_options) / sizeof (mntopt_t), | |
| 134 hsfs_options | |
| 135 }; | |
| 136 | |
| 5312 | 137 /* |
| 138 * Indicates whether to enable the I/O scheduling and readahead logic | |
| 139 * 1 - Enable, 0 - Do not Enable. | |
| 140 * Debugging purposes. | |
| 141 */ | |
| 142 int do_schedio = 1; | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
143 static int hsfsfstype; |
| 0 | 144 static int hsfsinit(int, char *); |
| 145 | |
| 146 static vfsdef_t vfw = { | |
| 147 VFSDEF_VERSION, | |
| 148 "hsfs", | |
| 149 hsfsinit, | |
| 6855 | 150 /* We don't suppport remounting */ |
|
12633
9f2cda0ed938
PSARC 2010/144 lofi(7D) in non global zones
John Levon <john.levon@sun.com>
parents:
6894
diff
changeset
|
151 VSW_HASPROTO|VSW_STATS|VSW_CANLOFI|VSW_ZMOUNT, |
| 0 | 152 &hsfs_proto_opttbl |
| 153 }; | |
| 154 | |
| 155 static struct modlfs modlfs = { | |
| 156 &mod_fsops, "filesystem for HSFS", &vfw | |
| 157 }; | |
| 158 | |
| 159 static struct modlinkage modlinkage = { | |
| 160 MODREV_1, (void *)&modlfs, NULL | |
| 161 }; | |
| 162 | |
| 163 char _depends_on[] = "fs/specfs"; | |
| 164 | |
| 5312 | 165 extern void hsched_init_caches(void); |
| 166 extern void hsched_fini_caches(void); | |
| 167 | |
| 168 | |
| 0 | 169 int |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
170 _init(void) |
| 0 | 171 { |
| 172 return (mod_install(&modlinkage)); | |
| 173 } | |
| 174 | |
| 175 int | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
176 _fini(void) |
| 0 | 177 { |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
178 int error; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
179 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
180 error = mod_remove(&modlinkage); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
181 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
182 DTRACE_PROBE1(mod_remove, int, error); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
183 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
184 if (error) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
185 return (error); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
186 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
187 mutex_destroy(&hs_mounttab_lock); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
188 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
189 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
190 * Tear down the operations vectors |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
191 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
192 (void) vfs_freevfsops_by_type(hsfsfstype); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
193 vn_freevnodeops(hsfs_vnodeops); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
194 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
195 hs_fini_hsnode_cache(); |
| 5312 | 196 hsched_fini_caches(); |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
197 return (0); |
| 0 | 198 } |
| 199 | |
| 200 int | |
| 201 _info(struct modinfo *modinfop) | |
| 202 { | |
| 203 return (mod_info(&modlinkage, modinfop)); | |
| 204 } | |
| 205 | |
| 206 #define BDEVFLAG(dev) ((devopsp[getmajor(dev)])->devo_cb_ops->cb_flag) | |
| 207 | |
| 208 kmutex_t hs_mounttab_lock; | |
| 209 struct hsfs *hs_mounttab = NULL; | |
| 210 | |
| 211 /* default mode, uid, gid */ | |
| 212 mode_t hsfs_default_mode = 0555; | |
| 213 uid_t hsfs_default_uid = 0; | |
| 214 gid_t hsfs_default_gid = 3; | |
| 215 | |
| 5312 | 216 extern void hsched_init(struct hsfs *fsp, int fsid, |
| 217 struct modlinkage *modlinkage); | |
| 218 extern void hsched_fini(struct hsfs_queue *hqueue); | |
| 219 extern void hsfs_init_kstats(struct hsfs *fsp, int fsid); | |
| 220 extern void hsfs_fini_kstats(struct hsfs *fsp); | |
| 221 | |
| 0 | 222 static int hsfs_mount(struct vfs *vfsp, struct vnode *mvp, |
| 223 struct mounta *uap, struct cred *cr); | |
| 224 static int hsfs_unmount(struct vfs *vfsp, int, struct cred *cr); | |
| 225 static int hsfs_root(struct vfs *vfsp, struct vnode **vpp); | |
| 226 static int hsfs_statvfs(struct vfs *vfsp, struct statvfs64 *sbp); | |
| 227 static int hsfs_vget(struct vfs *vfsp, struct vnode **vpp, struct fid *fidp); | |
| 228 static int hsfs_mountroot(struct vfs *, enum whymountroot); | |
| 229 | |
| 230 static int hs_mountfs(struct vfs *vfsp, dev_t dev, char *path, | |
| 231 mode_t mode, int flags, struct cred *cr, int isroot); | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
232 static int hs_getrootvp(struct vfs *vfsp, struct hsfs *fsp, size_t pathsize); |
| 0 | 233 static int hs_findhsvol(struct hsfs *fsp, struct vnode *vp, |
| 234 struct hs_volume *hvp); | |
| 235 static int hs_parsehsvol(struct hsfs *fsp, uchar_t *volp, | |
| 236 struct hs_volume *hvp); | |
| 237 static int hs_findisovol(struct hsfs *fsp, struct vnode *vp, | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
238 struct hs_volume *hvp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
239 struct hs_volume *svp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
240 struct hs_volume *jvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
241 static int hs_joliet_level(uchar_t *volp); |
| 0 | 242 static int hs_parseisovol(struct hsfs *fsp, uchar_t *volp, |
| 243 struct hs_volume *hvp); | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
244 static void hs_copylabel(struct hs_volume *, unsigned char *, int); |
| 0 | 245 static int hs_getmdev(struct vfs *, char *fspec, int flags, dev_t *pdev, |
| 246 mode_t *mode, cred_t *cr); | |
| 247 static int hs_findvoldesc(dev_t rdev, int desc_sec); | |
| 248 | |
| 249 static int | |
| 250 hsfsinit(int fstype, char *name) | |
| 251 { | |
| 252 static const fs_operation_def_t hsfs_vfsops_template[] = { | |
|
3898
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
253 VFSNAME_MOUNT, { .vfs_mount = hsfs_mount }, |
|
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
254 VFSNAME_UNMOUNT, { .vfs_unmount = hsfs_unmount }, |
|
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
255 VFSNAME_ROOT, { .vfs_root = hsfs_root }, |
|
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
256 VFSNAME_STATVFS, { .vfs_statvfs = hsfs_statvfs }, |
|
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
257 VFSNAME_VGET, { .vfs_vget = hsfs_vget }, |
|
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
258 VFSNAME_MOUNTROOT, { .vfs_mountroot = hsfs_mountroot }, |
|
c788126f2a20
PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism
rsb
parents:
2904
diff
changeset
|
259 NULL, NULL |
| 0 | 260 }; |
| 261 int error; | |
| 262 | |
| 263 error = vfs_setfsops(fstype, hsfs_vfsops_template, NULL); | |
| 264 if (error != 0) { | |
| 265 cmn_err(CE_WARN, "hsfsinit: bad vfs ops template"); | |
| 266 return (error); | |
| 267 } | |
| 268 | |
| 269 error = vn_make_ops(name, hsfs_vnodeops_template, &hsfs_vnodeops); | |
| 270 if (error != 0) { | |
| 271 (void) vfs_freevfsops_by_type(fstype); | |
| 272 cmn_err(CE_WARN, "hsfsinit: bad vnode ops template"); | |
| 273 return (error); | |
| 274 } | |
| 275 | |
| 276 hsfsfstype = fstype; | |
| 277 mutex_init(&hs_mounttab_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 278 hs_init_hsnode_cache(); | |
| 5312 | 279 hsched_init_caches(); |
| 0 | 280 return (0); |
| 281 } | |
| 282 | |
| 283 /*ARGSUSED*/ | |
| 284 static int | |
| 285 hsfs_mount(struct vfs *vfsp, struct vnode *mvp, | |
| 286 struct mounta *uap, struct cred *cr) | |
| 287 { | |
| 288 int vnode_busy; | |
| 289 dev_t dev; | |
| 290 struct pathname dpn; | |
| 291 int error; | |
| 292 mode_t mode; | |
| 293 int flags; /* this will hold the mount specific data */ | |
| 294 | |
| 295 if ((error = secpolicy_fs_mount(cr, mvp, vfsp)) != 0) | |
| 296 return (error); | |
| 297 | |
| 298 if (mvp->v_type != VDIR) | |
| 299 return (ENOTDIR); | |
| 300 | |
| 301 /* mount option must be read only, else mount will be rejected */ | |
| 302 if (!(uap->flags & MS_RDONLY)) | |
| 303 return (EROFS); | |
| 304 | |
| 305 /* | |
| 306 * We already told the framework that we don't support remounting. | |
| 307 */ | |
| 308 ASSERT(!(uap->flags & MS_REMOUNT)); | |
| 309 | |
| 310 mutex_enter(&mvp->v_lock); | |
| 311 vnode_busy = (mvp->v_count != 1) || (mvp->v_flag & VROOT); | |
| 312 mutex_exit(&mvp->v_lock); | |
| 313 | |
| 314 if ((uap->flags & MS_OVERLAY) == 0 && vnode_busy) { | |
| 315 return (EBUSY); | |
| 316 } | |
| 317 | |
| 318 /* | |
| 319 * Check for the options that actually affect things | |
| 320 * at our level. | |
| 321 */ | |
| 322 flags = 0; | |
| 323 if (vfs_optionisset(vfsp, HOPT_NOMAPLCASE, NULL)) | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
324 flags |= HSFSMNT_NOMAPLCASE; |
| 0 | 325 if (vfs_optionisset(vfsp, HOPT_NOTRAILDOT, NULL)) |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
326 flags |= HSFSMNT_NOTRAILDOT; |
| 0 | 327 if (vfs_optionisset(vfsp, HOPT_NRR, NULL)) |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
328 flags |= HSFSMNT_NORRIP; |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
