Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/hsfs/hsfs_vfsops.c @ 6855:18f1316f1bed
PSARC 2008/366 VSW_CANLOFI
6709611 PSARC 2008/366 VSW_CANLOFI
| author | johnlev |
|---|---|
| date | Wed, 11 Jun 2008 18:14:59 -0700 |
| parents | d16dda992d39 |
| children | 5303cd53a81b |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 4 * The contents of this file are subject to the terms of the | |
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5 * Common Development and Distribution License (the "License"). |
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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 /* | |
| 6734 | 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
| 0 | 23 * Use is subject to license terms. |
| 24 */ | |
| 25 | |
| 26 #pragma ident "%Z%%M% %I% %E% SMI" | |
| 27 | |
| 28 /* | |
| 29 * VFS operations for High Sierra filesystem | |
| 30 */ | |
| 31 | |
| 32 #include <sys/types.h> | |
| 33 #include <sys/isa_defs.h> | |
| 34 #include <sys/t_lock.h> | |
| 35 #include <sys/param.h> | |
| 36 #include <sys/systm.h> | |
| 37 #include <sys/sysmacros.h> | |
| 38 #include <sys/kmem.h> | |
| 39 #include <sys/signal.h> | |
| 40 #include <sys/user.h> | |
| 41 #include <sys/proc.h> | |
| 42 #include <sys/disp.h> | |
| 43 #include <sys/buf.h> | |
| 44 #include <sys/pathname.h> | |
| 45 #include <sys/vfs.h> | |
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46 #include <sys/vfs_opreg.h> |
| 0 | 47 #include <sys/vnode.h> |
| 48 #include <sys/file.h> | |
| 49 #include <sys/uio.h> | |
| 50 #include <sys/conf.h> | |
| 51 #include <sys/policy.h> | |
| 52 | |
| 53 #include <vm/page.h> | |
| 54 | |
| 55 #include <sys/fs/snode.h> | |
| 56 #include <sys/fs/hsfs_spec.h> | |
| 57 #include <sys/fs/hsfs_isospec.h> | |
| 58 #include <sys/fs/hsfs_node.h> | |
| 59 #include <sys/fs/hsfs_impl.h> | |
| 60 #include <sys/fs/hsfs_susp.h> | |
| 61 #include <sys/fs/hsfs_rrip.h> | |
| 62 | |
| 63 #include <sys/statvfs.h> | |
| 64 #include <sys/mount.h> | |
| 65 #include <sys/mntent.h> | |
| 66 #include <sys/swap.h> | |
| 67 #include <sys/errno.h> | |
| 68 #include <sys/debug.h> | |
| 69 #include "fs/fs_subr.h" | |
| 70 #include <sys/cmn_err.h> | |
| 71 #include <sys/bootconf.h> | |
| 72 | |
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73 #include <sys/sdt.h> |
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74 |
| 0 | 75 /* |
| 76 * These are needed for the CDROMREADOFFSET Code | |
| 77 */ | |
| 78 #include <sys/cdio.h> | |
| 79 #include <sys/sunddi.h> | |
| 80 | |
| 81 #define HSFS_CLKSET | |
| 82 | |
| 83 #include <sys/modctl.h> | |
| 84 | |
| 85 /* | |
| 86 * Options for mount. | |
| 87 */ | |
| 88 #define HOPT_GLOBAL MNTOPT_GLOBAL | |
| 89 #define HOPT_NOGLOBAL MNTOPT_NOGLOBAL | |
| 90 #define HOPT_MAPLCASE "maplcase" | |
| 91 #define HOPT_NOMAPLCASE "nomaplcase" | |
| 92 #define HOPT_NOTRAILDOT "notraildot" | |
| 93 #define HOPT_TRAILDOT "traildot" | |
| 94 #define HOPT_NRR "nrr" | |
| 95 #define HOPT_RR "rr" | |
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96 #define HOPT_JOLIET "joliet" |
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97 #define HOPT_NOJOLIET "nojoliet" |
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98 #define HOPT_JOLIETLONG "jolietlong" |
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99 #define HOPT_VERS2 "vers2" |
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100 #define HOPT_NOVERS2 "novers2" |
| 0 | 101 #define HOPT_RO MNTOPT_RO |
| 102 | |
| 103 static char *global_cancel[] = { HOPT_NOGLOBAL, NULL }; | |
| 104 static char *noglobal_cancel[] = { HOPT_GLOBAL, NULL }; | |
| 105 static char *mapl_cancel[] = { HOPT_NOMAPLCASE, NULL }; | |
| 106 static char *nomapl_cancel[] = { HOPT_MAPLCASE, NULL }; | |
| 107 static char *ro_cancel[] = { MNTOPT_RW, NULL }; | |
| 108 static char *rr_cancel[] = { HOPT_NRR, NULL }; | |
| 109 static char *nrr_cancel[] = { HOPT_RR, NULL }; | |
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110 static char *joliet_cancel[] = { HOPT_NOJOLIET, NULL }; |
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111 static char *nojoliet_cancel[] = { HOPT_JOLIET, NULL }; |
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112 static char *vers2_cancel[] = { HOPT_NOVERS2, NULL }; |
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113 static char *novers2_cancel[] = { HOPT_VERS2, NULL }; |
| 0 | 114 static char *trail_cancel[] = { HOPT_NOTRAILDOT, NULL }; |
| 115 static char *notrail_cancel[] = { HOPT_TRAILDOT, NULL }; | |
| 116 | |
| 117 static mntopt_t hsfs_options[] = { | |
| 118 { HOPT_GLOBAL, global_cancel, NULL, 0, NULL }, | |
| 119 { HOPT_NOGLOBAL, noglobal_cancel, NULL, MO_DEFAULT, NULL }, | |
| 120 { HOPT_MAPLCASE, mapl_cancel, NULL, MO_DEFAULT, NULL }, | |
| 121 { HOPT_NOMAPLCASE, nomapl_cancel, NULL, 0, NULL }, | |
| 122 { HOPT_RO, ro_cancel, NULL, MO_DEFAULT, NULL }, | |
| 123 { HOPT_RR, rr_cancel, NULL, MO_DEFAULT, NULL }, | |
| 124 { HOPT_NRR, nrr_cancel, NULL, 0, NULL }, | |
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125 { HOPT_JOLIET, joliet_cancel, NULL, 0, NULL }, |
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126 { HOPT_NOJOLIET, nojoliet_cancel, NULL, 0, NULL }, |
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127 { HOPT_JOLIETLONG, NULL, NULL, 0, NULL }, |
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128 { HOPT_VERS2, vers2_cancel, NULL, 0, NULL }, |
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129 { HOPT_NOVERS2, novers2_cancel, NULL, 0, NULL }, |
| 0 | 130 { HOPT_TRAILDOT, trail_cancel, NULL, MO_DEFAULT, NULL }, |
| 131 { HOPT_NOTRAILDOT, notrail_cancel, NULL, 0, NULL }, | |
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132 { "sector", NULL, "0", MO_HASVALUE, NULL}, |
| 0 | 133 }; |
| 134 | |
| 135 static mntopts_t hsfs_proto_opttbl = { | |
| 136 sizeof (hsfs_options) / sizeof (mntopt_t), | |
| 137 hsfs_options | |
| 138 }; | |
| 139 | |
| 5312 | 140 /* |
| 141 * Indicates whether to enable the I/O scheduling and readahead logic | |
| 142 * 1 - Enable, 0 - Do not Enable. | |
| 143 * Debugging purposes. | |
| 144 */ | |
| 145 int do_schedio = 1; | |
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146 static int hsfsfstype; |
| 0 | 147 static int hsfsinit(int, char *); |
| 148 | |
| 149 static vfsdef_t vfw = { | |
| 150 VFSDEF_VERSION, | |
| 151 "hsfs", | |
| 152 hsfsinit, | |
| 6855 | 153 /* We don't suppport remounting */ |
| 154 VSW_HASPROTO|VSW_STATS|VSW_CANLOFI, | |
| 0 | 155 &hsfs_proto_opttbl |
| 156 }; | |
| 157 | |
| 158 static struct modlfs modlfs = { | |
| 159 &mod_fsops, "filesystem for HSFS", &vfw | |
| 160 }; | |
| 161 | |
| 162 static struct modlinkage modlinkage = { | |
| 163 MODREV_1, (void *)&modlfs, NULL | |
| 164 }; | |
| 165 | |
| 166 char _depends_on[] = "fs/specfs"; | |
| 167 | |
| 5312 | 168 extern void hsched_init_caches(void); |
| 169 extern void hsched_fini_caches(void); | |
| 170 | |
| 171 | |
| 0 | 172 int |
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173 _init(void) |
| 0 | 174 { |
| 175 return (mod_install(&modlinkage)); | |
| 176 } | |
| 177 | |
| 178 int | |
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179 _fini(void) |
| 0 | 180 { |
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181 int error; |
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182 |
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183 error = mod_remove(&modlinkage); |
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184 |
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185 DTRACE_PROBE1(mod_remove, int, error); |
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186 |
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187 if (error) |
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188 return (error); |
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189 |
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190 mutex_destroy(&hs_mounttab_lock); |
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191 |
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192 /* |
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193 * Tear down the operations vectors |
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194 */ |
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195 (void) vfs_freevfsops_by_type(hsfsfstype); |
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196 vn_freevnodeops(hsfs_vnodeops); |
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197 |
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198 hs_fini_hsnode_cache(); |
| 5312 | 199 hsched_fini_caches(); |
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200 return (0); |
| 0 | 201 } |
| 202 | |
| 203 int | |
| 204 _info(struct modinfo *modinfop) | |
| 205 { | |
| 206 return (mod_info(&modlinkage, modinfop)); | |
| 207 } | |
| 208 | |
| 209 #define BDEVFLAG(dev) ((devopsp[getmajor(dev)])->devo_cb_ops->cb_flag) | |
| 210 | |
| 211 kmutex_t hs_mounttab_lock; | |
| 212 struct hsfs *hs_mounttab = NULL; | |
| 213 | |
| 214 /* default mode, uid, gid */ | |
| 215 mode_t hsfs_default_mode = 0555; | |
| 216 uid_t hsfs_default_uid = 0; | |
| 217 gid_t hsfs_default_gid = 3; | |
| 218 | |
| 5312 | 219 extern void hsched_init(struct hsfs *fsp, int fsid, |
| 220 struct modlinkage *modlinkage); | |
| 221 extern void hsched_fini(struct hsfs_queue *hqueue); | |
| 222 extern void hsfs_init_kstats(struct hsfs *fsp, int fsid); | |
| 223 extern void hsfs_fini_kstats(struct hsfs *fsp); | |
| 224 | |
| 0 | 225 static int hsfs_mount(struct vfs *vfsp, struct vnode *mvp, |
| 226 struct mounta *uap, struct cred *cr); | |
| 227 static int hsfs_unmount(struct vfs *vfsp, int, struct cred *cr); | |
| 228 static int hsfs_root(struct vfs *vfsp, struct vnode **vpp); | |
| 229 static int hsfs_statvfs(struct vfs *vfsp, struct statvfs64 *sbp); | |
| 230 static int hsfs_vget(struct vfs *vfsp, struct vnode **vpp, struct fid *fidp); | |
| 231 static int hsfs_mountroot(struct vfs *, enum whymountroot); | |
| 232 | |
| 233 static int hs_mountfs(struct vfs *vfsp, dev_t dev, char *path, | |