329 if (vfs_optionisset(vfsp, HOPT_NOJOLIET, NULL)) |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
330 flags |= HSFSMNT_NOJOLIET; |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
331 if (vfs_optionisset(vfsp, HOPT_JOLIETLONG, NULL)) |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
332 flags |= HSFSMNT_JOLIETLONG; |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
333 if (vfs_optionisset(vfsp, HOPT_NOVERS2, NULL)) |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
334 flags |= HSFSMNT_NOVERS2; |
| 0 | 335 |
| 336 error = pn_get(uap->dir, (uap->flags & MS_SYSSPACE) ? | |
| 337 UIO_SYSSPACE : UIO_USERSPACE, &dpn); | |
| 338 if (error) | |
| 339 return (error); | |
| 340 | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
341 error = hs_getmdev(vfsp, uap->spec, uap->flags, &dev, &mode, cr); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
342 if (error != 0) { |
| 0 | 343 pn_free(&dpn); |
| 344 return (error); | |
| 345 } | |
| 346 | |
| 347 /* | |
| 348 * If the device is a tape, return error | |
| 349 */ | |
| 350 if ((BDEVFLAG(dev) & D_TAPE) == D_TAPE) { | |
| 351 pn_free(&dpn); | |
| 352 return (ENOTBLK); | |
| 353 } | |
| 354 | |
| 355 /* | |
| 356 * Mount the filesystem. | |
| 357 */ | |
| 358 error = hs_mountfs(vfsp, dev, dpn.pn_path, mode, flags, cr, 0); | |
| 359 pn_free(&dpn); | |
| 360 return (error); | |
| 361 } | |
| 362 | |
| 363 /*ARGSUSED*/ | |
| 364 static int | |
| 365 hsfs_unmount( | |
| 366 struct vfs *vfsp, | |
| 367 int flag, | |
| 368 struct cred *cr) | |
| 369 { | |
| 370 struct hsfs **tspp; | |
| 371 struct hsfs *fsp; | |
| 372 | |
| 373 if (secpolicy_fs_unmount(cr, vfsp) != 0) | |
| 374 return (EPERM); | |
| 375 | |
| 376 /* | |
| 377 * forced unmount is not supported by this file system | |
| 378 * and thus, ENOTSUP is being returned. | |
| 379 */ | |
| 380 if (flag & MS_FORCE) | |
| 381 return (ENOTSUP); | |
| 382 | |
| 383 fsp = VFS_TO_HSFS(vfsp); | |
| 384 | |
| 385 if (fsp->hsfs_rootvp->v_count != 1) | |
| 386 return (EBUSY); | |
| 387 | |
| 388 /* destroy all old pages and hsnodes for this vfs */ | |
| 389 if (hs_synchash(vfsp)) | |
| 390 return (EBUSY); | |
| 391 | |
| 392 mutex_enter(&hs_mounttab_lock); | |
| 393 for (tspp = &hs_mounttab; *tspp != NULL; tspp = &(*tspp)->hsfs_next) { | |
| 394 if (*tspp == fsp) | |
| 395 break; | |
| 396 } | |
| 397 if (*tspp == NULL) { | |
| 398 mutex_exit(&hs_mounttab_lock); | |
| 399 panic("hsfs_unmount: vfs not mounted?"); | |
| 400 /*NOTREACHED*/ | |
| 401 } | |
| 402 | |
| 403 *tspp = fsp->hsfs_next; | |
| 404 | |
| 405 mutex_exit(&hs_mounttab_lock); | |
| 406 | |
| 5312 | 407 hsfs_fini_kstats(fsp); |
| 5331 | 408 (void) VOP_CLOSE(fsp->hsfs_devvp, FREAD, 1, (offset_t)0, cr, NULL); |
| 0 | 409 VN_RELE(fsp->hsfs_devvp); |
| 410 /* free path table space */ | |
| 411 if (fsp->hsfs_ptbl != NULL) | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
412 kmem_free(fsp->hsfs_ptbl, (size_t)fsp->hsfs_vol.ptbl_len); |
| 0 | 413 /* free path table index table */ |
| 414 if (fsp->hsfs_ptbl_idx != NULL) | |
| 415 kmem_free(fsp->hsfs_ptbl_idx, (size_t) | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
416 (fsp->hsfs_ptbl_idx_size * sizeof (struct ptable_idx))); |
| 0 | 417 |
| 418 /* free "mounted on" pathame */ | |
| 419 if (fsp->hsfs_fsmnt != NULL) | |
| 420 kmem_free(fsp->hsfs_fsmnt, strlen(fsp->hsfs_fsmnt) + 1); | |
| 421 | |
| 5312 | 422 hsched_fini(fsp->hqueue); |
| 423 kmem_free(fsp->hqueue, sizeof (struct hsfs_queue)); | |
| 424 | |
| 0 | 425 mutex_destroy(&fsp->hsfs_free_lock); |
| 426 rw_destroy(&fsp->hsfs_hash_lock); | |
| 427 | |
| 428 kmem_free(fsp, sizeof (*fsp)); | |
| 429 return (0); | |
| 430 } | |
| 431 | |
| 432 /*ARGSUSED*/ | |
| 433 static int | |
| 434 hsfs_root(struct vfs *vfsp, struct vnode **vpp) | |
| 435 { | |
| 436 *vpp = (VFS_TO_HSFS(vfsp))->hsfs_rootvp; | |
| 437 VN_HOLD(*vpp); | |
| 438 return (0); | |
| 439 } | |
| 440 | |
| 441 /*ARGSUSED*/ | |
| 442 static int | |
| 443 hsfs_statvfs(struct vfs *vfsp, struct statvfs64 *sbp) | |
| 444 { | |
| 445 struct hsfs *fsp; | |
| 446 dev32_t d32; | |
| 447 | |
| 448 fsp = VFS_TO_HSFS(vfsp); | |
| 449 if (fsp->hsfs_magic != HSFS_MAGIC) | |
| 450 return (EINVAL); | |
| 451 bzero(sbp, sizeof (*sbp)); | |
| 452 sbp->f_bsize = vfsp->vfs_bsize; | |
| 453 sbp->f_frsize = sbp->f_bsize; /* no fragment, same as block size */ | |
| 454 sbp->f_blocks = (fsblkcnt64_t)fsp->hsfs_vol.vol_size; | |
| 455 | |
| 456 sbp->f_bfree = (fsblkcnt64_t)0; | |
| 457 sbp->f_bavail = (fsblkcnt64_t)0; | |
| 458 sbp->f_files = (fsfilcnt64_t)-1; | |
| 459 sbp->f_ffree = (fsfilcnt64_t)0; | |
| 460 sbp->f_favail = (fsfilcnt64_t)0; | |
| 461 (void) cmpldev(&d32, vfsp->vfs_dev); | |
| 462 sbp->f_fsid = d32; | |
| 463 (void) strcpy(sbp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name); | |
| 464 sbp->f_flag = vf_to_stf(vfsp->vfs_flag); | |
| 465 sbp->f_namemax = fsp->hsfs_namemax; | |
| 466 (void) strcpy(sbp->f_fstr, fsp->hsfs_vol.vol_id); | |
| 467 | |
| 468 return (0); | |
| 469 } | |
| 470 | |
| 471 /* | |
| 472 * Previously nodeid was declared as uint32_t. This has been changed | |
| 473 * to conform better with the ISO9660 standard. The standard states that | |
| 474 * a LBN can be a 32 bit number, as the MAKE_NODEID macro shifts this | |
| 475 * LBN 11 places left (LBN_TO_BYTE) and then shifts the result 5 right | |
| 476 * (divide by 32) we are left with the potential of an overflow if | |
| 477 * confined to a 32 bit value. | |
| 478 */ | |
| 479 | |
| 480 static int | |
| 481 hsfs_vget(struct vfs *vfsp, struct vnode **vpp, struct fid *fidp) | |
| 482 { | |
| 483 struct hsfid *fid; | |
| 484 struct hsfs *fsp; | |
| 485 ino64_t nodeid; | |
| 486 int error; | |
| 487 | |
| 488 fsp = (struct hsfs *)VFS_TO_HSFS(vfsp); | |
| 489 fid = (struct hsfid *)fidp; | |
| 490 | |
| 491 /* | |
| 492 * Look for vnode on hashlist. | |
| 493 * If found, it's now active and the refcnt was incremented. | |
| 494 */ | |
| 495 | |
| 496 rw_enter(&fsp->hsfs_hash_lock, RW_READER); | |
| 497 | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
498 nodeid = fid->hf_ino; |
| 0 | 499 |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
500 if ((*vpp = hs_findhash(nodeid, fid->hf_dir_lbn, |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
501 (uint_t)fid->hf_dir_off, vfsp)) == NULL) { |
| 0 | 502 /* |
| 503 * Not in cache, so we need to remake it. | |
| 504 * hs_remakenode() will read the directory entry | |
| 505 * and then check again to see if anyone else has | |
| 506 * put it in the cache. | |
| 507 */ | |
| 508 rw_exit(&fsp->hsfs_hash_lock); | |
| 509 error = hs_remakenode(fid->hf_dir_lbn, (uint_t)fid->hf_dir_off, | |
| 510 vfsp, vpp); | |
| 511 return (error); | |
| 512 } | |
| 513 rw_exit(&fsp->hsfs_hash_lock); | |
| 514 return (0); | |
| 515 } | |
| 516 | |
| 517 | |
| 518 #define CHECKSUM_SIZE (64 * 1024) | |
| 519 | |
| 520 /* | |
| 521 * Compute a CD-ROM fsid by checksumming the first 64K of data on the CD | |
| 522 * We use the 'fsp' argument to determine the location of the root | |
| 523 * directory entry, and we start reading from there. | |
| 524 */ | |
| 525 static int | |
| 526 compute_cdrom_id(struct hsfs *fsp, vnode_t *devvp) | |
| 527 { | |
| 528 uint_t secno; | |
| 529 struct hs_volume *hsvp = &fsp->hsfs_vol; | |
| 530 struct buf *bp; | |
| 531 int error; | |
| 532 int fsid; | |
| 533 | |
| 534 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
|
535 bp = bread(devvp->v_rdev, secno * 4, CHECKSUM_SIZE); |
| 0 | 536 error = geterror(bp); |
|
494
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
537 |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
538 /* |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
539 * 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
|
540 * for a nonexistant/corrupted piece of the device |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
541 * (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
|
542 * try to use the checksumming method then. |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
543 */ |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
544 if (!error && bp->b_bcount == CHECKSUM_SIZE) { |
| 0 | 545 int *ibuf = (int *)bp->b_un.b_addr; |
| 546 int i; | |
| 547 | |
| 548 fsid = 0; | |
| 549 | |
|
494
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
550 for (i = 0; i < CHECKSUM_SIZE / sizeof (int); i++) |
| 0 | 551 fsid ^= ibuf[ i ]; |
|
494
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
552 } else { |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
553 /* |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
554 * Fallback - use creation date |
|
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
555 */ |
| 0 | 556 fsid = hsvp->cre_date.tv_sec; |
|
494
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
557 } |
| 0 | 558 |
| 559 brelse(bp); | |
| 560 | |
| 561 return (fsid); | |