| 234 mode_t mode, int flags, struct cred *cr, int isroot); | |
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235 static int hs_getrootvp(struct vfs *vfsp, struct hsfs *fsp, size_t pathsize); |
| 0 | 236 static int hs_findhsvol(struct hsfs *fsp, struct vnode *vp, |
| 237 struct hs_volume *hvp); | |
| 238 static int hs_parsehsvol(struct hsfs *fsp, uchar_t *volp, | |
| 239 struct hs_volume *hvp); | |
| 240 static int hs_findisovol(struct hsfs *fsp, struct vnode *vp, | |
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241 struct hs_volume *hvp, |
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242 struct hs_volume *svp, |
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243 struct hs_volume *jvp); |
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244 static int hs_joliet_level(uchar_t *volp); |
| 0 | 245 static int hs_parseisovol(struct hsfs *fsp, uchar_t *volp, |
| 246 struct hs_volume *hvp); | |
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247 static void hs_copylabel(struct hs_volume *, unsigned char *, int); |
| 0 | 248 static int hs_getmdev(struct vfs *, char *fspec, int flags, dev_t *pdev, |
| 249 mode_t *mode, cred_t *cr); | |
| 250 static int hs_findvoldesc(dev_t rdev, int desc_sec); | |
| 251 | |
| 252 static int | |
| 253 hsfsinit(int fstype, char *name) | |
| 254 { | |
| 255 static const fs_operation_def_t hsfs_vfsops_template[] = { | |
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256 VFSNAME_MOUNT, { .vfs_mount = hsfs_mount }, |
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257 VFSNAME_UNMOUNT, { .vfs_unmount = hsfs_unmount }, |
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258 VFSNAME_ROOT, { .vfs_root = hsfs_root }, |
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259 VFSNAME_STATVFS, { .vfs_statvfs = hsfs_statvfs }, |
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260 VFSNAME_VGET, { .vfs_vget = hsfs_vget }, |
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261 VFSNAME_MOUNTROOT, { .vfs_mountroot = hsfs_mountroot }, |
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262 NULL, NULL |
| 0 | 263 }; |
| 264 int error; | |
| 265 | |
| 266 error = vfs_setfsops(fstype, hsfs_vfsops_template, NULL); | |
| 267 if (error != 0) { | |
| 268 cmn_err(CE_WARN, "hsfsinit: bad vfs ops template"); | |
| 269 return (error); | |
| 270 } | |
| 271 | |
| 272 error = vn_make_ops(name, hsfs_vnodeops_template, &hsfs_vnodeops); | |
| 273 if (error != 0) { | |
| 274 (void) vfs_freevfsops_by_type(fstype); | |
| 275 cmn_err(CE_WARN, "hsfsinit: bad vnode ops template"); | |
| 276 return (error); | |
| 277 } | |
| 278 | |
| 279 hsfsfstype = fstype; | |
| 280 mutex_init(&hs_mounttab_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 281 hs_init_hsnode_cache(); | |
| 5312 | 282 hsched_init_caches(); |
| 0 | 283 return (0); |
| 284 } | |
| 285 | |
| 286 /*ARGSUSED*/ | |
| 287 static int | |
| 288 hsfs_mount(struct vfs *vfsp, struct vnode *mvp, | |
| 289 struct mounta *uap, struct cred *cr) | |
| 290 { | |
| 291 int vnode_busy; | |
| 292 dev_t dev; | |
| 293 struct pathname dpn; | |
| 294 int error; | |
| 295 mode_t mode; | |
| 296 int flags; /* this will hold the mount specific data */ | |
| 297 | |
| 298 if ((error = secpolicy_fs_mount(cr, mvp, vfsp)) != 0) | |
| 299 return (error); | |
| 300 | |
| 301 if (mvp->v_type != VDIR) | |
| 302 return (ENOTDIR); | |
| 303 | |
| 304 /* mount option must be read only, else mount will be rejected */ | |
| 305 if (!(uap->flags & MS_RDONLY)) | |
| 306 return (EROFS); | |
| 307 | |
| 308 /* | |
| 309 * We already told the framework that we don't support remounting. | |
| 310 */ | |
| 311 ASSERT(!(uap->flags & MS_REMOUNT)); | |
| 312 | |
| 313 mutex_enter(&mvp->v_lock); | |
| 314 vnode_busy = (mvp->v_count != 1) || (mvp->v_flag & VROOT); | |
| 315 mutex_exit(&mvp->v_lock); | |
| 316 | |
| 317 if ((uap->flags & MS_OVERLAY) == 0 && vnode_busy) { | |
| 318 return (EBUSY); | |
| 319 } | |
| 320 | |
| 321 /* | |
| 322 * Check for the options that actually affect things | |
| 323 * at our level. | |
| 324 */ | |
| 325 flags = 0; | |
| 326 if (vfs_optionisset(vfsp, HOPT_NOMAPLCASE, NULL)) | |
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327 flags |= HSFSMNT_NOMAPLCASE; |
| 0 | 328 if (vfs_optionisset(vfsp, HOPT_NOTRAILDOT, NULL)) |
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329 flags |= HSFSMNT_NOTRAILDOT; |
| 0 | 330 if (vfs_optionisset(vfsp, HOPT_NRR, NULL)) |
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331 flags |= HSFSMNT_NORRIP; |
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332 if (vfs_optionisset(vfsp, HOPT_NOJOLIET, NULL)) |
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333 flags |= HSFSMNT_NOJOLIET; |
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334 if (vfs_optionisset(vfsp, HOPT_JOLIETLONG, NULL)) |
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335 flags |= HSFSMNT_JOLIETLONG; |
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336 if (vfs_optionisset(vfsp, HOPT_NOVERS2, NULL)) |
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337 flags |= HSFSMNT_NOVERS2; |
| 0 | 338 |
| 339 error = pn_get(uap->dir, (uap->flags & MS_SYSSPACE) ? | |
| 340 UIO_SYSSPACE : UIO_USERSPACE, &dpn); | |
| 341 if (error) | |
| 342 return (error); | |
| 343 | |
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344 error = hs_getmdev(vfsp, uap->spec, uap->flags, &dev, &mode, cr); |
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345 if (error != 0) { |
| 0 | 346 pn_free(&dpn); |
| 347 return (error); | |
| 348 } | |
| 349 | |
| 350 /* | |
| 351 * If the device is a tape, return error | |
| 352 */ | |
| 353 if ((BDEVFLAG(dev) & D_TAPE) == D_TAPE) { | |
| 354 pn_free(&dpn); | |
| 355 return (ENOTBLK); | |
| 356 } | |
| 357 | |
| 358 /* | |
| 359 * Mount the filesystem. | |
| 360 */ | |
| 361 error = hs_mountfs(vfsp, dev, dpn.pn_path, mode, flags, cr, 0); | |
| 362 pn_free(&dpn); | |
| 363 return (error); | |
| 364 } | |
| 365 | |
| 366 /*ARGSUSED*/ | |
| 367 static int | |
| 368 hsfs_unmount( | |
| 369 struct vfs *vfsp, | |
| 370 int flag, | |
| 371 struct cred *cr) | |
| 372 { | |
| 373 struct hsfs **tspp; | |
| 374 struct hsfs *fsp; | |
| 375 | |
| 376 if (secpolicy_fs_unmount(cr, vfsp) != 0) | |
| 377 return (EPERM); | |
| 378 | |
| 379 /* | |
| 380 * forced unmount is not supported by this file system | |
| 381 * and thus, ENOTSUP is being returned. | |
| 382 */ | |
| 383 if (flag & MS_FORCE) | |
| 384 return (ENOTSUP); | |
| 385 | |
| 386 fsp = VFS_TO_HSFS(vfsp); | |
| 387 | |
| 388 if (fsp->hsfs_rootvp->v_count != 1) | |
| 389 return (EBUSY); | |
| 390 | |
| 391 /* destroy all old pages and hsnodes for this vfs */ | |
| 392 if (hs_synchash(vfsp)) | |
| 393 return (EBUSY); | |
| 394 | |
| 395 mutex_enter(&hs_mounttab_lock); | |
| 396 for (tspp = &hs_mounttab; *tspp != NULL; tspp = &(*tspp)->hsfs_next) { | |
| 397 if (*tspp == fsp) | |
| 398 break; | |
| 399 } | |
| 400 if (*tspp == NULL) { | |
| 401 mutex_exit(&hs_mounttab_lock); | |
| 402 panic("hsfs_unmount: vfs not mounted?"); | |
| 403 /*NOTREACHED*/ | |
| 404 } | |
| 405 | |
| 406 *tspp = fsp->hsfs_next; | |
| 407 | |
| 408 mutex_exit(&hs_mounttab_lock); | |
| 409 | |
| 5312 | 410 hsfs_fini_kstats(fsp); |
| 5331 | 411 (void) VOP_CLOSE(fsp->hsfs_devvp, FREAD, 1, (offset_t)0, cr, NULL); |
| 0 | 412 VN_RELE(fsp->hsfs_devvp); |
| 413 /* free path table space */ | |
| 414 if (fsp->hsfs_ptbl != NULL) | |
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415 kmem_free(fsp->hsfs_ptbl, (size_t)fsp->hsfs_vol.ptbl_len); |
| 0 | 416 /* free path table index table */ |
| 417 if (fsp->hsfs_ptbl_idx != NULL) | |
| 418 kmem_free(fsp->hsfs_ptbl_idx, (size_t) | |
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419 (fsp->hsfs_ptbl_idx_size * sizeof (struct ptable_idx))); |
| 0 | 420 |
| 421 /* free "mounted on" pathame */ | |
| 422 if (fsp->hsfs_fsmnt != NULL) | |
| 423 kmem_free(fsp->hsfs_fsmnt, strlen(fsp->hsfs_fsmnt) + 1); | |
| 424 | |
| 5312 | 425 hsched_fini(fsp->hqueue); |
| 426 kmem_free(fsp->hqueue, sizeof (struct hsfs_queue)); | |
| 427 | |
| 0 | 428 mutex_destroy(&fsp->hsfs_free_lock); |
| 429 rw_destroy(&fsp->hsfs_hash_lock); | |
| 430 | |
| 431 kmem_free(fsp, sizeof (*fsp)); | |
| 432 return (0); | |
| 433 } | |
| 434 | |
| 435 /*ARGSUSED*/ | |
| 436 static int | |
| 437 hsfs_root(struct vfs *vfsp, struct vnode **vpp) | |
| 438 { | |
| 439 *vpp = (VFS_TO_HSFS(vfsp))->hsfs_rootvp; | |
| 440 VN_HOLD(*vpp); | |
| 441 return (0); | |
| 442 } | |
| 443 | |
| 444 /*ARGSUSED*/ | |
| 445 static int | |
| 446 hsfs_statvfs(struct vfs *vfsp, struct statvfs64 *sbp) | |
| 447 { | |
| 448 struct hsfs *fsp; | |
| 449 dev32_t d32; | |
| 450 | |
| 451 fsp = VFS_TO_HSFS(vfsp); | |
| 452 if (fsp->hsfs_magic != HSFS_MAGIC) | |
| 453 return (EINVAL); | |
| 454 bzero(sbp, sizeof (*sbp)); | |
| 455 sbp->f_bsize = vfsp->vfs_bsize; | |
| 456 sbp->f_frsize = sbp->f_bsize; /* no fragment, same as block size */ | |
| 457 sbp->f_blocks = (fsblkcnt64_t)fsp->hsfs_vol.vol_size; | |
| 458 | |
| 459 sbp->f_bfree = (fsblkcnt64_t)0; | |
| 460 sbp->f_bavail = (fsblkcnt64_t)0; | |
| 461 sbp->f_files = (fsfilcnt64_t)-1; | |
| 462 sbp->f_ffree = (fsfilcnt64_t)0; | |
| 463 sbp->f_favail = (fsfilcnt64_t)0; | |
| 464 (void) cmpldev(&d32, vfsp->vfs_dev); | |
| 465 sbp->f_fsid = d32; | |
| 466 (void) strcpy(sbp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name); | |
| 467 sbp->f_flag = vf_to_stf(vfsp->vfs_flag); | |
| 468 sbp->f_namemax = fsp->hsfs_namemax; | |
| 469 (void) strcpy(sbp->f_fstr, fsp->hsfs_vol.vol_id); | |
| 470 | |
| 471 return (0); | |
| 472 } | |
| 473 | |
| 474 /* | |
| 475 * Previously nodeid was declared as uint32_t. This has been changed | |
| 476 * to conform better with the ISO9660 standard. The standard states that | |
| 477 * a LBN can be a 32 bit number, as the MAKE_NODEID macro shifts this | |
| 478 * LBN 11 places left (LBN_TO_BYTE) and then shifts the result 5 right | |
| 479 * (divide by 32) we are left with the potential of an overflow if | |
| 480 * confined to a 32 bit value. | |
| 481 */ | |