| 562 } | |
| 563 | |
| 564 | |
| 565 /*ARGSUSED*/ | |
| 566 static int | |
| 567 hs_mountfs( | |
| 568 struct vfs *vfsp, | |
| 569 dev_t dev, | |
| 570 char *path, | |
| 571 mode_t mode, | |
| 572 int mount_flags, | |
| 573 struct cred *cr, | |
| 574 int isroot) | |
| 575 { | |
| 576 struct vnode *devvp; | |
| 577 struct hsfs *tsp; | |
| 578 struct hsfs *fsp = NULL; | |
| 579 struct vattr vap; | |
| 580 struct hsnode *hp; | |
| 581 int error; | |
| 582 struct timeval tv; | |
| 583 int fsid; | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
584 int use_rrip; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
585 int use_vers2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
586 int use_joliet; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
587 int has_rrip = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
588 int has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
589 int has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
590 int force_rrip_off; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
591 int force_vers2_off; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
592 int force_joliet_off; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
593 size_t pathbufsz = strlen(path) + 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
594 int redo_rootvp; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
595 |
|
6894
5303cd53a81b
6715049 mount_hsfs from a non-existent slice corrupts kernel heap, system panics
danmcd
parents:
6855
diff
changeset
|
596 struct hs_volume *svp = NULL; /* Supplemental VD for ISO-9660:1999 */ |
|
5303cd53a81b
6715049 mount_hsfs from a non-existent slice corrupts kernel heap, system panics
danmcd
parents:
6855
diff
changeset
|
597 struct hs_volume *jvp = NULL; /* Joliet VD */ |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
598 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
599 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
600 * The rules for which extension will be used are: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
601 * 1. No specific mount options given: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
602 * - use rrip if available |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
603 * - use ISO9660:1999 if available |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
604 * - use joliet if available. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
605 * 2. rrip/ISO9660:1999/joliet explicitly disabled via mount option: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
606 * - use next "lower" extension |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
607 * 3. joliet/ISO9660:1999/rrip explicitly requested via mount option: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
608 * - disable rrip support even if available |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
609 * - disable IOS9660:1999 support even if available |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
610 * |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
611 * We need to adjust these flags as we discover the extensions |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
612 * present. See below. These are just the starting values. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
613 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
614 use_rrip = (mount_flags & HSFSMNT_NORRIP) == 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
615 use_vers2 = (mount_flags & HSFSMNT_NOVERS2) == 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
616 use_joliet = (mount_flags & HSFSMNT_NOJOLIET) == 0; |
| 0 | 617 |
| 618 /* | |
| 619 * Open the device | |
| 620 */ | |
| 621 devvp = makespecvp(dev, VBLK); | |
| 622 ASSERT(devvp != 0); | |
| 623 | |
| 624 /* | |
| 625 * Open the target device (file) for read only. | |
| 626 */ | |
| 5331 | 627 if (error = VOP_OPEN(&devvp, FREAD, cr, NULL)) { |
| 0 | 628 VN_RELE(devvp); |
| 629 return (error); | |
| 630 } | |
| 631 | |
| 632 /* | |
| 633 * Refuse to go any further if this | |
| 634 * device is being used for swapping | |
| 635 */ | |
| 636 if (IS_SWAPVP(common_specvp(devvp))) { | |
| 637 error = EBUSY; | |
| 638 goto cleanup; | |
| 639 } | |
| 640 | |
| 641 vap.va_mask = AT_SIZE; | |
| 5331 | 642 if ((error = VOP_GETATTR(devvp, &vap, ATTR_COMM, cr, NULL)) != 0) { |
| 0 | 643 cmn_err(CE_NOTE, "Cannot get attributes of the CD-ROM driver"); |
| 644 goto cleanup; | |
| 645 } | |
| 646 | |
| 647 /* | |
| 648 * Make sure we have a nonzero size partition. | |
| 649 * The current version of the SD driver will *not* fail the open | |
| 650 * of such a partition so we have to check for it here. | |
| 651 */ | |
| 652 if (vap.va_size == 0) { | |
| 653 error = ENXIO; | |
| 654 goto cleanup; | |
| 655 } | |
| 656 | |
| 657 /* | |
| 658 * Init a new hsfs structure. | |
| 659 */ | |
| 660 fsp = kmem_zalloc(sizeof (*fsp), KM_SLEEP); | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
661 svp = kmem_zalloc(sizeof (*svp), KM_SLEEP); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
662 jvp = kmem_zalloc(sizeof (*jvp), KM_SLEEP); |
| 0 | 663 |
| 664 /* hardwire perms, uid, gid */ | |
| 665 fsp->hsfs_vol.vol_uid = hsfs_default_uid; | |
| 666 fsp->hsfs_vol.vol_gid = hsfs_default_gid; | |
| 667 fsp->hsfs_vol.vol_prot = hsfs_default_mode; | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
668 svp->vol_uid = hsfs_default_uid; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
669 svp->vol_gid = hsfs_default_gid; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
670 svp->vol_prot = hsfs_default_mode; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
671 jvp->vol_uid = hsfs_default_uid; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
672 jvp->vol_gid = hsfs_default_gid; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
673 jvp->vol_prot = hsfs_default_mode; |
| 0 | 674 |
| 675 /* | |
| 676 * Look for a Standard File Structure Volume Descriptor, | |
| 677 * of which there must be at least one. | |
| 678 * If found, check for volume size consistency. | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
679 * |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
680 * If svp->lbn_size is != 0, we did find a ISO-9660:1999 SVD |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
681 * If jvp->lbn_size is != 0, we did find a Joliet SVD. |
| 0 | 682 */ |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
683 fsp->hsfs_namemax = ISO_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
684 fsp->hsfs_namelen = ISO_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
685 error = hs_findisovol(fsp, devvp, &fsp->hsfs_vol, svp, jvp); |
|
1025
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents:
494
diff
changeset
|
686 if (error == EINVAL) /* no iso 9660 - try high sierra ... */ |
|
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents:
494
diff
changeset
|
687 error = hs_findhsvol(fsp, devvp, &fsp->hsfs_vol); |
| 0 | 688 |
| 689 if (error) | |
| 690 goto cleanup; | |
| 691 | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
692 DTRACE_PROBE4(findvol, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
693 struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
694 struct hs_volume *, &fsp->hsfs_vol, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
695 struct hs_volume *, svp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
696 struct hs_volume *, jvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
697 |
| 0 | 698 /* |
| 699 * Generate a file system ID from the CD-ROM, | |
| 700 * and check it for uniqueness. | |
| 701 * | |
| 702 * What we are aiming for is some chance of integrity | |
| 703 * across disk change. That is, if a client has an fhandle, | |
| 704 * it will be valid as long as the same disk is mounted. | |
| 705 */ | |
| 706 fsid = compute_cdrom_id(fsp, devvp); | |
| 707 | |
| 708 mutex_enter(&hs_mounttab_lock); | |
| 709 | |
| 710 if (fsid == 0 || fsid == -1) { | |
| 711 uniqtime(&tv); | |
| 712 fsid = tv.tv_sec; | |
| 713 } else /* make sure that the fsid is unique */ | |
| 714 for (tsp = hs_mounttab; tsp != NULL; tsp = tsp->hsfs_next) { | |
| 715 if (fsid == tsp->hsfs_vfs->vfs_fsid.val[0]) { | |
| 716 uniqtime(&tv); | |
| 717 fsid = tv.tv_sec; | |
| 718 break; | |
| 719 } | |
| 720 } | |
| 721 | |
| 722 fsp->hsfs_next = hs_mounttab; | |
| 723 hs_mounttab = fsp; | |
| 724 | |
| 725 fsp->hsfs_devvp = devvp; | |
| 726 fsp->hsfs_vfs = vfsp; | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
727 fsp->hsfs_fsmnt = kmem_alloc(pathbufsz, KM_SLEEP); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
728 (void) strlcpy(fsp->hsfs_fsmnt, path, pathbufsz); |
| 0 | 729 |
| 730 mutex_init(&fsp->hsfs_free_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 731 rw_init(&fsp->hsfs_hash_lock, NULL, RW_DEFAULT, NULL); | |
| 732 | |
| 733 vfsp->vfs_data = (caddr_t)fsp; | |
| 734 vfsp->vfs_dev = dev; | |
| 735 vfsp->vfs_fstype = hsfsfstype; | |