| 482 | |
| 483 static int | |
| 484 hsfs_vget(struct vfs *vfsp, struct vnode **vpp, struct fid *fidp) | |
| 485 { | |
| 486 struct hsfid *fid; | |
| 487 struct hsfs *fsp; | |
| 488 ino64_t nodeid; | |
| 489 int error; | |
| 490 | |
| 491 fsp = (struct hsfs *)VFS_TO_HSFS(vfsp); | |
| 492 fid = (struct hsfid *)fidp; | |
| 493 | |
| 494 /* | |
| 495 * Look for vnode on hashlist. | |
| 496 * If found, it's now active and the refcnt was incremented. | |
| 497 */ | |
| 498 | |
| 499 rw_enter(&fsp->hsfs_hash_lock, RW_READER); | |
| 500 | |
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501 nodeid = fid->hf_ino; |
| 0 | 502 |
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503 if ((*vpp = hs_findhash(nodeid, fid->hf_dir_lbn, |
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504 (uint_t)fid->hf_dir_off, vfsp)) == NULL) { |
| 0 | 505 /* |
| 506 * Not in cache, so we need to remake it. | |
| 507 * hs_remakenode() will read the directory entry | |
| 508 * and then check again to see if anyone else has | |
| 509 * put it in the cache. | |
| 510 */ | |
| 511 rw_exit(&fsp->hsfs_hash_lock); | |
| 512 error = hs_remakenode(fid->hf_dir_lbn, (uint_t)fid->hf_dir_off, | |
| 513 vfsp, vpp); | |
| 514 return (error); | |
| 515 } | |
| 516 rw_exit(&fsp->hsfs_hash_lock); | |
| 517 return (0); | |
| 518 } | |
| 519 | |
| 520 | |
| 521 #define CHECKSUM_SIZE (64 * 1024) | |
| 522 | |
| 523 /* | |
| 524 * Compute a CD-ROM fsid by checksumming the first 64K of data on the CD | |
| 525 * We use the 'fsp' argument to determine the location of the root | |
| 526 * directory entry, and we start reading from there. | |
| 527 */ | |
| 528 static int | |
| 529 compute_cdrom_id(struct hsfs *fsp, vnode_t *devvp) | |
| 530 { | |
| 531 uint_t secno; | |
| 532 struct hs_volume *hsvp = &fsp->hsfs_vol; | |
| 533 struct buf *bp; | |
| 534 int error; | |
| 535 int fsid; | |
| 536 | |
| 537 secno = hsvp->root_dir.ext_lbn >> hsvp->lbn_secshift; | |
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538 bp = bread(devvp->v_rdev, secno * 4, CHECKSUM_SIZE); |
| 0 | 539 error = geterror(bp); |
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540 |
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541 /* |
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542 * An error on read or a partial read means we asked |
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543 * for a nonexistant/corrupted piece of the device |
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544 * (including past-the-end of the media). Don't |
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545 * try to use the checksumming method then. |
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546 */ |
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547 if (!error && bp->b_bcount == CHECKSUM_SIZE) { |
| 0 | 548 int *ibuf = (int *)bp->b_un.b_addr; |
| 549 int i; | |
| 550 | |
| 551 fsid = 0; | |
| 552 | |
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553 for (i = 0; i < CHECKSUM_SIZE / sizeof (int); i++) |
| 0 | 554 fsid ^= ibuf[ i ]; |
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555 } else { |
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556 /* |
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557 * Fallback - use creation date |
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558 */ |
| 0 | 559 fsid = hsvp->cre_date.tv_sec; |
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560 } |
| 0 | 561 |
| 562 brelse(bp); | |
| 563 | |
| 564 return (fsid); | |
| 565 } | |
| 566 | |
| 567 | |
| 568 /*ARGSUSED*/ | |
| 569 static int | |
| 570 hs_mountfs( | |
| 571 struct vfs *vfsp, | |
| 572 dev_t dev, | |
| 573 char *path, | |
| 574 mode_t mode, | |
| 575 int mount_flags, | |
| 576 struct cred *cr, | |
| 577 int isroot) | |
| 578 { | |
| 579 struct vnode *devvp; | |
| 580 struct hsfs *tsp; | |
| 581 struct hsfs *fsp = NULL; | |
| 582 struct vattr vap; | |
| 583 struct hsnode *hp; | |
| 584 int error; | |
| 585 struct timeval tv; | |
| 586 int fsid; | |
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587 int use_rrip; |
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588 int use_vers2; |
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589 int use_joliet; |
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590 int has_rrip = 0; |
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591 int has_vers2 = 0; |
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592 int has_joliet = 0; |
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593 int force_rrip_off; |
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594 int force_vers2_off; |
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595 int force_joliet_off; |
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596 size_t pathbufsz = strlen(path) + 1; |
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597 int redo_rootvp; |
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598 |
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599 struct hs_volume *svp; /* Supplemental VD for ISO-9660:1999 */ |
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600 struct hs_volume *jvp; /* Joliet VD */ |
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601 |
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602 /* |
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603 * The rules for which extension will be used are: |
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604 * 1. No specific mount options given: |
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605 * - use rrip if available |
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606 * - use ISO9660:1999 if available |
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607 * - use joliet if available. |
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608 * 2. rrip/ISO9660:1999/joliet explicitly disabled via mount option: |
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609 * - use next "lower" extension |
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610 * 3. joliet/ISO9660:1999/rrip explicitly requested via mount option: |
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611 * - disable rrip support even if available |
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612 * - disable IOS9660:1999 support even if available |
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613 * |
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614 * We need to adjust these flags as we discover the extensions |
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615 * present. See below. These are just the starting values. |
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616 */ |
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617 use_rrip = (mount_flags & HSFSMNT_NORRIP) == 0; |
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618 use_vers2 = (mount_flags & HSFSMNT_NOVERS2) == 0; |
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619 use_joliet = (mount_flags & HSFSMNT_NOJOLIET) == 0; |
| 0 | 620 |
| 621 /* | |
| 622 * Open the device | |
| 623 */ | |
| 624 devvp = makespecvp(dev, VBLK); | |
| 625 ASSERT(devvp != 0); | |
| 626 | |
| 627 /* | |
| 628 * Open the target device (file) for read only. | |
| 629 */ | |
| 5331 | 630 if (error = VOP_OPEN(&devvp, FREAD, cr, NULL)) { |
| 0 | 631 VN_RELE(devvp); |
| 632 return (error); | |
| 633 } | |
| 634 | |
| 635 /* | |
| 636 * Refuse to go any further if this | |
| 637 * device is being used for swapping | |
| 638 */ | |
| 639 if (IS_SWAPVP(common_specvp(devvp))) { | |
| 640 error = EBUSY; | |
| 641 goto cleanup; | |
| 642 } | |
| 643 | |
| 644 vap.va_mask = AT_SIZE; | |
| 5331 | 645 if ((error = VOP_GETATTR(devvp, &vap, ATTR_COMM, cr, NULL)) != 0) { |
| 0 | 646 cmn_err(CE_NOTE, "Cannot get attributes of the CD-ROM driver"); |
| 647 goto cleanup; | |
| 648 } | |
| 649 | |
| 650 /* | |
| 651 * Make sure we have a nonzero size partition. | |
| 652 * The current version of the SD driver will *not* fail the open | |
| 653 * of such a partition so we have to check for it here. | |
| 654 */ | |
| 655 if (vap.va_size == 0) { | |
| 656 error = ENXIO; | |
| 657 goto cleanup; | |
| 658 } | |
| 659 | |
| 660 /* | |
| 661 * Init a new hsfs structure. | |
| 662 */ | |
| 663 fsp = kmem_zalloc(sizeof (*fsp), KM_SLEEP); | |
|
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|
664 svp = kmem_zalloc(sizeof (*svp), KM_SLEEP); |
|
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|
665 jvp = kmem_zalloc(sizeof (*jvp), KM_SLEEP); |
| 0 | 666 |
| 667 /* hardwire perms, uid, gid */ | |
| 668 fsp->hsfs_vol.vol_uid = hsfs_default_uid; | |
| 669 fsp->hsfs_vol.vol_gid = hsfs_default_gid; | |
| 670 fsp->hsfs_vol.vol_prot = hsfs_default_mode; | |
|
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671 svp->vol_uid = hsfs_default_uid; |
|
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|
672 svp->vol_gid = hsfs_default_gid; |
|
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|
673 svp->vol_prot = hsfs_default_mode; |
|
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|
674 jvp->vol_uid = hsfs_default_uid; |
|
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|
675 jvp->vol_gid = hsfs_default_gid; |
|
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|
676 jvp->vol_prot = hsfs_default_mode; |
| 0 | 677 |
| 678 /* | |
| 679 * Look for a Standard File Structure Volume Descriptor, | |
| 680 * of which there must be at least one. | |
| 681 * If found, check for volume size consistency. | |
|
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|
682 * |
|
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|
683 * If svp->lbn_size is != 0, we did find a ISO-9660:1999 SVD |
|
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684 * If jvp->lbn_size is != 0, we did find a Joliet SVD. |
| 0 | 685 */ |
|
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686 fsp->hsfs_namemax = ISO_FILE_NAMELEN; |
|
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|
687 fsp->hsfs_namelen = ISO_FILE_NAMELEN; |
|
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|
688 error = hs_findisovol(fsp, devvp, &fsp->hsfs_vol, svp, jvp); |
|
1025
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
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|
689 if (error == EINVAL) /* no iso 9660 - try high sierra ... */ |
|
1aef26bcfa0e
6300064 hsfs_spec.h has developed a southern drawl.
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diff
changeset
|
690 error = hs_findhsvol(fsp, devvp, &fsp->hsfs_vol); |
| 0 | 691 |
| 692 if (error) | |
| 693 goto cleanup; | |
| 694 | |
|
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|
695 DTRACE_PROBE4(findvol, |
|
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|
696 struct hsfs *, fsp, |
|
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697 struct hs_volume *, &fsp->hsfs_vol, |
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698 struct hs_volume *, svp, |
|
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|
699 struct hs_volume *, jvp); |
|
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|
700 |
| 0 | 701 /* |
| 702 * Generate a file system ID from the CD-ROM, | |
| 703 * and check it for uniqueness. | |
| 704 * | |
| 705 * What we are aiming for is some chance of integrity | |
| 706 * across disk change. That is, if a client has an fhandle, | |
| 707 * it will be valid as long as the same disk is mounted. | |
| 708 */ | |
| 709 fsid = compute_cdrom_id(fsp, devvp); | |
| 710 | |
| 711 mutex_enter(&hs_mounttab_lock); | |
| 712 | |
| 713 if (fsid == 0 || fsid == -1) { | |
| 714 uniqtime(&tv); | |
| 715 fsid = tv.tv_sec; | |
| 716 } else /* make sure that the fsid is unique */ | |
| 717 for (tsp = hs_mounttab; tsp != NULL; tsp = tsp->hsfs_next) { | |
| 718 if (fsid == tsp->hsfs_vfs->vfs_fsid.val[0]) { | |
| 719 uniqtime(&tv); | |
| 720 fsid = tv.tv_sec; | |
| 721 break; | |
| 722 } | |
| 723 } | |
| 724 | |
| 725 fsp->hsfs_next = hs_mounttab; | |
| 726 hs_mounttab = fsp; | |
| 727 | |
| 728 fsp->hsfs_devvp = devvp; | |
| 729 fsp->hsfs_vfs = vfsp; | |
|
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|
730 fsp->hsfs_fsmnt = kmem_alloc(pathbufsz, KM_SLEEP); |
|
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changeset
|
731 (void) strlcpy(fsp->hsfs_fsmnt, path, pathbufsz); |
| 0 | 732 |
| 733 mutex_init(&fsp->hsfs_free_lock, NULL, MUTEX_DEFAULT, NULL); | |
| 734 rw_init(&fsp->hsfs_hash_lock, NULL, RW_DEFAULT, NULL); | |
| 735 | |
| 736 vfsp->vfs_data = (caddr_t)fsp; | |
| 737 vfsp->vfs_dev = dev; | |
| 738 vfsp->vfs_fstype = hsfsfstype; | |
| 739 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; /* %% */ | |
| 740 vfsp->vfs_fsid.val[0] = fsid; | |
| 741 vfsp->vfs_fsid.val[1] = hsfsfstype; | |
| 742 | |
|
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|
743 if (!hs_getrootvp(vfsp, fsp, pathbufsz)) { |
|
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|
744 DTRACE_PROBE1(rootvp__failed, struct hsfs *, fsp); |
|
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|
745 error = EINVAL; |
|
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diff
changeset
|
746 goto cleanup; |
|
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changeset
|
747 } |
|
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changeset
|
748 DTRACE_PROBE1(rootvp, struct hsfs *, fsp); |
|
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changeset
|
749 |
|
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changeset
|
750 /* |
|
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parents:
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diff
changeset
|
751 * Attempt to discover a RR extension. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
752 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
753 if (use_rrip) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
754 hp = VTOH(fsp->hsfs_rootvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
755 hs_check_root_dirent(fsp->hsfs_rootvp, &(hp->hs_dirent)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
756 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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parents:
1488
diff
changeset
|
757 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
758 has_rrip = IS_RRIP_IMPLEMENTED(fsp); |
|
8188e64c9073
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diff
changeset
|
759 has_vers2 = (svp->lbn_size != 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
760 has_joliet = (jvp->lbn_size != 0); |
|
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
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parents:
1488
diff
changeset
|
762 DTRACE_PROBE4(voltype__suggested, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
763 int, use_rrip, int, use_vers2, int, use_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(voltype__actual, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
766 int, has_rrip, int, has_vers2, int, has_joliet); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
767 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
768 DTRACE_PROBE4(findvol, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
769 struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
770 struct hs_volume *, &fsp->hsfs_vol, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
771 struct hs_volume *, svp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
772 struct hs_volume *, jvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
773 |
|
8188e64c9073
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frankho
parents:
1488
diff
changeset
|
774 force_rrip_off = !use_rrip || |
|
8188e64c9073
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frankho
parents:
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diff
changeset
|
775 (vfs_optionisset(vfsp, HOPT_JOLIET, NULL) && has_joliet) || |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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1488
diff
changeset
|
776 (vfs_optionisset(vfsp, HOPT_VERS2, NULL) && has_vers2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
777 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
778 force_vers2_off = !use_vers2 || |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
779 (vfs_optionisset(vfsp, HOPT_JOLIET, NULL) && has_joliet); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
780 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
781 force_joliet_off = !use_joliet; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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1488
diff
changeset
|
782 |
|
8188e64c9073
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frankho
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1488
diff
changeset
|
783 DTRACE_PROBE4(voltype__force_off, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
784 int, force_rrip_off, int, force_vers2_off, int, force_joliet_off); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
785 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
786 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
787 * At the moment, we have references of all three possible |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
788 * extensions (RR, ISO9660:1999/v2 and Joliet) if present. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
789 * |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
790 * The "active" volume descriptor is RRIP (or ISO9660:1988). |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
791 * We now switch to the user-requested one. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
792 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
793 redo_rootvp = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
794 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
795 if (force_rrip_off || !has_rrip) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
796 if (has_vers2 && !force_vers2_off) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
797 VN_RELE(fsp->hsfs_rootvp); |
|
8188e64c9073
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frankho
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1488
diff
changeset
|
798 bcopy(svp, &fsp->hsfs_vol, sizeof (struct hs_volume)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
799 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO_V2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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1488
diff
changeset
|
800 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
801 redo_rootvp = 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
802 has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
803 } else if (has_joliet && !force_joliet_off) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
804 VN_RELE(fsp->hsfs_rootvp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
805 bcopy(jvp, &fsp->hsfs_vol, sizeof (struct hs_volume)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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1488
diff
changeset
|
806 fsp->hsfs_vol_type = HS_VOL_TYPE_JOLIET; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
807 vfsp->vfs_bsize = fsp->hsfs_vol.lbn_size; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
808 redo_rootvp = 1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
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diff
changeset
|
809 has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
810 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
811 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
812 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
813 if (redo_rootvp) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
814 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
815 * Make sure not to use Rock Ridge. |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
816 */ |
|
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PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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parents:
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diff
changeset
|
817 UNSET_IMPL_BIT(fsp, RRIP_BIT); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
818 UNSET_SUSP_BIT(fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