| 736 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; /* %% */ | |
| 737 vfsp->vfs_fsid.val[0] = fsid; | |
| 738 vfsp->vfs_fsid.val[1] = hsfsfstype; | |
| 739 | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
740 if (!hs_getrootvp(vfsp, fsp, pathbufsz)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
741 DTRACE_PROBE1(rootvp__failed, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
742 error = EINVAL; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
743 goto cleanup; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
744 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
745 DTRACE_PROBE1(rootvp, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
746 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
747 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
748 * Attempt to discover a RR extension. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
749 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
750 if (use_rrip) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
751 hp = VTOH(fsp->hsfs_rootvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
752 hs_check_root_dirent(fsp->hsfs_rootvp, &(hp->hs_dirent)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
753 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
754 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
755 has_rrip = IS_RRIP_IMPLEMENTED(fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
756 has_vers2 = (svp->lbn_size != 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
757 has_joliet = (jvp->lbn_size != 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
758 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
759 DTRACE_PROBE4(voltype__suggested, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
760 int, use_rrip, int, use_vers2, int, use_joliet); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
761 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
762 DTRACE_PROBE4(voltype__actual, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
763 int, has_rrip, int, has_vers2, int, has_joliet); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
764 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
765 DTRACE_PROBE4(findvol, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
766 struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
767 struct hs_volume *, &fsp->hsfs_vol, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
768 struct hs_volume *, svp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
769 struct hs_volume *, jvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
770 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
771 force_rrip_off = !use_rrip || |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
772 (vfs_optionisset(vfsp, HOPT_JOLIET, NULL) && has_joliet) || |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
773 (vfs_optionisset(vfsp, HOPT_VERS2, NULL) && has_vers2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
774 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
775 force_vers2_off = !use_vers2 || |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
776 (vfs_optionisset(vfsp, HOPT_JOLIET, NULL) && has_joliet); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
777 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
778 force_joliet_off = !use_joliet; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
779 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
780 DTRACE_PROBE4(voltype__force_off, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
781 int, force_rrip_off, int, force_vers2_off, int, force_joliet_off); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
782 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
783 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
784 * At the moment, we have references of all three possible |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
785 * extensions (RR, ISO9660:1999/v2 and Joliet) if present. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
786 * |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
787 * The "active" volume descriptor is RRIP (or ISO9660:1988). |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
788 * We now switch to the user-requested one. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
789 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
790 redo_rootvp = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
791 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
792 if (force_rrip_off || !has_rrip) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
793 if (has_vers2 && !force_vers2_off) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
794 VN_RELE(fsp->hsfs_rootvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
795 bcopy(svp, &fsp->hsfs_vol, sizeof (struct hs_volume)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
796 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO_V2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
797 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
798 redo_rootvp = 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
799 has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
800 } else if (has_joliet && !force_joliet_off) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
801 VN_RELE(fsp->hsfs_rootvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
802 bcopy(jvp, &fsp->hsfs_vol, sizeof (struct hs_volume)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
803 fsp->hsfs_vol_type = HS_VOL_TYPE_JOLIET; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
804 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
805 redo_rootvp = 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
806 has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
807 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
808 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
809 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
810 if (redo_rootvp) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
811 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
812 * Make sure not to use Rock Ridge. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
813 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
814 UNSET_IMPL_BIT(fsp, RRIP_BIT); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
815 UNSET_SUSP_BIT(fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
816 has_rrip = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
817 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
818 if (!hs_getrootvp(vfsp, fsp, pathbufsz)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
819 DTRACE_PROBE1(rootvp__failed, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
820 error = EINVAL; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
821 goto cleanup; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
822 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
823 DTRACE_PROBE1(rootvp, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
824 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
825 if (IS_RRIP_IMPLEMENTED(fsp)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
826 has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
827 has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
828 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
829 if (force_vers2_off) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
830 has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
831 if (force_joliet_off) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
832 has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
833 DTRACE_PROBE4(voltype__taken, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
834 int, has_rrip, int, has_vers2, int, has_joliet); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
835 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
836 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
837 * mark root node as VROOT |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
838 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
839 fsp->hsfs_rootvp->v_flag |= VROOT; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
840 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
841 /* Here we take care of some special case stuff for mountroot */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
842 if (isroot) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
843 fsp->hsfs_rootvp->v_rdev = devvp->v_rdev; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
844 rootvp = fsp->hsfs_rootvp; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
845 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
846 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
847 if (IS_RRIP_IMPLEMENTED(fsp)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
848 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
849 * if RRIP, don't copy NOMAPLCASE or NOTRAILDOT to hsfs_flags |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
850 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