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changeset
|
819 has_rrip = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
820 |
|
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PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
821 if (!hs_getrootvp(vfsp, fsp, pathbufsz)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
822 DTRACE_PROBE1(rootvp__failed, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
823 error = EINVAL; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
824 goto cleanup; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
825 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
826 DTRACE_PROBE1(rootvp, struct hsfs *, fsp); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
827 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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parents:
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diff
changeset
|
828 if (IS_RRIP_IMPLEMENTED(fsp)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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parents:
1488
diff
changeset
|
829 has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
830 has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
831 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
832 if (force_vers2_off) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
833 has_vers2 = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
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diff
changeset
|
834 if (force_joliet_off) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
835 has_joliet = 0; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
836 DTRACE_PROBE4(voltype__taken, struct hsfs *, fsp, |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
837 int, has_rrip, int, has_vers2, int, has_joliet); |
|
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 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
840 * mark root node as VROOT |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
841 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
842 fsp->hsfs_rootvp->v_flag |= VROOT; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
843 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
844 /* 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
|
845 if (isroot) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
846 fsp->hsfs_rootvp->v_rdev = devvp->v_rdev; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
847 rootvp = fsp->hsfs_rootvp; |
|
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 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
850 if (IS_RRIP_IMPLEMENTED(fsp)) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
851 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
852 * 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
|
853 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
854 mount_flags &= ~(HSFSMNT_NOMAPLCASE | HSFSMNT_NOTRAILDOT); |
|
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 fsp->hsfs_namemax = RRIP_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
857 fsp->hsfs_namelen = RRIP_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
858 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
859 ASSERT(vfs_optionisset(vfsp, HOPT_RR, NULL)); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
860 vfs_clearmntopt(vfsp, HOPT_VERS2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
861 vfs_clearmntopt(vfsp, HOPT_JOLIET); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
862 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
863 } else switch (fsp->hsfs_vol_type) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
864 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
865 case HS_VOL_TYPE_HS: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
866 case HS_VOL_TYPE_ISO: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
867 default: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
868 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
869 * 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
|
870 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
871 mount_flags |= HSFSMNT_NOTRAILSPACE; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
872 fsp->hsfs_namemax = ISO_NAMELEN_V2_MAX; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
873 fsp->hsfs_namelen = ISO_FILE_NAMELEN; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
874 vfs_clearmntopt(vfsp, HOPT_RR); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
875 vfs_clearmntopt(vfsp, HOPT_VERS2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
876 vfs_clearmntopt(vfsp, HOPT_JOLIET); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
877 break; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
878 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
879 case HS_VOL_TYPE_ISO_V2: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
880 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
881 * 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
|
882 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
883 mount_flags &= ~HSFSMNT_NOTRAILDOT; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
884 mount_flags |= HSFSMNT_NOMAPLCASE | HSFSMNT_NOVERSION; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
885 fsp->hsfs_namemax = ISO_NAMELEN_V2_MAX; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
886 fsp->hsfs_namelen = ISO_NAMELEN_V2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
887 vfs_setmntopt(vfsp, HOPT_VERS2, NULL, 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
888 vfs_clearmntopt(vfsp, HOPT_RR); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
889 vfs_clearmntopt(vfsp, HOPT_JOLIET); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
890 break; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
891 |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
892 case HS_VOL_TYPE_JOLIET: |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
893 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
894 * 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
|
895 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
896 mount_flags &= ~(HSFSMNT_NOMAPLCASE | HSFSMNT_NOTRAILDOT); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
897 mount_flags |= HSFSMNT_NOMAPLCASE; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
898 if (mount_flags & HSFSMNT_JOLIETLONG) |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
899 fsp->hsfs_namemax = JOLIET_NAMELEN_MAX*3; /* UTF-8 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
900 else |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
901 fsp->hsfs_namemax = MAXNAMELEN-1; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
902 fsp->hsfs_namelen = JOLIET_NAMELEN*2; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
903 vfs_setmntopt(vfsp, HOPT_JOLIET, NULL, 0); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
904 vfs_clearmntopt(vfsp, HOPT_RR); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
905 vfs_clearmntopt(vfsp, HOPT_VERS2); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
906 break; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
907 } |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
908 |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
909 /* |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
910 * 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
|
911 */ |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
912 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
|
913 |
| 5312 | 914 /* |
| 915 * Setup I/O Scheduling structures | |
| 916 */ | |
| 917 if (do_schedio) { | |
| 918 fsp->hqueue = kmem_alloc(sizeof (struct hsfs_queue), KM_SLEEP); | |
| 919 hsched_init(fsp, fsid, &modlinkage); | |
| 920 } | |
| 921 | |
| 922 /* | |
| 923 * Setup kstats | |
| 924 */ | |
| 925 hsfs_init_kstats(fsp, fsid); | |
| 926 | |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
927 DTRACE_PROBE1(mount__done, struct hsfs *, fsp); |
|
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 /* |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
930 * set the magic word |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
931 */ |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
932 fsp->hsfs_magic = HSFS_MAGIC; |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
933 mutex_exit(&hs_mounttab_lock); |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
934 |
|
4866
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
935 kmem_free(svp, sizeof (*svp)); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
936 kmem_free(jvp, sizeof (*jvp)); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
frankho
parents:
4399
diff
changeset
|
937 |
|
2900
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
frankho
parents:
1488
diff
changeset
|
938 return (0); |
|
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939 |
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940 cleanup: |
| 5331 | 941 (void) VOP_CLOSE(devvp, FREAD, 1, (offset_t)0, cr, NULL); |
|
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942 VN_RELE(devvp); |
|
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943 if (fsp) |
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944 kmem_free(fsp, sizeof (*fsp)); |
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945 if (svp) |
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946 kmem_free(svp, sizeof (*svp)); |
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947 if (jvp) |
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948 kmem_free(jvp, sizeof (*jvp)); |
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949 return (error); |
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950 } |
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951 |
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952 /* |
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953 * Get the rootvp associated with fsp->hsfs_vol |
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954 */ |
|
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955 static int |
|
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956 hs_getrootvp( |