851 mount_flags &= ~(HSFSMNT_NOMAPLCASE | HSFSMNT_NOTRAILDOT); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
852 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
853 fsp->hsfs_namemax = RRIP_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
854 fsp->hsfs_namelen = RRIP_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
855 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
856 ASSERT(vfs_optionisset(vfsp, HOPT_RR, NULL)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
857 vfs_clearmntopt(vfsp, HOPT_VERS2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
858 vfs_clearmntopt(vfsp, HOPT_JOLIET); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
859 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
860 } else switch (fsp->hsfs_vol_type) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
861 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
862 case HS_VOL_TYPE_HS: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
863 case HS_VOL_TYPE_ISO: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
864 default: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
865 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
866 * if iso v1, don't allow trailing spaces in iso file names |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
867 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
868 mount_flags |= HSFSMNT_NOTRAILSPACE; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
869 fsp->hsfs_namemax = ISO_NAMELEN_V2_MAX; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
870 fsp->hsfs_namelen = ISO_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
871 vfs_clearmntopt(vfsp, HOPT_RR); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
872 vfs_clearmntopt(vfsp, HOPT_VERS2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
873 vfs_clearmntopt(vfsp, HOPT_JOLIET); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
874 break; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
875 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
876 case HS_VOL_TYPE_ISO_V2: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
877 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
878 * if iso v2, don't copy NOTRAILDOT to hsfs_flags |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
879 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
880 mount_flags &= ~HSFSMNT_NOTRAILDOT; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
881 mount_flags |= HSFSMNT_NOMAPLCASE | HSFSMNT_NOVERSION; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
882 fsp->hsfs_namemax = ISO_NAMELEN_V2_MAX; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
883 fsp->hsfs_namelen = ISO_NAMELEN_V2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
884 vfs_setmntopt(vfsp, HOPT_VERS2, NULL, 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
885 vfs_clearmntopt(vfsp, HOPT_RR); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
886 vfs_clearmntopt(vfsp, HOPT_JOLIET); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
887 break; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
888 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
889 case HS_VOL_TYPE_JOLIET: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
890 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
891 * if Joliet, don't copy NOMAPLCASE or NOTRAILDOT to hsfs_flags |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
892 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
893 mount_flags &= ~(HSFSMNT_NOMAPLCASE | HSFSMNT_NOTRAILDOT); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
894 mount_flags |= HSFSMNT_NOMAPLCASE; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
895 if (mount_flags & HSFSMNT_JOLIETLONG) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
896 fsp->hsfs_namemax = JOLIET_NAMELEN_MAX*3; /* UTF-8 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
897 else |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
898 fsp->hsfs_namemax = MAXNAMELEN-1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
899 fsp->hsfs_namelen = JOLIET_NAMELEN*2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
900 vfs_setmntopt(vfsp, HOPT_JOLIET, NULL, 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
901 vfs_clearmntopt(vfsp, HOPT_RR); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
902 vfs_clearmntopt(vfsp, HOPT_VERS2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
903 break; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
904 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
905 |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
906 /* |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
907 * Add the HSFSMNT_INODE pseudo mount flag to the current mount flags. |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
908 */ |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
909 fsp->hsfs_flags = mount_flags | (fsp->hsfs_flags & HSFSMNT_INODE); |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
910 |
| 5312 | 911 /* |
| 912 * Setup I/O Scheduling structures | |
| 913 */ | |
| 914 if (do_schedio) { | |
| 915 fsp->hqueue = kmem_alloc(sizeof (struct hsfs_queue), KM_SLEEP); | |
| 916 hsched_init(fsp, fsid, &modlinkage); | |
| 917 } | |
| 918 | |
| 919 /* | |
| 920 * Setup kstats | |
| 921 */ | |
| 922 hsfs_init_kstats(fsp, fsid); | |
| 923 | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
924 DTRACE_PROBE1(mount__done, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
925 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
926 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
927 * set the magic word |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
928 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
929 fsp->hsfs_magic = HSFS_MAGIC; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
930 mutex_exit(&hs_mounttab_lock); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
931 |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
932 kmem_free(svp, sizeof (*svp)); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
933 kmem_free(jvp, sizeof (*jvp)); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
934 |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
935 return (0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
936 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
937 cleanup: |
| 5331 | 938 (void) VOP_CLOSE(devvp, FREAD, 1, (offset_t)0, cr, NULL); |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
939 VN_RELE(devvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
940 if (fsp) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
941 kmem_free(fsp, sizeof (*fsp)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
942 if (svp) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
943 kmem_free(svp, sizeof (*svp)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
944 if (jvp) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
945 kmem_free(jvp, sizeof (*jvp)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
946 return (error); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
947 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
948 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
949 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
950 * Get the rootvp associated with fsp->hsfs_vol |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
951 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
952 static int |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
953 hs_getrootvp( |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
954 struct vfs *vfsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
955 struct hsfs *fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
956 size_t pathsize) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
957 { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
958 struct hsnode *hp; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
959 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
960 ASSERT(pathsize == strlen(fsp->hsfs_fsmnt) + 1); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
961 |
| 0 | 962 /* |
| 963 * If the root directory does not appear to be | |
| 964 * valid, use what it points to as "." instead. | |
| 965 * Some Defense Mapping Agency disks are non-conformant | |
| 966 * in this way. | |
| 967 */ | |
| 968 if (!hsfs_valid_dir(&fsp->hsfs_vol.root_dir)) { | |
| 969 hs_log_bogus_disk_warning(fsp, HSFS_ERR_BAD_ROOT_DIR, 0); | |
| 970 if (hs_remakenode(fsp->hsfs_vol.root_dir.ext_lbn, | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
971 (uint_t)0, vfsp, &fsp->hsfs_rootvp)) { |
|
1025
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents:
494
diff
changeset
|
972 hs_mounttab = hs_mounttab->hsfs_next; |
|
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents:
494
diff
changeset
|
973 mutex_destroy(&fsp->hsfs_free_lock); |
|
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
frankho
parents:
494
diff
changeset
|
974 rw_destroy(&fsp->hsfs_hash_lock); |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
975 kmem_free(fsp->hsfs_fsmnt, pathsize); |
|
494
e082e44c7fce
6244328 hsfs not resistant against malformed ISO9660 filesystems, crashes/hangs
frankho
parents:
0
diff
changeset
|
976 mutex_exit(&hs_mounttab_lock); |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
977 return (0); |
| 0 | 978 } |
| 979 } else { | |
| 980 fsp->hsfs_rootvp = hs_makenode(&fsp->hsfs_vol.root_dir, | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
981 fsp->hsfs_vol.root_dir.ext_lbn, 0, vfsp); |
| 0 | 982 } |
| 983 | |
| 984 /* XXX - ignore the path table for now */ | |
| 985 fsp->hsfs_ptbl = NULL; | |
| 986 hp = VTOH(fsp->hsfs_rootvp); | |
| 987 hp->hs_ptbl_idx = NULL; | |
| 988 | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
989 return (1); |
| 0 | 990 } |
| 991 | |
| 992 /* | |
| 993 * hs_findhsvol() | |
| 994 * | |
| 995 * Locate the Standard File Structure Volume Descriptor and | |
| 996 * parse it into an hs_volume structure. | |
| 997 * | |
| 998 * XXX - May someday want to look for Coded Character Set FSVD, too. | |
| 999 */ | |
| 1000 static int | |
| 1001 hs_findhsvol(struct hsfs *fsp, struct vnode *vp, struct hs_volume *hvp) | |
| 1002 { | |
| 1003 struct buf *secbp; | |
| 1004 int i; | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1005 int n; |
| 0 | 1006 uchar_t *volp; |
| 1007 int error; | |
| 1008 uint_t secno; | |
| 1009 | |
| 1010 secno = hs_findvoldesc(vp->v_rdev, HS_VOLDESC_SEC); | |
| 1011 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); | |
| 1012 error = geterror(secbp); | |
| 1013 | |
| 1014 if (error != 0) { | |
| 1015 cmn_err(CE_NOTE, "hs_findhsvol: bread: error=(%d)", error); | |
| 1016 brelse(secbp); | |
| 1017 return (error); | |
| 1018 } | |
| 1019 | |
| 1020 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1021 | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1022 /* |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1023 * To avoid that we read the whole medium in case that someone prepares |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1024 * a malicious "fs image", we read at most 32 blocks. |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1025 */ |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1026 for (n = 0; n < 32 && |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1027 HSV_DESC_TYPE(volp) != VD_EOV; n++) { |
| 0 | 1028 for (i = 0; i < HSV_ID_STRLEN; i++) |
| 1029 if (HSV_STD_ID(volp)[i] != HSV_ID_STRING[i]) | |
| 1030 goto cantfind; | |
| 1031 if (HSV_STD_VER(volp) != HSV_ID_VER) | |
| 1032 goto cantfind; | |
| 1033 switch (HSV_DESC_TYPE(volp)) { | |
| 1034 case VD_SFS: | |
| 1035 /* Standard File Structure */ | |
| 1036 fsp->hsfs_vol_type = HS_VOL_TYPE_HS; | |
| 1037 error = hs_parsehsvol(fsp, volp, hvp); | |
| 1038 brelse(secbp); | |
| 1039 return (error); | |
| 1040 | |
| 1041 case VD_CCFS: | |
| 1042 /* Coded Character File Structure */ | |
| 1043 case VD_BOOT: | |
| 1044 case VD_UNSPEC: | |
| 1045 case VD_EOV: | |
| 1046 break; | |
| 1047 } | |
| 1048 brelse(secbp); | |
| 1049 ++secno; | |
| 1050 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); | |
| 1051 | |
| 1052 error = geterror(secbp); | |
| 1053 | |
| 1054 if (error != 0) { | |
| 1055 cmn_err(CE_NOTE, "hs_findhsvol: bread: error=(%d)", | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1056 error); |
| 0 | 1057 brelse(secbp); |
| 1058 return (error); | |
| 1059 } | |
| 1060 | |
| 1061 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1062 } | |
| 1063 cantfind: | |
| 1064 brelse(secbp); | |
| 1065 return (EINVAL); | |
| 1066 } | |
| 1067 | |
| 1068 /* | |
| 1069 * hs_parsehsvol | |
| 1070 * | |
| 1071 * Parse the Standard File Structure Volume Descriptor into | |
| 1072 * an hs_volume structure. We can't just bcopy it into the | |
| 1073 * structure because of byte-ordering problems. | |
| 1074 * | |
| 1075 */ | |
| 1076 static int | |
| 1077 hs_parsehsvol(struct hsfs *fsp, uchar_t *volp, struct hs_volume *hvp) | |
| 1078 { | |
| 1079 hvp->vol_size = HSV_VOL_SIZE(volp); | |
| 1080 hvp->lbn_size = HSV_BLK_SIZE(volp); | |
| 1081 if (hvp->lbn_size == 0) { | |
| 1082 cmn_err(CE_NOTE, "hs_parsehsvol: logical block size in the " | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1083 "SFSVD is zero"); |
| 0 | 1084 return (EINVAL); |
| 1085 } | |
| 1086 hvp->lbn_shift = ffs((long)hvp->lbn_size) - 1; | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1087 hvp->lbn_secshift = |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1088 ffs((long)howmany(HS_SECTOR_SIZE, (int)hvp->lbn_size)) - 1; |
| 0 | 1089 hvp->lbn_maxoffset = hvp->lbn_size - 1; |
| 1090 hs_parse_longdate(HSV_cre_date(volp), &hvp->cre_date); | |
| 1091 hs_parse_longdate(HSV_mod_date(volp), &hvp->mod_date); | |
| 1092 hvp->file_struct_ver = HSV_FILE_STRUCT_VER(volp); | |
| 1093 hvp->ptbl_len = HSV_PTBL_SIZE(volp); | |
| 1094 hvp->vol_set_size = (ushort_t)HSV_SET_SIZE(volp); | |
| 1095 hvp->vol_set_seq = (ushort_t)HSV_SET_SEQ(volp); | |
| 1096 #if defined(_LITTLE_ENDIAN) | |
| 1097 hvp->ptbl_lbn = HSV_PTBL_MAN_LS(volp); | |
| 1098 #else | |
| 1099 hvp->ptbl_lbn = HSV_PTBL_MAN_MS(volp); | |
| 1100 #endif | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1101 hs_copylabel(hvp, HSV_VOL_ID(volp), 0); |
| 0 | 1102 |
| 1103 /* | |
| 1104 * Make sure that lbn_size is a power of two and otherwise valid. | |
| 1105 */ | |
| 1106 if (hvp->lbn_size & ~(1 << hvp->lbn_shift)) { | |
| 1107 cmn_err(CE_NOTE, | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1108 "hsfs: %d-byte logical block size not supported", |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1109 hvp->lbn_size); |
| 0 | 1110 return (EINVAL); |
| 1111 } | |
| 1112 return (hs_parsedir(fsp, HSV_ROOT_DIR(volp), &hvp->root_dir, | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1113 (char *)NULL, (int *)NULL, HDE_ROOT_DIR_REC_SIZE)); |
| 0 | 1114 } |
| 1115 | |
| 1116 /* | |
| 1117 * hs_findisovol() | |
| 1118 * | |
| 1119 * Locate the Primary Volume Descriptor | |
| 1120 * parse it into an hs_volume structure. | |
| 1121 * | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1122 * XXX - Partition not yet done |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1123 * |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1124 * Except for fsp->hsfs_vol_type, no fsp member may be modified. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1125 * fsp->hsfs_vol is modified indirectly via the *hvp argument. |
| 0 | 1126 */ |
| 1127 static int | |
| 1128 hs_findisovol(struct hsfs *fsp, struct vnode *vp, | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1129 struct hs_volume *hvp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1130 struct hs_volume *svp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1131 struct hs_volume *jvp) |
| 0 | 1132 { |
| 1133 struct buf *secbp; | |
| 1134 int i; | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1135 int n; |
| 0 | 1136 uchar_t *volp; |
| 1137 int error; | |
| 1138 uint_t secno; | |
| 1139 int foundpvd = 0; | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1140 int foundsvd = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1141 int foundjvd = 0; |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1142 int pvd_sum = 0; |
| 0 | 1143 |
| 1144 secno = hs_findvoldesc(vp->v_rdev, ISO_VOLDESC_SEC); | |
| 1145 secbp = bread(vp->v_rdev, secno * 4, ISO_SECTOR_SIZE); | |
| 1146 error = geterror(secbp); | |
| 1147 | |
| 1148 if (error != 0) { | |
| 1149 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", error); | |
| 1150 brelse(secbp); | |
| 1151 return (error); | |
| 1152 } | |
| 1153 | |
| 1154 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1155 | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1156 /* |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1157 * To avoid that we read the whole medium in case that someone prepares |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1158 * a malicious "fs image", we read at most 32 blocks. |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1159 */ |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1160 for (n = 0; n < 32 && |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1161 (enum iso_voldesc_type) ISO_DESC_TYPE(volp) != ISO_VD_EOV; n++) { |
| 0 | 1162 for (i = 0; i < ISO_ID_STRLEN; i++) |
| 1163 if (ISO_STD_ID(volp)[i] != ISO_ID_STRING[i]) | |
| 1164 goto cantfind; | |
| 1165 switch (ISO_DESC_TYPE(volp)) { | |
| 1166 case ISO_VD_PVD: | |
| 1167 /* Standard File Structure */ | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1168 if (ISO_STD_VER(volp) != ISO_ID_VER) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1169 goto cantfind; |
| 0 | 1170 if (foundpvd != 1) { |
| 1171 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO; | |
| 1172 if (error = hs_parseisovol(fsp, volp, hvp)) { | |
| 1173 brelse(secbp); | |
| 1174 return (error); | |
| 1175 } | |