|
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957 struct vfs *vfsp, |
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958 struct hsfs *fsp, |
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959 size_t pathsize) |
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960 { |
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961 struct hsnode *hp; |
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962 |
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963 ASSERT(pathsize == strlen(fsp->hsfs_fsmnt) + 1); |
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964 |
| 0 | 965 /* |
| 966 * If the root directory does not appear to be | |
| 967 * valid, use what it points to as "." instead. | |
| 968 * Some Defense Mapping Agency disks are non-conformant | |
| 969 * in this way. | |
| 970 */ | |
| 971 if (!hsfs_valid_dir(&fsp->hsfs_vol.root_dir)) { | |
| 972 hs_log_bogus_disk_warning(fsp, HSFS_ERR_BAD_ROOT_DIR, 0); | |
| 973 if (hs_remakenode(fsp->hsfs_vol.root_dir.ext_lbn, | |
|
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974 (uint_t)0, vfsp, &fsp->hsfs_rootvp)) { |
|
1025
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975 hs_mounttab = hs_mounttab->hsfs_next; |
|
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976 mutex_destroy(&fsp->hsfs_free_lock); |
|
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977 rw_destroy(&fsp->hsfs_hash_lock); |
|
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978 kmem_free(fsp->hsfs_fsmnt, pathsize); |
|
494
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979 mutex_exit(&hs_mounttab_lock); |
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980 return (0); |
| 0 | 981 } |
| 982 } else { | |
| 983 fsp->hsfs_rootvp = hs_makenode(&fsp->hsfs_vol.root_dir, | |
|
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984 fsp->hsfs_vol.root_dir.ext_lbn, 0, vfsp); |
| 0 | 985 } |
| 986 | |
| 987 /* XXX - ignore the path table for now */ | |
| 988 fsp->hsfs_ptbl = NULL; | |
| 989 hp = VTOH(fsp->hsfs_rootvp); | |
| 990 hp->hs_ptbl_idx = NULL; | |
| 991 | |
|
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992 return (1); |
| 0 | 993 } |
| 994 | |
| 995 /* | |
| 996 * hs_findhsvol() | |
| 997 * | |
| 998 * Locate the Standard File Structure Volume Descriptor and | |
| 999 * parse it into an hs_volume structure. | |
| 1000 * | |
| 1001 * XXX - May someday want to look for Coded Character Set FSVD, too. | |
| 1002 */ | |
| 1003 static int | |
| 1004 hs_findhsvol(struct hsfs *fsp, struct vnode *vp, struct hs_volume *hvp) | |
| 1005 { | |
| 1006 struct buf *secbp; | |
| 1007 int i; | |
|
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1008 int n; |
| 0 | 1009 uchar_t *volp; |
| 1010 int error; | |
| 1011 uint_t secno; | |
| 1012 | |
| 1013 secno = hs_findvoldesc(vp->v_rdev, HS_VOLDESC_SEC); | |
| 1014 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); | |
| 1015 error = geterror(secbp); | |
| 1016 | |
| 1017 if (error != 0) { | |
| 1018 cmn_err(CE_NOTE, "hs_findhsvol: bread: error=(%d)", error); | |
| 1019 brelse(secbp); | |
| 1020 return (error); | |
| 1021 } | |
| 1022 | |
| 1023 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1024 | |
|
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1025 /* |
|
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1026 * To avoid that we read the whole medium in case that someone prepares |
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1027 * a malicious "fs image", we read at most 32 blocks. |
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1028 */ |
|
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1029 for (n = 0; n < 32 && |
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|
1030 HSV_DESC_TYPE(volp) != VD_EOV; n++) { |
| 0 | 1031 for (i = 0; i < HSV_ID_STRLEN; i++) |
| 1032 if (HSV_STD_ID(volp)[i] != HSV_ID_STRING[i]) | |
| 1033 goto cantfind; | |
| 1034 if (HSV_STD_VER(volp) != HSV_ID_VER) | |
| 1035 goto cantfind; | |
| 1036 switch (HSV_DESC_TYPE(volp)) { | |
| 1037 case VD_SFS: | |
| 1038 /* Standard File Structure */ | |
| 1039 fsp->hsfs_vol_type = HS_VOL_TYPE_HS; | |
| 1040 error = hs_parsehsvol(fsp, volp, hvp); | |
| 1041 brelse(secbp); | |
| 1042 return (error); | |
| 1043 | |
| 1044 case VD_CCFS: | |
| 1045 /* Coded Character File Structure */ | |
| 1046 case VD_BOOT: | |
| 1047 case VD_UNSPEC: | |
| 1048 case VD_EOV: | |
| 1049 break; | |
| 1050 } | |
| 1051 brelse(secbp); | |
| 1052 ++secno; | |
| 1053 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); | |
| 1054 | |
| 1055 error = geterror(secbp); | |
| 1056 | |
| 1057 if (error != 0) { | |
| 1058 cmn_err(CE_NOTE, "hs_findhsvol: bread: error=(%d)", | |
|
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|
1059 error); |
| 0 | 1060 brelse(secbp); |
| 1061 return (error); | |
| 1062 } | |
| 1063 | |
| 1064 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1065 } | |
| 1066 cantfind: | |
| 1067 brelse(secbp); | |
| 1068 return (EINVAL); | |
| 1069 } | |
| 1070 | |
| 1071 /* | |
| 1072 * hs_parsehsvol | |
| 1073 * | |
| 1074 * Parse the Standard File Structure Volume Descriptor into | |
| 1075 * an hs_volume structure. We can't just bcopy it into the | |
| 1076 * structure because of byte-ordering problems. | |
| 1077 * | |
| 1078 */ | |
| 1079 static int | |
| 1080 hs_parsehsvol(struct hsfs *fsp, uchar_t *volp, struct hs_volume *hvp) | |
| 1081 { | |
| 1082 hvp->vol_size = HSV_VOL_SIZE(volp); | |
| 1083 hvp->lbn_size = HSV_BLK_SIZE(volp); | |
| 1084 if (hvp->lbn_size == 0) { | |
| 1085 cmn_err(CE_NOTE, "hs_parsehsvol: logical block size in the " | |
|
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|
1086 "SFSVD is zero"); |
| 0 | 1087 return (EINVAL); |
| 1088 } | |
| 1089 hvp->lbn_shift = ffs((long)hvp->lbn_size) - 1; | |
|
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|
1090 hvp->lbn_secshift = |
|
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|
1091 ffs((long)howmany(HS_SECTOR_SIZE, (int)hvp->lbn_size)) - 1; |
| 0 | 1092 hvp->lbn_maxoffset = hvp->lbn_size - 1; |
| 1093 hs_parse_longdate(HSV_cre_date(volp), &hvp->cre_date); | |
| 1094 hs_parse_longdate(HSV_mod_date(volp), &hvp->mod_date); | |
| 1095 hvp->file_struct_ver = HSV_FILE_STRUCT_VER(volp); | |
| 1096 hvp->ptbl_len = HSV_PTBL_SIZE(volp); | |
| 1097 hvp->vol_set_size = (ushort_t)HSV_SET_SIZE(volp); | |
| 1098 hvp->vol_set_seq = (ushort_t)HSV_SET_SEQ(volp); | |
| 1099 #if defined(_LITTLE_ENDIAN) | |
| 1100 hvp->ptbl_lbn = HSV_PTBL_MAN_LS(volp); | |
| 1101 #else | |
| 1102 hvp->ptbl_lbn = HSV_PTBL_MAN_MS(volp); | |
| 1103 #endif | |
|
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|
1104 hs_copylabel(hvp, HSV_VOL_ID(volp), 0); |
| 0 | 1105 |
| 1106 /* | |
| 1107 * Make sure that lbn_size is a power of two and otherwise valid. | |
| 1108 */ | |
| 1109 if (hvp->lbn_size & ~(1 << hvp->lbn_shift)) { | |
| 1110 cmn_err(CE_NOTE, | |
|
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|
1111 "hsfs: %d-byte logical block size not supported", |
|
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4294956 hsfs creates wrong inode numbers for hard links
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|
1112 hvp->lbn_size); |
| 0 | 1113 return (EINVAL); |
| 1114 } | |
| 1115 return (hs_parsedir(fsp, HSV_ROOT_DIR(volp), &hvp->root_dir, | |
|
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|
1116 (char *)NULL, (int *)NULL, HDE_ROOT_DIR_REC_SIZE)); |
| 0 | 1117 } |
| 1118 | |
| 1119 /* | |
| 1120 * hs_findisovol() | |
| 1121 * | |
| 1122 * Locate the Primary Volume Descriptor | |
| 1123 * parse it into an hs_volume structure. | |
| 1124 * | |
|
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1125 * XXX - Partition not yet done |
|
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|
1126 * |
|
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1127 * Except for fsp->hsfs_vol_type, no fsp member may be modified. |
|
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|
1128 * fsp->hsfs_vol is modified indirectly via the *hvp argument. |
| 0 | 1129 */ |
| 1130 static int | |
| 1131 hs_findisovol(struct hsfs *fsp, struct vnode *vp, | |
|
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|
1132 struct hs_volume *hvp, |
|
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|
1133 struct hs_volume *svp, |
|
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|
1134 struct hs_volume *jvp) |
| 0 | 1135 { |
| 1136 struct buf *secbp; | |
| 1137 int i; | |
|
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|
1138 int n; |
| 0 | 1139 uchar_t *volp; |
| 1140 int error; | |
| 1141 uint_t secno; | |
| 1142 int foundpvd = 0; | |
|
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1143 int foundsvd = 0; |
|
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|
1144 int foundjvd = 0; |
|
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|
1145 int pvd_sum = 0; |
| 0 | 1146 |
| 1147 secno = hs_findvoldesc(vp->v_rdev, ISO_VOLDESC_SEC); | |
| 1148 secbp = bread(vp->v_rdev, secno * 4, ISO_SECTOR_SIZE); | |
| 1149 error = geterror(secbp); | |
| 1150 | |
| 1151 if (error != 0) { | |
| 1152 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", error); | |
| 1153 brelse(secbp); | |
| 1154 return (error); | |
| 1155 } | |
| 1156 | |
| 1157 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1158 | |
|
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|
1159 /* |
|
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|
1160 * To avoid that we read the whole medium in case that someone prepares |
|
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|
1161 * a malicious "fs image", we read at most 32 blocks. |
|
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|
1162 */ |
|
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|
1163 for (n = 0; n < 32 && |
|
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1164 (enum iso_voldesc_type) ISO_DESC_TYPE(volp) != ISO_VD_EOV; n++) { |
| 0 | 1165 for (i = 0; i < ISO_ID_STRLEN; i++) |
| 1166 if (ISO_STD_ID(volp)[i] != ISO_ID_STRING[i]) | |
| 1167 goto cantfind; | |
| 1168 switch (ISO_DESC_TYPE(volp)) { | |
| 1169 case ISO_VD_PVD: | |
| 1170 /* Standard File Structure */ | |
|
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1171 if (ISO_STD_VER(volp) != ISO_ID_VER) |
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|
1172 goto cantfind; |
| 0 | 1173 if (foundpvd != 1) { |
| 1174 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO; | |
| 1175 if (error = hs_parseisovol(fsp, volp, hvp)) { | |
| 1176 brelse(secbp); | |
| 1177 return (error); | |
| 1178 } | |
| 1179 foundpvd = 1; | |
|
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|
1180 for (i = 0; i < ISO_SECTOR_SIZE; i++) |
|
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|
1181 pvd_sum += volp[i]; |
| 0 | 1182 } |
| 1183 break; | |
| 1184 case ISO_VD_SVD: | |
| 1185 /* Supplementary Volume Descriptor */ | |
|
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1186 if (ISO_STD_VER(volp) == ISO_ID_VER2 && |
|
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|
1187 foundsvd != 1) { |
|
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|
1188 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO; |
|
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1189 if (error = hs_parseisovol(fsp, volp, svp)) { |
|
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1190 brelse(secbp); |
|
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1191 return (error); |
|
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|
1192 } |
|
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1193 foundsvd = 1; |
|
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|
1194 } |
|
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|
1195 if (hs_joliet_level(volp) >= 1 && foundjvd != 1) { |
|
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1196 fsp->hsfs_vol_type = HS_VOL_TYPE_ISO; |
|
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1197 if (error = hs_parseisovol(fsp, volp, jvp)) { |
|
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|
1198 brelse(secbp); |
|
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|
1199 return (error); |
|
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|
1200 } |
|
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|
1201 foundjvd = 1; |
|
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|
1202 } |
| 0 | 1203 break; |
| 1204 case ISO_VD_BOOT: | |
| 1205 break; | |
| 1206 case ISO_VD_VPD: | |
| 1207 /* currently cannot handle partition */ | |
| 1208 break; | |
| 1209 case VD_EOV: | |
| 1210 break; | |
| 1211 } | |
| 1212 brelse(secbp); | |
| 1213 ++secno; | |
| 1214 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); | |
| 1215 error = geterror(secbp); | |
| 1216 | |
| 1217 if (error != 0) { | |
| 1218 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", | |
|
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|
1219 error); |
| 0 | 1220 brelse(secbp); |
| 1221 return (error); | |
| 1222 } | |
| 1223 | |
| 1224 volp = (uchar_t *)secbp->b_un.b_addr; | |
| 1225 } | |
|
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|
1226 for (n = 0; n < 16; n++) { |
|
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|
1227 brelse(secbp); |
|
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|
1228 ++secno; |
|
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|
1229 secbp = bread(vp->v_rdev, secno * 4, HS_SECTOR_SIZE); |
|
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|
1230 error = geterror(secbp); |
|
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|
1231 |
|
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|
1232 if (error != 0) { |
|
34d9e5474e96
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|
1233 cmn_err(CE_NOTE, "hs_findisovol: bread: error=(%d)", |
|
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|
1234 error); |
|
34d9e5474e96
4294956 hsfs creates wrong inode numbers for hard links
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|
1235 brelse(secbp); |
|
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|
1236 return (error); |
|
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|
1237 } |
|
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|
1238 |
|
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|
1239 /* |
|
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|
1240 * Check for the signature from mkisofs that grants that |
|
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|
1241 * the current filesystem allows to use the extent lbn as |
|
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|
1242 * inode number even in pure ISO9660 mode. |
|
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|
1243 */ |
|
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|
1244 volp = (uchar_t *)secbp->b_un.b_addr; |
|
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|
1245 if (strncmp((char *)volp, "MKI ", 4) == 0) { |
|
34d9e5474e96
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|
1246 int sum; |
|
34d9e5474e96
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changeset
|
1247 |
|
34d9e5474e96
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changeset
|
1248 sum = volp[2045]; |
|
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|
1249 sum *= 256; |
|
34d9e5474e96
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|
1250 sum += volp[2046]; |
|
34d9e5474e96
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|
1251 sum *= 256; |
|
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|
1252 sum += volp[2047]; |
|
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|
1253 if (sum == pvd_sum) |
|
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changeset
|
1254 fsp->hsfs_flags |= HSFSMNT_INODE; |
|
34d9e5474e96
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|
1255 break; |
|
34d9e5474e96
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|
1256 } |
|
34d9e5474e96
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|
1257 } |
| 0 | 1258 if (foundpvd) { |
| 1259 brelse(secbp); | |
| 1260 return (0); | |
| 1261 } | |
| 1262 cantfind: | |
| 1263 brelse(secbp); | |
| 1264 return (EINVAL); | |
| 1265 } | |
|
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1266 |
|
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|
1267 /* |
|
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|
1268 * Return 0 if no Joliet is found |
|
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|
1269 * else return Joliet Level 1..3 |
|
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|
1270 */ |
|
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|
1271 static int |
|
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|
1272 hs_joliet_level(uchar_t *volp) |
|
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|
1273 { |
|
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|
1274 if (ISO_std_ver(volp)[0] == ISO_ID_VER && |
|
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|
1275 ISO_svd_esc(volp)[0] == '%' && |
|
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|
1276 ISO_svd_esc(volp)[1] == '/') { |
|
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|
1277 |
|
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changeset
|
1278 switch (ISO_svd_esc(volp)[2]) { |
|
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|
1279 |
|
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|
1280 case '@': |
|
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|
1281 return (1); |
|
8188e64c9073
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|
1282 case 'C': |
|
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|
1283 return (2); |
|
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|
1284 case 'E': |
|
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|
1285 return (3); |
|
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diff
changeset
|
1286 } |
|
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diff
changeset
|
1287 } |
|
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diff
changeset
|
1288 return (0); |
|
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diff
changeset
|
1289 } |
|
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changeset
|
1290 |
| 0 | 1291 /* |
| 1292 * hs_parseisovol | |
| 1293 * | |
| 1294 * Parse the Primary Volume Descriptor into an hs_volume structure. | |
| 1295 * | |
| 1296 */ | |
| 1297 static int | |
| 1298 hs_parseisovol(struct hsfs *fsp, uchar_t *volp, struct hs_volume *hvp) | |
| 1299 { | |
| 1300 hvp->vol_size = ISO_VOL_SIZE(volp); | |
| 1301 hvp->lbn_size = ISO_BLK_SIZE(volp); | |
| 1302 if (hvp->lbn_size == 0) { | |
| 1303 cmn_err(CE_NOTE, "hs_parseisovol: logical block size in the " | |
|
4866
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diff
changeset
|
1304 "PVD is zero"); |
| 0 | 1305 return (EINVAL); |
| 1306 } | |
| 1307 hvp->lbn_shift = ffs((long)hvp->lbn_size) - 1; | |
|
4866
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diff
changeset
|
1308 hvp->lbn_secshift = |
|
34d9e5474e96
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diff
changeset
|
1309 ffs((long)howmany(ISO_SECTOR_SIZE, (int)hvp->lbn_size)) - 1; |
| 0 | 1310 hvp->lbn_maxoffset = hvp->lbn_size - 1; |
| 1311 hs_parse_longdate(ISO_cre_date(volp), &hvp->cre_date); | |
| 1312 hs_parse_longdate(ISO_mod_date(volp), &hvp->mod_date); | |
| 1313 hvp->file_struct_ver = ISO_FILE_STRUCT_VER(volp); | |
| 1314 hvp->ptbl_len = ISO_PTBL_SIZE(volp); | |
| 1315 hvp->vol_set_size = (ushort_t)ISO_SET_SIZE(volp); | |
| 1316 hvp->vol_set_seq = (ushort_t)ISO_SET_SEQ(volp); | |
| 1317 #if defined(_LITTLE_ENDIAN) | |
| 1318 hvp->ptbl_lbn = ISO_PTBL_MAN_LS(volp); | |
| 1319 #else | |
| 1320 hvp->ptbl_lbn = ISO_PTBL_MAN_MS(volp); | |
| 1321 #endif | |
|
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changeset
|
1322 hs_copylabel(hvp, ISO_VOL_ID(volp), hs_joliet_level(volp) >= 1); |
| 0 | 1323 |
| 1324 /* | |
| 1325 * Make sure that lbn_size is a power of two and otherwise valid. | |
| 1326 */ | |
| 1327 if (hvp->lbn_size & ~(1 << hvp->lbn_shift)) { | |
| 1328 cmn_err(CE_NOTE, | |
|
4866
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|
1329 "hsfs: %d-byte logical block size not supported", |
|
34d9e5474e96