| 1176 foundpvd = 1; | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1177 for (i = 0; i < ISO_SECTOR_SIZE; i++) |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1178 pvd_sum += volp[i]; |
| 0 | 1179 } |
| 1180 break; | |
| 1181 case ISO_VD_SVD: | |
| 1182 /* Supplementary Volume Descriptor */ | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1183 if (ISO_STD_VER(volp) == ISO_ID_VER2 && |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1184 foundsvd != 1) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1185 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1186 if (error = hs_parseisovol(fsp, volp, svp)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1187 brelse(secbp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1188 return (error); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1189 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1190 foundsvd = 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1191 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1192 if (hs_joliet_level(volp) >= 1 && foundjvd != 1) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1193 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1194 if (error = hs_parseisovol(fsp, volp, jvp)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1195 brelse(secbp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1196 return (error); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1197 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1198 foundjvd = 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1199 } |
| 0 | 1200 break; |
| 1201 case ISO_VD_BOOT: | |
| 1202 break; | |
| 1203 case ISO_VD_VPD: | |
| 1204 /* currently cannot handle partition */ | |
| 1205 break; | |
| 1206 case VD_EOV: | |
| 1207 break; | |
| 1208 } | |
| 1209 brelse(secbp); | |
| 1210 ++secno; | |
| 1211 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); | |
| 1212 error = geterror(secbp); | |
| 1213 | |
| 1214 if (error != 0) { | |
| 1215 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1216 error); |
| 0 | 1217 brelse(secbp); |
| 1218 return (error); | |
| 1219 } | |
| 1220 | |
| 1221 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1222 } | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1223 for (n = 0; n < 16; n++) { |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1224 brelse(secbp); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1225 ++secno; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1226 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1227 error = geterror(secbp); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1228 |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1229 if (error != 0) { |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1230 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1231 error); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1232 brelse(secbp); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1233 return (error); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1234 } |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1235 |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1236 /* |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1237 * Check for the signature from mkisofs that grants that |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1238 * the current filesystem allows to use the extent lbn as |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1239 * inode number even in pure ISO9660 mode. |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1240 */ |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1241 volp = (uchar_t *)secbp->b_un.b_addr; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1242 if (strncmp((char *)volp, "MKI ", 4) == 0) { |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1243 int sum; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1244 |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1245 sum = volp[2045]; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1246 sum *= 256; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1247 sum += volp[2046]; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1248 sum *= 256; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1249 sum += volp[2047]; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1250 if (sum == pvd_sum) |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1251 fsp->hsfs_flags |= HSFSMNT_INODE; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1252 break; |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1253 } |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1254 } |
| 0 | 1255 if (foundpvd) { |
| 1256 brelse(secbp); | |
| 1257 return (0); | |
| 1258 } | |
| 1259 cantfind: | |
| 1260 brelse(secbp); | |
| 1261 return (EINVAL); | |
| 1262 } | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1263 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1264 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1265 * Return 0 if no Joliet is found |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1266 * else return Joliet Level 1..3 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1267 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1268 static int |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1269 hs_joliet_level(uchar_t *volp) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1270 { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1271 if (ISO_std_ver(volp)[0] == ISO_ID_VER && |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1272 ISO_svd_esc(volp)[0] == '%' && |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1273 ISO_svd_esc(volp)[1] == '/') { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1274 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1275 switch (ISO_svd_esc(volp)[2]) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1276 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1277 case '@': |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1278 return (1); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1279 case 'C': |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1280 return (2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1281 case 'E': |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1282 return (3); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1283 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1284 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1285 return (0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1286 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1287 |
| 0 | 1288 /* |
| 1289 * hs_parseisovol | |
| 1290 * | |
| 1291 * Parse the Primary Volume Descriptor into an hs_volume structure. | |
| 1292 * | |
| 1293 */ | |
| 1294 static int | |
| 1295 hs_parseisovol(struct hsfs *fsp, uchar_t *volp, struct hs_volume *hvp) | |
| 1296 { | |
| 1297 hvp->vol_size = ISO_VOL_SIZE(volp); | |
| 1298 hvp->lbn_size = ISO_BLK_SIZE(volp); | |
| 1299 if (hvp->lbn_size == 0) { | |
| 1300 cmn_err(CE_NOTE, "hs_parseisovol: logical block size in the " | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1301 "PVD is zero"); |
| 0 | 1302 return (EINVAL); |
| 1303 } | |
| 1304 hvp->lbn_shift = ffs((long)hvp->lbn_size) - 1; | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1305 hvp->lbn_secshift = |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1306 ffs((long)howmany(ISO_SECTOR_SIZE, (int)hvp->lbn_size)) - 1; |
| 0 | 1307 hvp->lbn_maxoffset = hvp->lbn_size - 1; |
| 1308 hs_parse_longdate(ISO_cre_date(volp), &hvp->cre_date); | |
| 1309 hs_parse_longdate(ISO_mod_date(volp), &hvp->mod_date); | |
| 1310 hvp->file_struct_ver = ISO_FILE_STRUCT_VER(volp); | |
| 1311 hvp->ptbl_len = ISO_PTBL_SIZE(volp); | |
| 1312 hvp->vol_set_size = (ushort_t)ISO_SET_SIZE(volp); | |
| 1313 hvp->vol_set_seq = (ushort_t)ISO_SET_SEQ(volp); | |
| 1314 #if defined(_LITTLE_ENDIAN) | |
| 1315 hvp->ptbl_lbn = ISO_PTBL_MAN_LS(volp); | |
| 1316 #else | |
| 1317 hvp->ptbl_lbn = ISO_PTBL_MAN_MS(volp); | |
| 1318 #endif | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1319 hs_copylabel(hvp, ISO_VOL_ID(volp), hs_joliet_level(volp) >= 1); |
| 0 | 1320 |
| 1321 /* | |
| 1322 * Make sure that lbn_size is a power of two and otherwise valid. | |
| 1323 */ | |
| 1324 if (hvp->lbn_size & ~(1 << hvp->lbn_shift)) { | |
| 1325 cmn_err(CE_NOTE, | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1326 "hsfs: %d-byte logical block size not supported", |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1327 hvp->lbn_size); |
| 0 | 1328 return (EINVAL); |
| 1329 } | |
| 1330 return (hs_parsedir(fsp, ISO_ROOT_DIR(volp), &hvp->root_dir, | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1331 (char *)NULL, (int *)NULL, IDE_ROOT_DIR_REC_SIZE)); |
| 0 | 1332 } |
| 1333 | |
| 1334 /* | |
| 1335 * Common code for mount and umount. | |
| 1336 * Check that the user's argument is a reasonable | |
| 1337 * thing on which to mount, and return the device number if so. | |
| 1338 */ | |