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diff
changeset
|
1330 hvp->lbn_size); |
| 0 | 1331 return (EINVAL); |
| 1332 } | |
| 1333 return (hs_parsedir(fsp, ISO_ROOT_DIR(volp), &hvp->root_dir, | |
|
4866
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diff
changeset
|
1334 (char *)NULL, (int *)NULL, IDE_ROOT_DIR_REC_SIZE)); |
| 0 | 1335 } |
| 1336 | |
| 1337 /* | |
| 1338 * Common code for mount and umount. | |
| 1339 * Check that the user's argument is a reasonable | |
| 1340 * thing on which to mount, and return the device number if so. | |
| 1341 */ | |
| 1342 static int | |
| 1343 hs_getmdev(struct vfs *vfsp, char *fspec, int flags, dev_t *pdev, mode_t *mode, | |
| 1344 cred_t *cr) | |
| 1345 { | |
| 1346 int error; | |
| 6734 | 1347 struct vnode *svp = NULL; |
| 1348 struct vnode *lvp = NULL; | |
| 1349 struct vnode *bvp; | |
| 0 | 1350 struct vattr vap; |
| 1351 dev_t dev; | |
| 6734 | 1352 enum uio_seg fromspace = (flags & MS_SYSSPACE) ? |
| 1353 UIO_SYSSPACE : UIO_USERSPACE; | |
| 0 | 1354 |
| 1355 /* | |
| 6734 | 1356 * Look up the device/file to be mounted. |
| 0 | 1357 */ |
| 6734 | 1358 error = lookupname(fspec, fromspace, FOLLOW, NULLVPP, &svp); |
| 0 | 1359 if (error) { |
| 6734 | 1360 if (error == ENOENT) |
| 1361 error = ENODEV; | |
| 1362 goto out; | |
| 0 | 1363 } |
| 1364 | |
| 6734 | 1365 error = vfs_get_lofi(vfsp, &lvp); |
| 1366 | |
| 1367 if (error > 0) { | |
| 1368 if (error == ENOENT) | |
| 1369 error = ENODEV; | |
| 1370 goto out; | |
| 1371 } else if (error == 0) { | |
| 1372 bvp = lvp; | |
| 1373 } else { | |
| 1374 bvp = svp; | |
| 1375 | |
| 1376 if (bvp->v_type != VBLK) { | |
| 1377 error = ENOTBLK; | |
| 1378 goto out; | |
| 1379 } | |
| 1380 | |
| 1381 if ((error = secpolicy_spec_open(cr, bvp, FREAD)) != 0) | |
| 1382 goto out; | |
| 1383 } | |
| 1384 | |
| 1385 /* | |
| 1386 * Can we read from the device/file ? | |
| 1387 */ | |
| 1388 if ((error = VOP_ACCESS(svp, VREAD, 0, cr, NULL)) != 0) | |
| 1389 goto out; | |
| 1390 | |
| 0 | 1391 vap.va_mask = AT_MODE; /* get protection mode */ |
| 6734 | 1392 (void) VOP_GETATTR(bvp, &vap, 0, CRED(), NULL); |
| 0 | 1393 *mode = vap.va_mode; |
| 1394 | |
| 6734 | 1395 dev = *pdev = bvp->v_rdev; |
| 1396 | |
| 1397 error = EBUSY; | |
| 0 | 1398 |
| 1399 /* | |
| 1400 * Ensure that this device isn't already mounted, | |
| 1401 * unless this is a REMOUNT request or we are told to suppress | |
| 1402 * mount checks. | |
| 1403 */ | |
| 1404 if ((flags & MS_NOCHECK) == 0) { | |
| 1405 if (vfs_devmounting(dev, vfsp)) | |
| 6734 | 1406 goto out; |
| 0 | 1407 if (vfs_devismounted(dev) && !(flags & MS_REMOUNT)) |
| 6734 | 1408 goto out; |
| 0 | 1409 } |
| 1410 | |
| 6734 | 1411 if (getmajor(*pdev) >= devcnt) { |
| 1412 error = ENXIO; | |
| 1413 goto out; | |
| 1414 } | |
| 1415 | |
| 1416 error = 0; | |
| 1417 out: | |
| 1418 if (svp != NULL) | |
| 1419 VN_RELE(svp); | |
| 1420 if (lvp != NULL) | |
| 1421 VN_RELE(lvp); | |
| 1422 return (error); | |
| 0 | 1423 } |
| 1424 | |
| 1425 static void | |
|
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changeset
|
1426 hs_copylabel(struct hs_volume *hvp, unsigned char *label, int isjoliet) |
| 0 | 1427 { |
|
2900
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diff
changeset
|
1428 char lbuf[64]; /* hs_joliet_cp() creates 48 bytes at most */ |
|
8188e64c9073
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diff
changeset
|
1429 |
|
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diff
changeset
|
1430 if (isjoliet) { |
|
8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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diff
changeset
|
1431 /* |
|
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diff
changeset
|
1432 * hs_joliet_cp() will output 16..48 bytes. |
|
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diff
changeset
|
1433 * We need to clear 'lbuf' to avoid junk chars past byte 15. |
|
8188e64c9073
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parents:
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diff
changeset
|
1434 */ |
|
8188e64c9073
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parents:
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diff
changeset
|
1435 bzero(lbuf, sizeof (lbuf)); |
|
2904
6c8662f98a22
4065963 RFE: Joliet Extension to ISO 9660 cdrom support (fix cstyle)
frankho
parents:
2903
diff
changeset
|
1436 (void) hs_joliet_cp((char *)label, lbuf, 32); |
|
2900
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changeset
|
1437 label = (unsigned char *)lbuf; |
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8188e64c9073
PSARC 2006/509 HSFS extensions for Joliet/ISO9660:v2
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1438 } |
| 0 | 1439 /* cdrom volid is at most 32 bytes */ |
| 1440 bcopy(label, hvp->vol_id, 32); | |
| 1441 hvp->vol_id[31] = NULL; | |
| 1442 } | |
| 1443 | |
| 1444 /* | |
| 1445 * Mount root file system. | |
| 1446 * "why" is ROOT_INIT on initial call, ROOT_REMOUNT if called to | |
| 1447 * remount the root file system, and ROOT_UNMOUNT if called to | |
| 1448 * unmount the root (e.g., as part of a system shutdown). | |
| 1449 * | |
| 1450 * XXX - this may be partially machine-dependent; it, along with the VFS_SWAPVP | |
| 1451 * operation, goes along with auto-configuration. A mechanism should be | |
| 1452 * provided by which machine-INdependent code in the kernel can say "get me the | |
| 1453 * right root file system" and "get me the right initial swap area", and have | |
| 1454 * that done in what may well be a machine-dependent fashion. | |
| 1455 * Unfortunately, it is also file-system-type dependent (NFS gets it via | |
| 1456 * bootparams calls, UFS gets it from various and sundry machine-dependent | |
| 1457 * mechanisms, as SPECFS does for swap). | |
| 1458 */ | |
| 1459 static int | |
| 1460 hsfs_mountroot(struct vfs *vfsp, enum whymountroot why) | |
| 1461 { | |
| 1462 int error; | |
| 1463 struct hsfs *fsp; | |
| 1464 struct hs_volume *fvolp; | |
| 1465 static int hsfsrootdone = 0; | |
| 1466 dev_t rootdev; | |
| 1467 mode_t mode = 0; | |
| 1468 | |
| 1469 if (why == ROOT_INIT) { | |
| 1470 if (hsfsrootdone++) | |
| 1471 return (EBUSY); | |
| 1472 rootdev = getrootdev(); | |
| 1473 if (rootdev == (dev_t)NODEV) | |
| 1474 return (ENODEV); | |
| 1475 vfsp->vfs_dev = rootdev; | |
| 1476 vfsp->vfs_flag |= VFS_RDONLY; | |
| 1477 } else if (why == ROOT_REMOUNT) { | |
| 1478 cmn_err(CE_NOTE, "hsfs_mountroot: ROOT_REMOUNT"); | |
| 1479 return (0); | |
| 1480 } else if (why == ROOT_UNMOUNT) { | |
| 1481 return (0); | |
| 1482 } | |
| 1483 error = vfs_lock(vfsp); | |
| 1484 if (error) { | |
| 1485 cmn_err(CE_NOTE, "hsfs_mountroot: couldn't get vfs_lock"); | |
| 1486 return (error); | |
| 1487 } | |
| 1488 | |
| 1489 error = hs_mountfs(vfsp, rootdev, "/", mode, 1, CRED(), 1); | |
| 1490 /* | |
| 1491 * XXX - assumes root device is not indirect, because we don't set | |
| 1492 * rootvp. Is rootvp used for anything? If so, make another arg | |
| 1493 * to mountfs. | |
| 1494 */ | |
| 1495 if (error) { | |
| 1496 vfs_unlock(vfsp); | |
| 1497 if (rootvp) { | |
| 1498 VN_RELE(rootvp); | |
| 1499 rootvp = (struct vnode *)0; | |
| 1500 } | |
| 1501 return (error); | |
| 1502 } | |
| 1503 if (why == ROOT_INIT) | |
| 1504 vfs_add((struct vnode *)0, vfsp, | |
| 1505 (vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0); | |
| 1506 vfs_unlock(vfsp); | |
| 1507 fsp = VFS_TO_HSFS(vfsp); | |
| 1508 fvolp = &fsp->hsfs_vol; | |
| 1509 #ifdef HSFS_CLKSET | |
| 1510 if (fvolp->cre_date.tv_sec == 0) { | |
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1511 cmn_err(CE_NOTE, "hsfs_mountroot: cre_date.tv_sec == 0"); |
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1512 if (fvolp->mod_date.tv_sec == 0) { |
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1513 cmn_err(CE_NOTE, |
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1514 "hsfs_mountroot: mod_date.tv_sec == 0"); |
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1515 cmn_err(CE_NOTE, "hsfs_mountroot: clkset(-1L)"); |
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1516 clkset(-1L); |
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1517 } else { |
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1518 clkset(fvolp->mod_date.tv_sec); |
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1519 } |
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1520 } else { |
| 0 | 1521 clkset(fvolp->mod_date.tv_sec); |
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1522 } |
| 0 | 1523 #else /* HSFS_CLKSET */ |
| 1524 clkset(-1L); | |
| 1525 #endif /* HSFS_CLKSET */ | |
| 1526 return (0); | |
| 1527 } | |
| 1528 | |
| 1529 /* | |
| 1530 * hs_findvoldesc() | |
| 1531 * | |
| 1532 * Return the sector where the volume descriptor lives. This is | |
| 1533 * a fixed value for "normal" cd-rom's, but can change for | |
| 1534 * multisession cd's. | |
| 1535 * | |
| 1536 * desc_sec is the same for high-sierra and iso 9660 formats, why | |
| 5331 | 1537 * there are two different #defines used in the code for this is |
| 0 | 1538 * beyond me. These are standards, cast in concrete, right? |
| 1539 * To be general, however, this function supports passing in different | |
| 1540 * values. | |
| 1541 */ | |
| 1542 static int | |
| 1543 hs_findvoldesc(dev_t rdev, int desc_sec) | |
| 1544 { | |
| 1545 int secno; | |
| 1546 int error; | |
| 1547 int rval; /* ignored */ | |
| 1548 | |
| 1549 #ifdef CDROMREADOFFSET | |
| 1550 /* | |
| 1551 * Issue the Read Offset ioctl directly to the | |
| 1552 * device. Ignore any errors and set starting | |
| 1553 * secno to the default, otherwise add the | |
| 1554 * VOLDESC sector number to the offset. | |
| 1555 */ | |
| 1556 error = cdev_ioctl(rdev, CDROMREADOFFSET, (intptr_t)&secno, | |
| 1557 FNATIVE|FKIOCTL|FREAD, CRED(), &rval); | |
| 1558 if (error) { | |
| 1559 secno = desc_sec; | |
| 1560 } else { | |
| 1561 secno += desc_sec; | |
| 1562 } | |
| 1563 #else | |
| 1564 secno = desc_sec; | |
| 1565 #endif | |
| 1566 | |
| 1567 return (secno); | |
| 1568 } |