| 1339 static int | |
| 1340 hs_getmdev(struct vfs *vfsp, char *fspec, int flags, dev_t *pdev, mode_t *mode, | |
| 1341 cred_t *cr) | |
| 1342 { | |
| 1343 int error; | |
| 6734 | 1344 struct vnode *svp = NULL; |
| 1345 struct vnode *lvp = NULL; | |
| 1346 struct vnode *bvp; | |
| 0 | 1347 struct vattr vap; |
| 1348 dev_t dev; | |
| 6734 | 1349 enum uio_seg fromspace = (flags & MS_SYSSPACE) ? |
| 1350 UIO_SYSSPACE : UIO_USERSPACE; | |
| 0 | 1351 |
| 1352 /* | |
| 6734 | 1353 * Look up the device/file to be mounted. |
| 0 | 1354 */ |
| 6734 | 1355 error = lookupname(fspec, fromspace, FOLLOW, NULLVPP, &svp); |
| 0 | 1356 if (error) { |
| 6734 | 1357 if (error == ENOENT) |
| 1358 error = ENODEV; | |
| 1359 goto out; | |
| 0 | 1360 } |
| 1361 | |
| 6734 | 1362 error = vfs_get_lofi(vfsp, &lvp); |
| 1363 | |
| 1364 if (error > 0) { | |
| 1365 if (error == ENOENT) | |
| 1366 error = ENODEV; | |
| 1367 goto out; | |
| 1368 } else if (error == 0) { | |
| 1369 bvp = lvp; | |
| 1370 } else { | |
| 1371 bvp = svp; | |
| 1372 | |
| 1373 if (bvp->v_type != VBLK) { | |
| 1374 error = ENOTBLK; | |
| 1375 goto out; | |
| 1376 } | |
| 1377 | |
| 1378 if ((error = secpolicy_spec_open(cr, bvp, FREAD)) != 0) | |
| 1379 goto out; | |
| 1380 } | |
| 1381 | |
| 1382 /* | |
| 1383 * Can we read from the device/file ? | |
| 1384 */ | |
| 1385 if ((error = VOP_ACCESS(svp, VREAD, 0, cr, NULL)) != 0) | |
| 1386 goto out; | |
| 1387 | |
| 0 | 1388 vap.va_mask = AT_MODE; /* get protection mode */ |
| 6734 | 1389 (void) VOP_GETATTR(bvp, &vap, 0, CRED(), NULL); |
| 0 | 1390 *mode = vap.va_mode; |
| 1391 | |
| 6734 | 1392 dev = *pdev = bvp->v_rdev; |
| 1393 | |
| 1394 error = EBUSY; | |
| 0 | 1395 |
| 1396 /* | |
| 1397 * Ensure that this device isn't already mounted, | |
| 1398 * unless this is a REMOUNT request or we are told to suppress | |
| 1399 * mount checks. | |
| 1400 */ | |
| 1401 if ((flags & MS_NOCHECK) == 0) { | |
| 1402 if (vfs_devmounting(dev, vfsp)) | |
| 6734 | 1403 goto out; |
| 0 | 1404 if (vfs_devismounted(dev) && !(flags & MS_REMOUNT)) |
| 6734 | 1405 goto out; |
| 0 | 1406 } |
| 1407 | |
| 6734 | 1408 if (getmajor(*pdev) >= devcnt) { |
| 1409 error = ENXIO; | |
| 1410 goto out; | |
| 1411 } | |
| 1412 | |
| 1413 error = 0; | |
| 1414 out: | |
| 1415 if (svp != NULL) | |
| 1416 VN_RELE(svp); | |
| 1417 if (lvp != NULL) | |
| 1418 VN_RELE(lvp); | |
| 1419 return (error); | |
| 0 | 1420 } |
| 1421 | |
| 1422 static void | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1423 hs_copylabel(struct hs_volume *hvp, unsigned char *label, int isjoliet) |
| 0 | 1424 { |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1425 char lbuf[64]; /* hs_joliet_cp() creates 48 bytes at most */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1426 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1427 if (isjoliet) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1428 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1429 * hs_joliet_cp() will output 16..48 bytes. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1430 * We need to clear 'lbuf' to avoid junk chars past byte 15. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1431 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1432 bzero(lbuf, sizeof (lbuf)); |
|
2904
6c8662f98a22
4065963 RFE: Joliet Extension to ISO 9660 cdrom support (fix cstyle)
frankho
parents:
2903
diff
changeset
|
1433 (void) hs_joliet_cp((char *)label, lbuf, 32); |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1434 label = (unsigned char *)lbuf; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
1435 } |
| 0 | 1436 /* cdrom volid is at most 32 bytes */ |
| 1437 bcopy(label, hvp->vol_id, 32); | |
| 1438 hvp->vol_id[31] = NULL; | |
| 1439 } | |
| 1440 | |
| 1441 /* | |
| 1442 * Mount root file system. | |
| 1443 * "why" is ROOT_INIT on initial call, ROOT_REMOUNT if called to | |
| 1444 * remount the root file system, and ROOT_UNMOUNT if called to | |
| 1445 * unmount the root (e.g., as part of a system shutdown). | |
| 1446 * | |
| 1447 * XXX - this may be partially machine-dependent; it, along with the VFS_SWAPVP | |
| 1448 * operation, goes along with auto-configuration. A mechanism should be | |
| 1449 * provided by which machine-INdependent code in the kernel can say "get me the | |
| 1450 * right root file system" and "get me the right initial swap area", and have | |
| 1451 * that done in what may well be a machine-dependent fashion. | |
| 1452 * Unfortunately, it is also file-system-type dependent (NFS gets it via | |
| 1453 * bootparams calls, UFS gets it from various and sundry machine-dependent | |
| 1454 * mechanisms, as SPECFS does for swap). | |
| 1455 */ | |
| 1456 static int | |
| 1457 hsfs_mountroot(struct vfs *vfsp, enum whymountroot why) | |
| 1458 { | |
| 1459 int error; | |
| 1460 struct hsfs *fsp; | |
| 1461 struct hs_volume *fvolp; | |
| 1462 static int hsfsrootdone = 0; | |
| 1463 dev_t rootdev; | |
| 1464 mode_t mode = 0; | |
| 1465 | |
| 1466 if (why == ROOT_INIT) { | |
| 1467 if (hsfsrootdone++) | |
| 1468 return (EBUSY); | |
| 1469 rootdev = getrootdev(); | |
| 1470 if (rootdev == (dev_t)NODEV) | |
| 1471 return (ENODEV); | |
| 1472 vfsp->vfs_dev = rootdev; | |
| 1473 vfsp->vfs_flag |= VFS_RDONLY; | |
| 1474 } else if (why == ROOT_REMOUNT) { | |
| 1475 cmn_err(CE_NOTE, "hsfs_mountroot: ROOT_REMOUNT"); | |
| 1476 return (0); | |
| 1477 } else if (why == ROOT_UNMOUNT) { | |
| 1478 return (0); | |
| 1479 } | |
| 1480 error = vfs_lock(vfsp); | |
| 1481 if (error) { | |
| 1482 cmn_err(CE_NOTE, "hsfs_mountroot: couldn't get vfs_lock"); | |
| 1483 return (error); | |
| 1484 } | |
| 1485 | |
| 1486 error = hs_mountfs(vfsp, rootdev, "/", mode, 1, CRED(), 1); | |
| 1487 /* | |
| 1488 * XXX - assumes root device is not indirect, because we don't set | |
| 1489 * rootvp. Is rootvp used for anything? If so, make another arg | |
| 1490 * to mountfs. | |
| 1491 */ | |
| 1492 if (error) { | |
| 1493 vfs_unlock(vfsp); | |
| 1494 if (rootvp) { | |
| 1495 VN_RELE(rootvp); | |
| 1496 rootvp = (struct vnode *)0; | |
| 1497 } | |
| 1498 return (error); | |
| 1499 } | |
| 1500 if (why == ROOT_INIT) | |
| 1501 vfs_add((struct vnode *)0, vfsp, | |
| 1502 (vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0); | |
| 1503 vfs_unlock(vfsp); | |
| 1504 fsp = VFS_TO_HSFS(vfsp); | |
| 1505 fvolp = &fsp->hsfs_vol; | |
| 1506 #ifdef HSFS_CLKSET | |
| 1507 if (fvolp->cre_date.tv_sec == 0) { | |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1508 cmn_err(CE_NOTE, "hsfs_mountroot: cre_date.tv_sec == 0"); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1509 if (fvolp->mod_date.tv_sec == 0) { |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1510 cmn_err(CE_NOTE, |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1511 "hsfs_mountroot: mod_date.tv_sec == 0"); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1512 cmn_err(CE_NOTE, "hsfs_mountroot: clkset(-1L)"); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1513 clkset(-1L); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1514 } else { |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1515 clkset(fvolp->mod_date.tv_sec); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1516 } |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1517 } else { |
| 0 | 1518 clkset(fvolp->mod_date.tv_sec); |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
1519 } |
| 0 | 1520 #else /* HSFS_CLKSET */ |
| 1521 clkset(-1L); | |
| 1522 #endif /* HSFS_CLKSET */ | |
| 1523 return (0); | |
| 1524 } | |
| 1525 | |
| 1526 /* | |
| 1527 * hs_findvoldesc() | |
| 1528 * | |
| 1529 * Return the sector where the volume descriptor lives. This is | |
| 1530 * a fixed value for "normal" cd-rom's, but can change for | |
| 1531 * multisession cd's. | |
| 1532 * | |
| 1533 * desc_sec is the same for high-sierra and iso 9660 formats, why | |
| 5331 | 1534 * there are two different #defines used in the code for this is |
| 0 | 1535 * beyond me. These are standards, cast in concrete, right? |
| 1536 * To be general, however, this function supports passing in different | |
| 1537 * values. | |
| 1538 */ | |
| 1539 static int | |
| 1540 hs_findvoldesc(dev_t rdev, int desc_sec) | |
| 1541 { | |
| 1542 int secno; | |
| 1543 int error; | |
| 1544 int rval; /* ignored */ | |
| 1545 | |
| 1546 #ifdef CDROMREADOFFSET | |
| 1547 /* | |
| 1548 * Issue the Read Offset ioctl directly to the | |
| 1549 * device. Ignore any errors and set starting | |
| 1550 * secno to the default, otherwise add the | |
| 1551 * VOLDESC sector number to the offset. | |
| 1552 */ | |
| 1553 error = cdev_ioctl(rdev, CDROMREADOFFSET, (intptr_t)&secno, | |
| 1554 FNATIVE|FKIOCTL|FREAD, CRED(), &rval); | |
| 1555 if (error) { | |
| 1556 secno = desc_sec; | |
| 1557 } else { | |
| 1558 secno += desc_sec; | |
| 1559 } | |
| 1560 #else | |
| 1561 secno = desc_sec; | |
| 1562 #endif | |
| 1563 | |
| 1564 return (secno); | |
| 1565 } |